系统仿真学报 ›› 2015, Vol. 27 ›› Issue (11): 2858-2864.

• 短文 • 上一篇    下一篇

基于有限元的高压设备箱绝缘优化研究

律方成1, 马建桥1, 刘宏宇1, 汪佛池1,2, 谢军1, 贾步超3, 郭云翔1, 李敏4   

  1. 1.河北省输变电安全防御重点实验室(华北电力大学),保定 071003;
    2.中国电力科学研究院,北京 100192;
    3.南车青岛四方机车车辆股份有限公司,青岛 266111;
    4.宁夏天能电力设计公司,宁夏 吴忠 751100
  • 收稿日期:2015-04-16 修回日期:2015-05-11 出版日期:2015-11-08 发布日期:2020-08-05
  • 作者简介:律方成(1963-),男,内蒙赤峰,博士,教授,博导,研究方向电气设备绝缘机理;马建桥(通讯作者1982-),男,宁夏吴忠,博士生,研究方向为电气设备绝缘。
  • 基金资助:
    国家自然科学基金(51207055)

Insulation Optimization of High Voltage Box Based on Finite Element Method

Lü Fangcheng1, Ma Jianqiao1, Liu Hongyu1, Wang Fochi1,2, Xie Jun1, Jia Buchao3, Guo Yunxiang1, Li Min4   

  1. 1. Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense (North China Electric Power University), Baoding 071003, China;
    2. China Electric Power Research Institute, Beijing 100192, China;
    3. Qingdao Sifang Locomotive and Rolling Stock Co. Ltd. , Qingdao 266111, China;
    4. Ningxia Tianneng Electric Power Design Company, Wuzhong 751100, China
  • Received:2015-04-16 Revised:2015-05-11 Online:2015-11-08 Published:2020-08-05

摘要: 电缆连接器高压端部对箱体四壁放电影响动车组可靠运行,对连接器端部进行合理优化,可降低故障频次。分析绝缘护层加装位置、绝缘护层结构和绝缘护层厚度对电场强度分布的影响规律。仿真结果表明,电缆连接器高压端加装绝缘护层可有效改善电场分布,绝缘护层应紧贴连接器端部金属部件并延伸至靠近高压端的首个伞裙根部。试验结果表明:优化后的电缆连接器雷电冲击电压耐受值满足高海拔地区运行要求。

关键词: 动车组, 高压设备箱, 绝缘优化, 有限元法, 仿真计算

Abstract: The discharge between cable connector and box walls directly affects the operational reliability of CRH. Optimized design of the electric field distribution of the connector can improve stability of CRH. The sheath installation position, sheath structure and thickness of the insulation layer were analyzed to see its influence on the distribution of field intensity. The simulation results show that insulating jacket positioned at the high voltage end of cable connector can effectively improve the electric field distribution, insulation sheath should appress to the high voltage fitting end of the cable connector and also extend to the root of first ceramic umbrella. The test result shows that after installing the insulation sheath cling to the high voltage fitting surface, the withstand lightning impulse voltage value of the cable connector can fit the operational requirement at high altitudes.

Key words: China railways high-speed (CRH), high voltage box, insulation optimization, finite element method (FEM), simulation calculation

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