IMPLEMENTATION OF HIGH EFFICIENT DSVPWM TECHNIQUE BASED INVERTER FOR THREE PHASE MOTOR

This paper presents an Implementation of High Efficient DSVPWM Technique Based Inverter For Three Phase Motor with field programmable gate array (FPGA)-based control integrated circuits (IC) used in power conditioning system for ac-voltage regulation. Digital Space vector pulse width modulation (DSVPWM) algorithm provides maximum flexibility to optimize switching waveform. In this system, double edge triggering was implemented. It consumes less power compare to other conventional PWM techniques. The DSVPWM pulses thus generated through Xilinx is given as switching pulses to voltage source inverter(VSI) circuit to trigger the three phase motor. The delay time of PWM output is programmable and DSVPWM control IC is reprogrammable. It shows the advantage of lower total harmonic distortion (THD) without increasing the switching losses. Here results are provided along with simulation analysis in terms of THD, output fundamental voltage and voltage transfer ratio to verify the feasibility of operation. The DSVPWM switching pattern has been achieved with a fundamental frequency of 50HZ.