A fuzzy-based approach for open-transistor fault diagnosis in voltage-source inverter induction motor drives

作者：Zhang Jianghan^*; Luo Hui; Zhao Jin; Wu Feng

来源：The European Physical Journal - Applied Physics, 2015, 69(2): 20101.

DOI：10.1051/epjap/2015140066

This paper develops a novel method for the detection and isolation of open-transistor faults in voltage-source inverters feeding induction motors. Based on analyzing the load currents trajectories after Concordia transformation, six diagnostic signals each of which indicates a certain switch are extracted and a fuzzy rule base is designed to perform fuzzy reasoning in order to detect and isolate 21 fault modes including single- and double-transistor faults. In addition, the fuzzy rules are rearranged and each of them is set to a reasonable value representing the fault modes. The simulation and experiment are carried out to demonstrate the effectiveness of the proposed fuzzy approach.

• 出版日期2015-2
• 单位华中科技大学