Research on Improved Sag Control-based Microgrid Controller Strategy

Abstract

Abstract Firstly, the basic equivalent model of inverter parallel connection is briefly introduced, and then the basic working principle of sag control is described. The sag control has a certain effect on the regulation of reactive power and active power, but when the line impedance is not equal, the reactive power distribution among the inverters cannot be reasonably dispatched and distributed. The robustness of the system is verified.