基于天然气、地热能和太阳能的多能源耦合系统优化研究  

Study on optimization of multi-energy coupling system based on natural gas,geothermal energy and solar energy

作　　者：曾蓉[1] 胡吉 ZENG Rong;HU Ji(College of Civil Engineering,Xiangtan University,Xiangtan 411105,China)

机构地区：[1]湘潭大学土木工程学院,湖南湘潭411105

出　　处：《湘潭大学学报（自然科学版）》2024年第3期103-111,共9页Journal of Xiangtan University(Natural Science Edition)

基　　金：湖南省教育厅项目(20C1764)。

摘　　要：该文基于冷热电三联供系统、地源热泵、光伏和光热耦合的多能源耦合系统,构建了多能源耦合系统全工况优化模型,以能源、经济、环境的综合指标为优化目标,以燃气轮机的额定容量、决定是否运行燃气轮机的关键值、地源热泵供能与建筑负荷的比率、光伏面积和光热面积为优化变量,基于优先满足建筑总热需求的运行策略,以系统冷热电平衡和设备容量为约束,以粒子群算法对优化模型进行优化.提出的优化模型应用于北京的一栋宾馆建筑,得到了优化后系统的最优设备容量与运行策略,为多能源耦合系统的优化提供了参考.Based on the combined cooling,heating and power system,ground-source heat pump,photovoltaic and photo-thermal coupled multi-energy coupling system,this paper constructs a full-condition optimization model of the multi-energy coupling system,taking the comprehensive indicators of energy,economy and environment as the optimization objectives,and taking the rated capacity of the gas turbine,the key value to determine whether to operate the gas turbine,the ratio of ground-source heat pump energy supply to building load,photovoltaic area and photo-thermal area as the optimization variables,Based on the operation strategy of preferentially meeting the building heat demand,the optimization model is optimized by particle swarm optimization with the constraints of the system cooling,heating and power balance and equipment capacity.The optimization model proposed in this paper is applied to a hotel building in Beijing,and the optimal equipment capacity and operation strategy of the optimized system are obtained,which provides a reference for the optimization of the multi-energy coupling system.

关 键 词：多能源耦合系统 冷热电三联供系统 运行策略 优化 

分 类 号：TK01[动力工程及工程热物理]