Optimal Modeled Six-Phase Space Vector Pulse Width Modulation Method for Stator Voltage Harmonic Suppression

Qiwu Luo, Jian Zheng, Yichuang Sun, Lijun Yang

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)
102 Downloads (Pure)

Abstract

Dual Y shift 30 six-phase motors are expected to be extensively applied in high-power yet energy-effective fields, and a harmonic-suppressing control strategy plays a vital role in extending their prominent features of low losses and ultra-quiet operation. Aiming at the suppression of harmonic voltages, this paper proposes a six-phase space vector pulse width modulation method
based on an optimization model, namely OM-SVPWM. First, four adjacent large vectors are employed in each of 12 sectors on a fundamental sub-plane. Second, the optimization model is constructed to intelligently determine activation durations of the four vectors, where its objective function aims
to minimize the synthesis result on a harmonic sub-plane, and its constraint condition is that the synthesis result on the fundamental sub-plane satisfies a reference vector. Finally, to meet the real-time requirement, optimum solutions are obtained by using general central path following algorithm (GCPFA). Simulation and experiment results prove that, the OM-SVPWM performs around 37% better than a state-of-the-art competitive SVPWM in terms of harmonics suppression, which promise the proposed OM-SVPWM conforms to the energy-effective direction in actual engineering applications.
Original languageEnglish
Article number2598
Pages (from-to)1-16
Number of pages16
JournalEnergies
Volume11
Issue number10
DOIs
Publication statusPublished - 29 Sept 2018

Keywords

  • Harmonic voltage
  • Multiphase motor drive system
  • Six-phase inverter
  • Six-phase motor
  • Space vector pulse width modulation (SVPWM)

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