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A New Modulation Strategy for Unbalanced Two Phase Induction Motor Drives Using a Three-Leg Voltage Source Inverter
Author(s)
Sinthusonthishat, S.
Date Issued
September 1, 2005
Type
Article
Abstract
This paper proposes a new modulation scheme providing unbalanced output terminal voltages of a standard threeleg voltage source inverter (VSI) for unsymmetrical type two-phase induction motors. This strategy allows a control method of the output voltages with typically constant V/Hz for a main winding and with voltage boost to compensate magnitude of current for an auxiliary winding. Harmonic voltage characteristics and the motor performance are investigated under a wide range of operating conditions. Practical verification is presented to confirm correctness and capabilities of the proposed technique. All results are compared to those of a conventional two-leg half bridge topology. The results show that the simulation results well agree with the experimental ones, and also the proposed scheme is superior to the conventional drive. © 2005, The Institute of Electrical Engineers of Japan. All rights reserved.
Citation
Ieej Transactions on Industry Applications, 125(5), 482-491, 2005