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This paper proposes a five-level Z-source neutral-point-clamped (NPC) inverter with two Z-source networks functioning as intermediate energy storages coupled between dc sources and NPC inverter circuitry. Analyzing the operational principles of Z-source network with partial delink shoot-through scheme reveals the hidden theories in the five-level Z-source NPC inverter unlike the operational principle...
Z-source neutral-point-clamped (NPC) inverter has recently been proposed as an alternative three-level buck-boost power conversion solution with an improved output waveform quality. In principle, the designed Z-source inverter functions by selectively "shooting through" its power sources, coupled to the inverter using two unique Z-source impedance networks, to boost the inverter three-level...
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