Analysis and Suppression Strategy of Harmonics for SPWM Inverter

Xin Jun Li

doi:10.4028/www.scientific.net/AMR.588-589.454

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 588-589Analysis and Suppression Strategy of Harmonics for...

Analysis and Suppression Strategy of Harmonics for SPWM Inverter

Abstract:

The three-phase voltage type SPWM inverter output voltage and current harmonic and its generation rule is discussed. And put forward a new easy to implement harmonic suppression strategy, the method through the correct choice of the carrier frequency and the sinusoidal wave superimposed on a three wave makes saddle shaped wave, to produce a corresponding SPWM waveform control inverter switch on-off thus improving the output waveform. Mathematical analysis shows that is helpful to reduce the output voltage THD ( waveform distortion factor ), improved harmonic current loss and torque characteristics, the simulation results prove the validity of these measures and practical.

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Periodical:

Advanced Materials Research (Volumes 588-589)

Pages:

454-457

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.588-589.454

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Online since:

November 2012

Authors:

Xin Jun Li

Keywords:

Harmonic Analysis, Inverter, SPWM, Suppression Strategy

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