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2상 및 3상 변조된 각상별 랜덤 펄스위치 펄스폭 변조기법의 성능비교
위석오(Seog-Oh Wi),임영철(Yung-Cheol Lim),정영국(Young-Gook Jung),나석환(Seok-Hwan Na) 전력전자학회 2002 전력전자학술대회 논문집 Vol.- No.-
In this paper, a comparative study on the performance of two-phase and three-phase randonuzed pulse position PWM scheme for mitigation of audible switching acoustic noise in motor drives is done in the randomized pulse position PWM, each of two-phase or three-phase PWM pulses is located randomly in each switching interval. Simulation and experimental efforts were executed to investigate the spread effects of power spectra of inverter output voltage, waveforms of ripple current and audible switching acoustic noise.