PEEMS (단국대학교 전력전자연구실)

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Paper Book Patents Articles

June-Seok Lee, Kyo-Beum Lee, and Frede Blaabjerg, "Open-Switch Fault Detection Method of a Back-to-Back Converter using NPC Topology for Wind Turbine Systems," IEEE Transactions on Industry Applications, vol. 51, no. 1, pp. 325-335, Jan/Feb. 2015.

2015

PEEMS

Oct. 4, 2023

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1. Authors: June-Seok Lee, Kyo-Beum Lee, and Frede Blaabjerg

2. Title: Open-Switch Fault Detection Method of a Back-to-Back Converter using NPC Topology for Wind Turbine Systems

3. Journal: IEEE Transactions on Industry Applications

4. Vol/no/pp: vol. 51, no. 1, pp. 325-335

5. Date: Jan/Feb. 2015

6. Abstract

: In wind turbine generation (WTG) systems, a back-to-back converter with a neutral-point-clamped (NPC) topology is widely used because this topology has more advantages than a conventional two-level topology, particularly when operating at high power. There are 12 switches in the NPC topology. An open-switch fault in the NPC rectifier of the back-to-back converter leads to the distortion of the input current and torque vibration in the system. Additionally, an open-switch fault in the NPC inverter of the back-to-back converter causes the distortion of the output current. Furthermore, the WTG system can break down in the worst case scenario. To improve the reliability of WTG systems, an open-switch fault detection method for back-to-back converters using the NPC topology is required. This study analyzes effects of inner and outer open-switch faults of the NPC rectifier and inverter and describes a novel open-switch fault detection method for all possible open-switch faults in the back-to-back converter.

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