Open & Short Circuit Fault Tolerant operation of 3 phase 2 level inverter for Permanent Magnet or Induction Motor Drive

The efficiency and reliability are the aspects of any electrical drive which attracts the customer towards it. Especially in case of EV the reliability is main issue. To make the EV more reliable the fault tolerant scheme of inverter for both permanent magnet and Induction motor drive have been explained here in this paper. The fault-tolerant operation (FTO) of the two-level inverter fed PM or induction motor for electric vehicle (EV) application. An introduction about open switch fault (OSF), short switch fault (SSF) and fault-tolerant operation of inverters is key aspects makes the drive more reliable. A simulation model for operation of the fault-tolerant is developed in MATLAB Simulink environment. The simulation model and results for fault-tolerant operation 2-level inverter fed induction motor & PM drive are shown.