摘要
准确合理的运行方式组合对电力系统安全运行起着至关重要的作用。随着电网规模的不断扩大,传统运行方式组合方法难以适应现代电力系统复杂的网络结构。文中在对定值影响较大的典型网络拓扑结构的分析基础上,提出了基于拓扑辨识的电力系统运行方式组合方法。算法根据4个判据有针对性地选择对计算结果有较大影响的线路开断。通过算例比较分析了传统方式组合方法和基于拓扑辨识方式组合方法的整定结果,验证了所提方法的有效性。
Accurate and reasonable operation mode combination is of crucial importance for secure operation of power system. Along with unceasingly expanded scale of power network, it is hard for traditional combinatorial method of operation modes to suit to complicated network structure of modern power systems. In this paper based on the analysis on typical topological structures of power network that greatly impact the setting values, a combinatorial method of power system operation modes based on topological identification is proposed. According to four criteria, the transmission line disconnections, which greatly impact calculation results, are chosen with pertinence. Through calculation examples the setting results by traditional combinatorial method of operation modes are compared with those by combinatorial method of operation modes based on topological identification, and the effectiveness of the proposed combinatorial method is verified by comparison results.
出处
《电网技术》
EI
CSCD
北大核心
2010年第2期76-80,共5页
Power System Technology
基金
四川省应用基础研究项目(2007JY085)
关键词
整定计算
方式组合
保护定值
分支系数
setting calculation
combination of operation modes
setting of protective relaying
branch coefficient
