A real-time balancing market clearing model for grid-connected micro-grid including energy storage system

Under the environment of transmission and distribution separated electricity market, in order to realize the intelligent operation of micro-grid, this paper designs a two-level energy market, including the contract market and the real-time balancing market. The paper analyzes the operation model in detail that real-time balancing market compensates for the real-time gap between supply and demand of the micro-grid. The work realizes optimal configuration among power supply, energy storage device, load and distribution network, taking the efficiency profit maximization as the goal. The calculation results show that the real-time market response including the energy storage system and the demand side response can balance micro-grid supply and demand real-timely. And the teal-time balancing market can rapidly respond to the distribution network needed exchange capacity, and can enhance electricity efficiency of the terminal and reduce or postpone investments for units.