Economic Optimal Operation of the Combined Cooling, Heating and Power Microgrid with Compressed Air Energy Storage

As an efficient and reliable energy supply mode, Combined Cooling, Heating and Power (CCHP) microgrid can effectively realize the coordinated energy supply among multiple energy sources. Compared with other types of energy storage technology, compressed air energy storage (CAES) technology is not only clean and efficient, but also has the unique characteristics of multi-energy flow, which makes it have a broad application prospect in the CCHP microgrid. In this paper, the economic optimal operation model of the CCHP microgrid with CAES is established, and the minimum total operation cost of the scheduling cycle is selected as the optimization objective. Typical output scenarios are taken as cases. The simulation results show that the economic benefits of the system are improved obviously by optimizing the operation mode and equipment scheduling plan. The reasonable matching and cascade utilization of the system multi-energy flow are realized.