A carrier-based unbalanced PWM method for four-leg voltage source inverter fed unsymmetrical two-phase induction motor

This paper presents a carrier-based unbalanced pulsewidth-modulated method for a two-phase four-leg voltage source inverter (VSI) and its realization for an unsymmetrical two-phase induction motor. A modulation strategy is developed to synthesize unbalanced two-phase output voltage waveforms based o...

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Bibliographic Details
Main Authors: Yuttana Kumsuwan, Suttichai Premrudeepreechacharn, Vijit Kinnares
Format: Journal
Published: 2018
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84873345679&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/48241
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Institution: Chiang Mai University
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Summary:This paper presents a carrier-based unbalanced pulsewidth-modulated method for a two-phase four-leg voltage source inverter (VSI) and its realization for an unsymmetrical two-phase induction motor. A modulation strategy is developed to synthesize unbalanced two-phase output voltage waveforms based on the unipolar modulation technique with open-loop $V/f$ control. The proposed control scheme allows independent magnitude controllability and quadrature phase angle for unbalanced two-phase output voltages. Thus, the modulation algorithm makes the four-leg VSI inequitable with unbalanced two-phase loads. Simulation and experimental results confirm the feasibility of the control method for the inverter. © 2012 IEEE.