热电协同型热电冷三联供系统新流程和运行特性研究  

Study on new process and operation characteristics of the Co-operated heat and power CCHP system

作　　者：赵玺灵[1] 付林[1] 甄浩然 薄纯君 Zhao Xiling;Fu Lin;Zhen Haoran;Bo Chunjun(Department of Building Technology&Science,Tsinghua University;Lijin County Organization Committee Office)

机构地区：[1]清华大学建筑技术科学系 [2]利津县机构编制委员会办公室

出　　处：《区域供热》2018年第5期116-122,共7页District Heating

基　　金：北京市科技计划课题(编号:Z171100000617001)

摘　　要：可再生能源的波动性和不连续性给城市电网带来了更大的挑战,对热电联供系统而言,如何在供热的同时使发电量可调,适应可再生能源的发电特性,消纳更多的风电、光伏等可再生能源发出的间歇性的电力成为一个迫切需要解决的问题。传统的热电冷联供系统是固定热电比输出的一种系统,因为要满足供热需求必须发出一定的电力,而在同一时刻电力的不可调为可再生能源的入网造成了一定的困难。与此同时,传统的热电冷联供系统还存在着余热不能彻底回收的难题。本文针对热电冷联供系统在供热季纳入主动配电网时发出的电力难以灵活调节的问题,提出了适用于主动配电网的热电协同型热电冷联供系统,该系统能够适用于主动配电网的需求,灵活地调节发电和供热负荷,同时还能实现系统余热量的彻底回收。本文介绍了新系统的流程及特点,对系统运行特性进行了研究并进行了案例分析,在系统的可调节范围、运行能耗、经济性方面给出了具体的指导。The volatility and discontinuity of renewable energy have brought greater challenges to the urban power grid,and how to make the power adjustable while heating,to meet the power generation characteristics of renewable energy,and to eliminate the intermittent electricity generated by renewable energy sources such as wind power and photovoltaic is an urgent problem to be solved.The traditional CCHP system thermoelectric rate is fixed,in order to meet the certain demand of heating,the certain power is created,and the non-adjustable power cause some difficulties to eliminate the renewable energy.At the same time,the waste heat of the traditional CCHP system still can not be recovered completely.Aiming at the problem that the power of CCHP system can not be adjusted apply to active distribution network flexibly,this paper puts forward a new CCHP system which is suitable for the demand of the active distribution network,regulates the power generation and heating load flexibly,and realizes recover the waste heat of the system completely.This paper introduces the process and characteristics of the new system,studies the operating characteristics of the system and carries out case analysis,and gives specific guidance on the adjustable range,operating energy consumption and economy of the system.

关 键 词：热电协同 热电冷三联供 主动配电网 调度范围 余热回收 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程] TM61[电气工程—电力系统及自动化]