能量回馈型变电站蓄电池组活化系统  

Energy Feedback Activation System of Transformer Substation Battery Pack

作　　者：马艳 吴航 周亚 曹海 黄海宏 MA Yan;WU Hang;ZHOU Ya;CAO Hai;HUANG Haihong(State Grid Anhui Electric Power Co.,Ltd.,Chuzhou Electric Power Supply Company,Chuzhou 239000,China;Hefei University of Technology,Hefei 230009,China)

机构地区：[1]国网安徽省电力有限公司滁州供电公司,安徽滁州239000 [2]合肥工业大学,安徽合肥230009

出　　处：《电器与能效管理技术》2022年第5期88-92,共5页Electrical & Energy Management Technology

基　　金：国网安徽省电力有限公司2021年度群众创新项目(5212M0210006)。

摘　　要：蓄电池组是变电站直流系统重要的后备电源,定期活化是对蓄电池组进行容量检测、发现落后电池的有效手段。针对传统蓄电池活化装置是将蓄电池组放出的能量通过电阻消耗掉,存在能源浪费及火灾隐患,设计了一套带能量回馈型变电站蓄电池组活化系统。系统由DC/AC并网变流器、DC/DC变流器、监控和电池检测装置组成,可设定蓄电池组恒流放电电流,并实现蓄电池组能量回馈电网和交流侧高功率因数。对系统的工作原理进行分析,最终对实验样机进行功能验证。As the backup power supply of transformer substation DC system,the regular activation is an effective means to detect the capacity of the battery pack and find out the backward battery.In view of the fact that the traditional battery activation device consumes the energy released by the battery through the resistance,which has energy waste and potential fire hazards,a set of energy feedback activation system of the transformer substation battery pack is designed.The system includes the DC/AC grid connected converter,DC/DC converter,the monitoring and battery detection device,which can realize the energy feedback of the battery pack to the power grid and the AC side high power factor.The working principle is analyzed,and finally the function of the experimental prototype is verified.

关 键 词：电池活化 DC/AC并网变流器 DC/DC变流器 能量回馈 

分 类 号：TM92[电气工程—电力电子与电力传动]