# 基于PSCAD的500 kV输变电工程过电压的分析Influence Analysis of 500 kV Power Transmission and Transformation Project on Power Frequency Overvoltage Based on PSCAD

DOI: 10.12677/SG.2017.75040, PDF, , XML, 下载: 1,005  浏览: 3,234

Abstract: The line model selection of 500 kV transmission project will influence the switching overvoltage, and different maintenances will have different effects on overvoltage in practical engineering. Aiming at the above problems, the author uses electromagnetic transient simulation software PSCAD to stimulate and analyze the biggest impact on overvoltage with twelve kinds of mainte-nance modes under Bergeron, Mode Model, and Phase Model, and find that the switching over-voltage is closer to reality under Mode Model, and Phase Model. Besides, as for double loop power transmission project, the author analyzes one of the lines in different maintenance modes, and finds that the inspecting of its adjacent line will have the largest influences on the power frequency overvoltage. So, the engineer should pay more attention in practical engineering. Through the analysis above, the author hopes to give some guidance to the startup and maintenance of 500 kV transmission project.

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