Abstract:In order to improve the quality of three-phase inverter voltage output waveform and decrease the harmonic component and aberration rate of the output voltage, this paper presents a control scheme combined with fuzzy control, neuron study and PID control. With DSP as the control core, voltage output waveform is transformed by Clarke and Park vector transformation. Neuron PID controller is used to adjust PID controller parameters online, and the fuzzy controller is used in Neuron PID controller to form the compound control strategy. And based on 60 degrees rotating frame, SVPWM technology is used in three-phase inverter control system. The control system is simulated in the situations of steady-state load, dynamic load and asymmetric load. The simulation results verify that the use of the scheme can obtain high quality voltage output waveform with low harmonic component and aberration rate.