【摘要】 在超高压输电线路中,通常会配置高抗和串补来提高输电线路的输电能力和系统的稳定性,同时也会对输电线路的电压特性造成影响。本文以500 kV A-B线路为例,分析了500 kV输电线路中高抗和串补的投退对于工频过电压、操作过电压以及潜供电流的影响,针对高抗和串补的投退方式、线路不同类型故障以及单双回线运行等方面的因素,进行了多角度的仿真分析和研究。研究结果对电网的运行具有一定的实际指导意义。更多还原

【Abstract】 In ultra-high voltage transmission lines, High voltage parallel reactor and series compensation are usually configured to improve the transmission capacity of the transmission line and the stability of the system, and also affect the voltage characteristics of the transmission line. Taking the 500 kV A-B line as an example, this paper analyzes the effects of High voltage parallel reactor and series compensation on the power frequency over-voltage, switching overvoltage and secondary arc current in 500 kV transmission lines, and Multi-angle simulation analysis and research were carried out on factors such as the method of High voltage parallel reactor and series compensation, different types of faults on the line and single and double loop operation. The research results have certain practical guiding significance for the operation of the power grid.更多还原