主动储能调控在冷热电联供系统中的节能效果  

Evaluation of energy saving of CCHP systems using an active energy storage regulation method

作　　者：杨启超[1] 李连生[1] 

机构地区：[1]合肥通用机械研究院压缩机技术国家重点实验室,安徽合肥230031

出　　处：《储能科学与技术》2014年第4期316-321,共6页Energy Storage Science and Technology

基　　金：国家重点基础研究发展计划(973)项目(2010CB227305);安徽省自然科学基金项目(1208085ME68)

摘　　要：节能性是评价冷热电联供系统的重要指标之一。阐述了分布式冷热电联供系统中主动储能调控方法的原理。基于用户侧负荷特性和燃气轮机变工况运行规律的分析,采用相对节能率作为评价联供系统节能性的指标,以夏季冷电并供时的饭店类型建筑典型负荷为案例,探讨主动储能调控在分布式冷热电联供系统中的节能效果及影响因素。结果表明,与常规分产系统相比,无主动储能的相对节能率为11.8%,主动储能调控的联供系统相对节能率为21.6%。相对节能率的大小受到电压缩制冷系统性能系数和用户负荷冷电比的影响,电压缩制冷系统性能系数越高则联供系统相对节能率越低,用户负荷冷电比越高,联供系统相对节能率越高。Energy saving is one of the important indicators to evaluate the performance of a combined cooling, heating and power （CCHP） system. In this paper, the principle of active energy storage regulation method for CCHP systems is introduced. A parameter termed relative energy saving ratio is used for the evaluation of energy consumption of the CCHP systems. Based on the analyses of load characteristics of users and performance of gas turbines under partial load conditions, energy saving and associated influence factors are investigated using cooling conditions and electrical demands of a typical restaurant in summer time. The results show that the active energy storage regulation method could improve all-operation performance of primer. The relative energy saving of a CCHP system without energy storage is 11.8%, whereas the relative energy saving of a CCHP with energy storage is 21.6%. The relative energy saving is affected by the coefficient of performance of electrical compression refrigeration system and the ratio of cold and electricity of users. The higher the coefficient of performance of the electrical compression refrigeration system, the lower the relative energy saving of CCHP. The relative energy saving increases with increasing ratio of cold and electricity of users.

关 键 词：冷热电联供系统 储能 节能 用户负荷 

分 类 号：TK123[动力工程及工程热物理—工程热物理]