The Collaborative Optimization Model of Park Energy Supply and Use Considering the Change of Supply - Demand Regulation Cost

For an integrated energy system (IES) of park with flexible load, the production of cold, heat, electricity, and steam can be changed by adjusting energy conversion equipment, and the load can also be changed by demand-side management. All energy conversion equipment operation and demand control measures require corresponding costs. It's necessary for integrated optimization of equipment side and demand side of energy products (such as cold, heat, electricity, and steam) to reduce cost of IES. In this paper, mathematical models for the various types of energy conversion and demand response costs are established, with the goal of minimizing the overall cost of energy supply, to comprehensively optimize the energy conversion system design and demand-side management in IES. The results show that compared with simply adjusting the output of energy conversion system, the coordinated regulation of energy production and demand side of the integrated energy system has the potential to further reduce the cost of integrated energy supply and utilization system.