南京理工大学学报（自然科学版）2017，Vol.41Issue(6)：725-729,5.DOI:10.14177/j.cnki.32-1397n.2017.41.06.010
考虑静止无功补偿器限幅特性的临界清除时间启发式算法
Heuristic algorithm for critical clearing time considering limiting characteristics of static var compensator
摘要
Abstract
To overcome the difficulty in power system transient stability analysis due to the limiting characteristics of the static var compensator( SVC) ,a heuristic algorithm is proposed to determine the critical clearing time( CCT) based on the features of SVC susceptance variation during the transients caused by short-circuit. The projection of the fault-on trajectory is calculated,and the CCT along it is determined by the derivative of the capacitive susceptance. The efficiency of transient stability analysis is improved because the transient energy, controlling unstable equilibrium point and the post-fault trajectory need not to be calculated. The analysis result of a three machine system shows that,the relative error of CCT is less than 10％.关键词
静止无功补偿器/限幅特性/临界清除时间/暂态稳定/电力系统Key words
static var compensators/limiting characteristics/critical clearing time/transient stability/power systems分类
信息技术与安全科学引用本文复制引用
江宁强,王晓..考虑静止无功补偿器限幅特性的临界清除时间启发式算法[J].南京理工大学学报（自然科学版）,2017,41(6):725-729,5.基金项目
国家自然科学基金(51577092) （51577092）
