基于无损传输线理论的特高压线路稳态过电压装置需求判别A Method to Judge Demand of UHV Transmission Lines on Steady-State Over-voltage Device Based on Lossless Transmission Line Theory
唐晓骏;付红军;胡扬宇;孟远景;刘东冉;秦晓辉;张文朝;马世英;刘楠;
摘要(Abstract):
利用无损传输线理论建立了特高压线路空充时沿线电压分布公式,综合考虑了特高压线路参数和甩空侧高抗配置,得到了不同合空侧电压下特高压线路的极限长度。在合空侧电压相同情况下,若特高压线路实际长度超过极限长度,则必须配置稳态过电压装置,避免特高压线路空充时沿线电压超过1 100 kV。该方法克服了现有判断方法完全依赖电力系统模拟软件进行大量繁琐仿真的问题,用PSD-BPA电力系统仿真软件的计算结果表明,该方法计算结果准确可靠,具有较高的应用价值。
关键词(KeyWords): 稳态过电压;传输线理论;特高压线路
基金项目(Foundation):
作者(Author): 唐晓骏;付红军;胡扬宇;孟远景;刘东冉;秦晓辉;张文朝;马世英;刘楠;
Email:
DOI: 10.13335/j.1000-3673.pst.2011.02.001
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