Development of transistorised PWM inverter fed induction motor drive for electric vehicle-a case study

The paper presents the experiences of the authors during the development of a transistorised PWM inverter-driven induction motor drive for an electric vehicle (EV) starting from a prototype laboratory model to its retrofitting in two types of automobile bodies and their trial runs as a case study. The derivation of ratings of inverter and induction motor-based on the technical specifications of the EV, the description of inverter-drive with results of retrofitting in mechanically modified automobile bodies and experimental results from the prototype-are presented.