Current waveform control of distributed generation system for harmonic suppression on distribution system

The voltage waveform in the electric power distribution system is distorted by harmonic producing loads. Regardless of the terminal voltage waveform with or without harmonics, the output current waveform of the distributed power generation systems is always controlled to obtain a sinusoidal waveform. For harmonic suppression of the voltage and current on the distribution system, the authors propose the current waveform control of the distributed generation system with a PWM converter. The effectiveness of the proposed current waveform has been verified by experiments.