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Home Tech Electronics & Semiconductors

AI helps optimize power electronic converters

author by author
November 9, 2022
in Electronics & Semiconductors, Machine learning & AI
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AI helps optimise power electronic converters
Trade-off between the power electronic performance parameters. Credit: IEEE Open Journal of Power Electronics (2022). DOI: 10.1109/OJPEL.2022.3204630

A new and more efficient way of modeling and designing power electronic converters using artificial intelligence (AI) has been created by a team of experts from Cardiff University and the Compound Semiconductor Applications (CSA) Catapult.

The method has reduced design times for technology by up to 78% compared to traditional approaches and was used to create a device with an efficiency of over 98%.

The team’s findings have been published in the IEEE Open Journal of Power Electronics and IEEE Transactions on Power Electronics.

A power converter is an electrical device for converting electrical energy. It can convert alternating current (AC) into direct current (DC) and vice versa or change the voltage or frequency of a current. Power converters are used in a wide range of technologies, from mobile phones, computers and televisions to renewable energy and electric vehicles.

Existing methods of designing power converters largely rely on complex mathematical models which significantly increase the computational time and complexity of the design process. A well-designed power electronic converter must have high efficiency, small volume, be lightweight and have low cost and low failure rate. Therefore, the main goal of a power converter design method is to identify the best trade-off among these performance indicators.

In their study, the team explored a new design method using a type of AI known as artificial neural networks (ANN), which uses algorithms and computing systems that mimic the interconnected neural networks of the human brain. The ANN was trained on an existing dataset of more than 2,000 designs, so the team were able to select the most appropriate design for their desired efficiency and power density.

The team selected four major components for the ANN-based design, including the power gallium nitrate (GaN) field-effect transistors (FETs), inductors, capacitors, and heat sinks.

The design approach was validated through experimental tests on a GaN-based single-phase inverter that was created using the specified design. The efficiency and power density of the device was well matched to the design and within the range of existing devices, making it technically competitive and commercially viable.

Co-author of the study Dr. Wenlong Ming, Senior Lecturer at Cardiff University and Senior Research Fellow at CSA Catapult, said, “Accurate and fast transient modeling/simulation approaches are essential to efficiently and to rapidly optimize the performance of wide bandgap power electronics systems. We are delighted to work together with CSA Catapult to address this gap.”

Co-author of the study Dr. Ingo Lüdtke, Head of Power Electronics at CSA Catapult, said, “Automated power electronics design optimization enables the full exploitation of wide bandgap power semiconductor advantages when compared to their silicon counterparts. We are excited to be working with Cardiff University in this innovative area.”

More information:
Rajesh Rajamony et al, Artificial Neural Networks-Based Multi-Objective Design Methodology for Wide-Bandgap Power Electronics Converters, IEEE Open Journal of Power Electronics (2022). DOI: 10.1109/OJPEL.2022.3204630

Peng Yang et al, Hybrid Data-Driven Modeling Methodology for Fast and Accurate Transient Simulation of SiC MOSFETs, IEEE Transactions on Power Electronics (2021). DOI: 10.1109/TPEL.2021.3101713

Provided by
Cardiff University

Citation:
AI helps optimize power electronic converters (2022, November 9)
retrieved 9 November 2022
from https://techxplore.com/news/2022-11-ai-optimize-power-electronic.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.

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AI helps optimise power electronic converters
Trade-off between the power electronic performance parameters. Credit: IEEE Open Journal of Power Electronics (2022). DOI: 10.1109/OJPEL.2022.3204630

A new and more efficient way of modeling and designing power electronic converters using artificial intelligence (AI) has been created by a team of experts from Cardiff University and the Compound Semiconductor Applications (CSA) Catapult.

The method has reduced design times for technology by up to 78% compared to traditional approaches and was used to create a device with an efficiency of over 98%.

The team’s findings have been published in the IEEE Open Journal of Power Electronics and IEEE Transactions on Power Electronics.

A power converter is an electrical device for converting electrical energy. It can convert alternating current (AC) into direct current (DC) and vice versa or change the voltage or frequency of a current. Power converters are used in a wide range of technologies, from mobile phones, computers and televisions to renewable energy and electric vehicles.

Existing methods of designing power converters largely rely on complex mathematical models which significantly increase the computational time and complexity of the design process. A well-designed power electronic converter must have high efficiency, small volume, be lightweight and have low cost and low failure rate. Therefore, the main goal of a power converter design method is to identify the best trade-off among these performance indicators.

In their study, the team explored a new design method using a type of AI known as artificial neural networks (ANN), which uses algorithms and computing systems that mimic the interconnected neural networks of the human brain. The ANN was trained on an existing dataset of more than 2,000 designs, so the team were able to select the most appropriate design for their desired efficiency and power density.

The team selected four major components for the ANN-based design, including the power gallium nitrate (GaN) field-effect transistors (FETs), inductors, capacitors, and heat sinks.

The design approach was validated through experimental tests on a GaN-based single-phase inverter that was created using the specified design. The efficiency and power density of the device was well matched to the design and within the range of existing devices, making it technically competitive and commercially viable.

Co-author of the study Dr. Wenlong Ming, Senior Lecturer at Cardiff University and Senior Research Fellow at CSA Catapult, said, “Accurate and fast transient modeling/simulation approaches are essential to efficiently and to rapidly optimize the performance of wide bandgap power electronics systems. We are delighted to work together with CSA Catapult to address this gap.”

Co-author of the study Dr. Ingo Lüdtke, Head of Power Electronics at CSA Catapult, said, “Automated power electronics design optimization enables the full exploitation of wide bandgap power semiconductor advantages when compared to their silicon counterparts. We are excited to be working with Cardiff University in this innovative area.”

More information:
Rajesh Rajamony et al, Artificial Neural Networks-Based Multi-Objective Design Methodology for Wide-Bandgap Power Electronics Converters, IEEE Open Journal of Power Electronics (2022). DOI: 10.1109/OJPEL.2022.3204630

Peng Yang et al, Hybrid Data-Driven Modeling Methodology for Fast and Accurate Transient Simulation of SiC MOSFETs, IEEE Transactions on Power Electronics (2021). DOI: 10.1109/TPEL.2021.3101713

Provided by
Cardiff University

Citation:
AI helps optimize power electronic converters (2022, November 9)
retrieved 9 November 2022
from https://techxplore.com/news/2022-11-ai-optimize-power-electronic.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.
Tags: artificial neural networksdirect currentpower converterpower densitypower electronics
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