Publications Scientifiques
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Item Experimentation of practical new technique for single and two simultaneous diodes open faults automatic detection and localization in six diodes three phase bridge rectifier(SAE International, 2008) Benslimane, T.The faulty performance of six diodes three phase rectifier is studied under one and two simultaneous open-diodes conditions. This rectifier is feeding a resistive load. The rectifier three phases currents zero harmonic components and their maximum and minimum values are used as diagnostic indices. A knowledge algorithm is based to get information on which diode is in open-switch fault condition. This algorithm testing shows that the system could not only detect the open-switch fault, but also identify the faulty switches. Presented simulation results confirm the effectiveness of the proposed methodology.Item Currents mean and min/max values for diagnostic of one and two simultaneous open-switches faults in three phase voltage inverter fed permanent magnet brushless DC motor drives(SAE International, 2008) Benslimane, T.The faulty performance of permanent-magnet (PM) brushless dc motor drives is studied under one and two simultaneous open-switches faults conditions. This DC motor is supplied with three phase two level six IGBT (Insulated-Gate Bipolar Transistor) voltage source inverter. The three phases currents mean, min and max values of the DC motor are used as diagnostic indices. A knowledge algorithm is based to get information on which IGBT is in open-switch fault condition. This algorithm testing shows that the system could not only detect the open-switch fault, but also identify the faulty switch. Presented simulation results confirm the effectiveness of the proposed methodology