Enhanced Z-Source Inverter with Capacitor Voltage Stress and Soft-Start Capability
Abstract:Abstract-This paper proposes an improved Z-source inverter topology. Compared to the traditional Zsource inverter, it can reduce the Z-source capacitor voltage stress significantly to perform the same voltage boost, and has inherent limitation to inrush current at startup. The control strategy of the proposed Z-source inverter is exactly the same as the traditional one, so all the existing control strategy can be used directly. A soft-start strategy is also proposed to suppress the inrush surge and the resonan… Show more
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