Title :
Space vector PWM technique with minimum switching losses and a variable pulse rate [for VSI]
Author :
Trzynadlowski, Andrzej M. ; Kirlin, R. Lynn ; Legowski, Stanislaw F.
Author_Institution :
Dept. of Electr. Eng., Nevada Univ., Reno, NV, USA
fDate :
4/1/1997 12:00:00 AM
Abstract :
A novel randomized control strategy for three-phase voltage source inverters, based on voltage space vectors, is described. An implicit asymmetrical modulating function results in switching losses in the inverter being reduced by about half in comparison with those using the classic space vector pulsewidth PWM method. The pulse rate is varied within individual 60° sectors of the vector plane, so that the power spectra of the output voltage are spread over a wide frequency range and acquire a continuous part. Relevant theoretical analyses, computer simulations and experimental results are presented
Keywords :
DC-AC power convertors; PWM invertors; bipolar transistor switches; circuit analysis computing; control system analysis computing; control system synthesis; harmonic distortion; insulated gate bipolar transistors; power bipolar transistors; power engineering computing; power semiconductor switches; power system harmonics; switching circuits; voltage control; PWM VSI; computer simulations; experimental results; implicit asymmetrical modulating function; output voltage; power spectra; space vector PWM technique; switching losses; theoretical analyses; three-phase voltage source inverters; variable pulse rate; voltage space vectors; Chirp modulation; Phase modulation; Pulse inverters; Pulse modulation; Pulse width modulation converters; Pulse width modulation inverters; Space vector pulse width modulation; Switching converters; Switching loss; Voltage control;
Journal_Title :
Industrial Electronics, IEEE Transactions on
