Real-time Switches Fault Diagnosis for Voltage Source Inverter Driven Induction Motor Drive

Auteurs :  Merabet hichem, BAHI Tahar, Khouloud BEDOUD, DRICI Djalel
Année : 2018
Domaine : Electrotechnique
Type : Communication
Conférence: 2018 5th International Conference on Electrical and Electronics Engineering (ICEEE 2018)
Résumé en PDF :  (résumé en pdf)
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Mots clés : diagnosis, open circuit fault, short_circuit fault, Fuzzy logic, modeling

Résumé : 

Induction machine is the frequently used for electricaldrive applications in almost many industrial processes due to itssimple and robust construction. Speed control of induction machineis required depending on the type of application. Speed of theinduction motor can be varied by varying frequency or by variationof the terminal voltage. Variable voltage can be fed to inductionmachine using the voltage source inverter which is found efficienttechnique of controlling induction motor drive.The potential faults that occur in inverter are the open and shortcircuit switch fault. The cost of this schedule can be high, and thisjustifies the development of fault diagnostic methods.In this paper we present a reliable strategy for diagnosis anddetection of open and short circuit switch faults in Plush WidthModulation of voltage source inverter (PWM-VSI) using the fuzzylogic approach. The principle of the proposed approach is based onthe acquisition of stator currents, to calculate the average absolutevalues of currents (AAVC), which allows the real-time detectionand localization of inverter IGBT open or short-circuit faults usingjust the motor phase currents. A model of the system is built usingMATLAB/SIMULINK. Simulation results are presented showingthe monitoring approach performance under distinct operatingconditions.