Date of Award
January 2015
Degree Type
Dissertation
Degree Name
Doctor of Philosophy (PhD)
Department
Electrical and Computer Engineering
First Advisor
Oleg Wasynczuk
Committee Member 1
Oleg Wasynczuk
Committee Member 2
Maryam Saeedifard
Committee Member 3
Michael A. Capano
Committee Member 4
Scott D. Sudhoff
Abstract
Solid-state power converters are used in a rapidly growing number of applications including variable-speed motor drives for hybrid electric vehicles and industrial applications, battery energy storage systems, and for interfacing renewable energy sources and controlling power flow in electric power systems. The desire for higher power densities and improved efficiencies necessitates the accurate prediction of switching transients and losses that, historically, have been categorized as conduction and switching losses. In the vast majority of analyses, the power semiconductors (diodes, transistors) are represented using simplified or empirical models. Conduction losses are calculated as the product of circuit-dependent currents and on-state voltage drops. Switching losses are estimated using approximate voltage-current waveforms with empirically derived turn-on and turn-off times.
Recommended Citation
Subbiah, Anandakumar, "A Variable-Structure Variable-Order Simulation Paradigm for Power Electronic Circuits" (2015). Open Access Dissertations. 1318.
https://docs.lib.purdue.edu/open_access_dissertations/1318