A filtered SVPWM for multiphase voltage source inverters considering finite pulse-width resolution

Keng Yuan Chen*, Jwu-Sheng Hu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

A filtered space-vector pulse-width modulation (SVPWM) considering finite pulse-width resolution is proposed to produce a switching sequence with reduced baseband harmonics for multiphase voltage source inverters (VSI). The conventional SVPWM is sensitive to the pulse-width resolution which leads to increased harmonic distortion in digital-based implementations. By incorporating a pseudofeedback loop regarding weighted voltage difference between desired and produced phase voltages, the quantization error induced by finite pulse-width resolution is compensated, yielding a better tracking performance. The gating signals for multiphase VSIs are presented through rigorous mathematical derivation. In simulations and experiments, harmonic distortions of SVPWMs with and without filter compensation under various pulse-width resolutions are shown. The results confirm the effectiveness of the proposed scheme. The main advantage realized is reduction of acoustic noise and increased tracking accuracy.

Original languageEnglish
Article number6111488
Pages (from-to)3107-3118
Number of pages12
JournalIEEE Transactions on Power Electronics
Volume27
Issue number7
DOIs
StatePublished - 18 Apr 2012

Keywords

  • Maximum modulation index
  • multiphase
  • pulse-width modulation (PWM)
  • space vector
  • voltage-source inverters

Fingerprint Dive into the research topics of 'A filtered SVPWM for multiphase voltage source inverters considering finite pulse-width resolution'. Together they form a unique fingerprint.

Cite this