储能科学与技术 ›› 2016, Vol. 5 ›› Issue (2): 241-245.doi: 10.3969/j.issn.2095-4239.2016.02.018

• 应用技术 • 上一篇    下一篇

磷酸铁锂电池组在110 kV变电站直流系统的应用

魏增福1, 苏伟1, 钟国彬1, 徐凯琪1, 王超1, 陈泗贞2, 郑威逊3, 赖日晶2   

  1. 1 广东电网有限责任公司电力科学研究院,广东 广州 510080;
    2 广东电网有限责任公司东莞供电局,广东 东莞 523120;
    3 广东电网有限责任公司惠州供电局,广东 惠州 516000
  • 收稿日期:2015-10-22 修回日期:2015-11-19 出版日期:2016-03-01 发布日期:2016-03-01
  • 作者简介:魏增福(1978--),男,硕士,高级工程师,研究方向为储能技术,E-mail:zengfu_wei@126.com.

Application of lithium ion phosphate battery in 110 kV substation DC power system

WEI Zengfu1, SU Wei1, ZHONG Guobin1, XU Kaiqi1, WANG Chao1, CHEN Sizhen2, ZHENG Weixun3, LAI Rijing2   

  1. 1 Electric Power Research Institute of Guangdong Power Grid Co. Ltd., Guangzhou 510080, Guangdong, China;
    2 Dongguan Power Supply Bureau of Guangdong Power Grid Co. Ltd., Dongguan 523120, Guangdong, China;
    3 Huizhou Power Supply Bureau of Guangdong Power Grid Co. Ltd., Huizhou 516000, Guangdong, China
  • Received:2015-10-22 Revised:2015-11-19 Online:2016-03-01 Published:2016-03-01

摘要: 本项目选用了两种不同的电池管理模式对磷酸铁锂电池组进行管理,并将组装好的两套电池组应用于110 kV变电站直流系统的日常运行.运行结果表明,磷酸铁锂电池可以在变电站替代铅酸蓄电池使用,并且可以浮充运行;运行过程中,单体电池的电压会由于电池充电态的变化下降或上升;单体电池的内阻呈现先下降再上升的变化;电池组的放电容量随着运行时间的延长出现每年3%左右的衰减(浮充电压为3.6 V);合适的电池管理模式能将电池组内单体电池的电压差保持在较小的范围,有利于电池组长寿命的运行.

关键词: 磷酸铁锂电池组, 直流系统, 电池管理模式

Abstract: Two types of battery management modes were applied for LiFePO4 battery packs used in 110 kV substation DC power system. The operation result indicated that LiFePO4 battery showed capability of replacement of lead-acid battery and good float-charging characteristics. The voltage and the internal resistance changed with the SOC of the single cells and the battery packs presented a 3% capacity degradation per year. Suitable battery management mode kept a small voltage difference among the single cells and prolonged the cycling life of the battery packs.

Key words: lithium ion phosphate battery pack, direct current power supply system, battery management mode

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