Modeling and Simulation of Machine/Power-Electronic Interfaces
|Event Date:||November 7, 2017|
|Speaker:||Aaron M. Cramer|
|Speaker Affiliation:||Department of Electrical and Computer Engineering
University of Kentucky
|Contact Name:||Professor Scott Sudhoff
|School or Program:||Electrical and Computer Engineering
This seminar introduces the modeling and simulation of systems that contain a mixture of electric machines and power electronic components. Such systems can be found in electric drive systems, dc power systems, renewable energy, and conventional synchronous machine excitation. The seminar presents techniques for constructing numerical average-value models (AVMs) of such systems. The essential numerical functions for these models are extracted from detailed simulations and vary depending on the loading conditions. Numerical AVMs for rotating rectifiers in brushless excitation systems are presented and highlight existing difficulties with numerical AVM modeling and simulation. A new approach for AVM simulation of machine/power-electronic interfaces is discussed, which is capable of accurately representing both steady-state and transient conditions without inverting the voltage-current interfaces on either the ac or dc sides. This model can be simply incorporated in simulation models with traditional voltage-in, current-out formulations. Experimental results showing the advantages of the new approach are discussed, and potential applications of such modeling and simulation are highlighted.
Aaron M. Cramer received the B. S. degree (summa cum laude) in electrical engineering from University of Kentucky in 2003 and the Ph. D. degree from Purdue University in 2007. From 2007 to 2010, he was a senior engineer with PC Krause and Associates. He was an assistant professor from 2010 to 2016 at University of Kentucky, where he is currently an associate professor. His research interests include simulation, control, and optimization of power and energy systems. Dr. Cramer was a recipient of the ONR Young Investigator Program award in 2015. He serves as an Editor of IEEE Transactions on Energy Conversion.