This paper deals with the application of the
selective harmonic elimination technique of a closed-loop
control scheme of single-phase PWM inverter employing
proportional resonant controller. Selective harmonics
elimination (SHE) technique is used to eliminate low order
harmonics with relatively low inverter switching frequency.
The major challenge which faces this technique is solving large
numbers of nonlinear transcendental equations at each
modulation index to generate the power inverter switching
patterns. Proportional resonant controller is employed to
reduce both magnitude and phase errors of the load voltage.
Simulation of the proposed system is reported. The simulation
results show that this system is capable of producing load
voltage with low total harmonic distortion (THD).