Webinars

 

Upcoming Webinars

Advanced Health-Conscious Fast Charging Schemes and Battery Management Systems for Autonomous E-mobility

Sponsored by the IEEE Power Electronics Society Technical Committee on Sustainable Energy Systems

Presenter:  Sheldon Williamson, Ontario Tech University, Canada
Date:  Tuesday, June 15, 2021, 11:30 am New York Time (Please note new time)

Abstract: It has become imperative to find a solution to manage energy production and usage accurately, especially within the context of future electric energy storage for aerial vehicles and autonomous e-transportation systems. Enhancing the life of Lithium-ion (Li-ion) battery packs has been the topic of much interest. In this framework, the role of on-board cell voltage balancing of Li-ion batteries will be highlighted in this talk. This is a very important topic in the context of battery energy storage cost and life/state-of-charge, SOC/state-of-health, SOH monitoring. Li-ion batteries, although popularly proposed for electric transport, have been highly uneconomic for energy storage, overshooting cost requirements by a large margin.

This talk will also introduce a first-of-its-kind closed-loop cell charge (voltage) balancing and extreme fast charging technique. The technique uses instantaneous cell voltage and/or temperature rise (ΔT) as a control parameter. Existing charging techniques for Li-ion batteries use a largely open-loop approach, where the charge profile is pre-decided, based on apriori knowledge of cell parameters. There is a need for closed-loop charging techniques that use instantaneous cell voltage and/or temperature to modulate the charging current magnitude. This seminar addresses this gap by proposing for the first time ever a constant-temperature constant-voltage (CT-CV) charging technique, considering cell temperature as a key degradation metric. This talk will also establish the benefits of the proposed CT-CV charging at cell level and increases the possibility of extending it to the pack level by integrating it with battery management systems.

Biography:​

Sheldon S. Williamson (S’01–M’06–SM’13–F’20) received his Bachelor of Engineering (B.E.) degree in Electrical Engineering with high distinction from the University of Mumbai, Mumbai, India, in 1999. He received the Masters of Science (M.S.) degree in 2002, and the Doctor of Philosophy (Ph.D.) degree (with Honors) in 2006, both in Electrical Engineering, from the Illinois Institute of Technology, Chicago, IL, specializing in automotive power electronics and motor drives, at the Grainger Power Electronics and Motor Drives Laboratory. Currently, Dr. Williamson is a Professor at the Smart Transportation Electrification and Energy Research (STEER) group, within the Department of Electrical, Computer, and Software Engineering, at Ontario Tech University, in Oshawa, Ontario, Canada. He also holds the prestigious NSERC Canada Research Chair position in Electric Energy Storage Systems for Transportation Electrification. His main research interests include advanced power electronics and motor drives for transportation electrification, electric energy storage systems, and electric propulsion. Prof. Williamson is a Fellow of the IEEE.

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Testing Inverters using Electric Motor Emulators:  Benefits, Challenges

Sponsored by the IEEE Power Electronics Society Technical Committee on Electrical Machines, Drives and Automation

Presenter:  Dr. Uday Deshpande, D&V Electronics, USA
Date:  Tuesday, June 29, 2021, 11:00 am New York Time

Abstract: In this webinar, the presenter will his experience and thoughts on the use of electric motor emulators for testing and validation of inverters.

The first part of the presentation will cover an overview of typical test and validation elements and steps and some of the trends considering increasing electrification and growth of electric vehicles. The second part of the presentation will discuss the essential elements of an electric motor emulator, how it can be used for testing an inverter in lieu of a conventional dyno, typical tests that can be done using an emulator test system including performance, durability, environmental, that address functionality and compliance. The third part of the presentation will cover challenges and considerations that need to kept in mind as people consider using emulator-based test systems. We will look at motor models and real-time implementation, considerations to ensure high fidelity representation of motor behavior, means and mechanisms to study faulted behaviors. Through this webinar, the audiences can expect an in-depth overview of this fast-growing approach to improve test efficiency and effectiveness and spark ideas and discussions to continuously improve design and development cycles.

Biography:​

Dr. Uday Deshpande is currently CTO of D&V Electronics, a maker of special test equipment used in automotive, military and defense applications for testing electrical systems and EV components.   Prior to joining D&V, Dr. Deshpande held global engineering leadership positions in companies such as CNH Industrial, Ingersoll Rand, General Atomics, Black & Decker.  He has worked on projects from electric power steering to electric drivetrain in automotive, on electromagnetic aircraft launch and recovery systems, electrification and autonomy for agriculture equipment, connected products and services. His areas of technical focus are electrical and electromechanical systems and their applications. Dr. Deshpande has been active in the IEEE Industry Applications and Power Electronics Societies and part of organizing and steering committees of several conferences including Co-General Chair of the ECCE 2011 conference.  He is the past Chair of the Industrial Drives Committee of the IEEE IAS and TC3 Motors, Drives & Actuators technical committee of the IEEE PELS and is an Associate Editor of the Transactions in Power Electronics. Dr. Deshpande received his B. Tech. (Hons.) degree from the Indian Institute of Technology, Kharagpur, India and the MS and PhD degrees from the University of Kentucky, USA, all in Electrical Engineering. Dr. Deshpande has several patents and publications to his name and is a Senior Member of IEEE.

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Adaptive EMC Design for Wide Bandgap Power Converters in Aviation Applications

Jointly Sponsored by the IEEE Transportation Electrification Community and the IEEE Power Electronics Society Technical Committee on Aerospace Power

Presenter:  Cong Li, GE Global Research Center, Niskayuna, NY
Date:  Wednesday, July 21, 2021, 9:00 am New York Time

Abstract: This webinar provides engineers with techniques to develop and construct electromagnetically compatible Wide Bandgap (WBG) power electronic converters used in aviation applications. Real-world examples and issues are demonstrated with high-frequency construction methods necessary to meet the Electromagnetic Compatibility (EMC) requirements.  The webinar provides fundamental EMC theory for SiC power electronics, a new “SOLVE” EMC design flow for WBG power converters, and practical design, construction, and measurement techniques.

Biography:​

Dr. Cong Li (S’09-M’15-SM’19) received the Ph.D. degree in electrical engineering specializing in power electronics from The Ohio State University, Columbus, OH, USA, in 2014.  He joined GE Global Research Center at Niskayuna, NY, USA as a Research Engineer in 2014 and is currently a Senior Power Electronics Engineer and EMC Lead. His research interests include power electronics topologies, Wide bandgap devices, high-density high power Silicon Carbide converters for automotive and aviation applications, and EMI mitigation techniques. He has authored more than dozens of technical papers, and patent applications in the area of power electronics and EMC. He is a voting member of commercial aviation DO-160 standard working group.  He is currently a Senior Member of IEEE, Associate Editor at IEEE Open Journal of Power Electronics and IEEE Transactions on Industry Applications. He is serving as secretary of IEEE-IAS-IPCSD-Power Electronics Devices & Components Committee (PEDCC), secretary of IEEE-EMCS-SC5 Power Electronics EMC, as well as Technicl Committee member of IEEE APEC, ECCE, ITEC conferences. He is a member of SAE and AIAA, and the recipient of the 2019 Promising Professional Award from the Society of Asian Scientists and Engineers (SASE).

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To find past webinars, click here. 

Please note you will need to be a member to access the past webinars on the TEC website.