中国电力 ›› 2016, Vol. 49 ›› Issue (5): 53-58.DOI: 10.11930/j.issn.1004-9649.2016.05.053.06

• 安全专栏 • 上一篇    下一篇

输电线路污闪跳闸概率计算方法

王忠岳1,林济铿1,胡世骏2,刘辉2,叶剑华3,魏文辉4,林昌年4,孙义豪5   

  1. 1.同济大学电子与信息工程学院,上海201804;
    2.国网安徽省电力公司,安徽合肥230061;
    3.天津职业技术师范大学天津市信息传感与智能控制重点实验室,天津300222;
    4.北京科东电力控制系统有限责任公司,北京110179;
    5.国网河南省电力公司经济技术研究院,河南郑州450052
  • 收稿日期:2015-10-08 出版日期:2016-05-16 发布日期:2016-05-16
  • 作者简介:王忠岳(1991—),男,江苏泰兴人,硕士研究生,从事电力系统稳定性分析及控制、智能电网等研究。

E-mail: wzhy1991@yeah.net

WANG Zhongyue1, LIN Jikeng1, HU Shijun2, LIU Hui2, YE Jianhua3, WEI Wenhui4, LIN Changnian4, SUN Yihao5   

  1. 1. School of Electronics and Information, Tongji University, Shanghai 201804, China;
    2. State Grid Anhui Electric Power Company,Hefei 230061, China;
    3. Tianjin Key Laboratory of Information Sensing & Intelligent Control, Tianjin University of Technology and Education, Tianjin 300222, China;
    4. Kedong Power Control System Company Limited, Beijing 110179, China;
    5. Electric Power Economic Research Institute of State Grid Henan Electric Power Company, Zhengzhou 450052, China
  • Received:2015-10-08 Online:2016-05-16 Published:2016-05-16

摘要: 针对高压电网运行中绝缘子污闪风险概率评估的困难,提出了基于大气质量指数和微气象站信息的绝缘子附盐密度预测及污闪概率计算新方法。首先通过大气质量指数和微气象站信息分别获取区域中心位置的盐密和气象信息;然后基于该区域中心的气象信息和盐密数据通过支持向量机建立盐密预测模型;再根据其他绝缘子的气象信息,通过盐密预测模型计算出其他绝缘子的盐密值;最后通过恒定电压下绝缘子污闪概率模型计算输电线路的污闪概率,安徽电网220 kV输电线路的运行数据的计算结果验证了方法的正确性和有效性。

关键词: 污闪概率, 等值附盐密度(ESDD), 大气质量指数, 气象因素, 绝缘子

Abstract: To solve the problem of flashover risk forecasting of contaminated insulator in high power grid, this paper presents a new method of salt deposit density forecast and flashover probability calculation based on air quality index and weather conditions from micro meteorological stations. Firstly, salt density and meteorological data on section center are acquired from air quality index and information from micrometeorological station. Then a salt density forecasting model is established based on salt density and meteorological data on section center with support vector machine(SVM). According to meteorological information of other insulators, salt density is obtained through proposed forecasting model. Finally, combined with probability model of contaminated insulator under certain voltage, flashover probabilities of transmission lines are calculated. The historical data of 220 kV transmission lines in Anhui power grid verify the correctness and efficiency of proposed method.

Key words: probability of pollution flashover, equivalent salt deposit density (ESDD), air quality index, meteorological factors, insulator

中图分类号: