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

Qiwu Luo, Jian Zheng, Yichuang Sun and Lijun Yang
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Qiwu Luo: School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China
Jian Zheng: College of Electrical and Information Engineering, Hunan University, Changsha 410082, China
Yichuang Sun: School of Engineering and Technology, University of Hertfordshire, Hatfield, Herts AL10 9AB, UK
Lijun Yang: College of Electric Engineering, Yanshan University, Qinhuangdao 066004, China

Energies, 2018, vol. 11, issue 10, 1-16

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.

Keywords: six-phase motor; six-phase inverter; harmonic voltage; space vector pulse width modulation (SVPWM); multiphase motor drive system (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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