Title :
An optimal approach to random pulse width modulation in power inverters
Author :
Kirlin, Lynn R. ; Legowski, Stanislaw F. ; Trzynadlowski, Andrzej M.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Victoria Univ., BC, Canada
Abstract :
The paper describes an endeavor to optimize the power spectrum of output voltage of a three-phase voltage-source inverter using a novel, random-width, minimum-loss, space vector PWM technique. An original time-domain formulation of the spectral information has been derived. It contains all the necessary details for understanding the mechanisms of general randomization schemes for suppressing harmonics and diverting the harmonic power into the noise spectral density, The gained insights facilitate optimum design of the randomization parameters of any random PWM method and allow comparison among methods
Keywords :
PWM invertors; circuit optimisation; network analysis; power system harmonics; random processes; time-domain analysis; time-domain synthesis; harmonic power; harmonics suppression; inverters; noise spectral density; optimisation; output voltage; power spectrum; random pulse width modulation; randomization schemes; time-domain formulation; Acoustic noise; Power electronics; Power system harmonics; Pulse inverters; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Space vector pulse width modulation; Switching frequency; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 1995. PESC '95 Record., 26th Annual IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-2730-6
DOI :
10.1109/PESC.1995.474829
