Analysis of flexibility optimal scheduling of CCHP power supply network

In the process of microgrid operation, there are many unstable factors in the power generation mode such as wind and solar. To solve the problem of improving the processing capability of the micro-grid with cooling, heat and power supply system, and to cope with the power fluctuation in the process of wind and solar energy, this paper plans to carry out the research on the flexibility optimization dispatch problem of microgrid. During the whole operation of the micro-grid, the cooling, heat and electricity system has the characters of complementary supply and demand, as well as supplementary cooling and thermal load. This paper uses a variety of flexible resources on the energy supply side and demand side to establish the balance. The balance is co-ordination of supply and demand and analyzes the flexibility. Then, the model with the lowest operating cost, the lowest cost of environmental pollution control and the highest flexibility of the microgrid system is established. The example calculation shows that this optimized low temperature combined power generation system can improve the flexibility of the used system, and on this premise, the reducing the system of environmental pollution cost and the operation cost.