Feedforward compensation method of output voltage for improving dynamic characteristic of AC/DC PWM converter in DC distribution

In this paper, feedforward compensation method is proposed to increase transient state dynamic characteristic of DC distribution system. In AC distribution system, voltage fluctuation of ±10[%] is regulated to normal range. Generally, the loads in AC system is not sensitive to voltage fluctuation because it supply power through DC/DC converter and diode rectifier. But, the loads in DC distribution system is sensitive to the rate of voltage fluctuation. Moreover, renewable energy which is composited with DC distribution, power amount is non-constant. Thus, consisting link with renewable energy, distribution system is required for stable power supply to the loads. Proposed method can improve quality of power and dynamic characteristic of distribution voltage through feedforward.