Three-phase circuit LCL grid-connected inverter control strategy and simulation

In order to cope with the impact of new energy distributed generation system on the stable operation of grid-connected inverters and improve their ability to cope with grid changes, this paper proposes a three-phase circuit-based LCL grid-connected inverter control strategy and builds a simulation model. The stability verification. The results show that the proposed control strategy can achieve flexible adjustment of the power injected into the grid, and can ensure high power factor grid connection. The LCL filter works well to ensure the waveform quality of the injected grid current. Through the above control strategy, the high power factor control and the flexible adjustment of the injected grid power are realized.