Tutorial Proposal Form
1.
Title of Tutorial
Dynamic Modeling and Control of Grid-Connected Renewable Energy Conversion Systems
2.
Abstract (500 word limit, if the tutorial is accepted, this abstract will be published in the conference web
page, program, and proceedings)
In recent years, there has been a huge increase in the global demand for energy as a result of not only industrial
development, but population growth as well. Consequently, the rise in consumption of traditional fossil fuels
has led to many serious problems such as energy shortage, pollution, global warming, the shortfall of traditional
fossil energy sources, and instability of energy. These factors are driving the development of renewable energy
technologies, which are considered an essential part of a well-balanced energy portfolio. Wind and solar power
sources are thought to be the most promising alternative energy in the near future.
As the contribution of renewable energy to the power grid increases, serious concern about its influence on the
dynamic behavior of the power system has also increased resulting in the power system operators revising the
grid codes in several countries such that these alternative energy sources have an operational behavior more
similar to that of conventional generation capacity, and more responsibility in network. Furthermore, significant
improvement has been achieved in the design and implementation of robust energy conversion systems that
efficiently transform wind and solar energies.
This objective of this tutorial is to provide comprehensive review of the crucial aspects involved in the design
and control of the most emerging grid-connected renewable energy sources, wind energy and photovoltaics,
which by means of power electronics are changing character from being a minor energy source to be acting as a
major power source in the energy system. It will cover the challenges and methods of dynamic modeling and
control of single renewable energy generators and whole renewable energy plants (wind power plants, large PV
arrays). Technology development, power converter technologies, control of the different systems both singlephase and three-phase, system integration, synchronization methods to the grid, grid codes and how to operate
the renewable energy conversion systems under different grid conditions will also be discussed. Finally, future
research opportunities will be presented.
3.
Outline of the Tutorial (Outline would only define the topics and the subtopics that would be covered. No
detailed descriptions should be included in the proposal)
The outline of the tutorial is as follows:
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Photovoltaic Energy Conversion Systems
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Introduction
• Solar energy and characteristics of photovoltaic
• Functions of power electronics circuits in PV systems
• Basic circuit topologies of solar inverters
High Power inverters for PV systems
• Grid-connected PV system configurations
• Multilevel inverter-based PV systems
• Current source inverter-based PV systems
Microinverters for PV applications
• Microconverter and microinverter
• Typical challenges with microinverter
• Microinverter circuit examples
Control of Grid-Connected PV Systems
• Power curves and MPPT methods of PV systems
• Droop control in a grid tied inverters
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Wind Energy Conversion Systems
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Introduction
Generator systems for wind turbines- Dynamic Modeling and Control
• Review of wind turbine technology: four basic types
• Modeling framework of wind turbine generators
 Fixed-speed wind turbines
 Variable-speed wind turbines
Control of wind turbines
• Active stall wind turbine with cage rotor induction generators
• Variable pitch angle control with doubly-fed generators
• Full rated power electronic interface wind turbine systems
Wind power plant aggregation
• Differences between a wind power plant and a conventional power plant
• Wind power plant equivalent representation
• Electrical topologies of wind farms based on different wind turbines
• Reactive power limits of wind turbine generators
Integration of wind turbines into power systems
• Requirements of wind turbine grid integration
• Low-voltage ride-through of wind turbines
• Short-Circuit Contribution of wind power plants
• Inertial and frequency response of wind power plants
Hardware-in-the-loop based test platform for renewable energy systems
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• Efficiency and synchronization issues of PV conditioning systems
• Low voltage ride through PV systems
Ancillary functions of solar inverters
• Islanded mode vs grid connected operation
• Reactive power vs. inverter capability
• Harmonics and reactive power compensation
Modeling methods of power electronics devices and circuits
• State space vs. modified nodal analysis
• Modeling platform: CPU vs. FPGA
Hardware-in-the-loop
• Control hardware-in-the-loop
• System hardware-in-the-loop
• Power hardware-in-the-loop
Testbed Example
• Power network
• Communication network
• Case study examples
Lead Instructor (Name / Affiliation & contact information)
Longya Xu (xu.12@osu.edu)
Center of High Performance Power Electronics (CHPPE)
Electrical and Computer Engineering Department, The Ohio State University
Columbus, OH 43210, USA
5. Other Instructor (Name / Affiliation & contact information)
Frede Blaabjerg (fbl@et.aau.dk)
Center of Reliable Power Electronics (CORPE)
Department of Energy Technology, Aalborg University
Pontoppidanstraede 101, DK-9220 Aalborg, Denmark
Edward Muljadi (eduard.Muljadi@nrel.gov)
National Renewable Energy Laboratory
15013 Denver West Parkway
Golden CO 80401-3393, USA
Jin Wang (wang.1248@osu.edu)
Center of High Performance Power Electronics (CHPPE)
Electrical and Computer Engineering Department, The Ohio State University
Columbus, OH 43210, USA
Yazan Alsmadi (Alsmadi.1@osu.edu)
Center of High Performance Power Electronics (CHPPE)
Electrical and Computer Engineering Department, The Ohio State University
Columbus, OH 43210, USA
6. Instructor Bios: ~150 words each (Please provide a brief biography of each instructor, describing the
qualifications for presenting the proposed tutorial, including the work and publications that are most
relevant to the proposal)
Longya Xu (S’89–M’90–SM’93–F’04) received the M.S. and Ph.D. degrees in electrical engineering from the
University of Wisconsin, Madison, WI, USA, in 1986 and 1990, respectively. In 1990, he joined the Department
of Electrical Engineering, The Ohio State University, Columbus, OH, USA, where he is currently a Professor. He
has served as a consultant to many industrial companies, including Raytheon Company, Cambridge, MA, USA;
Boeing, Chicago, IL, USA; Honeywell, Morristown, NJ, USA; GE Aviation, Cincinnati, OH, USA; U.S. Wind
Power Company; General Motors; Ford; and Unique Mobility Inc., Longmont, CO, USA, for various industrial
concerns. He is the Founding Director of the newly established Center for High Performance Power Electronics
(CHPPE), The Ohio State University. His research and teaching interests include dynamics and optimized design
of special electrical machines and power converters for variable-speed systems, applications of advanced control
theory and digital signal processor for motion control, and distributed power systems in super-high-speed
operation. For 20 years, he has conducted many research projects on electrical and hybrid electrical vehicles and
variable-speed constant-frequency wind power generation systems. Dr. Xu received the First Prize Paper Award
from the IEEE Industry Applications Society (IAS) Industrial Drives Committee in 1990; the Research Initiation
Award from the National Science Foundation for wind power generation in 1991; the Lumley Research Award
for his outstanding research accomplishments from the College of Engineering, The Ohio State University, in
1995, 1999, and 2004; the IEEE IAS Transactions Paper Award, First Place, in 2013; and the IEEE IAS
Outstanding Achievement Award in 2014. He has served as the Chairman of the IEEE IAS Electric Machines
Committee and an Associate Editor of the IEEE TRANSACTIONS ON POWER ELECTRONICS in the past
several years. During 2009–2012, he also served on the IEEE IAS Executive Board.
Frede Blaabjerg (F’03) is currently a Professor with the Department of Energy Technology and the Director of
Center of Reliable Power Electronics (CORPE), Aalborg University, Denmark. He has intensive research work
on power electronics and its applications in motor drives, wind turbines, PV systems, harmonics, and the
reliability of power electronic systems. He has held more than 300 lectures national and international, most of
them in the last decade are invited and as keynotes at conferences, covering various topics on power electronics,
including the reliability. He was a Distinguished Lecturer for the IEEE Power Electronics Society from 2005 to
2007 and for the IEEE Industry Applications Society from 2010 to 2011. He has contributed more than 800
journal and conference papers, many of which in the last four years are relevant to the reliability of power
electronic components, converters and systems. Dr. Blaabjerg received the IEEE William E. Newell Power
Electronics Award in 2014, the IEEE PELS Distinguished Service Award in 2009, the Outstanding Young Power
Electronics Engineer Award in 1998, and 15 IEEE Prize Paper Awards. He served the Editor-in-Chief of the
IEEE Transactions on Power Electronics from 2006 to 2012.
Eduard Muljadi (M’82, SM’94, F’10) received his Ph.D. in electrical engineering from the University of
Wisconsin at Madison. From 1988 to 1992, he taught at California State University at Fresno. In June 1992, he
joined NREL. His current research interests are in the fields of electric machines, power electronics, and power
systems in general with an emphasis on renewable energy applications. He is member of Eta Kappa Nu and
Sigma Xi, a Fellow of the Institute of Electrical and Electronics Engineers (IEEE), and an editor of the IEEE
Transactions on Energy Conversion. He is involved in the activities of the IEEE Industry Application Society
(IAS), Power Electronics Society, and Power and Energy Society (PES). He is currently a member of various
committees of the IAS, and a member of the Working Group on Renewable Technologies and the Task Force on
Dynamic Performance of Wind Power Generation, both of the PES. He holds two patents in power conversion
for renewable energy.
Jin Wang (S’02–M’05) Jin Wang received a B.S. degree from Xi’an Jiaotong University, in 1998, an M.S.
degree from Wuhan University, in 2001, and a Ph.D. from Michigan State University, East Lansing, in 2005, all
in electrical engineering. From Sept., 2005 to Aug. 2007, he worked at the Ford Motor Company as a Core
Power Electronics Engineer and contributed to the traction drive design of the Ford Fusion Hybrid. Since Sept.
2007, he has been an Assistant Professor in the Department of Electrical and Computer Engineering at The Ohio
State University in Columbus, Ohio. His teaching position is co-sponsored by American Electric Power,
Duke/Synergy, and FirstEnergy. His research interests include high-voltage and high-power converter/inverters,
integration of renewable energy sources, and electrification of transportation. Dr. Wang received multiple
teaching and research awards including the IEEE Power Electronics Society Richard M. Bass Young Engineer
Award and the National Science Foundation’s CAREER Award, both in 2011; Ralph L. Boyer Award for
Excellence in Undergraduate Teaching Innovation from the College of Engineering at The Ohio State University
in 2012, and the Lumley Research Award of the College of Engineering at The Ohio State University in 2013.
Dr. Wang has over 90 peer-reviewed journal and conference publications and three patents. Dr. Wang had been
an Associate Editor for IEEE Transactions on Industry Applications from 2008 to 2014. He initiated and served
as the General Chair for the 1st IEEE Workshop on Wide Bandgap Power Devices and Applications in 2013.
Currently, Dr. Wang serves as the General Chair for the IEEE Future Energy Challenge 2016, the tutorial chair
for IEEE Applied Power Electronics Conference 2015, and Associate Editor for IEEE Transactions on Power
Electronics and IEEE Journal of Emerging and Selected Topics in Power Electronics (J-ESTPE).
Yazan M. Alsmadi (S’07) received the B.S. degree (Summa Cum Laude) in electrical power engineering from
Yarmouk University, Jordan, in 2010. He is currently working toward the Ph.D. degree in electrical and
computer engineering at The Ohio State University (OSU), Columbus, OH, USA. His current research interests
include integration of renewable energy resources into electric power systems, advanced control theory of
distributed power and variable speed systems and development of power electronics systems for renewable
energy applications. Mr. Alsmadi is the recipient of the 2014 Presidential Fellowship, the most competitive and
prestigious scholarly recognition provided by The Ohio State University Graduate School. He also received the
Best Poster Presentation Award at the IEEE Energy Conversion Congress & Expo (ECCE 2014), the Distinguish
Service Award at the 2012 & 2013 IEEE Columbus Spring Awards Banquets and the Yarmouk University
Presidential Award for academic distinction. He served as a president of the IEEE Graduate Student Body at The
Ohio State University (GSB) which is the first IEEE graduate student body worldwide.