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Nowadays, the grid-connected photovoltaic systems are an important part of the renewable energy sources, and their performance is getting more and more important. Many reported researches focused on the traditional NPC topology. However, few researches were about the T-type NPC inverter. In this paper, a high power three-phase T-type neutral point clamped grid connected photovoltaic inverter prototype...
This paper presents a novel hybrid output filter topology for the inverter-motor system. It is shown that the proposed filter drastically reduces the common mode (CM) voltage at the motor terminals. The proposed filter is composed of a conventional $LC$ filter cascaded with an active motor CM impedance regulator. The active circuit, utilizing an integrated high-voltage op-amp, is very efficient in...
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