110 kV变电站直流系统锂电池容量计算.pdfVIP

doi: 1 0 3969/j issn 1 007-290X 20 14 07 0 1 1 收稿日期:20 1 4-02-24 基金项目:中国南方电网有限责任公司科研项目(K-GD20 1 2-394)。 1 1 0 kV 电站直流系统锂电池容量计算 钟国彬 1 ,苏伟 1 ,魏增福 1 ,刘辉2,张言权3 (1 广东电网公司电力科学研究院,广东 广州 5 1 0080;2 东莞电力设计院,广东 东莞 523009;3 广东电网公司东莞供电 局,广东 东莞 523 1 20) 摘要:为了探索新型锂电池在变电站直流系统中的应用,根据 1 1 0 kV 标准变电站直流系统的配置,对事故负荷 和事故持续时间等进行分析,考虑容量系数和可靠系数,并根据磷酸铁锂电池和三元锂电池的放电曲线特点, 划分两种锂电池的有效工作区间,计算采用这两种锂电池作为 1 1 0 kV 变电站用直流电源时的电池配置,发现采 用磷酸铁锂电池时,至少需要 33 串 1 85 Ah 的电池;采用三元锂电池时,则至少需要 29 串 207 Ah 的电池,所 得结论大大证明了锂电池在变电站直流系统中应用的可靠性。 关键词: 1 1 0 kV 变电站;直流系统;锂电池;容量 中图分类号:TM9 1 2;TM63 文献标志码:A 文章编号: 1 007-290X(20 14)07-0055-04 Calculation on Capacity of Lithium Battery of Direct Current System in 110 kV Substation ZHONG Guobin1,SU Wei2,WEI Zengfu1,LIU Hui2,ZHANG Yanquan3 (1 Electric Power Research Institute of Guangdong Power Grid Corporation,Guangzhou,Guangdong 5 1 0080,China; 2 Dongguan Electric Power Design Institute,Dongguan,Guangadong 523009,China;3 Dongguan Power Supply Bureau of Guangdong Power Grid Corporation,Dongguan,Guangdong 523 1 20,China) Abstract:For studying application of new type lithium battery in direct current system in 1 1 0 kV substation,this paper ana- lyzes emergency load and duration according to configuration of direct current system in standard 1 1 0 kV substation Meanwhile,it considers capacity coefficient and reliable coefficient According to characteristics of discharging curves of Fe battery and ternary lithium battery,effective workspaces of these two lithium batteries were marked off By taking these two lithium batteries as battery configuration for direct current power source in 1 1 0 kV substation,calculation was conducted and the result showed that when using Fe battery,33 series of 1 85 Ah battery were at least needed,while when using ternary lithium battery,29 series of 207 Ah battery were at least needed Conclusion proves application reliability of lithium battery in direct current system in substation Key words: 1 1 0 kV substation;direct current system;lithium batter