基于冷热电联供的多园区博弈优化策略

Game Optimization Strategy for Multiple Parks Based on Combined Cooling Heating and Power

园区一般涉及冷、热、电等多种能量流的生产、转换和使用,通过利用冷热电联供综合能源系统可以有效提高能源利用率、缓解能量供应压力。考虑动态电价机制下园区用电价格受市场需求影响,不同利益主体间存在博弈竞争关系。鉴于此,建立了基于冷热电联供的多园区非合作博弈优化模型,各园区以日运转成本最小为目标函数和其他园区共同参与博弈,同时考虑联供系统各单元出力、储能设备等约束条件,实现园区多能流互补协同优化。最后,以某地区三个园区的冷热电能流协调优化控制为例进行了仿真分析,算例结果表明所建立的博弈优化模型能合理分配联供系统出力及购电功率,不仅可以降低园区日运转成本,而且可以降低电网负荷峰谷差。

Game Optimization Strategy for Multiple Parks Based on Combined Cooling Heating and Power WU Fubao1 , LIU Xiaofeng2 , SUN Yiqian3 , CHEN Ning1 , YUAN Tiejiang4 , GAO Bingtuan2 （1. State Key Laboratory of Operation and Control of Renewable Energy ＆ Storage Systems （China Electric Power Research Institute）, Nanjing 210003, China; 2. School of Electrical Engineering, Southeast University, Nanjing 210096, China; 3. Electric Power Research Institute of State Grid Xinjiang Electric Power Co. Ltd., Urumqi 830011, China; 4. School of Electrical Engineering, Dalian University of Technology, Dalian 116024, China） Abstract ： Parks usually involve the production, conversion and use of various energy flows, such as cold, heat, and electricity. By utilizing the combined cooling heating and power （CCHP） system, the energy efficiency can be improved effectively and the energy supply pressure can also be eased. Considering that the market demand will influence the energy price of electricity under the real-time price mechanism, there exists the game competition among different stakeholders. Accordingly, a non- cooperative game model for multiple parks with CCHP system is established, in which the target of each park is to minimize the daily operation cost considering the constraints for power output of CCHP system and storage equipment. The proposed model can realize the collaborative optimization of various energy flows. Finally, the coordinated optimization control of three parks in a certain area is taken as an example. The simulation result shows that the model can allocate CCHP system output and purchase power reasonably, and daily operation cost of parks and peak-valley difference of power system will also he reduced.