Abstract
As the dynamic response of the traditional direct power control using space vector modulation (DPC-SVM) is slow, an improved DPC-SVM for the three-phase grid-connected inverter is proposed. The feed-forward reference powers are used to improve the dynamic response. The operating principles of the traditional and improved DPC-SVMs are illustrated. Experimental results of a 15-kVA three-phase grid-connected inverter with the traditional and improved control methods verify the theoretical analysis.
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