Grid Solar Hybrid Speed Controller for Electric Vehicle ? A Working Model

This paper work presents a pulse width modulation (PWM) speed control technique for a working model of grid solar hybrid electric vehicle. The integrated system consist of solar panel, charge controller, battery, step down transformer, diode rectifier, PMDC motor, speed controller and PIC Microcontroller 16F876A. The working model can able to run on dual mode- solar and electricity. It can also be driven independently either by solar or electricity. The battery can be charge from solar panel (10W) or by power supply. The household single phase A.C. power supply of 230V is converted into 12V D.C. using step down transformer and rectifying circuit. The working model can achieve energy saving, low carbon emission, environmental protection for the upcoming future of human life. The motor speed is controlled by PWM technique implementation using the programming burn in microcontroller. This technique is implemented on working model and its application results in reduced current consumption and removal of mechanical parts. The experimental result shows that the digital controller is able to follow the reference speed and hence, speed control is achieved the result is shown graphically.