发电侧备用电池储能系统的技术经济分析  

Technical and Economic Analysis on Energy Storage System of Standby Battery for Thermal Power Plants

作　　者：廖强强[1] 陆宇东[2] 王栋[1] 陈飞杰[2] 周国定[1] 曹君贤 葛红花[1] 仲隽伟[2] 

机构地区：[1]上海电力能源转换工程技术研究中心(上海电力学院),上海市200090 [2]上海市电力公司市区供电公司,上海市200080

出　　处：《电力建设》2014年第1期118-121,共4页Electric Power Construction

基　　金：上海市科委项目(12692104500;12DZ0501800);国家电网公司科技项目(515111107X;52091113502K);上海市教委科研创新项目(13YZ107)

摘　　要：储能电池具有ms级的响应速度,能够快速平衡随时变化的负荷波动,可以作为火电厂的容量备用电源。但是,电池储能系统高昂的成本是阻碍其商业应用的重要原因之一。以锂离子电池、钠硫电池、全钒液流电池为例,采用成本收益分析方法,研究了其作为火电厂容量备用电源的技术经济性能。研究结果表明:尽管这3种储能电池的功率成本和能量成本较高,若将其作为火电厂容量备用电源,在其寿命周期内仍然可以获得较好的经济效益,收回成本年限远小于其寿命周期。通过电池储能系统的容量备用,可以提高火电厂的发电负荷率,降低发电煤耗,不但降低发电成本,而且减少燃煤电厂的CO2和污染物排放,从而起到节能减排的作用。Energy storage battery can be used as the standby power of thermal power plants because it has quick response in a scale of millisecond to balance instantaneous load fluctuation. However,the expensive cost of battery energy storage systems is one of negative factors for their commercial applications. Taking lithium ion battery,sodium-sulphur battery and vanadium redox flow battery as illustrations of standby power for thermal power plants,their technical and economic performances were studied by cost-benefit analysis. The results show that as the spinning reserve power sources,they can achieve remarkable economic benefits that their cost-recovering periods are far less than their life cycles,respectively, despite their high power costs and energy costs. The reserve capacity of battery energy storage systems can improve load rates of thermal power plants,decline gross coal consumption rates,decrease generating cost and the emission of carbon dioxide and pollutants,therefore have an effect of energy-saving and emission-reduction.

关 键 词：储能电池 备用电源 技术经济分析 环境效益 

分 类 号：TM73[电气工程—电力系统及自动化] F426[经济管理—产业经济]