面向电容电流补偿的风电交流线路继电保护分析  

Analysis of Wind Power AC Line Relay Protection for Capacitance Current Compensation

作　　者：靳艾静 Jin Aijing(Hengshui Power Supply Branch of State Grid Hebei Electric Power Co.,Ltd.,Hengshui Hebei 053000,China)

机构地区：[1]国网河北省电力有限公司衡水供电分公司,河北衡水053000

出　　处：《现代工业经济和信息化》2024年第1期261-262,266,共3页Modern Industrial Economy and Informationization

摘　　要：为了进一步减弱线路电容电流显著问题,提出了一种面向电容电流补偿的风电交流线路继电保护方案,对风电送出线路新型电容电流调控过程进行分析,并对电抗器接地零序差动保护展开研究。研究结果表明:优化处理会造成差流的明显上升,具备比传统算法更高的灵敏度。能够有效提升电抗器零序差动保护制动效果,制动性增强了数十倍,电抗器零序差动保护灵敏度更高。In order to further reduce the significant problem of capacitor current,a new method of capacitor current compensation for wind power AC line relay protection is designed,the new capacitor current regulation process of wind power outgoing line is analyzed,and the zero sequence differential protection of reactor grounding is studied.The results show that the optimization process can increase the difference flow significantly and has higher sensitivity than the traditional algorithm.It can effectively improve the braking effect of the zero sequence differential protection of the reactor,increase the braking force by tens of times,and obtain higher sensitivity of the zero sequence differential protection of the reactor.

关 键 词：风电 送出线路 继电保护 线路保护 电抗器保护 

分 类 号：TM77[电气工程—电力系统及自动化]