Single phase sinusoidal wave inverter based on BP neural network for small wind power system

In order to improve the waveform quality and reduce the harmonics of inverter for small wind power system (SWPS), a single phase sinusoidal inverter with high-frequency link is proposed in this paper. Two BP neural network (BPNN) controllers are designed to control the proposed inverter. One BPNN control the indirect DC/DC converter part to obtain stable DC voltage, and the other BPNN control the latter inverter part to achieve the output voltage with sinusoidal wave. A simulation studies based on Matlab is done. The result shows that the designed inverter with the BPNN controller can produce good quality of sinusoidal waveforms and have low total harmonic distortion. So the designed single phase sinusoidal inverter for SWPS can satisfy the performance requirement of high conversion efficiency and stability.