Journal of the Korean Institute of Telematics and Electronics (대한전자공학회논문지)
- Volume 26 Issue 11
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- Pages.1829-1838
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- 1989
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- 1016-135X(pISSN)
Optimal Switching Pattern of SHE PWM for VSI-IM Drive System
VSI-IM 구동 시스템을 위한 SHE PWM의 최적 스위칭 패턴
Abstract
This paper is proposed one method of the exact optimal switching pattern of Selected Harmonic Elimination(SHE) Pulse Width Modulation(PWM). It defined Harmonic Elimination Band (HEB) at Constant Voltage(CV) and sought all solutions which are included HEB. Then, it calculated the Generalized Klirr Factor(GKF) beling to this solution and decided the optimal switching pattern which is minimized GKF. This optimal switching solution is used as initial condition of Newto Raphson(NR) method of decided easily switching pattern at Variable Voltage(VV). We desined the inverter by Power Transister(PTR) and implemented variable speed drive of Induction Motor(IM) in order to verify the validity of this theoretical proposition, then shown this results by comparison and analysis.
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