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Multiobjective Optimization of Medium-Frequency Transformers for Isolated Soft-Switching Converters Using a Genetic Algorithm | IEEE Journals & Magazine | IEEE Xplore

Multiobjective Optimization of Medium-Frequency Transformers for Isolated Soft-Switching Converters Using a Genetic Algorithm


Abstract:

The main challenge of medium-frequency transformers is the number of design parameters, constraints and objectives, and the difficulty of handling them on a particular de...Show More

Abstract:

The main challenge of medium-frequency transformers is the number of design parameters, constraints and objectives, and the difficulty of handling them on a particular design. This paper presents a novel computer-aided optimal design for MF transformers using a multiobjective genetic algorithm, in particular the nondominated sorting genetic algorithm II. The proposed methodology has the aim of reaching the best MF transformer for a given power converter topology, by optimizing transformer efficiency, weight, and also, transformer leakage and magnetizing inductances at the same time. The proposed methodology and the optimal solutions are validated with the design and the development of two 10-kVA/500-V transformers considering two different topologies. Finally, some experimental measurements are presented so as to demonstrate the proposed models and the performance of built transformers.
Published in: IEEE Transactions on Power Electronics ( Volume: 32, Issue: 4, April 2017)
Page(s): 2995 - 3006
Date of Publication: 30 May 2016

ISSN Information:

Author image of Asier Garcia-Bediaga
Power Electronics Area, IK4-Ikerlan Technology Research Center, Mondragon, Spain
Asier Garcia received the B.Sc. degree in electronics from the University of Mondragón, Spain, in 2007, the M.Sc. degree from the electrical, electronics, computer science, hydraulics, and telecommunications engineering school, Toulouse, France, in 2009, and the Ph.D. degree from the Swiss Federal Institute of Technology, Lausanne, Switzerland, in 2014.
Since 2014, he has been with the IK4-Ikerlan Technology Research Ce...Show More
Asier Garcia received the B.Sc. degree in electronics from the University of Mondragón, Spain, in 2007, the M.Sc. degree from the electrical, electronics, computer science, hydraulics, and telecommunications engineering school, Toulouse, France, in 2009, and the Ph.D. degree from the Swiss Federal Institute of Technology, Lausanne, Switzerland, in 2014.
Since 2014, he has been with the IK4-Ikerlan Technology Research Ce...View more
Author image of Irma Villar
Power Electronics Area, IK4-Ikerlan Technology Research Center, Mondragon, Spain
Irma Vilar (M’16) received the B.Sc. and the M.Sc. degrees in electronics from the University of Mondragón, Gipuzkoa, Spain, in 2003 and 2005, respectively, and the Ph.D. degree from the Federal Institute of Technology Lausanne, Lausanne, Switzerland, in 2010.
Since 2009, she has been a Researcher and a Project Manager with the IK4-Ikerlan Technology Research Center, Mondragón, Spain, in the power electronics area in se...Show More
Irma Vilar (M’16) received the B.Sc. and the M.Sc. degrees in electronics from the University of Mondragón, Gipuzkoa, Spain, in 2003 and 2005, respectively, and the Ph.D. degree from the Federal Institute of Technology Lausanne, Lausanne, Switzerland, in 2010.
Since 2009, she has been a Researcher and a Project Manager with the IK4-Ikerlan Technology Research Center, Mondragón, Spain, in the power electronics area in se...View more
Author image of Alejandro Rujas
Power Electronics Area, IK4-Ikerlan Technology Research Center, Mondragon, Spain
Alejandro Rujas received the B.Sc. degree in electronics from the University of Mondragón, Spain, in 2004, and the M.Sc. degree in electrical engineering from the Swiss Federal Institute of Technology, Lausanne, Switzerland, in 2007.
Since 2007, he is with the IK4-Ikerlan Technology Research Center, Mondragón, as a Researcher in power electronics area, and since 2016 has been the Leader of the power converter team. He h...Show More
Alejandro Rujas received the B.Sc. degree in electronics from the University of Mondragón, Spain, in 2004, and the M.Sc. degree in electrical engineering from the Swiss Federal Institute of Technology, Lausanne, Switzerland, in 2007.
Since 2007, he is with the IK4-Ikerlan Technology Research Center, Mondragón, as a Researcher in power electronics area, and since 2016 has been the Leader of the power converter team. He h...View more
Author image of Luis Mir
Power Electronics Area, IK4-Ikerlan Technology Research Center, Mondragon, Spain
Luis Mir received the B.Sc. and the M.Sc. degrees in electronics from the University of Mondragon, Spain, in 2000 and 2002, respectively, and a M.Sc. degree in electrical power engineering with business from the University of Strathclyde, Glasgow, in 2003.
Since 2003, he has been a Researcher and Project Manager with IK4-Ikerlan Technology Research Center, Mondragon, Spain, and since 2016, as the Head of the Department ...Show More
Luis Mir received the B.Sc. and the M.Sc. degrees in electronics from the University of Mondragon, Spain, in 2000 and 2002, respectively, and a M.Sc. degree in electrical power engineering with business from the University of Strathclyde, Glasgow, in 2003.
Since 2003, he has been a Researcher and Project Manager with IK4-Ikerlan Technology Research Center, Mondragon, Spain, and since 2016, as the Head of the Department ...View more
Author image of Alfred Rufer
Industrial Electronics Laboratory, Swiss Federal Institute of Technology Lausanne, Lausanne, Switzerland
Alfred Rufer (A’95–SM’01–F’06) received the M.Sc. degree from the Swiss Federal Institute of Technology, Lausanne, Switzerland, in 1976.
In 1978, he joined ABB, Turgi, Switzerland, where he was involved in the fields of power electronics and control, such as high-power variable frequency converters for drives, and where he was a Group Leader involved with power electronic development beginning in 1985. In 1993, he becam...Show More
Alfred Rufer (A’95–SM’01–F’06) received the M.Sc. degree from the Swiss Federal Institute of Technology, Lausanne, Switzerland, in 1976.
In 1978, he joined ABB, Turgi, Switzerland, where he was involved in the fields of power electronics and control, such as high-power variable frequency converters for drives, and where he was a Group Leader involved with power electronic development beginning in 1985. In 1993, he becam...View more

I. Introduction

Medium-frequency (MF) electronic transformers open up new possibilities for ac–ac and dc–dc conversion systems, characterized by high efficiency, small volume, low weight, and cost effective features. Thus, there is an obvious interest in developing this type of systems in various applications where space and weight restrictions are critical, like railway traction [1]– [8], offshore wind power [9], or electrical vehicles [10]–[12] . The railway electrical traction sector is currently the most important one, as MF transformers could be potentially used not only to replace on-board low-frequency (LF) bulky transformers in ac trains (50 or 16 2/3 Hz), but also as the key element of on-board dc–dc conversion systems. In this last application, transformer-based converters can be an interesting alternative to conventional topologies due to their high voltage transformation ratio and efficiency.

Author image of Asier Garcia-Bediaga
Power Electronics Area, IK4-Ikerlan Technology Research Center, Mondragon, Spain
Asier Garcia received the B.Sc. degree in electronics from the University of Mondragón, Spain, in 2007, the M.Sc. degree from the electrical, electronics, computer science, hydraulics, and telecommunications engineering school, Toulouse, France, in 2009, and the Ph.D. degree from the Swiss Federal Institute of Technology, Lausanne, Switzerland, in 2014.
Since 2014, he has been with the IK4-Ikerlan Technology Research Center, Mondragón, as a Researcher in power electronics area. His research interests include wide bandgap power electronics devices and the design, control and optimization of hard and soft-switching power converters for railway, storage systems, and inductive power transfer applications.
Asier Garcia received the B.Sc. degree in electronics from the University of Mondragón, Spain, in 2007, the M.Sc. degree from the electrical, electronics, computer science, hydraulics, and telecommunications engineering school, Toulouse, France, in 2009, and the Ph.D. degree from the Swiss Federal Institute of Technology, Lausanne, Switzerland, in 2014.
Since 2014, he has been with the IK4-Ikerlan Technology Research Center, Mondragón, as a Researcher in power electronics area. His research interests include wide bandgap power electronics devices and the design, control and optimization of hard and soft-switching power converters for railway, storage systems, and inductive power transfer applications.View more
Author image of Irma Villar
Power Electronics Area, IK4-Ikerlan Technology Research Center, Mondragon, Spain
Irma Vilar (M’16) received the B.Sc. and the M.Sc. degrees in electronics from the University of Mondragón, Gipuzkoa, Spain, in 2003 and 2005, respectively, and the Ph.D. degree from the Federal Institute of Technology Lausanne, Lausanne, Switzerland, in 2010.
Since 2009, she has been a Researcher and a Project Manager with the IK4-Ikerlan Technology Research Center, Mondragón, Spain, in the power electronics area in several industrial and research projects related to power conversion systems for railway traction, electric vehicle, household applications, and aeronautics. Her fields of experience are the design of electromagnetic devices like transformers, inductors and inductive transfer, and heating systems.
Irma Vilar (M’16) received the B.Sc. and the M.Sc. degrees in electronics from the University of Mondragón, Gipuzkoa, Spain, in 2003 and 2005, respectively, and the Ph.D. degree from the Federal Institute of Technology Lausanne, Lausanne, Switzerland, in 2010.
Since 2009, she has been a Researcher and a Project Manager with the IK4-Ikerlan Technology Research Center, Mondragón, Spain, in the power electronics area in several industrial and research projects related to power conversion systems for railway traction, electric vehicle, household applications, and aeronautics. Her fields of experience are the design of electromagnetic devices like transformers, inductors and inductive transfer, and heating systems.View more
Author image of Alejandro Rujas
Power Electronics Area, IK4-Ikerlan Technology Research Center, Mondragon, Spain
Alejandro Rujas received the B.Sc. degree in electronics from the University of Mondragón, Spain, in 2004, and the M.Sc. degree in electrical engineering from the Swiss Federal Institute of Technology, Lausanne, Switzerland, in 2007.
Since 2007, he is with the IK4-Ikerlan Technology Research Center, Mondragón, as a Researcher in power electronics area, and since 2016 has been the Leader of the power converter team. He has been involved in several industrial and research projects related the design and control of power electronics converters for electrical traction, renewable energy, aeronautics and energy storage applications.
Alejandro Rujas received the B.Sc. degree in electronics from the University of Mondragón, Spain, in 2004, and the M.Sc. degree in electrical engineering from the Swiss Federal Institute of Technology, Lausanne, Switzerland, in 2007.
Since 2007, he is with the IK4-Ikerlan Technology Research Center, Mondragón, as a Researcher in power electronics area, and since 2016 has been the Leader of the power converter team. He has been involved in several industrial and research projects related the design and control of power electronics converters for electrical traction, renewable energy, aeronautics and energy storage applications.View more
Author image of Luis Mir
Power Electronics Area, IK4-Ikerlan Technology Research Center, Mondragon, Spain
Luis Mir received the B.Sc. and the M.Sc. degrees in electronics from the University of Mondragon, Spain, in 2000 and 2002, respectively, and a M.Sc. degree in electrical power engineering with business from the University of Strathclyde, Glasgow, in 2003.
Since 2003, he has been a Researcher and Project Manager with IK4-Ikerlan Technology Research Center, Mondragon, Spain, and since 2016, as the Head of the Department in Power Electronics Area. He has been involved in several industrial and research projects related the design and control of power electronics converters for railway traction, electric vehicle, household applications, and electrical energy storage applications.
Luis Mir received the B.Sc. and the M.Sc. degrees in electronics from the University of Mondragon, Spain, in 2000 and 2002, respectively, and a M.Sc. degree in electrical power engineering with business from the University of Strathclyde, Glasgow, in 2003.
Since 2003, he has been a Researcher and Project Manager with IK4-Ikerlan Technology Research Center, Mondragon, Spain, and since 2016, as the Head of the Department in Power Electronics Area. He has been involved in several industrial and research projects related the design and control of power electronics converters for railway traction, electric vehicle, household applications, and electrical energy storage applications.View more
Author image of Alfred Rufer
Industrial Electronics Laboratory, Swiss Federal Institute of Technology Lausanne, Lausanne, Switzerland
Alfred Rufer (A’95–SM’01–F’06) received the M.Sc. degree from the Swiss Federal Institute of Technology, Lausanne, Switzerland, in 1976.
In 1978, he joined ABB, Turgi, Switzerland, where he was involved in the fields of power electronics and control, such as high-power variable frequency converters for drives, and where he was a Group Leader involved with power electronic development beginning in 1985. In 1993, he became an Assistant Professor at EPFL, where, since 1996, he has been a Full Professor and the Head of the Industrial Electronics Laboratory. He has authored or coauthored several publications on power electronics and applications, such as for multilevel converters or for different energy-storage systems. He is the holder of several patents.
Alfred Rufer (A’95–SM’01–F’06) received the M.Sc. degree from the Swiss Federal Institute of Technology, Lausanne, Switzerland, in 1976.
In 1978, he joined ABB, Turgi, Switzerland, where he was involved in the fields of power electronics and control, such as high-power variable frequency converters for drives, and where he was a Group Leader involved with power electronic development beginning in 1985. In 1993, he became an Assistant Professor at EPFL, where, since 1996, he has been a Full Professor and the Head of the Industrial Electronics Laboratory. He has authored or coauthored several publications on power electronics and applications, such as for multilevel converters or for different energy-storage systems. He is the holder of several patents.View more

References

References is not available for this document.