基于双向邻接路径和多支路断开的快速潮流转移识别
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摘要
为了加快输电断面搜索速度,提出了一种基于双向邻接路径的输电断面搜索方法.利用双向邻接路径算法搜索前K最短路径,对K的取值进行优化.基于叠加定理分析多支路断开情况下的潮流转移特点,并推导在多支路断开情况下线路功率变化量的表达式,估算潮流转移后线路的功率.定义并结合危险系数选取危险线路集.New England 39节点系统的仿真结果表明,此方法有效避免线路漏选,并适用于多支路断开情况,无需对全网进行计算分析,减小了大量的计算量,满足搜索的快速性和全面性,为过负荷控制做充分准备,对预防连锁跳闸事故的发生意义重大.
In order to speed up transmission section search speed,a algorithm for searching transmission section based on bidirectional adjacent path was given in the paper.The method show system network diagram by weighted adjacent matrix,searching for the first k shortest paths based on bidirectional adjacent path,optimize the value of k.Analyzing power flow transfer in the case of multi-branch disconnection based on superposition theorem,deducing the expression of line power variation in case of multi-branch disconnection. Define and combine danger factor,seleted dangerous line set.New England 39 node system simulation results shows,this method can effectively avoid line leakage and be suitable for multi-branch disconnection,don't need to analyze the whole network,reduce the amount of calculation,satisfying the rapidity and comprehensiveness of the search,add full preparation for overload control.To prevent the occurrence of chain tripping accidents is of great significance.
In order to speed up transmission section search speed,a algorithm for searching transmission section based on bidirectional adjacent path was given in the paper.The method show system network diagram by weighted adjacent matrix,searching for the first k shortest paths based on bidirectional adjacent path,optimize the value of k.Analyzing power flow transfer in the case of multi-branch disconnection based on superposition theorem,deducing the expression of line power variation in case of multi-branch disconnection. Define and combine danger factor,seleted dangerous line set.New England 39 node system simulation results shows,this method can effectively avoid line leakage and be suitable for multi-branch disconnection,don't need to analyze the whole network,reduce the amount of calculation,satisfying the rapidity and comprehensiveness of the search,add full preparation for overload control.To prevent the occurrence of chain tripping accidents is of great significance.
引文
[1]汤涌,卜广全,易俊.印度“7.30”、“7.31”大停电事故分析及启示[J].中国电机工程学报,2012,32(25):167-174,23.
[2]林伟芳,汤涌,孙华东,等.巴西“2·4”大停电事故及对电网安全稳定运行的启示[J].电力系统自动化,2011,35(9):1-5.
[3] Zhang Baohui,Ha Zhiguo,Bo Zhiqian.New development in relay protection for smart grid[J].Protection and Control of Modern Power Sys-tems,2016,1(1):121-127.
[4] Mojdeh Abdi-Khorsand,Vijay Vittal.Identification of critical protection functions for transient stability studies[J]. IEEE Transactions onPower Systems,2017,PP(99):1-9.
[5]何志勤,张哲,尹项根,等.电力系统广域继电保护研究综述[J].电力自动化设备,2010,30(5):125-130.
[6]周德才,张保会,姚峰,等.基于图论的输电断面快速搜索[J].中国电机工程学报,2006,26(12):32-38.
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[8]林济铿,杨添剀,胡世俊,等.基于模糊聚类和最短路径的关键输电断面确定新方法[J].电力系统自动化,2015,39(5):134-141.
[9]任建文,李刚,王增平,等.基于背离路径的输电断面搜索新算法[J].电网技术,2012,36(4):121-127.
[10]和敬涵,王紫琪,张大海.基于网络分割及旁侧路径搜索的输电断面识别方法[J].电力自动化设备,2017,37(7):1-7.
[11]聂宏展,林启春,林小青,等.基于双向广度优先法的输电断面搜索方法[J].东北电力大学学报,2017,37(3):13-18.
[12]苗世洪,马帅,尚亚男,等.基于割点和路径搜索的输电断面快速识别方法[J].电力系统自动化,2014,38(2):39-45.
[13]聂宏展,袁晓丹,张会强,等.基于多支路开断和关键支路集的快速潮流转移识别[J].电力系统保护与控制,2014,42(17):38-43.
[14]任建文,何培成.基于多支路切除和背离路径的潮流转移识别算法[J].华北电力大学学报:自然科学版,2016,43(6):1-6.
[15]王乙斐,唐飞,刘涤尘,等.基于Dijkstra算法的最优解列断面快速搜索方法[J].电力自动化设备,2015,35(4):126-131.
[16]聂宏展,王叫,马方明,等.基于潮流转移识别的紧急减载控制策略研究[J].东北电力大学学报,2016,36(4):1-6.
[17]任建文,何培成,李刚.基于虚拟支路模型与FTIL的多支路开断潮流转移搜索新算法[J].电网技术,2017,41(1):194-200.
[18]徐岩,郅静,王祥晖.基于N-1原则的输电断面热稳定功率极限评估[J].电力系统及其自动化学报,2017,29(1):13-17.
[19]牟颖,张保会,薄志谦.防止输电断面连锁过载的快速控制算法[J].电力系统自动化,2017,41(3):39-45.
[20]侯俊贤,韩民晓,董毅峰,等.基于子网络收缩的输电断面搜索方法[J].电力系统保护与控制,2015,43(12):92-97.
[2]林伟芳,汤涌,孙华东,等.巴西“2·4”大停电事故及对电网安全稳定运行的启示[J].电力系统自动化,2011,35(9):1-5.
[3] Zhang Baohui,Ha Zhiguo,Bo Zhiqian.New development in relay protection for smart grid[J].Protection and Control of Modern Power Sys-tems,2016,1(1):121-127.
[4] Mojdeh Abdi-Khorsand,Vijay Vittal.Identification of critical protection functions for transient stability studies[J]. IEEE Transactions onPower Systems,2017,PP(99):1-9.
[5]何志勤,张哲,尹项根,等.电力系统广域继电保护研究综述[J].电力自动化设备,2010,30(5):125-130.
[6]周德才,张保会,姚峰,等.基于图论的输电断面快速搜索[J].中国电机工程学报,2006,26(12):32-38.
[7]倪宏坤,徐玉琴.基于动态规划原理分支界限算法的关键输电断面搜索方法[J].华北电力大学学报:自然科学版,2009,36(4):11-15.
[8]林济铿,杨添剀,胡世俊,等.基于模糊聚类和最短路径的关键输电断面确定新方法[J].电力系统自动化,2015,39(5):134-141.
[9]任建文,李刚,王增平,等.基于背离路径的输电断面搜索新算法[J].电网技术,2012,36(4):121-127.
[10]和敬涵,王紫琪,张大海.基于网络分割及旁侧路径搜索的输电断面识别方法[J].电力自动化设备,2017,37(7):1-7.
[11]聂宏展,林启春,林小青,等.基于双向广度优先法的输电断面搜索方法[J].东北电力大学学报,2017,37(3):13-18.
[12]苗世洪,马帅,尚亚男,等.基于割点和路径搜索的输电断面快速识别方法[J].电力系统自动化,2014,38(2):39-45.
[13]聂宏展,袁晓丹,张会强,等.基于多支路开断和关键支路集的快速潮流转移识别[J].电力系统保护与控制,2014,42(17):38-43.
[14]任建文,何培成.基于多支路切除和背离路径的潮流转移识别算法[J].华北电力大学学报:自然科学版,2016,43(6):1-6.
[15]王乙斐,唐飞,刘涤尘,等.基于Dijkstra算法的最优解列断面快速搜索方法[J].电力自动化设备,2015,35(4):126-131.
[16]聂宏展,王叫,马方明,等.基于潮流转移识别的紧急减载控制策略研究[J].东北电力大学学报,2016,36(4):1-6.
[17]任建文,何培成,李刚.基于虚拟支路模型与FTIL的多支路开断潮流转移搜索新算法[J].电网技术,2017,41(1):194-200.
[18]徐岩,郅静,王祥晖.基于N-1原则的输电断面热稳定功率极限评估[J].电力系统及其自动化学报,2017,29(1):13-17.
[19]牟颖,张保会,薄志谦.防止输电断面连锁过载的快速控制算法[J].电力系统自动化,2017,41(3):39-45.
[20]侯俊贤,韩民晓,董毅峰,等.基于子网络收缩的输电断面搜索方法[J].电力系统保护与控制,2015,43(12):92-97.
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