Full Utilization of the Inverter in Split-Phase Drives by Means of a Dual Three-Phase Space Vector Classification Algorithm
Yazdani, D.; Ali Khajehoddin, S.; Bakhshai, A.; Joos, G.
Industrial Electronics, IEEE Transactions on
Volume 56, Issue 1, Jan. 2009 Page(s):120 - 129
Digital Object Identifier   10.1109/TIE.2008.927405
Summary:A simple and effective space vector pulsewidth-modulation technique for six-phase voltage-source-inverter-fed split-phase induction motors is presented in this paper. The approach employs dual three-phase space vector modulators equipped with overmodulation schemes that compensate for the voltage gain reduction due to the use of two independently controlled three-phase inverters. It secures full control of the voltage gain up to the maximum achievable gain with negligible low-order harmonics and utilizes a simple classification algorithm for the implementation of the space vector modulation (SVM) in both linear and overmodulation modes. Experimental results are provided to verify the validity of the proposed SVM split-phase approach.

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