中文摘要：

随着超高压电网网架的不断加强和结构调整，部分配置在系统中限制工频过电压水平及潜供电流的高压并联电抗器在电网中的配置型式亟需优化。从超高压电网工频过电压及潜供电流产生和抑制的基本机理出发，结合电网工程实际案例，建立了基于PSASP7．0程序的仿真模型，在系统工频过电压水平及潜供电流仿真计算的基础上，提出了工程所涉及高压电抗器的优化配置方案，并对高压电抗器优化配置后的系统网架结构进行了电压和稳定校核，计算结果证明了研究所提出方法的有效行和可行性。

英文摘要：

With continuous strengthening and structure adjustment of the extra high voltage grid frameworks, the con- figuration type of some high voltage shunt reactors used to limit the power frecfuency over-voltage and secondary arc current should be optimized urgently. Based on the basic mechanism of generation and suppression of power frequency over-voltage and secondary arc current in EHVs, and combined with actual cases in power grid projects, this paper establishes a simulation model using PSASP 7.0 program. And on the basis of simulation calculations of the system power frequency over-voltage and secondary arc current, the paper proposes an optimization con- figuration scheme for HV reactors involved. The validity and feasibility of the optimization scheme are verified through the check and calculation of the voltage and stability, and the research results can provide reference for similar Droiects.