Advances in power semiconductor devices have led to inverters with unprecedented voltage edge rates. This has decreased inverter switching losses and enabled the use of increasingly higher switching frequencies. However, faster edge rates and higher switching frequencies increase electromagnetic compatibility (EMC) problems, machine insulation stress, bearing currents, and other aspects of system design. Typical computer simulations used to design and evaluate proposed electric drive systems cannot be used to predict these high-frequency effects. A wide-bandwidth multi-resolutional analysis that allows designers to anticipate and quantify high-frequency effects is detailed in this paper. The approach is specifically applied to permanent magnet synchronous machine drives, and is validated experimentally.
S. D. Sudhoff et al., "Wide-Bandwidth Multi-Resolutional Analysis of a Surface-Mounted PM Synchronous Machine," IEEE Transactions on Energy Conversion, vol. 14, no. 4, pp. 1011-1018, Institute of Electrical and Electronics Engineers (IEEE), Dec 1999.
The definitive version is available at http://dx.doi.org/10.1109/60.815021
Electrical and Computer Engineering
University of South Carolina
United States. Office of Naval Research
Keywords and Phrases
EMC Problems; Bearing Currents; Computer Simulations; Electric Drive Systems; Electromagnetic Compatibility; High-Frequency Effects; Higher Switching Frequencies; Inverter Switching Losses; Inverters; Invertors; Losses; Machine Insulation Stress; Machine Theory; Permanent Magnet Motors; Permanent Magnet Synchronous Machine Drives; Surface-Mounted PM Synchronous Machine; Switching Circuits; Synchronous Motor Drives; Wide-Bandwidth Multi-Resolutional Analysis
International Standard Serial Number (ISSN)
Article - Journal
© 1999 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.