IES Webinar Series

Extraordinary Women-in-IES Webinar: On Nash’s Game Theory over Networks by Lacra Pavel

Wednesday 21 June 2023 at 10:00 AM EDT, 4:00 PM CET By Lacra Pavel (University of Toronto, Canada) Register now using the link below: Abstract: Networks are ubiquitous around us. Consider the Internet, with its underlying communication, the smart grid/power network, a network of robots engaged in search and rescue, or a group of people interacting over Facebook. These are all instances of networks of multiple entities/agents that have decision-making capabilities and individual goals, while interacting in a strategic manner. In this talk, we consider decision-making over networks under the umbrella of game theory. In the classical setting of Nash’s game theory each player is assumed to interact with all others and to have complete information. The presence of the network brings in several new issues: complexity of agents’ networked interaction, local/partial information, delayed/asynchronous communication, the curse of dimensionality. In this talk we review some of our group’s work towards addressing these problems. Presenter’s bio: Lacra Pavel is a Professor in the Systems Control group, Department of Electrical and Computer Engineering, University of Toronto. She received the Diploma of Engineer in Automatic Control from Technical University Iasi, Romania and the Ph.D. degree in Electrical Engineering from Queen's University, ...
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Hairpin Windings: opportunities for E-Motors in Transportation

Thursday 25 May 2023 at 3:00 PM CET, 9:00 AM EST By Stefano Nuzzo (University of Modena and Reggio, Italy) Register now using the link below: Abstract: Hairpin windings are promising candidates for electric motors, as they offer higher fill factors, lower low-frequency losses, reduced end winding lengths and improved cooling capabilities than random-wound windings. Nevertheless, as the trend is to increase the operating frequencies of electrical machines, such solution often reflects on increased losses in cores and windings, as well as reduced reliability. This is particularly true in case of electrical machines driven by wide bandgap-based converters, which are known to trigger faster degradation of coil insulation. In addition, automation, sustainability and reliability of components’ manufacturing process are currently a challenge, especially in the transportation sector where high levels of repeatability are demanded. Hence, new winding concepts, and flexible and automatized manufacturing processes are required to mitigate these challenges. In this webinar, the presenter will review hairpin technologies, first presenting the fill factor as a key enabler for power density, and then discussing their impact on AC losses, voltage distribution, sustainability, thermal management and manufacturing process. The webinar is suitable for both industrial and academic audience and will ...
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