含风光储及热泵的CCHP系统配置优化研究

Research on Configuration Optimization of CCHP System With Wind⁃solar⁃storage and Heat Pump

燃气冷热电联供系统(Combined,Cooling,Heating and Power,CCHP)设备容量及运行策略的整体优化对冷热电联供系统的高效经济运行至关重要。为提高冷热电联供系统的综合性能,提出了一种计及风光储与热泵的冷热电联供系统,采用考虑不同权重因子的综合评价指标,利用建筑模拟分析软件DeST建立山东某区域建筑的建筑模型,得到冷热电风光负荷数据,以综合性能指标为优化目标,采用混合整数线性规划(Mixed Integer Linear Programming,MILP)算法对系统进行优化配置,并与无风光的冷热电联供系统及分供系统进行比较,研究结果表明,本系统综合指标优化结果比分供系统提高47.8%,比常规CCHP系统综合性能提高19.5%。

The overall optimization of the equipment capacity and operation strategy of the combined cooling,heating and power(CCHP)system is crucial to its efficient and economical operation.In order to improve the comprehensive performance of the CCHP system,a combined cooling,heating and power system is proposed considering wind⁃solar⁃storage and heat pump,and a comprehensive evaluation index considering different weighting factors is established.DeST software is used to build an architectural model of a building in Shandong,and the wind and solar load data are obtained.Taking the comprehensive index as the optimization goal,the mixed integer linear programming(MILP)algorithm is employed to optimize the system configuration,and it is compared with the CCHP system without wind and solar equipment and sub⁃supply system.The research results show that the comprehensive index optimization result of the system is improved by 47.8%compared with the sub⁃supply system,and the comprehensive performance is 19.5%higher than that of the conventional CCHP system.