Modelling and Simulation of a Seven-Phase Voltage Source Inverter Using Space Vector Theory

Shaik Moinuddin*, Atif Iqbal**
*,**,Department of Electrical Engineering ,Aligarh Muslim University ,Aligarh,India.
Periodicity:July - September'2007
DOI : https://doi.org/10.26634/jee.1.1.478

Abstract

Multi-phase ac motor drives are nowadays considered for various applications, due to numerous advantages that they offer when compared to their three-phase counterparts. Adjustable speed drives are invariably supplied from a voltage source inverter. Proper modelling of voltage source inverters is important in devising appropriate control algorithm. This paper develops complete model of a seven-phase voltage source inverter based on space vector approach. The leg voltages and line voltages along with phase voltages are illustrated. The Fourier analysis of output phase-to-neutral voltages, adjacent line voltages and non-adjacent line voltages is performed for fourteen-step and Pulse Width Modulation (PWM) modes of operation. The output phase-to-neutral voltage is shown to be essentially identical to those obtainable with a three-phase voltage source inverter.

Keywords

Pulse Width Modulation (PWM), voltage source inverter.

How to Cite this Article?

Shaik Moinuddin and Atif Iqbal (2007). Modelling and Simulation of a Seven-Phase Voltage Source Inverter Using Space Vector Theory. i-manager’s Journal on Electrical Engineering, 1(1), Jul-Sep 2007, Print ISSN 0973-8835, E-ISSN 2230-7176, pp. 30-41. https://doi.org/10.26634/jee.1.1.478

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