重庆大学学报2018，Vol.41Issue(4)：43-53,11.DOI:10.11835/j.issn.1000-582X.2018.04.006
电网可靠性评估的反向等量配对负荷削减模型
A reverse equivalent pairing load shedding model for assessing power system reliability
摘要
Abstract
To improve the calculation efficiency of reliability assessment for power system,a load shedding model of reverse equivalent pairing based on power flow sensitivity is proposed.Firstly,based on the sensitivity in the system's base state,an analytical formula of the sensitivity in fault state is deduced,and thus a fast solution to the trend sensitivity matrix is achieved.Secondly,according to the power flow sensitivity of nodes injection power with respect to overload branches,the selection rule of control nodes for both generation and load nodes is presented.Furthermore,a model of reverse equivalent pairing adjustment is constructed based on this selection rule.A modified formula of power adjustment amount of pairing nodes group is also presented and it eliminates the see-saw phenomenon of overload for normal transmission lines in adjusting process and avoids the power flow verification in traditional methods,which makes the system has a higher state analysis speed.Finally,the effectiveness and fastness are verified by evaluating RBTS,IEEE-RTS79 and IEEE-RTS96 test systems.关键词
可靠性评估/潮流/灵敏度/反向等量配对/负荷削减模型Key words
reliability assessment/power flow/sensitivity/reverse equivalent pairing/load shedding model分类
信息技术与安全科学引用本文复制引用
焦建林,元一平,赵渊,陆晓..电网可靠性评估的反向等量配对负荷削减模型[J].重庆大学学报,2018,41(4):43-53,11.基金项目
国家自然科学基金资助项目(50977094).Supported by National Natural Science Foundation of China (50977094). （50977094）
