Fault detection and mitigation in cascaded MLI fed EV

Abstract

Electric vehicles are steady returning to realization within the industrial market owing to their well-tried advantages in fuel economy and lower emission of pollutants. To fulfill increasing demand for higher dependability in power semiconductor converters applicable in electrical vehicles, fault detection (FD) and mitigation is a very important. During this study, a model-based on open semiconductor switch fault and closed semiconductor switch fault designation methodology is conferred for a voltage-source electrical inverter (VSI) supply a Squirrel Induction motor drive. To understand this goal, a model-based designed by using simulink. After that, the model is studied with and while not of each open and short faults. Afterwards, the planned FD technique identifies the faults within the H-bridge cell. The conferred FD technique is easy and fast; additionally, it's able to sight multiple open switch or open faults in distinction to standard ways. On the opposite aspect, so as to mitigate the occurred faults, the fault occurred switch leg of the cell has been shorted. This mitigation technique is employed to control multi fault in VSI controlled Induction motor based electrical vehicle drive.