NPV Control Method by Injecting Zero Sequence Voltage for Three Level NPC Inverter
The relationship of the zero sequence voltage and the neutral point voltage (NPV) is studied based on SPWM, in this paper. A new NPV control scheme by injecting a simple zero sequence voltage is proposed. The presented method does not require large collection of current and voltage signals, so it is very easy to implement. And the validity of the NPV control method is verified based on Matlab platform.
KeywordsZero sequence voltage NPV Control scheme SPWM
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