Switching Functions Model of a Three-phase Voltage Source Converter (VSC)

Seyed Mahdi Fazeli; Hew Wooi Ping; Nasrudin Bin Abd Rahim; Boon Teck Ooi

Switching Functions Model of a Three-phase Voltage Source Converter (VSC)

Seyed Mahdi Fazeli

Hew Wooi Ping

Nasrudin Bin Abd Rahim

Boon Teck Ooi

Vol. 17, No. 2, pp. 422-431, Mar. 2017

10.6113/JPE.2019.17.2.422

Four-Wire Three-phase system

Switching function

Voltage source converter

Zero sequence

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Abstract

The equivalent circuit of a three-leg, four-wire voltage source converter (VSC) is derived using switching functions. Simulations and experiments are conducted (i) to investigate the effects of the zero sequence on VSCs when a three-phase imbalance exists and (ii) to use the consistency of simulations and laboratory experiments to validate the equivalent circuit. The impact of a three-phase imbalance on the VSC has yet to be fully investigated because of the lack of an equivalent circuit to show rigorously how the zero sequence currents flow through the VSC.

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Cite this article

[IEEE Style]

S. M. Fazeli, H. W. Ping, N. B. A. Rahim, B. T. Ooi, "Switching Functions Model of a Three-phase Voltage Source Converter (VSC)," Journal of Power Electronics, vol. 17, no. 2, pp. 422-431, 2017. DOI: 10.6113/JPE.2019.17.2.422.

[ACM Style]

Seyed Mahdi Fazeli, Hew Wooi Ping, Nasrudin Bin Abd Rahim, and Boon Teck Ooi. 2017. Switching Functions Model of a Three-phase Voltage Source Converter (VSC). Journal of Power Electronics, 17, 2, (2017), 422-431. DOI: 10.6113/JPE.2019.17.2.422.