基于太阳能的CCHP系统的多目标优化

Multi-objective optimization of CCHP system based on solar energy

在传统的利用内燃机驱动的冷热电三联供(combined cooling,heating and power,CCHP)系统的基础上,文章提出了结合太阳能发电和内燃机联合驱动的新型冷热电联供系统模型,并加入了储能电池以提高可再生能源的利用率并克服太阳能发电的缺点;通过分析新型CCHP系统的能量流动过程,针对该新型模型提出了基于该系统的经济性、一次能源消耗量、用户满足度的多目标优化模型,以天然气的使用量、向电网侧的购电量以及切除的负载数为优化变量,使用字典序优化算法对其进行求解。

A new model of combined cooling, heating and power（CCHP） system driven by solar energy and internal combustion engine is proposed on the basis of traditional CCHP system driven only by inter- nal combustion engine. Then the energy storage hattery is added to improve the utilization of renewable energy sources to avoid the shortcomings of solar energy. And the multi-objective optimization model of the economics, primary energy consumption and satisfaction of users is presented through the analysis of energy flow process of new type of CCHP system, which considers the consumption of natural gas, pur- chase of electricity from the grid and number of load cut as optimization variables. And the lexicographic optimization algorithm is put forward to solve it.