[1]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(06):725.[doi:10.14177/j.cnki.32-1397n.2017.41.06.010]
 Jiang Ningqiang,Wang Xiao.Heuristic algorithm for critical clearing time considering limitingcharacteristics of static var compensator[J].Journal of Nanjing University of Science and Technology,2017,41(06):725.[doi:10.14177/j.cnki.32-1397n.2017.41.06.010]
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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()
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
41卷
期数:
2017年06期
页码:
725
栏目:
出版日期:
2017-12-31

文章信息/Info

Title:
Heuristic algorithm for critical clearing time considering limitingcharacteristics of static var compensator
文章编号:
1005-9830(2017)06-0725-05
作者:
江宁强王 晓
南京理工大学 自动化学院,江苏 南京 210094
Author(s):
Jiang NingqiangWang Xiao
School of Automation,Nanjing University of Science and Technology,Nanjing 210094,China
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
Keywords:
static var compensators limiting characteristics critical clearing time transient stability power systems
分类号:
TM712
DOI:
10.14177/j.cnki.32-1397n.2017.41.06.010
摘要:
为克服静止无功补偿器(SVC)的限幅特性给电力系统暂态稳定分析带来的困难,本文基于短路引起的暂态过程中SVC导纳变化的特征,提出了1种故障临界清除时间(CCT)的启发式算法。计算故障轨线的投影轨线,并沿该轨线用容性导纳变化率确定CCT。由于不需要计算暂态能量、主导不稳定平衡点和故障后轨线等,因此该方法计算量小,暂态稳定分析效率高。对1个三机系统的算例分析结果表明,该方法得到的CCT相对误差小于10%。
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%.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-03-09 修回日期:2017-04-25
基金项目:国家自然科学基金(51577092)
作者简介:江宁强(1970-),男,博士,副教授,主要研究方向:电力系统建模、电力系统的稳定和控制、电力电子技术在电力系统中的应用,E-mail:jiangningqiang@hotmail.com。
引文格式: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,2017,41(6):725-729.
投稿网址:http://zrxuebao.njust.edu.cn
更新日期/Last Update: 2017-12-31