Abstract |
This paper shows new induction generation system for wind power generation. This system has the voltage source converter (VSC) exciting induction generator and the PFC converter to absorb the real power in parallel. However, the circulating current flows between two converters, since the DC side of VSC and PFC converter are connected commonly. The circulating current causes a bad influence due to three phase imbalance, and the rating and cost of VSC increase by circulating current. Therefore we need to decrease the circulating current. The method of the circulating current reduction is investigated by the simulation, analysis and experiment. The VSC current is also decreased by controlling the circulating current and enables cost reduction of the whole system. |