IEEE Toronto Section


Archive for the ‘Power & Energy’ Category

Recent Advances In Direct Torque and Flux Control of IPMSM Drives

Wednesday, July 26th, 2017

Friday August 11, 2017 at 10:00 a.m. IEEE Toronto’s Power & Energy Chapter is honoured to invite you to a seminar by professor M. Nasir Uddin, Senior IEEE member and Professor at Lakehead University, “Recent Advances In Direct Torque and Flux Control of IPMSM Drives”.

Day & Time: Friday August 11, 2017
10:00 a.m. – 11:30 a.m.

Speaker: M. Nasir Uddin
Senior IEEE member
Professor at Lakehead University

Location: Conference Room
147 Dalhousie St, Toronto, M5B 2R2

Contact: Omid Alizadeh

Organizers: IEEE Toronto Power & Energy Chapter

Abstract: With the advancements in magnetic materials and semiconductor technology, interior permanent magnet synchronous motor (IPMSM) is becoming more and more popular in industrial applications due to its high energy density, high power factor, low noise and high efficiency as compared to conventional AC motors. Conventional field oriented vector control (VC) techniques have been widely used for high performance motor drives for many years. As an alternative to VC scheme recently direct torque and flux control (DTFC) technique is developed which is faster and simpler than that of the VC scheme as DTFC doesn’t need any coordinate transformation, pulse width modulation and current regulators. The DTFC scheme utilizes hysteresis band comparators for both torque and flux controls. Both torque and flux are controlled simultaneously by the selection of appropriate voltage vectors from the inverter. However, conventional six-sector based DTFC suffers from high torque ripples due to discrete nature of control system and limited voltage vector selection from the inverter. Control techniques have been developed for hysteresis controllers to minimize the torque ripples but the six sectors still limits that improvement. Furthermore, in a conventional DTFC the reference air-gap flux is assumed constant at the rated value to make the control task easier. This produces erroneous results for high performance drives as the air-gap flux changes with the operating conditions and system disturbances. Moreover, if the reference air-gap flux is maintained constant, it is not possible to optimize the efficiency of the drive.

Therefore, this talk presents a novel eighteen-sector based DTFC scheme to achieve high dynamic performance with reduced torque ripples as compared to the conventional 6-sector based DTFC. In addition, a model based loss minimization algorithm is integrated with the proposed DTFC scheme in order to optimize the efficiency along with high dynamic performance. Eighteen sectors are developed to overcome the unbalanced voltage vector selection of conventional six-sector based system that minimizes the torque ripples. Further, a nonlinear controller with virtual torque and flux controls is also developed for IPMSM drive to minimize the drive torque ripples. The complete IPMSM drives incorporating the developed control techniques are successfully implemented in real-time using digital signal processor (DSP) board-DS1104 for laboratory 5-hp motor. The effectiveness of the proposed control techniques are verified in both simulation and experiment at different operating conditions. It is found that the nonlinear controller based IPMSM drive provides the best performance in terms of torque ripples among all the DTFC schemes. The results show that the proposed nonlinear/18-sector based DTFC scheme would have the potentiality to apply for real-time industrial drives.

Biography: M. Nasir Uddin received the B.Sc. and M. Sc. degrees both in electrical & electronic engineering from Bangladesh University of Engineering and Technology (BUET), Dhaka, Bangladesh, and the Ph.D. degree in electrical engineering from Memorial University of Newfoundland (MUN), Canada in 1993, 1996, and 2000, respectively.

He has been serving as a Professor in the Department of Electrical Engineering, Lakehead University (LU), Thunder Bay, ON, Canada since August 2001. He also served as a visiting Prof. at Univ. of Malaya (2013, 2012, 2011), Tokyo University of Science (2010), Japan and North South University (2006), Dhaka, Bangladesh. Previously, he was an Assistant Professor in the Department of Electrical and Computer Engineering, University of South Alabama, USA from January 2001 to May 2001, an Assistant Professor from 1996 to 1997 and a lecturer from 1994 to 1996 at BUET. He possesses more than 21 years of teaching experience and has authored/coauthored over 200 papers in international journals (39 in IEEE Transactions) and conferences.

Prof. Uddin is a registered professional engineer in the province of Ontario, Canada. Currently, he is serving as an Executive Board Member of IEEE Industry Applications Society (IAS) and Chair of IEEE-IAS-Manufacturing Systems Development and Applications Department. He also served as one of the Technical Program Committee Chairs for IEEE Energy Conversion Congress and Expo (ECCE) 2015 at Montreal, Canada. He was the Technical Committee Chair for the IEEE-IAS [Industrial Automation and Control Committee (IACC)] Annual Meetings in 2011 (Orlando) and 2012 (Las Vegas). He served as Papers Review Chair (2009–2010 and 2013–2014) of the IEEE Transactions on Industry Applications (IACC). Earlier he served IEEE IAS IACC for 9 years in different capacities. Due to his outstanding contributions IEEE IAS IACC recognized him with IEEE IAS Service Award 2015. He also received LU Distinguished Researcher Award 2010. He was the recipient of several Prize Paper Awards from IEEE IAS IACC and both 2004 Contributions to Research and Contributions to Teaching Awards from LU. His research interests include power electronics, renewable energy, motor drives, and intelligent controller applications.

Factory Tour of Northern Transformer In Vaughan

Wednesday, May 17th, 2017

Friday June 30, 2017 at 2:00 p.m. IEEE Toronto is proud to present a facility tour of Northern Transformer in Vaughan.

The IEEE Toronto Industry Relations Committee and Power & Energy Chapter would like to thank Northern Transformer for hosting this very successful tour and their amazing hospitality.

Day & Time: Friday June 30, 2017
2:00 p.m. – 4:00 p.m.

Location: Northern Transformer
245 McNaughton Rd. E.
Maple, Ontario
Canada L6A 4P5


Contact: Hugo Sanchez

Organizers: IEEE Toronto Industry Relations Committee, Power & Energy Chapter
Co-sponsored by Hugo Sanchez

Abstract: Northern Transformer, founded in Concord, Ontario in 1981, is a North American manufacturer of liquid filled transformers of the highest quality and reliability serving the North American market. Northern Transformer’s primary focus is the design and manufacture of liquid filled Power Transformers, Grounding Transformers and Specialty Transformers ranging from 500kVA to 115MVA with a maximum primary voltage of 160kV (650 BIL).

Attendees are encouraged to bring their own safety shoes and glasses to provide themselves with an additional layer of safety. However, the safety shoes and glasses are not mandatory to attend this tour.

Pictures from Event:

Smart Pricing for Ontario Electricity

Friday, September 23rd, 2016

Wednesday October 19, 2016 at 6:00 p.m. Paul Acchione, Management Consultant at Market Intelligence & Data Analysis Corporation, will be presenting “Smart Pricing for Ontario Electricity”.

Speaker: Paul Acchione
Management Consultant, Market Intelligence & Data Analysis Corporation
Past President & Chair Of the Ontario Society of Professional Engineers (OSPE)
Member of ASME, ANS, IEEE, ISA, Fellow of Canadian Academy of Engineering

Day & Time: Wednesday, October 19, 2016
6:00 p.m. – 7:00 p.m.

Location: BA 4287
40 St George Street, Toronto, Ontario


Abstract: Join us in listening to Paul Acchione speak on smart pricing for Ontario electricity. Paul will discuss how Ontario’s clean electricity can be priced in a smarter way to make Ontario businesses more competitive and help them to reduce carbon dioxide emissions by displacing their fossil fuel consumption. Some of the discussion topics include:
What is the Problem
What Can We Do About It?
What Does a Smart Pricing Plan Need to Do?
OSPE’s Smart Electricity Price Plan
Why Should the Smart Pricing Plan be Voluntary?

Biography: Paul has a B.A.Sc. and M.Eng. degree in Mechanical Engineering from the University of Toronto. Paul is a licensed professional engineer in Ontario and is a member of ASME, ANS, IEEE and ISA and a fellow of the Canadian Academy of Engineering. Paul has over 44 years of engineering and management experience in the power generation industry. He worked for 31 years with Ontario Power Generation (OPG) and its predecessor companies. Paul was the 2013-14 President and Chair of the Ontario Society of Professional Engineers (OSPE) and is a volunteer with OSPE’s Energy Task Force. Paul is a Management Consultant at Market Intelligence & Data Analysis Corporation.

Advanced Technologies in Power System and Power Electronics

Sunday, August 30th, 2015

September 18, 2015 at 9:00 a.m (EDT) Toronto IEEE IAS&PELS joint Chapter and Power System Chapter along with Ryerson’s Faculty of Engineering and Architectural Science invite you to join us for seminar discussions related to Power Electronics and Power System. For registration please contact Marjan at

Speakers: Many – See Below

Day & Time: Friday, September 18th, 2015
9:00 AM to 2:00 PM (EDT)

Location: 50 Carlton St., Toronto, ON
Ryerson University
Click here for a Map

Meeting URL:

Organizers: IEEE IAS&PELS Joint Chapter, Power System Chapter, Ryerson Faculty of Engineering and Architectural Science

Registration: For registration please contact Marjan at

Seminar Agenda:
The seminar agenda is as follows:
1) 8:30AM Registration
2) 9:00AM Welcome
3) 9:20AM Presentation I – by Dr. Bin Wu
4) 10:00AM Presentation II – by Dr. Yunwei Li
5) 10:40AM Coffee time and Break
6) 11:20AM Presentation III – by Dr. Samir Kouro
7) 12:00PM Light lunch
8) 12:30PM Presentation IV – by Dr. You Zhou
9) 1:20PM Presentation V – by Dr. Wuhua Li
10) 2:00PM Lab tours – LEDAR and CUE labs

Presentation I by Dr. Bin Wu

Power Engineering Research at Ryerson University

The Power Engineering (PE) Group at Ryerson University is one of the leading research groups in a Canadian university in the field of high-power converters, medium voltage (MV) drives, renewable energy systems, and power systems. The Ryerson PE Group has a long-term successful research collaborations with Canadian industry, including Rockwell Automation Canada, Honeywell Aerospace Canada, Toronto Hydro Corporation, and Hydro One Incorporated.

In this talk, our research facilities will be introduced, which include the Laboratory for Electric Drive Applications and Research (LEDAR) and research laboratories in Centre for Urban Energy (CUE). A variety of industrial research projects will be discussed, including high-power (megawatt) converters for MV drives, wind and PV energy conversion systems, electric vehicle fast chargers and charging stations, and battery energy management systems. The talk ends with the research trends and directions in the area of MV drives.

Bin Wu received his Ph.D. degree in electrical and computer engineering from the University of Toronto, Canada in 1993. He joined Ryerson University in 1993, where he is currently a Professor and Senior NSERC/Rockwell Automation Industrial Research Chair in Power Electronics and Electric Drives. Dr. Wu has published more than 300 technical papers, authored/coauthored two Wiley-IEEE Press books, and holds more than 25 granted/pending US/European patents in the area of power conversion, medium voltage drives, and renewable energy systems.
Dr. Wu received the Gold Medal of the Governor General of Canada in 1993, Premier’s Research Excellence Award in 2001, NSERC Synergy Award for Innovation in 2002, Ryerson Distinguished Scholar Award in 2003, YSGS Outstanding Contribution to Graduate Education Award, and Professional Engineers Ontario (PEO) Engineering Excellence Medal in 2014. He is a fellow of Institute of Electrical and Electronics Engineers (IEEE), Engineering Institute of Canada (EIC), and Canadian Academy of Engineering (CAE).
Dr. Bin Wu
Professor, Department of Electrical and Computer Engineering, Ryerson University, Canada

Presentation II by Dr. Yunwei Li

Virtual Impedance based Grid Interfacing Converter Control for Active Distribution System Power Quality Improvement

With today’s increasing concerns on energy costs, energy security and greenhouse gas emissions, more and more renewable energy sources is being integrated into the power distribution system through distributed generation (DG). For example, photovoltaic (PV) power production has been doubling every two years, increasing by an average of 48% each year since 2002. At the same time, the increased penetration of nonlinear loads may introduce power quality issues to the distribution power system. Such a system with the presence of many power electronics interfaced DG and loads can be considered as an active distribution system, where the power electronics interfaces can actively participated in the system operation and control with improved efficiency, reliability and power quality. This talk focuses on the distribution system harmonic control through the DG-grid interfacing converters. The compensation strategies are developed using the virtual impedance control concept.

Dr. Yunwei (Ryan) Li is currently a Professor with the Department of Electrical and Computer Engineering, University of Alberta, Canada. Dr. Li received the Ph.D. degree from Nanyang Technological University, Singapore. In 2005, Dr. Li was a Visiting Scholar with the Aalborg University, Denmark. From 2006 to 2007, he was a Postdoctoral Research Fellow at Ryerson University, Canada. In 2007, he also worked at Rockwell Automation Canada. His research interests include control and PWM for power converters in distributed generation, microgrid, renewable energy, electric motor drives, and custom power devices. Dr. Li has published over 120 papers in these areas.
Dr. Li is a senior member of IEEE, a Professional Engineer with Alberta Canada. He serves as an Associate Editor for IEEE Transactions on Power Electronics, IEEE Transactions on Industrial Electronics, and IEEE Journal of Emerging and Selected Topics in Power Electronics. Dr. Li received the 2013 Richard M. Bass Outstanding Young Power Electronics Engineer Award from IEEE Power Electronics Society.
Dr. Yunwei (Ryan) Li
Professor, Department of Electrical and Computer Engineering, University of Alberta, Canada

Presentation III by Dr. Samir Kouro

Research on Photovoltaic Energy Conversion Systems at UTFSM

The north of Chile has the world’s most favorable resources for solar energy conversion. Nevertheless, particular conditions of the dessert such as high altitude, high temperature fluctuations, lack of water and dust are challenges for the development of the solar industry. Two research centers of excellence: the Solar Energy Research Center (SERC) and the Advanced Center for Electrical and Electronic Engineering (AC3E) are addressing these challenges. The Power Electronics Research Group of the Technical University Federico Santa Maria (UTFSM) leads these efforts in both centers, from the power electronics perspective. In this presentation some of the recent research and development projects on photovoltaic energy conversion systems will be introduced, including: soiling effects on energy yield, sub-module PV converters, photovoltaic energy in mining applications, multilevel converters for grid connected PV systems and predictive control of PV inverters.

Dr. Samir Kouro received the M.Sc. and Ph.D. degrees in electronics engineering from the Universidad Tecnica Federico Santa Maria (UTFSM), Valparaíso, Chile, in 2004 and 2008, respectively. From 2009 to 2011 he was a Postdoctoral Fellow in the Department of Electrical and Computer Engineering, Ryerson University, Toronto, Canada. Since 2011 he has been with UTFSM where he currently is associate professor. Dr. Kouro has directed 6 Chilean National Fund projects (Fondecyt), is founding member and Principal Investigator of the Solar Energy Research Center (SERC-Chile) one of the national priority areas centers of excellence of Chile, and founding member and Titular Researcher of the Advanced Center of Electrical and Electronics Engineering (AC3E), one of the technology transfers centers of excellence in Chile. He has coauthored one book, four book chapters and over 100 refereed journal and conference papers. He has served as Guest Editor of a Special Section in the IEEE Transactions on Industrial Electronics (2013-2014) and one in the IEEE Transactions on Power Electronics (2014-2015). Dr. Kouro received the IEEE Power Electronics Society Richard M. Bass Outstanding Young Power Electronics Engineer Award in 2012, the IEEE Industry Applications Magazine 1st prize paper award of 2012, the IEEE Transactions on Industrial Electronics Best Paper Award of 2011, the IEEE Industrial Electronics Magazine Best Paper Award of 2008.

Dr. Samir Kouro
Professor, Department of Electronic Engineering, Universidad Técnica Federico Santa María, Chile

Presentation IV by Dr. You (George) Zhou

Power Electronics for Future Energy Internet

In this presentation, future de-centralized energy/power system is defined under the concept of energy internet with zero or low carbon emission feature. The role of power electronics within this context is reviewed and fundamental stability issue within multiple-converter based power system is discussed. Distributed energy storage is found to be the general solution to decouple the in-stability caused from constant power device connection. Based on this concept, an Energy Memory & Energy computer concept is proposed for future energy internet. The related energy control & management platform is then introduced as an Energy-Operating-System (EOS). Overall, power electronics is proven to be the fundamental and key technology for digitized energy system with defined development road map in energy internet.

Dr. You(George) Zhou earned his bachelor and master degree from Tsinghua University, China and his PhD degree in Toronto, Canada, all in Electrical Engineering. From 2000 – 2013, he was with Honeywell Aerospace, responsible for power/energy system design for various aircraft platforms including Boeing 7E7/787, Lockheed Martin F35, Airbus A380/A350. He pioneered digital power system design concept for Honeywell Aerospace and has won many awards in Honeywell including Honeywell Outstanding Engineer Award & Honeywell Technical Achievement Award. He has over thirty patents and related publications. In 2013, He joined National Institute of Clean and Low Carbon Energy (NICE) in Beijing, China, as a member of National “Thousand Talents Program”. He is now the technical leader for distributed energy system group of NICE, the core R&D section of its parental company Shenhua Group, ranked 165th of Fortune 500 in 2014 and supplies 12% energy of China. His research includes energy internet based system design and integration for multiple source based energy system including energy generation, energy conversion and energy storage from zero or low carbon emission perspective.

Dr. You (George) Zhou
National Institute of Clean and Low-Carbon Energy, Shenhua Group

Presentation V by Dr. Wuhua Li

Recent Research and Achievements in High Power Conversion System at SEEEDS

The efficiency, flexibility and reliability of high power conversion system have gained great popularity in power electronics community. Based on the classic definition of Dr. Newell on Power Electronics, the laboratory of SEEEDS (Sustainable & Efficient Electric Energy Delivery System) is dedicated to innovating advanced technology to improve the conversion efficiency, operation flexibility and system reliability in high power conversion system. At the semiconductor device level, the dynamic switching performance test principle and online-junction temperature extraction for high power IGBT modules will be introduced. At the power converter level, a Module Multilevel-clamped Composited Multilevel Converter (M-MC2) will be investigated. At the system control level, an accurate behavior model and common-mode voltage injection based nearest level modulation for modular multilevel converters (MMCs) will be highlighted.

Dr. Wuhua Li (M’09) received the B.Sc. and Ph.D. degree in Applied Power Electronics and Electrical Engineering from Zhejiang University, Hangzhou, China, in 2002 and 2008, respectively.
From 2007 to 2008, he was a Research Assistant in General Electric (GE) Global Research Center. From 2008 to 2010, he joined the College of Electrical Engineering, Zhejiang University as a Lecturer. In December 2010, he was promoted as an Associate Professor. Since December 2013, he has been a Full Professor at Zhejiang University. From 2010 to 2011, he was a Ryerson University Postdoctoral Fellow with the Department of Electrical and Computer Engineering, Ryerson University, Toronto, ON, Canada. His research interests include high efficiency power converters and renewable energy power conversion system. Dr. Li has published more than 100 peer-reviewed technical papers and holds over 30 issued/pending patents.

Dr. Wuhua Li
Professor, School of Electrical Engineering, Zhejiang University