智能电网

Vol.6 No.4 (August 2016)

基于PSCAD 500 KV输电线路操作过电压仿真计算分析
Simulation and Analysis of Operating Overvoltage of Transmission Line Based on PSCAD 500 KV

 

作者:

宫小宇 , 梁郭江 , 潘 磊 :内蒙古工业大学,内蒙古 呼和浩特

吴集光 , 曹 斌 :内蒙古电力科学研究院,内蒙古 呼和浩特

 

关键词:

操作过电压影响因素PSCAD仿真Operating Overvoltage Influencing Factors PSCAD Simulation

 

摘要:

操作过电压对某些设备的绝缘选择起着决定性作用,为了更好地进行电气设备的绝缘配合,指导生产运行和科学试验,事先就必须进行过电压的计算。本文以呼和浩特抽水蓄能电站-武川变电站500 KV输电线路为例,利用PSCAD软件对其进行合空线操作过电压和单相重合闸过电压仿真计算,创新性的定量分析了三相合闸同期性、不同期性、合闸相位、线路长度、避雷器和合闸电阻等影响过电压因素。为电气设备的绝缘水平、合闸电阻值和合闸相位的选取提供理论依据,为抑制操作过电压提供了的限制措施。对系统运行安全可靠性和工程试验具有指导意义。

Operating overvoltage plays a decisive role in the insulation selection of certain equipment. In order to better carry out the insulation coordination of electrical equipment, to guide the produc-tion operation and scientific experiment, it must be calculated in advance. In this paper, taking the Hohhot Pumped Storage Power Station-Wuchuan 500 kV substation transmission line as exampel, their overhead line operating over voltage and single-phase reclosing overvoltage are simulated calculated by software PSCAD, and the influence factors of three-phase switching over the same period, different period, closing phase, the length of transmission line, lightning arrester and the closing resistance are analyzed innovatively. The research results provide a theoretical basis for the selection of electrical equipment insulation level, closing resistance value and closing phase, and provide limiting measures to suppress the operation over voltage, and are of guiding significance for system operation safety reliability and engineering test.

文章引用:

宫小宇 , 吴集光 , 曹 斌 , 梁郭江 , 潘 磊 (2016) 基于PSCAD 500 KV输电线路操作过电压仿真计算分析。 智能电网, 6, 231-241. doi: 10.12677/SG.2016.64026

 

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