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has been cited by the following article:

• TITLE: Design and Implementation of a Three-Phase Active T-Type NPC Inverter for Low-Voltage Microgrids

  AUTHORS: Rick Chen, Ying-Yu Tzou

  KEYWORDS: Active T-Type NPC Inverter, Modular Design Methodology, Loss Analysis, Efficiency Optimization

  JOURNAL NAME: Energy and Power Engineering, Vol.9 No.4B, April 6, 2017

  ABSTRACT: This paper presents the design and implementation of a 3 kVA three-phase active T-type neutral-point clamped (NPC) inverter with GaN power devices for low-voltage microgrids. The designed inverter is used in a battery-based energy system (BESS) for power conversion optimization in applications to low-voltage microgrids. A modular design method has been developed for the design and implementation of the AT-NPC inverter. Experimental verification has been carried out based on a 3-kW three-phase T-Type NPC grid-connected inverter. FPGA based digital control technique has been developed for the current control of the three-level three-phase grid inverter. A maximum efficiency of 98.49% has been achieved within a load range from 50% to 75%.