Active distribution network secondary coordinated voltage control based on multi-objective linear programming

The distribution network with a large number of distributed generator (DG) puts forward higher requirements for coordinated control of voltage / reactive power. Secondary voltage control is an effective method to improve distribution network voltage level under the condition of high permeable DG. Based on the basic principle of the secondary voltage control, multi-objective linear programming method is used to solve the contradiction between the safety and the economy of the distribution network, and the optimization goal construction, control strategy selection and control process realization are introduced respectively. The simulation results show that the voltage stability of the distribution network with high permeable DG can be solved by the secondary voltage control based on the multi — objective programming.