高压电器2012，Vol.48Issue(4)：39-45,7.
同塔交直流线路容性耦合干扰的分析与计算
Analysis and Calculation for the Capacitive Coupling of the AC and DC Transmission Lines on One Tower
摘要
Abstract
More and more attentions were concentrated on the development of ultra-high voltage (UHV) transmission line techniques. To solve the land occupation, building the UHV AC and DC transmission lines in the same tower is investigated by some experts. In this paper the capacitive coupling interference between the AC and DC transmission lines is calculated when they are erected in the same tower, the interference for different situation is analyzed, and based on the interference, measures to shield the interference are presented in the end. Results indicate that the induced voltage in the DC transmission lines depends on the arrangement of AC transmission lines, the vertical distance between the AC and DC transmission lines and phase of three phase AC have influence on the capacitive coupling effects. The induced voltage decreases with the increase of the distance. To restrain the induced voltage on the DC transmission lines the anti-phase of double circuit technique can be adopted. By using drum arrangement in the AC transmission lines, the induced voltage on the DC transmission lines can be decreased by 46.8%, and using ground wire can decrease the induced voltage by 7%~18%.关键词
交直流同塔/容性耦合干扰/屏蔽/感应电压Key words
AC and DC on one tower/ capacitive coupling/ shielding/ induced voltage分类
信息技术与安全科学引用本文复制引用
任姝,何为,杨帆,马俊,任新民..同塔交直流线路容性耦合干扰的分析与计算[J].高压电器,2012,48(4):39-45,7.基金项目
国家自然科学基金项目(No.51007096) （No.51007096）
国家重点实验室项目资助(No.2007DA10512710502). （No.2007DA10512710502）
