Random PWM for DC-AC converter for adjustable speed drives

Pulse width modulation has nowadays become a major part of every Adjustable Speed Drives (ASDs). RPWM Intended for scattering the harmonic power and thus decrease the noise ripples and vibrations of induction machine used in Adjustable Speed Drives (ASDs). The proposed design of RPWM will be used to minimize the acoustic disturbance in ASDs with the assistance of renewable source solar energy which will provide working energy to the inverter circuitry. The spreading capacity of harmonic power is boosted by using Random PWM in the inverter, which is simulated in MATLAB. Simulation results shows that RPWM has been creating the exceptionally less acoustic noises with the cost of extremely less decrease of fundamental voltage with low THD. The THD and HSF are reported for validation of the scheme.