2024 International Power Electronics

and Motion Control Conference

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PROGRAM

Tutorial

11.

Artificial Intelligence-assisted Applications in Power Electronics

Speaker(1)	Name	Shuai Zhao
	Title	Assistant Professor
	Affiliation	Aalborg University, Denmark
	Email	szh@energy.aau.dk
Speaker(2)	Name	Yi Zhang
	Title	Assistant Professor
	Affiliation	Aalborg University, Denmark
	Email	yiz@energy.aau.dk
Speaker(3)	Name	Huai Wang
	Title	Professor
	Affiliation	Aalborg University, Denmark
	Email	hwa@energy.aau.dk
Abstract	Artificial intelligence (AI) has been integrated into power electronic systems (PES) since the 1990s, primarily for purposes such as design, intelligent control, diagnostics, and prognostics. Nevertheless, the initial promise of competitive AI-driven solutions has not materialized, and their adoption within the industrial sector has remained limited. Presently, this landscape has undergone a substantial transformation, with the recognition that cutting-edge AI tools hold the potential to confer significant advantages on power electronics. This shift is particularly relevant as PES increasingly evolve into data-intensive systems. The primary objective of this tutorial is to offer a systematic overview of the latest advancements in AI-assisted applications for power electronics. Situated at the intersection of data science and power electronics, this tutorial will start with a structured introduction to AI-assisted data-driven applications for PES. The subsequent part will present several representative case studies, including thermal modeling for temperature prediction, condition monitoring through digital twin technology, parameter estimation utilizing physics-informed machine learning, remaining useful life prediction through information fusion techniques, etc. In conclusion, this tutorial will conclude with a discussion of ongoing initiatives, prospects for novel AI tools, prospects for edge implementation, open-source data/tools, and emerging opportunities within this dynamic and synergistic domain.

12.

Multi-Cell & Multi-Level Power Converters 'From Theory to Practice'

Speaker(1)	Name	Petar J. Grbović
	Title	Univ. Prof. Dr.
	Affiliation	University of Innsbruck
	Email	petar.grbovic@uibk.ac.at
Speaker(2)	Name	Thierry. A. Meynard
	Title	Prof. Dr.
	Affiliation	LAPLACE / ENSEEIHT / INPT
	Email	Thierry.Meynard@laplace.univ-tlse.fr
Speaker(3)	Name	Zoran Miletić
	Title	Dipl. Eng
	Affiliation	Austrian Institute of Technology (AIT)
	Email	zoran.miletic@ait.ac.at
Abstract	Power Electronics and Static Power Converters in general are today part of every segment of our life. Any piece of electric equipment we are using today is somehow based on power electronics and static power converters; home appliance, industrial equipment, renewable energy, IT, automotive, avionic, etc., etc. Conversion efficiency, specific power, power density and the converter cost are today the most critical requirements for new applications. One way to increase the efficiency and reduce cost/size/weight of the converter is to deploy new power semiconductor such as SiC and GaN power switches. In the last decade, we have seen a dramatic progress, particularly in the field of power semiconductors and power converters topologies. Each new generation of power semiconductor introduces a new challenge and issue. Some of the issues such as extreme di/dt and du/dt in combination with the device and the package parasitic inductance and capacitance make almost impossible to fully utilize all advantages of the new WBG (SiC and GaN) power semiconductor devices. Some possible solutions to above mentioned issues, which have been under the spot for more than two decades are “New” topologies such as Multi-Level (Series Interleaved) and Multi-Cell (Parallel Interleaved) Converters. After an introduction to fundamentals of Static Power Converters and Topologies, new WBG power semiconductors and associated di/dt and du/dt issues will be addressed and discussed in the 2nd and 3rd part of the tutorial. The 4th and 5th part of the tutorial will cover theory of Multi-Cell (Parallel Interleaved) and Multi-Level (Series Interleaved) topologies. The advantages, such as significant volume reduction of the converter input and output LC filter and the DC BUS capacitor will be extensively discussed. Moreover, strong impact on the device switching performances including switching loses and the switch over-voltage stress will be addressed too.Series & Parallel Multi-Level Converters will be addressed in the 6th part of the tutorial. Finally, in the concluding part of the tutorial, design guidelines will be addressed. Several design cases will be presented and intensively discussed too.

13.

Computer-aided Accurate Modeling and Design Optimization for Isolated Resonant DC-DC Converters

14.

Power Quality and Operability of Distributed Power Generation Systems: Advanced and Intelligent Control

Speaker(1)	Name	Yongheng YANG
	Title	ZJU100 Professor
	Affiliation	Zhejiang University, China
	Email	yoy@zju.edu.cn
Speaker(2)	Name	Chi-Seng LAM
	Title	Associate Professor
	Affiliation	University of Macau (UM), Macau
	Email	cslam@um.edu.mo
Speaker(3)	Name	Nick PAPANIKOLAOU
	Title	Professor
	Affiliation	Democritus University of Thrace, Greece
	Email	npapanik@ee.duth.gr
Abstract	Power electronics is the key technology on the way towards cleaner and sustainable energy generation, distribution and use. Their applications are expanded to all forms of electric energy systems, i.e., ac – dc – hybrid, grid-tied, multi-connected or standalone, urban or rural, residential or industrial / commercial, (distributed) generation systems. Thanks to the fast-growing power electronics and intelligent control technologies that they incorporate, distributed power generation systems (DPGS) have a catalytic role in the increase of renewable energy share in the Energy Sector. As such, the impressive growth of distributed generation installations, the fast electrification of all transportation means, the evolution of Smart Grid concept and the transformation of the Building Stock into Zero Energy Buildings, are tangible results of the advances. However, modern DPGS also encounters many technical challenges, where maintaining uninterruptible, high power quality supply and smart management services to their users is of importance and complying with the relevant international standards (IEEE Stds 1547-1018, 2030.7-2017, 2030.10-2021 etc.) is of concern. Thus, more advanced, and intelligent control loops are required to meet those operational needs. In this context, advanced power electronics solutions, including Artificial Intelligence (AI), are gaining a lot of interest in the power electronics based DPGS. To this end, the power electronic units become more autonomous in making important decisions even in near real-time scale in the DPGS. Hence, they are transformed into powerful tools in the service of the modern DPGS. With this in mind, the tutorial is proposed for intermediate and advanced audiences, and it is dedicated to tackling the technological challenges of the wide-scale adoption of power electronics-based distributed generation systems. It provides a step-by-step design of the key - power electronics for DPGS considering the stringent standards. The focus is to innovate and improve the power quality and operability by means of advanced control to create more sustainable, grid-friendly, efficient, and reliable DPGS that comply with grid regulations and contribute to reducing the cost of energy, as well as secure and reliable grid operation. The tutorial is intended for intermediate and advanced audiences in the field of power electronics, engineers and researchers, who are looking for advanced solutions to the modern DPGS.

15.

Graph Theory-based Methods for Power Converters and Systems

Speaker(1)	Name	Yunwei (Ryan) Li
	Title	Professor
	Affiliation	University of Alberta
	Email	yunwei.li@ualberta.ca
Speaker(2)	Name	Yuzhuo Li
	Title	PostDoc.
	Affiliation	University of Alberta
	Email	yuzhuo@ualberta.ca
Tutorial title	Graph Theory-based Methods for Power Converters and Systems
Abstract	The integration of power electronics into the modern electrical grid signifies a cornerstone in the ongoing energy transition, facilitating unprecedented advancements in the management and efficiency of energy systems. As the complexity and variety of power converter systems expand, there arises a pressing need for a systematic framework to navigate these advancements. This tutorial addresses this gap by leveraging graph theory to elucidate the intricate relationships among various power converter topologies and systems. Beginning with a comprehensive overview of the power electronics-enabled electrical grid, this tutorial introduces the foundational principles of graph theory and their evolution in the context of power converters and systems. Key concepts such as duality and isomorphism are explored to establish universal topology guidelines, with a special emphasis on voltage-/current-source converters and multiport converters. This includes various recently proposed converter topologies and operations by our group. Additionally, the tutorial delves into graph-based methodologies for deriving topologies and operational strategies for multilevel converters and addressing system-level challenges, such as optimizing electric vehicle (EV) charging networks.
Key words	Systematic research, Graph Theory, Duality and Isomorphism, Multiport Converters, Multilevel Converters, Electric Vehicle
Biography(1)	Dr. Yunwei (Ryan) Li is a professor, University of Alberta Senior Engineering Research Chair, and Interim Chair of the Department of Electrical and Computer Engineering. His research interests include distributed generation, microgrid, renewable energy, high power converters and electric motor drives. Dr. Li is the Vice President for Products of IEEE Power Electronics Society (PELS) 2022-2024. He was the Editor-in-Chief for IEEE Transactions on Power Electronics Letters 2019-2023. Prior to that, he was Associate Editor for IEEE Transactions on Power Electronics, IEEE Transactions on Industrial Electronics, IEEE Transactions on Smart Grid, and IEEE Journal of Emerging and Selected Topics in Power Electronics. Dr. Li served as the general chair of IEEE Energy Conversion Congress of Exposition (ECCE) in 2020, and AdCom Member at Large for PELS 2021-2023. Dr. Li received the Nagamori Foundation Award in 2022 and the Richard M. Bass Outstanding Young Power Electronics Engineer Award from IEEE PELS in 2013. He is recognized as a Highly Cited Researcher by the Clarivate Analytics.
Biography(2)	Yuzhuo Li is currently a Postdoctoral Fellow with the University of Alberta. He received the B.S. and M.S. degrees in control science and engineering from Shandong University, Jinan, China, in 2012 and 2015, respectively, and the Ph.D. degree in energy system from the University of Alberta, Edmonton, Canada, in 2021. His main research interests include intelligent and graph-based systematic power electronics design.

16.

Reliability Challenges and Potential Solutions in Wide-bandgap Device based Motor Drives

Speaker(1)	Name	Xibo Yuan
	Title	Professor
	Affiliation	China University of Mining and Technology
	Email	yuanxibo@ieee.org
Speaker(2)	Name	Wenzhi Zhou
	Title	Research Associate
	Affiliation	University of Bristol, UK
	Email	wenzhi.zhou@bristol.ac.uk
Speaker(3)	Name	Mohamed Diab
	Title	Lecturer
	Affiliation	Loughborough University, UK
	Email	m.diab@lboro.ac.uk
Abstract	The fast-switching speed, higher voltage and higher temperature capabilities of wide-bandgap (WBG) power devices such as SiC and GaN devices have brought in clear opportunities in achieving high-density, higher-efficiency, higher-frequency and highly-integrated motor drives. However, high dv/dt and high switching frequency can cause increased level of motor over-voltage, insulation and bearing degradation and electro-magnetic interference. Under the high dv/dt of WBG motor drives, motor terminals and stator winding neutral will see clear over-voltage with much shorter cables than that under Si IGBT motor drives and the voltage stress will mostly drop on the first several turns of the motor windings close to the terminal or neutral. How the switching speed and switching frequency will affect the winding insulation (e.g., through partial discharge) and motor bearing (e.g., through motor bearing current) will be explained. Experimental test results with SiC/GaN motor drives will be given and the theory behind the experimental observations will be provided with the analysis in both the time and frequency domain. Several potential solutions in addressing the reliability concerns of high-frequency WBG drives will be given, including passive and active filters, waveform shaping through soft-switching and device gate drive, alterative converter topologies, quasi-multilevel modulation, etc. SiC/GaN motor drive examples will be presented to further demonstrate the challenges and potential solutions mentioned above.
Biography(1)	Xibo Yuan obtained his PhD degree from Tsinghua University and is a Professor at the China University of Mining and Technology, China. He has led several research projects in the field of wide-bandgap motor drives and their reliability. He is a Distinguished Lecturer of the IEEE Power Electronics Society and received several prize paper awards from IEEE journals and conferences.
Biography(2)	Wenzhi Zhou received the B.S. degree from Dalian Jiaotong University, Dalian, China, the M.Sc. degree from Zhejiang University, Hangzhou, China, and the Ph.D. degree from the University of Bristol, Bristol, UK, in 2013, 2016, and 2022, respectively, all in electrical engineering.
Biography(3)	Mohamed Diab is a Lecturer in Power Electronics at the Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, UK and works at the Centre for Renewable Energy Systems Technology (CREST). He has several years of experience in academic and industrial research in electrical power engineering. His research focuses on power electronics applications, energy conversion, and electrical machine drives.