PHOTOVOLTAIC POWERED ELECTRIC MOTOR DRIVES

Abstract

This dissertation presents speed control of DC and induction motor powered by photovoltaic panel. For a fixed radiation and temperature the amount of power developed by the panel is fixed, and MPPT is employed to attain maximum power out of this. Duty cycle is generated for switching of MOSFET and IGBT in boost circuit. Boost converter circuit is usually employed to attain the voltage equal to the rated motor voltage. Apart from this vector control of induction motor has been in focus the motor flux and torque is controlled independently as a result motor behaves like separately excited DC motor. With introduction of controllers the speed of motor is retained at rated speed even if load is applied to both DC and induction motor. The different types of controller used are PI controller, Fuzzy logic controller and ANFIS controller. The simulation results of these controllers are discussed in detail. MATLAB 7.10.0(R2010a) is used for simulation purpose.