发电侧备用电池储能系统的技术经济分析.pdf

第5卷第1期
电力经济研究L
电力建设
014年1月
史侧备用电池储能亲的
故术经济析
廖强强,陆宇东2,王栋、,陈飞杰,周国定,曹君贤,葛红花,仲隽伟
(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.上海市电力公可市区供电公可,上海市200080)
摘要:儲能电池具有ms级的响应速度,能够快速孚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
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。
关键词:储能电池;备用电源;技术经济分柝;坏境效凎
Technical and Economic Analysis on Energy Storage System of
Standby Battery for Thermal Power Plants
LIAO Qiangqiang,IU Yudong, WANG Dong
CHEN Feiiie ZHOU Guoding",Caojunian", GE Honghua, ZHONG Junwr-
(I Shanghai Engineering Research Center of Electric Power Transfer, Shanghai University of Electric Power
Shanghai 200090, China; 2. Urban Power Supply Company, Shanghai Municipal Electric Power Company
Shanghai 200080, China)
ABSTRACT: 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 storag
systems is one of negative factors for their commercial applications. Taking lithium ion battery, sodium-sulphur battery and
vanadium redox Alow battery as illustrations of standby power for thermal power plants, their technical and economi
performances were studied by cost-benefit analysis. The results show that as the spinning reserve powcr 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 cuts. The reserve capacity of battery cnergy storage systems can improye load
ates 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 encrgy-saving and emission-reduction
KEYWORDS: energy storage battery; standby power; technical and economic analysis; environmental benefits
中图分类号:TM73;F426
文献标志码:A
文章编号:100-7229(204)01-018-04
DOL:10.3969/j.iss1000-7229.2014.01.023
以増加出力至额定容量,用以平衡瞬间负荷波动与负
0引言
荷预计误差。这部分负荷备用属于旋转备用,乂叫发
考虑到发电机组运行时可能出现出力不够的情电侧备用。因此,储能系统作为发电厂的备用,就是
况,每个发电厂都留有定的负荷备用容量,随时可将发电厂预留的一定的负荷备用容量(人部分时间
是不发电的,只是在瞬间负荷波动时可以增加出力
电K公司科技日(SSI0x,Sい上海市教委科研转移到储能系统身上,从而实现发比厂的满红发
创新项1(13YZ107)。
电。负荷备用容量一般按火电最大发电负荷的
I I Electric Power Constuction VOL 5, No 1, dan. 2014
万方数据