In order to deal with effectively the challenges of the access of large scale distributed renewable energy and the controllable load to the distribution network in the aspect of economic optimization and dispatching

the robust optimization economic dispatching model of distribution network considering multiple controllable load coordination is set up in this paper. First

the multiple controllable load adjustable model is set up considering the energy transfer characteristics of battery energy storage system

electric vehicle and electric load that can participate in demand side management. Then

the robust economic optimal dispatching model of the distribution network is set up considering the peak load regulation ability and dynamic constraints as well as minimum operation cost of the multiple controllable loads of distribution network. Finally

the actual data of a distribution network in eastern Inner Mongolia is taken as an example and the dispatching simulation analysis is performed on the improved IEEE 14 bus distribution system. It is verified that the model proposed in this paper can make full use of the regulation ability of multiple controllable loads and effectively improve the operation economy of distribution network.