Title :
Simple sensorless diagnosis method for open-switch faults in SVM-VSI-fed induction motor drive
Author :
Orlowska-Kowalska, Teresa ; Sobanski, Piotr
Author_Institution :
Inst. of Electr. Machines, Drives & Meas., Wroclaw Univ. of Technol., Wroclaw, Poland
Abstract :
In this paper a new simple diagnostic technique of single IGBT open-circuit faults for a two level voltage inverter-fed field oriented controlled induction motor drive is presented. A failure diagnosis is carried out utilizing a reference voltage vector analysis in stationary coordinates, without additional sensors. An extraction of fault information is based on monitoring the voltage vector time presence in specific sectors of the complex stationary plane. Thanks to diagnostic signal normalization, high robustness to false alarms is guaranteed. To validate the proposed method, simulation tests under a wide range of working conditions of the induction motor are presented for the direct field-oriented controlled drive system.
Keywords :
electrical faults; fault diagnosis; induction motor drives; insulated gate bipolar transistors; invertors; machine vector control; IGBT open circuit fault; SVM-VSI fed induction motor drive; direct field oriented controlled drive system; failure diagnosis; fault information; field oriented controlled induction motor drive; open switch fault; reference voltage vector analysis; sensorless diagnosis method; stationary coordinate; Circuit faults; Induction motors; Inverters; Torque; Transistors; Vectors; Voltage measurement; Space Vector Pulse Width Modulation; condition monitoring; fault diagnosis; induction motor drives; open-switch fault; sensorless; voltage inverters;
Conference_Titel :
Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE
Conference_Location :
Vienna
DOI :
10.1109/IECON.2013.6700507
