PERFORMANCE EVALUATION OF SINGLE PHASE BIPOLAR AND UNIPOLAR SPWM INVERTER

This paper presents performance analysis of single phase sinusoidal PWM Inverter. PWM Inverters are used in many applications to obtain variable or regulated AC output voltage. PWM inverters have many advantages over other types of inverters. In this work advantages of PWM inverter over other inverters are discussed. Complete hardware design and performance analysis of single phase full bridge pwm inverter for two different cases i.e. bipolar spwm scheme and unipolar spwm with switching losses is covered. The detailed method of sinusoidal PWM signal generation using PIC microcontroller is discussed. Hardware and simulation results are presented in detail.