Current Programmed Controlled DC-DC Converter for Emulating the Road Load in Six Phase Induction Motor Drive in Electric Vehicle

Different kinds of electric motor drives are used in electric vehicle technology. Each motor drive shows diversity in numerous features like power density, efficiency, cost factor, reliability etc. Out of these Induction motors and Brushless DC motors are widely used in electric vehicle technology. In Induction motors, single phase, three phase and multi phase motors are used for the propulsion system of the electric vehicle. But research reveals that multi-phase induction motors are more economical, efficient and reliable than the traditional three phase and single phase motors. In Induction motors, as the number of phases increases the torque ripple will decrease which is a desirable characteristics in motor drives for electric vehicle. Due to the smooth operation, and uniform torque of a six phase induction motor they are used in air-craft and submarine applications. But the application of six phase induction motor is limited in automotives due to the non-uniformity in loads. So here a current programmed controlled DC-DC converter is developed to check the reliability of six phase induction motor in automotive applications.