In this paper, the 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. Genetic algorithm (GA) technique is used to obtain the optimal switching angles. Simulation and experimental results are obtained to be guarantee that GA is eliminated the desired harmonics.