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  <url>
    <loc>https://www.martinordonez.com/new-gallery</loc>
    <changefreq>daily</changefreq>
    <priority>0.75</priority>
    <lastmod>2017-03-17</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1489783399112-UZL84U8X6TIXPSFJC0J0/b9d63f_5d828dedbfb547f3aa6723fd056a52ce-mv2.png</image:loc>
      <image:title>R&amp;D - Grid-Tied Applications</image:title>
      <image:caption>Project: Bidirectional Grid Tied Inverter Based on Multilevel Platform Year: 2015 The objective of this project is to develop a multilevel converter platform and deploy it as a bidirectional grid-tied inverter. The platform is based on the 3-level Active Neutral Point Clamped (ANPC) or Diode Clamped Topology. This is a flexible platform that allows the desired bidirectional operation and may be combined with other platforms or converters to further expand its capabilities. Combining the ANPC with a DSP and signal sensing allows the experimentation of different control techniques and modulation schemes with the goal of creating a 3-phase bidirectional grid-tied inverter for varied applications. The platform is constantly revised and utilized in different projects.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1489783399112-UZL84U8X6TIXPSFJC0J0/b9d63f_5d828dedbfb547f3aa6723fd056a52ce-mv2.png</image:loc>
      <image:title>R&amp;D - Grid-Tied Applications</image:title>
      <image:caption>Project: Bidirectional Grid Tied Inverter Based on Multilevel Platform Year: 2015 The objective of this project is to develop a multilevel converter platform and deploy it as a bidirectional grid-tied inverter. The platform is based on the 3-level Active Neutral Point Clamped (ANPC) or Diode Clamped Topology. This is a flexible platform that allows the desired bidirectional operation and may be combined with other platforms or converters to further expand its capabilities. Combining the ANPC with a DSP and signal sensing allows the experimentation of different control techniques and modulation schemes with the goal of creating a 3-phase bidirectional grid-tied inverter for varied applications. The platform is constantly revised and utilized in different projects.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1489783399244-O9HOD40G740LMQ2XI5YP/b9d63f_8bcacbb982574221b04bad68187b1ea3-mv2.png</image:loc>
      <image:title>R&amp;D - Wireless Power Transfer</image:title>
      <image:caption>Project: Wireless Power Transfer Planar Spiral Winding Design Applying Track-Width-Ratio Year: 2014 This work established a new method to improve and analyze the quality factor (Q) of wireless power transfer planar spiral windings using a non-unity Track-Width-Ratio (TWR) geometrical arrangement. The results made full use of the ability to change the width of the traces to improve Q for wireless powered applications. A unified dimensional system framework was proposed, covering the racetrack geometry and its derivatives - circular, rectangular, generalized octagonal, and traditional racetrack windings. The resulting dimensional system provided an accurate geometrical description of the windings to obtain high Q and a simple set of manufacturing specifications. Details and derivations of this new method to calculate inductance, DC resistance, and AC resistance estimation to obtain improved Q were presented, along with experimental verification.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1489783406259-ELHHZNJFLB9P57HLU7FY/b9d63f_8e9e651580e14426a6c9d82cc237a769-mv2.png</image:loc>
      <image:title>R&amp;D - Grid-Tied Applications</image:title>
      <image:caption>Project: LCL-filter for grid-tie converters Year: 2014 LCL-filters allow the use of smaller inductance values for the connection filters of grid-tie converters. However, the LCL-filter resonance can cause stability problems and must be damped. Passive damping (resistors in series with the LCL-filter capacitors) results in additional losses. Therefore, it is most advantageous to use active damping by using adequate control techniques. In the first part of the research project, the resonance frequency is measured and a properly tuned notch filter is located at the output of voltage reference to avoid the resonance excitation. In the second part, the robust design of the LCL-filter against large grid inductance variations, typical of weak grids, is considered. This research project was jointly done with Aalborg University, Denmark.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1489783404273-OVHUMN1E68Z6VAMGHS73/b9d63f_44e618b60e08485fb4241d29ebe694f2-mv2.png</image:loc>
      <image:title>R&amp;D - PWM-Geometric Control for Power Electronics</image:title>
      <image:caption>Project: Average Natural Trajectories and Centric-Based Control Year: 2014 A novel control scheme that combines the advantages of fixed frequency PWM with state-plane geometric analysis is introduced to obtain fast and reliable large-signal response. The natural evolution of the average state variables is described by a large-signal model, which provides the basis to develop a reliable non-linear control scheme. The proposed technique is suitable for implementation in low cost DSPs, using low bandwidth sensing stages, and it features fast, sleek and consistent dynamic response with constant switching frequency. The contributions made to the theoretical and applied field are valid for any combination of reactive components due to the normalized approach adopted. The theoretical concepts are supported by detailed mathematical procedures. The proposed theory and controller are validated by experimental results.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1489783410792-VCDHRLWH2PCG6AV7BUIZ/b9d63f_76c3bd626bb14fe7be344c1fe08425bf-mv2.png</image:loc>
      <image:title>R&amp;D - PWM-Geometric Control for Power Electronics</image:title>
      <image:caption>Project: PWM-Geometric Control of Power Converters Year: 2015 The concept of dual-loop geometric based control is introduced in this work by combining geometric state-plane analysis for the outer voltage loop with traditional current control techniques for the inner loop. The voltage loop PI compensator is replaced by a geometric (GI) alternative that tightly controls the time-domain evolution of the state variables, providing a reliable transient response by following a desired geometrical path to reach the target steady state operating point. In this way, dynamic requirements can be successfully addressed through shaping the state variables’ time-evolution by employing a simple geometric equation to define the voltage compensator. Straight line and circular trajectories are implemented using simple parametric equations, resulting in remarkably well defined, reliable transient behaviour. The circular (non-linear) GI compensators must be implemented digitally, either by solving the geometric equations on the fly, or by pre-loading the compensators in look-up tables. Experimental results of dual-loop geometric-based controlled 50W platform validate the proposed control concept and highlight the strong contribution to the applied field made by this innovative controller.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1489783410912-JTTGPJSUHVUBUPZCZDN6/b9d63f_432db205541f4572b80b98a1df4b475c-mv2.png</image:loc>
      <image:title>R&amp;D - Grid-Tied Applications</image:title>
      <image:caption>Project: Multifunctional inverter for renewable energy generation Year: 2014 In this project, a 3-phase inverter is designed to provide independent provision of active, reactive, and harmonic currents to the electrical grid. This multifunctional inverter, thus, is able to provide active filtering of individual harmonics (up to the 17th harmonic) while injecting active power to the grid. The multifunctional inverter is controlled by a digital signal controller that executes in real time the measuring of 6 signals, the active and reactive power control, the individual calculation and control of each harmonic on a 100 microsecond time interval. The project searches to maximize the functionality of the inverter by implementing an algorithm that continuously selects the maximum filtering capabilities of the inverter based on its power rating and the incoming power from the renewable source.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1489783415764-ELAS9WZWHPGZWQGRAFFN/b9d63f_8187e946693b4b398306ee4b2b3f1faf-mv2.png</image:loc>
      <image:title>R&amp;D - Power Converters Controllers Characterization</image:title>
      <image:caption>Project: Dynamic Physical Limits in Power Converters Year: 2013 This work presents accurate and practical dynamic performance benchmarking rules for power converters that result from establishing the dynamic physical limits of the system. The theoretical limits of performance during transients are found in a normalized form, providing valuable insight into the behaviour of the topologies for any combination of LC parameters and input/output voltages, facilitating a benchmarking tool for power electronics control designers/researchers. The proposed dynamic performance benchmarking procedures are illustrated by comparing the response of several recently proposed controllers with the time-optimal response. Significant contributions are made to both theoretical and applied fields by providing insightful derivations and characterizations of the theoretical optimum dynamic response as well as a simple and powerful benchmarking tool to aid the control design.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1489783418730-KP79MM6PB0UTNBO3A97W/b9d63f_a0d9b44fe45f4536b0dacce824f734fe-mv2.png</image:loc>
      <image:title>R&amp;D - Grid-Tied Applications</image:title>
      <image:caption>Project: LCL-filter for grid-tie converters Year: 2014 LCL-filters allow the use of smaller inductance values for the connection filters of grid-tie converters. However, the LCL-filter resonance can cause stability problems and must be damped. Passive damping (resistors in series with the LCL-filter capacitors) results in additional losses. Therefore, it is most advantageous to use active damping by using adequate control techniques. In the first part of the research project, the resonance frequency is measured and a properly tuned notch filter is located at the output of voltage reference to avoid the resonance excitation. In the second part, the robust design of the LCL-filter against large grid inductance variations, typical of weak grids, is considered. This research project was jointly done with Aalborg University, Denmark.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1489783422916-SYXS6KI32UICSSWY4Y2Z/b9d63f_a27562f25aa1468a8490908a35ac30c8-mv2.png</image:loc>
      <image:title>R&amp;D - HVDC Converters for Off-Shore Wind Turbines</image:title>
      <image:caption>Project: Hi-Power VSC-HVDC converter stability and control Year: 2014 In this project, a new solution for dealing with the stability of high power VSC-HVDC converters is tested and validated. The solution is named RHP zero shifthing+damping and is used to improve the stability of VSC-HVDC converters affected by the adverse effects of the non-minimum phase behaviour. Thanks to RHP zero shifthing+damping the HVDC system is able to perform faster control over its direct voltage dynamics without losing stability due to the non-minimum phase behaviour of the plant: This results in savings in implementation cost of HVDC systems and improved support of the HVDC system to the ac network dynamics. The RHP zero shifthing+damping solution was tested and validated in a scaled-down 1kW VSC prototype.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1489783421813-GFL2OBIVTDEVF9TO12BX/b9d63f_e99181fa22a149648d641581580eabcd-mv2.png</image:loc>
      <image:title>R&amp;D - Wind Energy Harvesting</image:title>
      <image:caption>Project: Ripple Current Reduction in Variable Speed Wind Turbines Year: 2014 Driven by the demand for environmentally friendly power sources, small-scale renewable power generation is increasing dramatically. This project consists of the characterization and mitigation of the effect inverter type loads have on small-scale wind turbines in grid-tie applications. Inverter loads consist of rectified sinusoidal currents at twice the line frequency which tend to cause ripple currents and torque in the wind turbine, leading to excessive bearing wear, higher losses, and eventually premature failure. Through the use of clever control techniques and digital filtering the negative impact of the inverter on the wind turbine can be removed and system size and cost can be reduced while increasing reliability.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1489783424553-IIG7QAYXPI5KMQ3F2BLM/b9d63f_eb5ceef4d59b49b9b58a42ea74902595-mv2.png</image:loc>
      <image:title>R&amp;D - Photovoltaic Power Generation</image:title>
      <image:caption>Project: Photovoltaic Maximum Power Point Tracking Year: 2014 In this project, novel MPPT algorithms and devices are implemented in order to improve power transfer, tackling key factors of the MPPT algorithms. Such factors include steady state behaviour (oscillations and perturbation in the operating point), environmental changes tracking (errors during transient conditions and accurate tracking during the events) and local maxima and mismatch (partial shading). This project produced several algorithms and control techniques oriented to PV panels that tackle the aforementioned problems. Simulations and experimental work were carried out to validate the algorithm and illustrate different operating conditions.</image:caption>
    </image:image>
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    <lastmod>2024-09-24</lastmod>
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  <url>
    <loc>https://www.martinordonez.com/about-martin</loc>
    <changefreq>daily</changefreq>
    <priority>0.75</priority>
    <lastmod>2023-06-28</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1489721584742-C3V7FLVGYPRQ2H3D4JNG/image-asset.jpeg</image:loc>
      <image:title>About Martin</image:title>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1490314211537-907SV83UJX9QKTXKNAAD/alejandro-escamilla-4-sm-filter.png</image:loc>
      <image:title>About Martin</image:title>
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  </url>
  <url>
    <loc>https://www.martinordonez.com/projects</loc>
    <changefreq>daily</changefreq>
    <priority>0.75</priority>
    <lastmod>2017-09-25</lastmod>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1491865713730-QKFXQOHYA2CG3NUVJNJY/image-asset.png</image:loc>
      <image:title>Research and Development - Electric Vehicle Technologies: Resonant Power Converter as a Battery Charger for Electric Vehicle ( 2014)</image:title>
      <image:caption>Recently, the technology of rechargeable battery packs (Li-Ion, Lead-Acid, NiMH etc.) has been improved for deeply discharged conditions in order to provide more energy for powering electric motors in electric vehicles (EVs). In this project, higher order softly switched resonant converters and new modulation techniques are employed in the fabrication of a new industrial-grade product. The proposed charger structures can regulate the output voltage in a wide range and deliver power from the main to the battery with high efficiency, ripple-free current that fully supports battery charging profiles.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1491866009077-IEURP2RZXDD3U0TDAP62/image-asset.png</image:loc>
      <image:title>Research and Development - HVDC Converters for Off-Shore Wind Turbines: Hi-Power VSC-HVDC converter stability and control ( 2014)</image:title>
      <image:caption>In this project, a new solution for dealing with the stability of high power VSC-HVDC converters is tested and validated. The solution is named RHP zero shifthing+damping and is used to improve the stability of VSC-HVDC converters affected by the adverse effects of the non-minimum phase behaviour. Thanks to RHP zero shifthing+damping the HVDC system is able to perform faster control over its direct voltage dynamics without losing stability due to the non-minimum phase behaviour of the plant: This results in savings in implementation cost of HVDC systems and improved support of the HVDC system to the ac network dynamics. The RHP zero shifthing+damping solution was tested and validated in a scaled-down 1kW VSC prototype.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1491865625938-V8WDVPVNY9XLQ737CKDL/image-asset.png</image:loc>
      <image:title>Research and Development - Wind Energy Harvesting: Ripple Current Reduction in Variable Speed Wind Turbines ( 2014)</image:title>
      <image:caption>Driven by the demand for environmentally friendly power sources, small-scale renewable power generation is increasing dramatically. This project consists of the characterization and mitigation of the effect inverter type loads have on small-scale wind turbines in grid-tie applications. Inverter loads consist of rectified sinusoidal currents at twice the line frequency which tend to cause ripple currents and torque in the wind turbine, leading to excessive bearing wear, higher losses, and eventually premature failure. Through the use of clever control techniques and digital filtering the negative impact of the inverter on the wind turbine can be removed and system size and cost can be reduced while increasing reliability.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1491865908622-UF5CEJ168B4GPOHC9JXW/image-asset.png</image:loc>
      <image:title>Research and Development - Wireless Power Transfer: Wireless Power Transfer Planar Spiral Winding Design Applying Track-Width-Ratio ( 2014)</image:title>
      <image:caption>This work established a new method to improve and analyze the quality factor (Q) of wireless power transfer planar spiral windings using a non-unity Track-Width-Ratio (TWR) geometrical arrangement. The results made full use of the ability to change the width of the traces to improve Q for wireless powered applications. A unified dimensional system framework was proposed, covering the racetrack geometry and its derivatives - circular, rectangular, generalized octagonal, and traditional racetrack windings. The resulting dimensional system provided an accurate geometrical description of the windings to obtain high Q and a simple set of manufacturing specifications. Details and derivations of this new method to calculate inductance, DC resistance, and AC resistance estimation to obtain improved Q were presented, along with experimental verification.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1491865118968-AK66S93FBGVWHAE4ENSP/b9d63f_5d828dedbfb547f3aa6723fd056a52ce-mv2.png</image:loc>
      <image:title>Research and Development - Grid-Tied Applications:   Bidirectional Grid Tied Inverter Based on Multilevel Platform (2015)</image:title>
      <image:caption>The objective of this project is to develop a multilevel converter platform and deploy it as a bidirectional grid-tied inverter. The platform is based on the 3-level Active Neutral Point Clamped (ANPC) or Diode Clamped Topology. This is a flexible platform that allows the desired bidirectional operation and may be combined with other platforms or converters to further expand its capabilities. Combining the ANPC with a DSP and signal sensing allows the experimentation of different control techniques and modulation schemes with the goal of creating a 3-phase bidirectional grid-tied inverter for varied applications. The platform is constantly revised and utilized in different projects.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1491865344834-4F354XENOMBZ0C55OJTC/image-asset.png</image:loc>
      <image:title>Research and Development - PWM-Geometric Control for Power Electronics: PWM-Geometric Control of Power Converters (2015)</image:title>
      <image:caption>The concept of dual-loop geometric based control is introduced in this work by combining geometric state-plane analysis for the outer voltage loop with traditional current control techniques for the inner loop. The voltage loop PI compensator is replaced by a geometric (GI) alternative that tightly controls the time-domain evolution of the state variables, providing a reliable transient response by following a desired geometrical path to reach the target steady state operating point. In this way, dynamic requirements can be successfully addressed through shaping the state variables’ time-evolution by employing a simple geometric equation to define the voltage compensator. Straight line and circular trajectories are implemented using simple parametric equations, resulting in remarkably well defined, reliable transient behaviour. The circular (non-linear) GI compensators must be implemented digitally, either by solving the geometric equations on the fly, or by pre-loading the compensators in look-up tables. Experimental results of dual-loop geometric-based controlled 50W platform validate the proposed control concept and highlight the strong contribution to the applied field made by this innovative controller.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1491865822609-5BPQNWKJ54CJEZTYX2XB/image-asset.png</image:loc>
      <image:title>Research and Development - Photovoltaic Power Generation: Photovoltaic Maximum Power Point Tracking ( 2014)</image:title>
      <image:caption>In this project, novel MPPT algorithms and devices are implemented in order to improve power transfer, tackling key factors of the MPPT algorithms. Such factors include steady state behaviour (oscillations and perturbation in the operating point), environmental change tracking (errors during transient conditions and accurate tracking during the events) and local maxima and mismatch (partial shading). This project produced several algorithms and control techniques oriented to PV panels that tackle the aforementioned problems. Simulations and experimental work were carried out to validate the algorithm and illustrate different operating conditions.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1491865226594-DYWGJ36XKG45RALNCRRK/image-asset.png</image:loc>
      <image:title>Research and Development - Grid-Tied Applications: LCL-filter for grid-tie converters ( 2014)</image:title>
      <image:caption>LCL-filters allow the use of smaller inductance values for the connection filters of grid-tie converters. However, the LCL-filter resonance can cause stability problems and must be damped. Passive damping (resistors in series with the LCL-filter capacitors) results in additional losses. Therefore, it is most advantageous to use active damping by using adequate control techniques. In the first part of the research project, the resonance frequency is measured and a properly tuned notch filter is located at the output of voltage reference to avoid the resonance excitation. In the second part, the robust design of the LCL-filter against large grid inductance variations, typical of weak grids, is considered. This research project was jointly done with Aalborg University, Denmark.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1491866107510-NVSCDAQ76S19P925WRTY/image-asset.png</image:loc>
      <image:title>Research and Development - Power Converters Controllers Characterization: Dynamic Physical Limits in Power Converters ( 2013)</image:title>
      <image:caption>This work presents accurate and practical dynamic performance benchmarking rules for power converters that result from establishing the dynamic physical limits of the system. The theoretical limits of performance during transients are found in a normalized form, providing valuable insight into the behaviour of the topologies for any combination of LC parameters and input/output voltages, facilitating a benchmarking tool for power electronics control designers/researchers. The proposed dynamic performance benchmarking procedures are illustrated by comparing the response of several recently proposed controllers with the time-optimal response. Significant contributions are made to both theoretical and applied fields by providing insightful derivations and characterizations of the theoretical optimum dynamic response as well as a simple and powerful benchmarking tool to aid the control design.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1491865503294-YPPZBPT1K72Q10DEVWMU/image-asset.png</image:loc>
      <image:title>Research and Development - Centric-Based Control for Power Electronics: Average Natural Trajectories and Centric-Based Control ( 2014)</image:title>
      <image:caption>A novel control scheme that combines the advantages of fixed frequency PWM with state-plane geometric analysis is introduced to obtain fast and reliable large-signal response. The natural evolution of the average state variables is described by a large-signal model, which provides the basis to develop a reliable non-linear control scheme. The proposed technique is suitable for implementation in low cost DSPs, using low bandwidth sensing stages, and it features fast, sleek and consistent dynamic response with constant switching frequency. The contributions made to the theoretical and applied field are valid for any combination of reactive components due to the normalized approach adopted. The theoretical concepts are supported by detailed mathematical procedures. The proposed theory and controller are validated by experimental results.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1491864753239-QTQDF0O62E58FPSMG1VA/b9d63f_432db205541f4572b80b98a1df4b475c-mv2.png</image:loc>
      <image:title>Research and Development - Grid-Tied Applications: Multifunctional inverter for renewable energy generation (2014)</image:title>
      <image:caption>In this project, a 3-phase inverter is designed to provide independent provision of active, reactive, and harmonic currents to the electrical grid. This multifunctional inverter, thus, is able to provide active filtering of individual harmonics (up to the 17th harmonic) while injecting active power to the grid. The multifunctional inverter is controlled by a digital signal controller that executes in real time the measuring of 6 signals, the active and reactive power control, the individual calculation and control of each harmonic on a 100 microsecond time interval. The project attempts to maximize the functionality of the inverter by implementing an algorithm that continuously selects the maximum filtering capabilities of the inverter based on its power rating and the incoming power from the renewable source.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1490327592863-P6QJ5PA0GNUTXCAZC2SY/scott-webb-55167-sm-filter.png</image:loc>
      <image:title>Research and Development</image:title>
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  <url>
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    <lastmod>2018-12-19</lastmod>
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  <url>
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    <lastmod>2025-11-16</lastmod>
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      <image:title>Publications</image:title>
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    <lastmod>2025-07-11</lastmod>
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      <image:title>TEAM</image:title>
      <image:caption>Martin Ordonez Canada Research Chair Professor, UBC Power Converters for Renewable Energy Systems mordonez@ieee.org LinkedIn</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/8f5b6b24-ac53-475f-9a99-4ae55c8b2ad0/Homayon.png</image:loc>
      <image:title>TEAM - Make it stand out</image:title>
      <image:caption>Homayon Soltani Ph.D. Student hsoltani@ece.ubc.ca LinkedIn</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1ec2c4dc-d43f-45fc-9a80-340f8ea483a1/Howard.jpg</image:loc>
      <image:title>TEAM - Make it stand out</image:title>
      <image:caption>Hao(Howard) Chen Ph.D. Student howardchen@ece.ubc.ca LinkedIn</image:caption>
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    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/72b614a1-089c-426e-8d10-15f0b4c261bd/Rolando.jpg</image:loc>
      <image:title>TEAM - Make it stand out</image:title>
      <image:caption>Rolando Aguilera Ph.D. Student rolo90@ece.ubc.ca LinkedIn</image:caption>
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    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1572288685763-3QIIKRM6YX9N6GLBOX2H/Emanuel+Serban.jpg</image:loc>
      <image:title>TEAM</image:title>
      <image:caption>Emanuel Serban Adjunct Professor Emanuel.Serban@ieee.org LinkedIn</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1625073252940-8SSXRQDUZQ2C04RW5XA3/1625015836108.JPEG</image:loc>
      <image:title>TEAM</image:title>
      <image:caption>Farhad Abbasi Ph.D. Student farhadab@student.ubc.ca LinkedIn</image:caption>
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    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/41aab633-56f5-43e6-bff4-194fbc7b7dc2/Gilbert.jpg</image:loc>
      <image:title>TEAM - Make it stand out</image:title>
      <image:caption>Jinji(Gilbert) Tan Ph.D. Student tanjinji@ece.ubc.ca LinkedIn</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1d046c83-d6db-46d5-b7b2-72f07af3b1a6/Francis.png</image:loc>
      <image:title>TEAM - Make it stand out</image:title>
      <image:caption>Francis(Yuqi) Fu MASc Student fran729@ubc.ece.ca LinkedIn</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/5f7ef0b1-8f74-4a24-9060-f967c0840d47/NavidZare.jpg</image:loc>
      <image:title>TEAM - Make it stand out</image:title>
      <image:caption>Navid Zare Kashani Ph.D. Student nkashani@ece.ubc.ca LinkedIn</image:caption>
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    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1496947052816-D2OJLSML6OWC2PBCLOZK/image-asset.png</image:loc>
      <image:title>TEAM - Maria Celeste Garcia</image:title>
      <image:caption>Maria Celeste Garcia Ph.D. Student mcele@ieee.org LinkedIn</image:caption>
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      <image:title>TEAM - Make it stand out</image:title>
      <image:caption>Thomas Boyle Ph.D. Student boyletm@ece.ubc.ca LinkedIn</image:caption>
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      <image:title>TEAM - Make it stand out</image:title>
      <image:caption>Anna Lykhohub MASc Student lyanna@ece.ubc.ca LinkedIn</image:caption>
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    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1490328837846-24CBZAYUDVFZA97S16IO/helloquence-61189-sm-filter.png</image:loc>
      <image:title>TEAM</image:title>
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  <url>
    <loc>https://www.martinordonez.com/fred-kaiser-chair</loc>
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    <lastmod>2023-06-28</lastmod>
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      <image:title>Fred Kaiser Chair</image:title>
      <image:caption>Source: UBC Public Affairs</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1527272142645-AUGDFPJE1JLW80CNC3N8/annie-spratt-80671.jpg</image:loc>
      <image:title>Fred Kaiser Chair</image:title>
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  </url>
  <url>
    <loc>https://www.martinordonez.com/canada-research-chair</loc>
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    <lastmod>2018-11-14</lastmod>
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      <image:title>Canada Research Chair</image:title>
      <image:caption>Source: Faculty of Forestry</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1493059252597-FA03YASVRQSL82WF58NR/deb-rousseau-94033-sm-filter.png</image:loc>
      <image:title>Canada Research Chair</image:title>
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  <url>
    <loc>https://www.martinordonez.com/sustaingineering</loc>
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    <lastmod>2018-11-08</lastmod>
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      <image:title>Sustaingineering - UBC Team</image:title>
      <image:caption>UBC Team</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1541011384643-H6IJQ9D344ON2VCTXS3S/Sustaingineering%2BTEC%2BTeam.jpg</image:loc>
      <image:title>Sustaingineering</image:title>
      <image:caption>TEC Team</image:caption>
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    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1493059826877-J44W7AKI9RLBB5W1Z56E/johan-mouchet-97138-sm-filter.png</image:loc>
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  <url>
    <loc>https://www.martinordonez.com/ieee-pels-vancouver</loc>
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    <lastmod>2025-01-30</lastmod>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/a09722a4-3aeb-4f70-9d97-38139f7531f0/IMG_7609.jpg</image:loc>
      <image:title>IEEE PELS Vancouver - Make it stand out</image:title>
      <image:caption>Navigating a Dynamic Career: From Power Systems to Engineering Leadership Dr. Michael Wrinch (Board President of Engineers Canada &amp; CEO/Founder of Hedgehog Industries)</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1550775825268-9S4MTXWACFZ3D60R8S35/20190213_113629.jpg</image:loc>
      <image:title>IEEE PELS Vancouver</image:title>
      <image:caption>Introduction to Embedded Software Development in Power Electronics Jan Hammer (University of British Columbia)</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1541701124605-Z41ZD384XZ1SPXAOVJUM/DSC04644.JPG</image:loc>
      <image:title>IEEE PELS Vancouver</image:title>
      <image:caption>Test Automation with LabVIEW Jerry Wu (Alpha Technologies Ltd.)</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1547073994807-VG4CXO1H5ECQAWAID8WL/20190109_120925.jpg</image:loc>
      <image:title>IEEE PELS Vancouver</image:title>
      <image:caption>Sustaingineering - Developing Student Talent and Sustainable Technology Matthieu Amyotte (University of British Columbia)</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1541701018180-Q4XL4PYQ285USDNRF6WB/CADEX.jpg</image:loc>
      <image:title>IEEE PELS Vancouver</image:title>
      <image:caption>Battery Health, Monitoring and Charging Navid Shafiei (University of British Columbia)</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1541701100471-1KQ49B4Q9YWMH5K6NYST/20180531_160538.jpg</image:loc>
      <image:title>IEEE PELS Vancouver</image:title>
      <image:caption>Modulation Design for Improved Efficiency in Solar PV Converters Emanuel Serban (Schneider Electric)</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/804c1c0b-3854-4027-9014-6373f66a3c62/IMG_2785.JPG</image:loc>
      <image:title>IEEE PELS Vancouver - Make it stand out</image:title>
      <image:caption>Challenges and innovation opportunities for electrifying the transportation sector Prof. Olivier Trescases (University of Toronto)</image:caption>
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    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1541701150619-R9B70KE6TICV0R6C30OP/NovaCor.JPEG</image:loc>
      <image:title>IEEE PELS Vancouver</image:title>
      <image:caption>Recent Innovations in Real-Time Simulation Ramin Mirzahosseini (RTDS Technologies Inc.)</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1556038877710-TD4KX8AX6EOXIG465DEY/1.jpg</image:loc>
      <image:title>IEEE PELS Vancouver</image:title>
      <image:caption>Safety Considerations for Electronics Development Nicholas Dohmeier (Delta-Q Technologies)</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1001b374-d254-4d30-be78-900b52e9080d/IMG_5127.JPG</image:loc>
      <image:title>IEEE PELS Vancouver - Make it stand out</image:title>
      <image:caption>Grid Modernization - Paving the path for the future D. Jim Papadoulis and Valentina Dabic (BC Hydro)</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1561071846457-A7B60TRWAAGWIGO0AH2A/20190613_141310.jpg</image:loc>
      <image:title>IEEE PELS Vancouver</image:title>
      <image:caption>Single Reference Six Pulse Modulation (SRSPM) for High-Frequency Pulsating DC Link Three-Phase Inverters Dr. Akshay Kumar Rathore (Concordia University)</image:caption>
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    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1541701138192-YEG9AA5OPL5CGMI8UGC1/IMG_20180718_134018.jpg</image:loc>
      <image:title>IEEE PELS Vancouver</image:title>
      <image:caption>Islanded Microgrid Energy Management Moein Manbachi (University of British Columbia)</image:caption>
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    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/707ecfd0-7b29-4742-8a26-a84f984eaab2/DSC00744.jpg</image:loc>
      <image:title>IEEE PELS Vancouver - Make it stand out</image:title>
      <image:caption>Multi-Input Converters Prof. Yaow-Ming Chen (Editor-at-Large IEEE Transactions on Power Electronics, Professor at National Taiwan University, Taiwan)</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/6a64e817-7259-4b9e-b7dc-f0900bbea347/_DSC7031-Enhanced-NR_cropped.jpg</image:loc>
      <image:title>IEEE PELS Vancouver - Make it stand out</image:title>
      <image:caption>Building BC’s Energy Future Chris O’Riley (President and CEO of BC Hydro)</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/b1ba2fe0-6381-4456-9a0c-c443089e3823/IMG_7882.jpg</image:loc>
      <image:title>IEEE PELS Vancouver - Make it stand out</image:title>
      <image:caption>Electrical Energy - Fueling Careers Tilman Thrum (Senior Principal and Managing Leader of Energy at Stantec)</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1574115652578-8VZO891PODOGXMCEE6N6/0.jpg</image:loc>
      <image:title>IEEE PELS Vancouver</image:title>
      <image:caption>EnerSys developments in lithium-ion storage technologies Joern Tinnemeyer and Victor Goncalves (EnerSys)</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/6acabdd5-4e5a-4725-8111-45503d4ff695/IMG_8045.jpg</image:loc>
      <image:title>IEEE PELS Vancouver - Make it stand out</image:title>
      <image:caption>From a Scientist to an Entrepreneur Allen Lau (Co-founder and former CEO of Wattpad)</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1541701171111-6UXTD5C9XQ2I4FPKXNAA/Plexim.JPG</image:loc>
      <image:title>IEEE PELS Vancouver</image:title>
      <image:caption>In-The-Loop Testing Of Power Electronic Systems Kristofer Eberle (Plexim, Inc.)</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1493059462267-GIIYLM628HVNUEINFVH8/gabriel-santiago-1596-sm-filter.png</image:loc>
      <image:title>IEEE PELS Vancouver</image:title>
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  </url>
  <url>
    <loc>https://www.martinordonez.com/contact</loc>
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    <lastmod>2025-04-08</lastmod>
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  <url>
    <loc>https://www.martinordonez.com/research-development/ev-battery-chargers</loc>
    <changefreq>daily</changefreq>
    <priority>0.75</priority>
    <lastmod>2019-12-14</lastmod>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1576292002130-C91QROM444X33F6ALQZR/bullet3-power-density.png</image:loc>
      <image:title>EV Battery Chargers</image:title>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1576291919977-NEMZT1PF1SKJAUVBME59/ev-battery-main.png</image:loc>
      <image:title>EV Battery Chargers</image:title>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1576291893366-PDI2EPNA9Q5KSS0W5JK3/distribution-board-car-main.png</image:loc>
      <image:title>EV Battery Chargers</image:title>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1576291966301-9CMUMSJ7FWFIKCQ2P9FP/bullet1-region-operation.png</image:loc>
      <image:title>EV Battery Chargers - Extended Region of Operation</image:title>
      <image:caption>Contrasting with usual battery chargers, the developed models regulate the output voltage in a wider range under different loading conditions.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1576291982879-UQS7KKIBE4H6DGSVZDFB/bullet2-battery.png</image:loc>
      <image:title>EV Battery Chargers - Improved Output Quality</image:title>
      <image:caption>By eliminating discontinuous charging mode and providing higher quality charging current, the life cycle of batteries is increased, and a noise-free environment for reliable battery management system (BMS) operation is achieved.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1576291944765-JY9HJZ1QVNO53S1J5P2F/power-supply-subtopic.png</image:loc>
      <image:title>EV Battery Chargers</image:title>
      <image:caption>.</image:caption>
    </image:image>
    <image:image>
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      <image:title>EV Battery Chargers</image:title>
    </image:image>
    <image:image>
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      <image:title>EV Battery Chargers</image:title>
    </image:image>
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    <loc>https://www.martinordonez.com/research-development/magnetics</loc>
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      <image:title>Magnetics</image:title>
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    <image:image>
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      <image:caption>.</image:caption>
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      <image:caption>Low Profile Magnetics allow for light and slick converters, since the volume demanded is decreased and heat dissipation is improved.</image:caption>
    </image:image>
    <image:image>
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      <image:title>Magnetics - Improved Thermal Modelling</image:title>
      <image:caption>Finite Element Analysis (FEM) allows for improved thermal modelling of magnetics and optimization in the selection of heat dissipation techniques.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1576306642238-4AA78RD5O7323I79E7QB/subtopic-magnetic-mobile.png</image:loc>
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      <image:title>Magnetics</image:title>
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  </url>
  <url>
    <loc>https://www.martinordonez.com/research-development/conversion-efficiency</loc>
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    <lastmod>2019-12-14</lastmod>
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      <image:title>Conversion  Efficiency</image:title>
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    <image:image>
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      <image:title>Conversion  Efficiency</image:title>
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      <image:title>Conversion  Efficiency</image:title>
      <image:caption>.</image:caption>
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      <image:title>Conversion  Efficiency - Improved Thermal Management</image:title>
      <image:caption>Lighter and more efficient thermal management design can be obtained when power losses are determined accurately.</image:caption>
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      <image:title>Conversion  Efficiency - Improved Efficiency</image:title>
      <image:caption>In-depth knowledge of circuit and component behaviour lead to smarter design choices and improved efficiency.</image:caption>
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    <loc>https://www.martinordonez.com/research-development/renewable-energy-systems</loc>
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    <lastmod>2019-12-16</lastmod>
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      <image:caption>.</image:caption>
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      <image:title>Renewable Energy Systems</image:title>
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      <image:caption>Development of smart control algorithms for converter and system level devices that interfaces distributed generation, energy users and storage.</image:caption>
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      <image:title>Renewable Energy Systems - Improved Energy Harvesting</image:title>
      <image:caption>Novel algorithm and model development to improve solar, wind and tidal energy harvesting under fluctuating environmental conditions.</image:caption>
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  <url>
    <loc>https://www.martinordonez.com/research-development/advanced-controllers</loc>
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    <lastmod>2019-12-08</lastmod>
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      <image:title>Advanced Controllers</image:title>
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      <image:caption>By employing accurate modelling techniques, the converter response can be predicted, ensuring direct convergence towards the target.</image:caption>
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    <image:image>
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      <image:title>Advanced Controllers</image:title>
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      <image:title>News &amp; Events - Make it stand out</image:title>
      <image:caption>Whatever it is, the way you tell your story online can make all the difference.</image:caption>
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    <image:image>
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      <image:title>News &amp; Events - Make it stand out</image:title>
      <image:caption>Whatever it is, the way you tell your story online can make all the difference.</image:caption>
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      <image:title>News &amp; Events - Make it stand out</image:title>
      <image:caption>Whatever it is, the way you tell your story online can make all the difference.</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1565811077940-ZH86ZC8W31O6DKFNUP7N/Matt%2Bdefense.jpeg</image:loc>
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      <image:title>News &amp; Events - Make it stand out</image:title>
      <image:caption>Whatever it is, the way you tell your story online can make all the difference.</image:caption>
    </image:image>
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      <image:title>News &amp; Events - Make it stand out</image:title>
      <image:caption>Whatever it is, the way you tell your story online can make all the difference.</image:caption>
    </image:image>
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      <image:title>News &amp; Events - Make it stand out</image:title>
      <image:caption>Whatever it is, the way you tell your story online can make all the difference.</image:caption>
    </image:image>
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    <loc>https://www.martinordonez.com/news-events</loc>
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    <lastmod>2019-08-16</lastmod>
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  <url>
    <loc>https://www.martinordonez.com/about-martin-1</loc>
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    <lastmod>2019-09-13</lastmod>
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    <loc>https://www.martinordonez.com/research-development/main</loc>
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    <priority>0.75</priority>
    <lastmod>2019-12-16</lastmod>
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      <image:title>R&amp;D - Renewable Energy systems</image:title>
      <image:caption>Special power converters and advanced algorithm enable the cost-effective adoption of renewable energy. Learn More</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1576489435682-B2EB78XR7WOCP1FVLPZX/ev-charger6.png</image:loc>
      <image:title>R&amp;D - EV Battery Chargers</image:title>
      <image:caption>High-efficiency miniaturized battery chargers for new generation electric vehicles. Learn More</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1576487495167-N4OQIBZ18O6NZEHOUS4Z/advance-controllers8.png</image:loc>
      <image:title>R&amp;D - advanced controllers</image:title>
      <image:caption>Digital non-linear control strategies that enable intelligent power conversion. Learn More</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1576488789334-JTRZHO8ZCU13890LJ8DR/magnetics5.png</image:loc>
      <image:title>R&amp;D - Magnetics</image:title>
      <image:caption>State-of-the-art advanced magnetics design for complex power converters. Learn More</image:caption>
    </image:image>
    <image:image>
      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1576488774290-3HB3GIPAWPQ37DEEFC5U/conversion-efficiency-main5.png</image:loc>
      <image:title>R&amp;D - Conversion Efficiency</image:title>
      <image:caption>Rapid power loss estimation in complex topologies for optimum converter design. Learn More</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/58c9932c893fc00bf44535bb/1541005389255-7SYNVG9OEX91IN4Q0HJ2/scott-webb-55167-unsplash.jpg</image:loc>
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