Reverse droop control strategy with virtual resistance for low-voltage microgrid with multiple distributed generation sources

Abstract In the island operation mode of microgrid, rated capacity and feeder impedance each parallel distributed generation inverter are different output power is difficult to be reasonably when traditional droop control strategy adopted, which reduces stability system. order solve this problem, transmission characteristics low-voltage microgrid analyzed leading factors affecting reasonable distribution obtained. A virtual resistor proposed difference between actual expected used compensation coefficient proportional integration adjust reference voltage DG inverter. The can automatically change in supply real time, caused by line mismatch improve quality, reduce system circulation, realize power. Finally, simulation model verifies effectiveness strategy.