A New Space Vector Modulation Strategy to Reduce Common-Mode Voltage for Quasi-Z-Source Indirect Matrix Converter
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abstract
2014 IEEE. A new space vector modulation (SVM) strategy is proposed for quasi-Z-source indirect matrix converter (QZS-IMC) to reduce common-mode voltage and to ensure a high voltage transfer ratio. QZS-IMC's common-mode voltage is analyzed, and the subdivided sectors are employed to rearrange switching sequence in the inverter stage, which can reduce common-mode voltage and power loss. The proposed modulation method mitigates the peak value of common-mode voltage by 42% and reduces the switching losses in the inverter stage. Experimental results verify the proposed method.
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2014 IEEE Energy Conversion Congress and Exposition (ECCE)