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Influence of post insulators on electric field distribution of AC filter circuit breakers |
LI Xinwei, HUANG Yangjue, TAN Lingqi |
Guangdong Key Laboratory of Power Equipment Reliability Enterprises (Electric Power Research Institute of Guangdong Power Grid Corporation), Guangzhou 510080 |
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Abstract The AC filter circuit breaker is an important part of the AC filter field of the high-voltage DC transmission system, and it is an important electrical equipment that ensures the frequent switching of the AC filter caused by the system reactive power change. In recent years, there have been repeated occurrences of breakdown and bursting of AC filter circuit breakers in the switching process of ±800kV converter stations, which seriously threatens the safe and stable operation of the DC transmission system. In order to analyze the reasons, this paper builds a ±800kV DC transmission system and an AC filter circuit breaker electromagnetic transient simulation model based on PSCAD/EMTDC. Combined with the distribution characteristics of the external insulation of the AC filter circuit breaker in operation, the single-break voltage characteristics of the AC filter circuit breaker are simulated and analyzed. Based on the internal structure and parameters of the AC filter circuit breaker arc extinguishing chamber, an Ansys finite element simulation model is built, and the electric field strength distribution in the arc extinguishing chamber is simulated and calculated.
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Received: 25 September 2020
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Cite this article: |
LI Xinwei,HUANG Yangjue,TAN Lingqi. Influence of post insulators on electric field distribution of AC filter circuit breakers[J]. Electrical Engineering, 2021, 22(8): 73-77.
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URL: |
http://dqjs.cesmedia.cn/EN/Y2021/V22/I8/73
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[1] 姚良忠, 吴婧, 王志冰, 等. 未来高压直流电网发展形态分析[J]. 中国电机工程学报, 2014, 34(34): 6007-6020. [2] 梁旭明, 张平, 常勇. 高压直流输电技术现状及发展前景[J]. 电网技术, 2012, 36(4): 1-9. [3] 杨帆, 宋天奇, 张雪波, 等. ±800kV侨乡换流站500kV交流滤波器小组断路器选相合闸问题分析[J]. 南方电网技术, 2014, 8(6): 34-38. [4] 杨健, 施红军. 800kV换流站交流滤波场断路器套管炸裂事故分析[J]. 电力与能源, 2013, 34(3): 244-246. [5] 郭树永. 一起500kV SF6断路器爆炸事故分析[J]. 高压电器, 2013, 49(2): 135-138. [6] 许杨, 陈小军, 李锋锋, 等. 550kV断路器典型故障分析[J]. 高压电器, 2013, 49(12): 80-87. [7] 阳少军, 石延辉, 夏谷林. 一起±800kV换流站投切交流滤波器用断路器故障原因分析[J]. 电力建设, 2015, 36(9): 129-134. [8] 王祺元, 赵静, 刘海斌, 等. 晋南特高压直流输电工程断路器重复分合闸问题的分析[J]. 电气技术, 2019, 20(9): 101-104, 113. [9] 申笑林, 马为民, 白光亚, 等. 特高压换流站800kV交流滤波器小组断路器容性恢复电压仿真[J]. 电力建设, 2015, 36(9): 73-77. [10] 张长虹, 阳少军, 杨旭, 等. 500kV交流滤波器用断路器绝缘故障分析及其绝缘特性研究[J]. 高压电器, 2016, 52(9): 1-7. [11] 周贵勇, 饶洪林. 换流站交流滤波器场断路器外绝缘闪络原因分析[J]. 电工技术, 2016(6): 1-2. [12] 赵普志, 李之洪, 张陵, 等. 断路器开断换流站交流滤波器小组负载的暂态电压分布仿真与分析[J]. 电子器件, 2020, 43(1): 200-204. [13] 李江涛, 孙义, 李擎宇, 等. 大电流开关柜温度分布特性的影响因素分析[J]. 电气技术, 2018, 19(9): 12-18. [14] 谢从珍, 李超红, 曾磊磊, 等. 绿藻对交流复合绝缘子伞裙表面形貌及憎水性的影响机理[J]. 电工技术学报, 2019, 34(4): 831-837. [15] 梁爽. 一起高压断路器烧毁故障的综合分析[J]. 电气技术, 2010, 11(2): 38-40. [16] 仝永刚. 赵玉柱稍不均匀电场中SF6气体的工程击穿场强[J]. 华通技术, 2005(4): 34-37. [17] 李歆蔚, 厉天威, 王程嘉, 等. 4种典型交流滤波器断路器灭弧室电场分析[J]. 广东电力, 2017, 30(6): 103-109. [18] 王程嘉, 唐力, 李歆蔚, 等. 金属微粒对交流滤波器断路器灭弧室电场的影响[J]. 高压电器, 2017, 53(6): 105-112. |
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