Energy Management of Microgrid and Its Control Strategy

To construct a supervisory control platform for microgrid in laboratory,the constitution,functions,tasks and working flow of an energy management system are proposed and the mathematical modeling of economic dispatching and optimal operation of the energy management system are described in detail.In allusion to the operation control of microgrid in the laboratory,a control strategy,in which the central controller is combined with local controllers,is put forward and the correctness of this control strategy is verified by the microgrid simulation model in the laboratory.Simulation results show that the proposed control strategy can implement optimal management,coordinative control and seamless switching of microgrid.