Title: Z-source inverter fed induction motors

Authors: Hassan Ali

Addresses: Department of Electrical and Computer Engineering, College of Engineering and Architecture, University of Nizwa, Nizwa, P.O. Box 33, Sultanate of Oman

Abstract: This paper introduces an impedance-source power inverter (ZSI). The Z-source converter uses LC impedance network to supply the main converter circuit to the power source, which delivers the boosting of input voltage that is not feasible in conventional voltage-source inverter (VSI) and current-source inverter (CSI). The Z-source inverter (ZSI) overcomes the intellectual and theoretical difficulties and limitations of the conventional VSI and CSI. It provides a novel power conversion concept. The Z-source concept can be applied to all DC-to-AC, AC-to-DC, AC-to-AC, and DC-to-DC power conversion. To describe the operating principle and control, this paper focuses on a Z-source inverter for DC-AC power conversion fed induction motor drive system. Results are presented to demonstrate the innovative features of ZSI.

Keywords: Z-source inverters; soft switching; boost converters; induction motors; impedance networks; power conversion.

DOI: 10.1504/IJIED.2016.081578

International Journal of Industrial Electronics and Drives, 2016 Vol.3 No.2, pp.67 - 77

Received: 27 Jul 2016
Accepted: 20 Aug 2016
Published online: 15 Jan 2017 *

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