In view of real-time voltage control of distribution network considering distributed generator（DG）

a kind of real-time voltage control strategy for distribution network based on the coordination of transformer and demand response（DR）is proposed in this paper. The strategy uses the real-time measurement data collected by the data terminal to determine the status of transformer tap changer and load shedding demand to maintain voltage stability. In addition

the load voltage sensitivity matrix is set up

which can be used for voltage sensitivity analysis in the demand response. Finally

the effectiveness and robustness of the proposed strategy are verified by simulation. The results show that reasonable selection of load shedding can improve the voltage distribution and

in case of emergency

effectively keep the distribution network voltage within the allowable range.