The control flexibility of the power inverters that interface distributed generation can be exploited to incorporate quality enhancement features in addition usual management control. This article presents a novel scheme achieves voltage balance at any node an ac microgrid regardless impedance value network. collaborative strategy is devoted set specific sharing balancing currents, thus avoidin...

Grid-connected solar micro-inverter is a highly nonlinear and time-varying system, so it is difficult to achieve good control effect using traditional PI controller. In this paper, small signal analysis model of micro-inverter is established, grid-connected current control strategy composed of fuzzy PI controller and grid voltage feed-forward is put forward, and the initial parameters of PI con...