Single Current Sensor-Based Vector Control of Solar PV-Battery Assisted Induction Motor Drive for Electric Vehicle

This paper presents the design and control of solar photovoltaic (PV) / battery-assisted induction motor (IM) drive train topology. To increase the driving range, solar PV panel is included. Based upon the power requirement, panel efficiency and available installation space the size of the panel is decided. Perturb and observe (PO) method is used to extract maximum power from the solar PV panel. The battery is charged either from the solar PV panel or regenerative operation of the motor. Single current sensor based vector control is implemented for propulsion induction motor drive in which, the three-phase motor currents are estimated from DC – link current using sinusoidal curve fitting observer. The speed of the motor is estimated by using a rotor flux based estimator. This topology is designed and implemented in Matlab / Simulink platform and analysis are performed for the various operating conditions, which shows inclusion of solar PV panel considerably reduces the discharging of the battery.