The low voltage micro-grid under traditional sag control is difficult to control the frequency and voltage amplitude of the system due to the influence of the line impedance

and therefore difficult to ensure stable operation of micro-grid. For this issue

a kind of sag control strategy is proposed in this paper

whichis static differential sag control method based on power decoupling and uses it to master-slave-peer hybridcontrol low voltage micro-grid. Using Matlab/Simulink software is used to set up master-slave-peer hybridcontrol network system model to simulate the proposed control strategy. Both the correctness and feasibilityof the proposed method is verified by the simulation result

which provides reference for improving the lowvoltage micro-grid frequency and voltage amplitude.