|
|
|
| Fault analysis of the direct current optical current transformer |
| CHEN Yufei1,2, JIN Haiwang1,2, LI Jinbo1,2, LIU Peng1,2, LIU Yang1,2 |
1. State Grid Jibei Electric Power Co., Ltd EHV Power Transmission Company, Beijing 102488;
2. Hebei Key Laboratory of Equipment and Technology Demonstration of Flexible DC Transmission, Tianjin 300100 |
|
|
|
|
Abstract DC optical current transformer (OCT) is an important equipment in high voltage direct current (HVDC) transmission project. Its safety and stability is of great significance to the power grid. In this paper, the causes of a DC optical current transformer fault at a converter station are analyzed and the possible location of the fault is investigated. Finally, it is determined that the change in the characteristic parameters of the fault is caused by the cracks produced after the long term deterioration of the optical fiber melting point. This work is of certain reference value for fault analysis of the OCT in engineering.
|
|
Received: 11 November 2024
|
|
|
|
[1] 王永平, 赵文强, 杨建明, 等. 混合直流输电技术及发展分析[J].电力系统自动化, 2017, 41(7): 156-167.
[2] 王祺元, 靳巩磊, 康婧婧, 等. 高压直流输电工程换流变进线电压互感器断线故障分析[J].电气技术, 2023, 24(5): 71-75.
[3] 刘云鹏, 来庭煜, 刘嘉硕, 等. 特高压直流换流阀饱和电抗器振动声纹特性与松动程度声纹检测方法[J].电工技术学报, 2023, 38(5): 1375-1389.
[4] 李浩, 裴翔羽, 李泽文, 等. 具备故障电流限制能力的多端口直流断路器[J].电工技术学报, 2023, 38(10): 2818-2831.
[5] 宋璇坤, 闫培丽, 肖智宏, 等. 全光纤电流互感器技术应用评述[J].电力系统保护与控制, 2016, 44(8): 149-154.
[6] 李岩松, 王兵, 刘君, 等. 全光纤电流互感器测量性能的优化分析与实验研究[J].电工技术学报, 2018, 33(17): 4146-4153.
[7] 程嵩, 郭志忠, 张国庆, 等. 不闭合全光纤电流互感器相间磁场干扰特性[J].电工技术学报, 2017, 32(1): 88-96.
[8] 王佳颖, 王朔, 冯利民, 等. 全光纤电流互感器重采样同步算法对比研究[J].电气技术, 2018, 19(2): 61-65.
[9] 朱胜龙, 陈贵亮, 张佳庆, 等. 全光纤电子式互感器现场极性检查及误差测试方法[J].电气技术, 2018, 19(5): 63-66.
[10] 程炯, 杨世贵, 程航. 光电流互感器在直流输电中的应用及故障分析[J].电力科学与工程, 2008, 24(10): 60-64.
[11] 马洪灼, 曾子安, 吴小东, 等. 直流光电流互感器故障分析及整改措施研究[J].电工电气, 2021(12): 31-35.
[12] 彭舟, 康文, 张宏, 等. 鹅城换流站光CT运行情况分析及改进措施[J].电力学报, 2016, 31(1): 41-46.
[13] 陈飞, 刘浔, 黄瑶玲. 宜都换流站直流光电流互感器故障分析[J].湖北电力, 2014, 38(6): 30-33.
[14] 冯辉, 党睿, 姚毅杰. 光电流互感器故障引发交流滤波器差动保护动作问题分析[J].电工技术, 2023(23): 114-116. |
|
|
|
2025, Vol. 26 
