Bong Hyun Kwon, Sang-Hun Kim, Kyu-Chul Bae, and Kyo-Beum Lee, "Performance Analysis on a Bidirectional Operation of a Three-Level Hybrid ANPC Inverter," The Transactions of the Korean Institute of Electrical Engineers, vol. 68, no. 10, pp.1204–1213, Oct. > Paper

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Domestic Journals Bong Hyun Kwon, Sang-Hun Kim, Kyu-Chul Bae, and Kyo-Beum Lee, "Performance Analysis on a Bidirectional Operation of a Three-Level Hybrid ANPC Inverter," The Transactions of the Korean Institute of Electrical Engineers, vol. 68, no. 10, pp.1204–1213, Oct. 2019.

2019

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This paper analyzes the performance of a three-level hybrid active neutral-point clamped (ANPC) inverter in a bidirectional operation.

In the bidirectional operation where electrical energy flows from dc source to ac grid and vice versa, a weakness of neutral-point-

clamped (NPC) inverter is an unequal loss distribution between four silicon (Si) switching devices. A leg of the hybrid ANPC inverter

consists of the four Si insulated gate bipolar transistors (IGBTs) and two silicon carbide (SiC) active switches. Only two SiC metal

oxide semiconductor field effect transistors (MOSFETs) take all the switching events using redundant switching stated but the

switching losses are reduced compared to that of NPC inverter. The hybrid ANPC topology has an advantage of almost the same

power loss operating as a grid-connected inverter and rectifier. The validity of the power loss analysis in the bidirectional operation

is verified by a PSIM simulation model and experiment in the grid-connected three-phase three-level voltage source inverter.  

 

 

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