电网技术Issue(10)：2681-2688,8.
特高压交直流输电系统可靠性分析
Analysis on Reliability of UHVAC and UHVDC Transmission Systems
曾庆禹1
作者信息
- 1. 中国电力科学研究院，北京市 海淀区 100192
- 折叠
摘要
Abstract
Based on the structure of 1 000 kV/±800 kV UHVAC/UHVDC transmission system, a determinacy index based reliability model of series-parallel power transmission system is built and a reliability assessment method, in which the reliability of the two kinds of power transmission system is assessed by actual operational reliability indices of related components and sub-systems, is proposed. The features of the reliability of the two kinds of power transmission systems are compared and analyzed; the comparative analysis on impacts of the forced outage of the two kinds of transmission systems on power grid operation stability as well as the economy of the measures to maintain operation stability of power grid are discussed. Analysis results show that the reliability of high-capacity long-distance 1 000 kV AC transmission system is obviously higher than that of ±800 kV DC transmission system;when 1 000 kV AC transmission system is operated in double circuit mode and ±800 kV DC transmission system is operated in practical available capacity mode, the power grid stability can be evidently improved by use of linked modulation under monopole blocking.关键词
1 000 kV/±800 kV/输电系统/可靠性/模型/评价方法/稳定措施/经济性Key words
1 000 kV/±800 kV/transmission system/reliability/model/evaluation method/stability measures/economy分类
信息技术与安全科学引用本文复制引用
曾庆禹..特高压交直流输电系统可靠性分析[J].电网技术,2013,(10):2681-2688,8.
