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Professor Fred C. Lee Virginia tech, USA |
Title: “Power Electronics Trends – a CPES’s perspective”
Abstract
This
talk is attempted to capture some of the significant development events and
trends in power electronics technologies over the past three, from a CPES’s
perspective. It is evident that new devices and innovative materials will
continue make significant en route to power electronics technologies and applications. Other
drivers are equally important in shaping the future power electronics systems, such as
-
Increasing
electronic load demands for tighter regulations and dynamic responses;
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Increasing
move from customized design to more standardized design;
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System
architecture is moving from centralized to distributed;
-
Circuit
design is moving from discrete approach to integrated approach
-
Increasing
demand for energy efficiency, higher power density, lower cost and short cycle
time.
The
current design practices needs to be revisited to address these seemingly
conflicting constraints. A paradigm shift in power electronics systems and
design practice is eminent.
Biography
of Professor Fred C. Lee
Fred
C. Lee received his B.S. degree in electrical engineering from the National
Cheng Kung University in Taiwan in 1968 and M.S. and Ph.D. degrees in lectrical
engineering from Duke University in 1972 and 1974, respectively. Dr. Lee is a
University Distinguished Professor at Virginia and the Founder and Director of
the Center for Power Electronics Systems (CPES), an engineering research center
consisting of over 87 corporations. The Center’s vision is “to provide
leadership through global collaboration to create electric power processing
systems of the highest value to society”.
Dr. Lee
holds 69 U.S. patents, and has published 240 journal articles and over 590
refereed technical papers. During his tenure at Virginia Tech, Dr. Lee has
supervised to completion 71 PhD and 80 Master students. He served as President
of the IEEE Power Electronics Society (1993-94) and is a recipient of William
E. Newell Power Electronics Award in 1989, the Arthur E. Fury Award for
Leadership and Innovation in1998, the Ernst-Blickle Award for achievement in
the field of power electronics in 2005, and the Distinguished Alumni Award from
National Cheng Kung University in 2006.
Dr. Lee
was Honorary Li Kwoh-Ting Chair Professor, National Cheng Kung University in
2011, honorary Sun Yuen Chuan Chair Professor, National Tsing Hua University,
Taiwan in 2001, and is Honorary Professor at Zhejiang University (1990-),
Shanghai Railroad Technology Institute (1991-), Shanghai University (1991-),
Nanjing Aeronautical and astronautic University (1993-), Tsinghua University
(1997-), Huazhong University of Science and Technology (2000-), Harbin
Institute of Technology (2002-), Beijing Jiao-Tong University (2004-), Shanghai
Jiaotong University (2004-), Hefei Industry Technology University (2009-)
Dr. Lee
is a member of the National Academy of Engineering (2011) and has served as
President of the IEEE Power Electronics Society (1993-94). He has served as a
member of the Board of Directors for Zytec (1987-1997), Artesyn (1997-2004) and
Virginia Tech Intellectual Properties (2007-2009), and Chairman of the Board
for VPT (1993-2009). He currently serves on the Board of Directors for Delta
Power Electronics and the Delta Environment and Education Foundation
Professor Frede Blaabjerg Aalborg, university, Denmark |
Title: Design for
Reliability of Power Electronic Systems
Abstract
Advances in power electronics enable
efficient and flexible processing of electric power in the application of
renewable energy sources, electric vehicles, adjustable-speed drives,
etc. More and more efforts are devoted
to having better power electronic systems in terms of reliability to ensure
high availability, long lifetime, sufficient robustness and low maintenance
cost. However, the reliability predictions
are still dominantly according to outdated models and terms, such as MIL-HDBK-217H
handbook models, mean-time-to-failure (MTTF), and
mean-time-between-failures (MTBF). In
this presentation, a collection of methodologies based on physics-of-failure (PoF)
approach and mission profile analysis are presented to perform
reliability-oriented design of power electronic systems. The corresponding
design procedures and reliability prediction models are provided. Further on, a case study on 10 MW wind power converters
is discussed with emphasis on the reliability critical components IGBTs and
DC-link capacitors. Different aspects of
improving the reliability of the power converters are mapped. Finally, the challenges and opportunities to
achieve more reliable power electronic systems are addressed.
Biography of Professor Frede Blaabjerg (S’86-M’88-SM’97-F’03)
He was employed at ABB-Scandia,
Randers, from 1987-1988. During 1988-1992 he was a PhD. student at Aalborg
University, Denmark, became Assistant Professor in 1992, Associate Professor in
1996 and full professor in power electronics and drives in 1998 the same place.
He has been part-time research programme leader at Research Center Risoe in
wind turbines. In the period of 2006-2010 he was the dean of the faculty of
Engineering, Science and Medicine the same place and became visiting professor
at Zhejiang University, China in 2009.
His research areas are in power
electronics and its applications like wind turbines, PV systems and adjustable
speed drives. Since 2006 he has been Editor in Chief of the IEEE Transactions
on Power Electronics as well as he was Distingueshed lecturer for the IEEE
Power Electronics Society from 2005 to 2007. It is followed up as Distingueshed
lecturer for the IEEE Industry Applications Society from 2010 to 2011.
He received the 1995 Angelos Award for
his contribution in modulation technique and the Annual Teacher prize at
Aalborg University, also 1995. In 1998 he received the Outstanding Young Power
Electronics Engineer Award from the IEEE Power Electronics Society.
He has received twelve IEEE Prize paper
awards and another prize paper award at PELINCEC Poland 2005. He received the
IEEE Power Electronics Society Distingueshed Service Award in 2009 as well as
the EPE-PEMC 2010 Council award.