高压电器2018，Vol.54Issue(8)：21-26,6.DOI:10.13296/j.1001-1609.hva.2018.08.004
基于场路结合法的500 kV线路绝缘子串分布电压的计算
Calculation of the Voltage Distribution of Insulator Strings in 500 kV Lines Based on the Combination of Electrical Field and Road
李家靖 1董振 2曲锴2
作者信息
- 1. 武汉理工大学机电工程学院,武汉 430070
- 2. 武汉大学电气工程学院,武汉 430072
- 折叠
摘要
Abstract
The voltage distribution of high-voltage line insulator strings is extremely uneven and difficult to measure.This paper presents a new method for calculating the voltage distribution of insulator strings. This method calculates the insulator stray capacitance by Maxwell capacitance matrix and then substitutes it into the equivalent circuit of the insulator string for calculation. It is more comprehensive and more accurate than traditional methods. Through this method, the voltage distribution of insulator strings in a 500 kV line is simulated and the result is in good agreement with the actual measurement through experiment and it is more accurate than traditional circuit method. It is proved that the algorithm is feasible. Use this algorithm to calculate the influence of insulator deterioration at different positions of 500 kV line on the voltage of insulator strings. It is pointed out that the current method of deteriorating insulators may cause missed judgments.关键词
杂散电容/绝缘电阻/电压分布/劣化绝缘子Key words
stray capacitance/insulation resistance/voltage distribution/degraded insulators引用本文复制引用
李家靖,董振,曲锴..基于场路结合法的500 kV线路绝缘子串分布电压的计算[J].高压电器,2018,54(8):21-26,6.
