| 电网技术 2009, 33(6) 1-4 DOI: ISSN: 1000-3673 CN: 11-2410/TM | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 本期目录 | 下期目录 | 过刊浏览 | 高级检索 [打印本页] [关闭] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 特高压输电 |
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| 锦屏-苏南特高压直流输电工程直流线路电磁暂态仿真 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 朱艺颖 呙虎 李新年 蒋卫平 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 中国电力科学研究院,北京市 海淀区 100192 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 摘要:
锦屏-苏南±800 kV直流输电工程的稳态运行电压和每极双12脉动结构与向家坝-南汇±800kV直流输电工程相同,但输送容量、输送距离和导线型号与向家坝-南汇±800 kV直流输电工程不同。针对锦屏-苏南±800 kV直流输电工程的主回路参数,利用电磁暂态计算软件EMTP-RV,分别针对2种导线分裂间距对线路内部过电压和沿线接地短路电流进行了电磁暂态仿真计算,给出了2种导线分裂间距下直流线路的最大过电压水平,并根据大量仿真计算结果给出了直流线路沿线过电压水平包络线以及沿线各点对地短路电流包络线。该研究结果为锦屏-苏南特高压直流工程的设计和建设提供了技术依据。 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 关键词: 特高压直流线路 电磁暂态 内过电压 短路电流 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Simulation on Electromagnetic Transient Process in DC Transmission Line of ±800 kV Power Transmission Project from Jinping to South Jiangsu | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| ZHU Yi-ying GUO Hu LI Xin-nian JIANG Wei-ping | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| China Electric Power Research Institute,Haidian District,Beijing 100192,China | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Abstract:
The steady state operation voltage and the double 12-pulse structure per pole in ±800kV DC power transmission project from Jinping to South Jiangsu are same as those in ±800kV DC power transmission project from Xiangjiaba to Nanhui, however the transmission capacity, transmission distance and conductor type of the former are different from the latter. Based on the parameters of main circuit of ±800 kV DC power transmission project from Jinping to South Jiangsu, by use of electromagnetic transient analysis software EMTP-RV the electromagnetic transient processes of internal overvoltage and earth short circuit currents along the transmission line under two types of bundled conductor spacing, namely 45cm and 50cm, are simulated respectively, and the maximum overvoltage level of HVDC transmission line under these two spacings is obtained. According a lot of simulation results, the envelope of overvoltage level along the HVDC transmission line and the envelop of earth short circuit currents at different points along the HVDC transmission line are given. Results of this research issue offer technical basis for the design and construction for ±800kV DC power transmission project from Jinping to South Jiangsu. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Keywords: UHVDC transmission line Electro-magnetic Inner overvoltage Short circuit current | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 收稿日期 2008-07-22 修回日期 1900-01-01 网络版发布日期 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| DOI: | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 基金项目: | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 通讯作者: 朱艺颖 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 作者简介: | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 作者Email: wzhyyf@epri.ac.cn | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| 参考文献: | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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