The designated harmonic suppression for SPWM

Yang Ping; Shi-ping Yang

doi:10.1117/12.664186

21 March 2006 The designated harmonic suppression for SPWM

Yang Ping, Shi-ping Yang

Proceedings Volume 6040, ICMIT 2005: Mechatronics, MEMS, and Smart Materials; 604014 (2006) https://doi.org/10.1117/12.664186
Event: ICMIT 2005: Merchatronics, MEMS, and Smart Materials, 2005, Chongqing, China

Abstract

SPWM is a critical method used in asynchronous motor-driven area. But harmonic components of inverter output wave impair its application in motor speed control. A new mixed algorithm was proposed for SPWM, which was a designated harmonic suppression technology by way of improved regular sampling in low voltage and low frequency and harmonic elimination in high voltage and high frequency. This algorithm was based on both analysis of sampled SPWM and Fourier series transform method and aimed at eliminating some odd harmonic components to obtain an identical sine wave. After explication of the harmonic elimination procedure and real time calculation process, an effective control mode and its control circuit were put forward so that the designated harmonic suppression made a reality. Applied it in whole speed adjusting range, the voltage can be conveniently controlled and high frequency harmonic components of SPWM are also improved.

Citation Download Citation

Yang Ping and Shi-ping Yang "The designated harmonic suppression for SPWM", Proc. SPIE 6040, ICMIT 2005: Mechatronics, MEMS, and Smart Materials, 604014 (21 March 2006); https://doi.org/10.1117/12.664186

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