Title :
A simple and robust method for open switch fault detection in power converters
Author :
Salehifar, Mehdi ; Arashloo, Ramin Salehi ; Moreno-Eguilaz, Manuel ; Sala, Vicent ; Romeral, Luis
Author_Institution :
Dept. of Electron. Eng., Univ. Politec. de Catalunya, Barcelona, Spain
Abstract :
In this paper, a new fault detection method based on signal normalization using a simple trigonometric function is presented and applied to a five phase converter for fault tolerant application under nonsinusoidal unbalanced current waveforms. Generality, simplicity, ability to localize faulty switch, multiple switch fault detection and robustness are achieved using this approach. Once theory is explained, simulation results with Matlab/Simulink and experimental waveforms are described to show the effectiveness of the proposed detection method. Experimenal results corroborate these simulation results.
Keywords :
fault diagnosis; fault tolerance; machine control; permanent magnet motors; power convertors; synchronous motor drives; Matlab; Simulink; fault tolerant application; faulty switch localization; five phase converter; multiple switch fault detection; nonsinusoidal unbalanced current waveforms; open switch fault detection; power converters; signal normalization; trigonometric function; Circuit faults; Fault detection; Fault tolerance; Fault tolerant systems; Robustness; Simulation; Switches; PMSM drive; fault detection; fault tolerant converters; multiphase power converters; open switch fault;
Conference_Titel :
Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED), 2013 9th IEEE International Symposium on
Conference_Location :
Valencia
DOI :
10.1109/DEMPED.2013.6645756