矿用防爆锂电源均流系统设计

李起伟; 陈伟; 张健; 邵甜甜

doi:10.13272/j.issn.1671-251x.2021110006

矿用防爆锂电源均流系统设计

doi: 10.13272/j.issn.1671-251x.2021110006

李起伟^1,2,3,
陈伟^1,2,3,
张健^1,2,3,
邵甜甜^1,2,3

1. 煤炭科学技术研究院有限公司, 北京 100013;
2. 煤炭资源高效开采与洁净利用国家重点实验室, 北京 100013;
3. 北京市煤矿安全工程技术研究中心, 北京 100013

基金项目:

煤炭科学技术研究院有限公司科技发展基金项目(2020CX-I-09)

天地科技股份有限公司科技创新创业资金专项项目(2021-TD-MS003)。

详细信息

作者简介:
李起伟(1983-)，男，河北邯郸人，副研究员，硕士，现主要从事煤矿安全监控系统研发工作，E-mail:liqiwei@ccrise.cn。

中图分类号: TD611
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- 文章访问数: 112
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- 被引次数: 0
出版历程
- 收稿日期: 2021-11-02
- 修回日期: 2021-12-07
- 刊出日期: 2021-12-20

Design of current sharing system for mine explosion-proof lithium power supply

LI Qiwei^1,2,3,
CHEN Wei^1,2,3,
ZHANG Jian^1,2,3,
SHAO Tiantian^1,2,3

1. CCTEG China Coal Research Institute, Beijing 100013, China;
2. State Key Laboratory of Coal Mining and Clean Utilization, Beijing 100013, China;
3. Beijing Engineering and Research Center of Mine Safe, Beijing 100013, China

摘要

摘要: 针对矿用防爆锂电源多台并联使用时放电不均流的问题，设计了一种矿用防爆锂电源均流系统。该系统由多台防爆锂电源并联组成，防爆锂电源采用166节60 A·h的磷酸铁锂电池串联在隔爆腔内；采用基于平均电流的数字均流策略，以均流控制器为电流调节部件，采用双闭环方式进行控制，系统内环为电流环，外环为电压环，在电压环的基础上增加一个均流补偿，通过电压偏差信号与均流补偿信号实现均流控制。测试结果表明：采用均流系统后，总负载电流为20 A时均流不平衡度为1%～2%，总负载电流大于30 A时均流不平衡度保持在1%以内；与无均流策略的电源相比，采用数字均流策略的电源并联均流效果更好，供电可靠性更高。
- 防爆锂电源 /
- 并联组网 /
- 均流策略 /
- 并联均流放电 /
- 均流控制器 /
- 均流补偿 /
- 双闭环控制
Abstract: In order to solve the problem of uneven discharge current when multiple mine explosion-proof lithium power supplies are used in parallel, a current sharing system for mine explosion-proof lithium power supply is designed. The system is composed of several explosion-proof lithium power supplies connected in parallel. The explosion-proof lithium power supplies adopt 166 60 A·h lithium iron phosphate batteries connected in series in the explosion-proof cavity. The digital current sharing strategy based on the average current is adopted, the current sharing controller is used as the current adjustment component, and the double closed-loop control is adopted. The inner loop of the system is a current loop, and the outer loop is a voltage loop. A current sharing compensation is added to the voltage loop. The current sharing control is realized through voltage deviation signal and current sharing compensation signal. The test results show that after the current sharing system is adopted, the current sharing unbalance degree is 1%~2% when the total load current is 20 A, and the current sharing unbalance degree is kept within 1% when the total load current is greater than 30 A. Compared with the power supply without current sharing strategy, the parallel current sharing effect of power supplies using digital current sharing strategy is better and the power supply reliability is higher.
- explosion-proof lithium power supply /
- parallel network /
- current sharing strategy /
- parallel equalized discharge current /
- current sharing controller /
- current sharing compensation /
- double closed loop control

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参考文献(17)

[1]	谢浩.满足5G供电的矿用胶轮车大容量备用电源[J].煤矿安全,2021,52(2):153-156. XIE Hao.A large capacity backup power supply for mining rubber tires to meet 5G power supply[J].Safety in Coal Mines,2021,52(2):153-156.
[2]	梁玉芳.矿用防爆车辆锂离子蓄电池安全性研究[J].煤炭工程,2017,49(8):126-129. LIANG Yufang.Research on safety of li-ion battery used in mine explosion proof vehicle[J].Coal Engineering,2017,49(8):126-129.
[3]	刘见中,王运鹏,谢斌,等.矿用锂离子电池电源防爆保护技术及标准分析[J].煤炭科学技术,2020,48(9):203-208. LIU Jianzhong,WANG Yunpeng,XIE Bin,et al.Analysis on explosion-proof techniques and standards for lithium-ion battery power supply used in underground coal mine[J].Coal Science and Technology,2020,48(9):203-208.
[4]	姚京,詹昌辉,韩廷,等.车载动力锂电池组主动均衡系统设计[J].电子技术应用,2015,41(1):129-131. YAO Jing,ZHAN Changhui,HAN Ting,et al.A design of on board power lithium batteries active balancing system[J].Application of Electronic Technique,2015,41(1):129-131.
[5]	毛龙,李宏建,胡志坤,等.基于SOC分时控制容量可变锂电池管理系统设计与实现[J].宇航计测技术,2016,36(3)19-26. MAO Long,LI Hongjian,HU Zhikun,et al.Design and implementation of capacity variable lithium battery management system based on SOC[J].Journal of Astronautic Metrology and Measurement,2016,36(3):19-26.
[6]	华尧,赵康.一种矿用隔爆兼本安型锂电池不间断电源[J].仪表技术,2015(7):50-53. HUA Yao,ZHAO Kang.A mine explosion-proof and intrinsically safe online uninterrupted power based on lithium-ion batteries[J].Instrumentation Technology,2015(7):50-53.
[7]	沃磊,张勇,贺江波.隔爆外壳内大容量锂离子蓄电池应用的安全性研究[J].煤炭科学技术,2018,46(8):145-148. WO Lei,ZHANG Yong,HE Jiangbo.Study on safety of large volume lithium ion battery applied in flameproof enclosure[J].Coal Science and Technology,2018,46(8):145-148.
[8]	康丽杰,李慧,马媛,等.基于嵌入式的UPS电源远程监控系统的研究[J].电源技术,2016,40(4):876-877. KANG Lijie,LI Hui,MA Yuan,et al.Research of remote monitoring system of embedded UPS[J].Chinese Journal of Power Sources,2016,40(4):876-877.
[9]	祝龙记,吴忠岚,郑昌陆.应用于矿用电机车的并联交错DC/DC变换器研究[J].工矿自动化,2019,45(6):63-68. ZHU Longji,WU Zhonglan,ZHENG Changlu.Research on parallel interleaved DC/DC converter applied to mine electric locomotive[J].Industry and Mine Automation,2019,45(6):63-68.
[10]	游江,孟繁荣,张敬南.基于回路成形的并联DC/DC变换器均流控制器设计[J].中国电机工程学报,2019,39(2):585-593. YOU Jiang,MENG Fanrong,ZHANG Jingnan.Loop-shaping based current sharing controller design for parallel DC/DC converters[J].Proceedings of the CSEE,2019,39(2):585-593.
[11]	吴锡渊,王勤.应用于并联DC/DC变换器的新型自动均流技术研究[J].电子技术应用,2016,42(5):135-138. WU Xiyuan,WANG Qin.Research on a novel automatic current-sharing technique for parallel DC/DC converter[J].Application of Electronic Technique,2016,42(5):135-138.
[12]	尹鹏,李良光,陈兆权.矿用锂电池组并联均流电路的设计[J].电源技术,2013,37(2):206-208. YIN Peng,LI Liangguang,CHEN Zhaoquan.Parallel current-sharing circuit design for mine lithium batteries[J].Chinese Journal of Power Sources,2013, 37(2):206-208.
[13]	肖林京,常龙,张瑞雪,等.煤矿避难硐室锂离子蓄电池后备电源系统设计[J].煤炭科学技术,2014,42(7):73-77. XIAO Linjing,CHANG Long,ZHANG Ruixue,et al.Design on lithium-ion battery backup power system in coal mine refuge chamber[J].Coal Science and Tecnology,2014,42(7):73-77.
[14]	王玲,吴涛,李志忠.井下UPS并联供电系统无差拍环流抑制方法[J].工矿自动化,2016,42(6):70-74. WANG Ling,WU Tao,LI Zhizhong.Dead-beat circulating current suppression method of underground UPS paralleling power supply system[J].Industry and Mine Automation,2016,42(6):70-74.
[15]	王琼,李跃峰.电池组并联环流抑制方法的研究[J].电源技术,2017,41(1):44-45. WANG Qiong,LI Yuefeng.Study of restraining circulating current in battery pack of parallel[J].Chinese Journal of Power Sources,2017,41(1):44-45.
[16]	滕力,李媛媛,陈少棠,等.基于能量转换策略的锂电池组均衡技术研究[J].电源技术,2020,44(1):45-47. TENG Li,LI Yuanyuan,CHEN Shaotang,et al.Research on lithium battery pack equalization technology based on energy conversion strategy[J].Chinese Journal of Power Sources,2020,44(1):45-47.
[17]	李冰晶.煤矿用锂离子蓄电池设计及保护[J].煤炭与化工,2019,42(5):91-93. LI Bingjing.Design and protection of lithium ion battery for coal mine[J].Coal and Chemical Industry,2019,42(5):91-93.