摘要
对电力系统中的事故按照不同的分类标准进行了划分。提出了一种基于时域仿真的事故临界切除时间(CCT)区间的计算方法。并由该方法在事故扫描中的应用,提出了一种事故分类分时段扫描的可靠方法。该方法不必具体计算各个事故的临界切除时间,却可以得到各事故的临界切除时间和时间裕度的区间范围。该方法在保证对安全分析结果的完全性和正确性的同时,相对节省了大量机时。计算实例验证了该方法的有效性。
Contingencies in power system are sorted by various classifying standards. A time-domain simulation based method for critical clearing time (CCT) interval calculation is put forward. According to the application of this method in contingency screening a reliable method screening the contingency by fault classification and time period is proposed. In the proposed method the calculation of the CCT of each contingency is not to be performed, but the interval of the CCTs and time margins can be obtained. A large amount of computation time is saved while the completeness and correctness of security analysis are ensured. The effectiveness of the proposed method is verified by the results of calculation examples.
出处
《电网技术》
EI
CSCD
北大核心
2003年第10期72-77,共6页
Power System Technology
关键词
电力系统
时域仿真法
可靠性
临界切除时间
事故扫描
Time domain simulation
Critical clearing time (CCT)
Contingency screening
Power system
