基于回溯法环网助增系数计算方法的研究
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摘要
随着高压电网结构的日益复杂,大小环网互相交错的情况屡见不鲜,这使得继电保护的整定计算越来越复杂,尤其是计算定值需要满足各种运行方式,而助增系数的计算结果受运行方式的影响极大,因而搜索极端运行方式是定值整定计算的重中之重。针对现有高压环网的特点,提出了一种基于回溯算法计算助增系数的方法,通过对保护支路的回溯搜索可得到不同级数的环网,全面考虑不同级数环网各种恶劣运行方式下的助增系数,并通过算例与传统助增系数计算方法的计算结果进行了对比,得出基于回溯算法能够快速准确地找到更为极端运行方式下的助增系数,最后通过实例电网验证了该算法的有效性,并对该算法的复杂度进行了分析,验证了其快速性。
With the increasingly complex structure of high-voltage power grids,the size of the ring network staggered situation is common,making the overall protection of the more complex calculation,especially the calculation of the value of the need to meet a variety of operating methods,and the calculation of the auxiliary increasing coefficient is very important in the calculation. In this paper,the characteristics of the existing high-voltage ring network,proposed a backtracking method of calculating the auxiliary increasing coefficient in ring network,through the protection of the ring circuit search can be different series of ring network,a comprehensive consideration of different series ring network of various harsh running and compared with the traditional calculation auxiliary increasing coefficient method. It is concluded that the backtracking algorithm can quickly and accurately find the auxiliary increasing coefficient of the more extreme operation. Finally,the effectiveness of the proposed method is verified by an example of the grid,and the complexity of the proposed method is analyzed,and the speediness of the proposed method is verified.
With the increasingly complex structure of high-voltage power grids,the size of the ring network staggered situation is common,making the overall protection of the more complex calculation,especially the calculation of the value of the need to meet a variety of operating methods,and the calculation of the auxiliary increasing coefficient is very important in the calculation. In this paper,the characteristics of the existing high-voltage ring network,proposed a backtracking method of calculating the auxiliary increasing coefficient in ring network,through the protection of the ring circuit search can be different series of ring network,a comprehensive consideration of different series ring network of various harsh running and compared with the traditional calculation auxiliary increasing coefficient method. It is concluded that the backtracking algorithm can quickly and accurately find the auxiliary increasing coefficient of the more extreme operation. Finally,the effectiveness of the proposed method is verified by an example of the grid,and the complexity of the proposed method is analyzed,and the speediness of the proposed method is verified.
引文
[1]高旭,杜丽艳,李雪冬,等.基于改进遗传算法的继电保护一体化图形拼接厂站最优布局[J].电力系统保护与控制.2015,43(10):74-78.GAO Xu,DU Liyan,LI Xuedong,et al.Substation locating method in integrated relay graph splicing based on improved genetic algorithm[J].Power System Protection and Control,2015,43(10):74-78.
[2]罗彬,刘本希,王健,等.网省地一体化电网运行方式可视化交互策略及实践[J].电网技术.2016,40(10):3228-3235.LUO Bin,LIU Benxi,WANG Jian,et al.Visual interactive strategy and its practice of operation modes between regional,provincial and district power grids[J].Power System Technology.2016,40(10):3228-3235.
[3]余江,陈朝晖,高宏慧.南方电网继电保护一体化监控系统建设[J].南方电网技术.2014,8(01):1-7.YU Jiang,CHEN Chaohui,GAO Honghui.Construction of integrated protection relays monitoring and control system in China Southern Power Grid[J].Southern Power System Technology,2014,8(01):1-7.
[4]孟晓丽,唐巍,刘永梅,等.大规模复杂配电网三相不平衡潮流并行计算方法[J].电力系统保护与控制.2015,43(13):45-51.MENG Xiaoli,TANG Wei,LIU Yongmei,et al.Parallel computing of three-phase unbalanced power flow in large-scale complex distribution network[J].Power System Protection and Control,2015,43(13):45-51.
[5]CAO GC.A versatile method to calculate faults for protective relaying setting[J].Power System Technology,2002,26(12):24-29.
[6]乐全明,郁惟镛,吕飞鹏,等.多环电网方向保护整定计算中形成有向简单回路的新方法[J].中国电机工程学报[J].2005,25(08):36-40.YUE Quanming,YU Weiyong,LV Feipeng,et al.A new algorithm to determine directional simple loops during setting and calculating of directional relays protection in a multi-loop electric power network[J].Proceedings of The Chinese Society for Electrical Engineering[J].2005,25(08):36-40.
[7]冷贵峰,方胜文,王荣,等.继电保护定值在线整定软件开发与实践[J].电力大数据.2018,21(05):78-81.LENG Guifeng,FANG Shengwen,WANG Rong,et al.Development and application of on-Line setting software for relay protection[J].Power Systems and Big Data,2018,21(05):78-81.
[8]盛海华,赵纪元,奚洪磊.适应智能电网继电保护定值的在线管控方案[J].电力系统自动化.2016,40(15):154-158.SHENG Haihua,ZHAO Jiyuan,XI Honglei.On-line management and control scheme for relay protection settings of smart grid[J].Automation of Electric Power Systems.2016,40(15):154-158.
[9]王友怀,杨增力,周虎兵,等.继电保护定值在线校核及预警系统开发与应用[J].电力系统及其自动化学报.2015,27(06):91-97.WANG Youhuai,YANG Zengli,ZHOU Hubing,et al.Development and application of online verification and early-warning system for protective relay[J].Proceedings of the CSU-EPSA.2015,27(06):91-97.
[10]邓丰强,吕飞鹏,廖小君,等.考虑系统运行方式的继电保护在线智能校核[J].电力系统及其自动化学报.2013,25(05):71-76.DENG Fengqiang,LV Feipeng,LIAO Xiaojun,et al.Online intelligent verification of relay protection considering system operation mode[J].Proceedings of the CSU-EPSA.2013,25(05):71-76.
[11]夏成军,谢奕,邱桂华.可视化地铁供配电系统继电保护整定软件的开发[J].电力系统保护与控制.2011,39(10):116-120.XIA Chengjun,XIE Yi,QIU Guihua.Development of visual relay protection setting calculation software for metro power supply system[J].Power System Protection and Control.2011,39(10):116-120.
[12]蒋科,吕飞鹏,郭亮,等.基于拓扑辨识的电力系统运行方式组合方法[J].电网技术.2010,34(02):76-79.JIANG Ke,LV Feipeng,GUO Liang,et al.Combination method for power system operation modes based on Topology identification[J].Power System Technology.2010,34(02):76-79.
[13]周文越,吕飞鹏,李鹤.基于遗传算法的运行方式组合方法[J].电力系统保护与控制.2013,41(10):51-55.ZHOU Wenyue,LV Feipeng,LI He.Method for the combination of power system operation mode based on genetic algorithm[J].Power System Protection and Control,2013,41(10):51-55.
[14]杨雄平,段献忠,石东源.基于环网电气耦合指标运行方式组合方法[J].电力系统自动化.2005,29(23):64-68.YANG Xiongping,DUAN Xianzhong,SHI Dongyuan.Method for operation mode combination based on electric coupling of mesh network[J].Automation of Electric Power Systems.2005,29(23):64-68.
[15]程小平.配合系数与网络结构关系的研究[J].电力系统自动化,2000,24(09):52-55.CHENG Xiaoping.Study on Relation between Network Topology and Cooperation Coefficient[J].Automation of Electric Power Systems.2000,24(09):52-55.
[16]陈永琳.电力系统继电保护的计算机整定计算[M].北京:中国电力出版社,1995.
[17]康鹏,刘蔚,林成,等.一种基于柔性直流技术的送端电网电磁环网解环方法[J].广东电力,2016,29(11):86-92.KANG Peng,LIU Wei,LIN Cheng,et al.A method for opening electromagnetic loop network of sending-end power grid based on VSC HVDC technology[J].Guangdong Electric Power,2016,29(11):86-92.
[18]胡金,辛也平.500 k V/220 k V电磁环网运行分析[J].内蒙古电力技术,2017,35(03):97-100.HU Jin,XIN Yeping.Running analysis of 500 k V/220 k V electromagnetic loop network[J].Inner Mongolia Electric Power,2017,35(03):97-100.
[2]罗彬,刘本希,王健,等.网省地一体化电网运行方式可视化交互策略及实践[J].电网技术.2016,40(10):3228-3235.LUO Bin,LIU Benxi,WANG Jian,et al.Visual interactive strategy and its practice of operation modes between regional,provincial and district power grids[J].Power System Technology.2016,40(10):3228-3235.
[3]余江,陈朝晖,高宏慧.南方电网继电保护一体化监控系统建设[J].南方电网技术.2014,8(01):1-7.YU Jiang,CHEN Chaohui,GAO Honghui.Construction of integrated protection relays monitoring and control system in China Southern Power Grid[J].Southern Power System Technology,2014,8(01):1-7.
[4]孟晓丽,唐巍,刘永梅,等.大规模复杂配电网三相不平衡潮流并行计算方法[J].电力系统保护与控制.2015,43(13):45-51.MENG Xiaoli,TANG Wei,LIU Yongmei,et al.Parallel computing of three-phase unbalanced power flow in large-scale complex distribution network[J].Power System Protection and Control,2015,43(13):45-51.
[5]CAO GC.A versatile method to calculate faults for protective relaying setting[J].Power System Technology,2002,26(12):24-29.
[6]乐全明,郁惟镛,吕飞鹏,等.多环电网方向保护整定计算中形成有向简单回路的新方法[J].中国电机工程学报[J].2005,25(08):36-40.YUE Quanming,YU Weiyong,LV Feipeng,et al.A new algorithm to determine directional simple loops during setting and calculating of directional relays protection in a multi-loop electric power network[J].Proceedings of The Chinese Society for Electrical Engineering[J].2005,25(08):36-40.
[7]冷贵峰,方胜文,王荣,等.继电保护定值在线整定软件开发与实践[J].电力大数据.2018,21(05):78-81.LENG Guifeng,FANG Shengwen,WANG Rong,et al.Development and application of on-Line setting software for relay protection[J].Power Systems and Big Data,2018,21(05):78-81.
[8]盛海华,赵纪元,奚洪磊.适应智能电网继电保护定值的在线管控方案[J].电力系统自动化.2016,40(15):154-158.SHENG Haihua,ZHAO Jiyuan,XI Honglei.On-line management and control scheme for relay protection settings of smart grid[J].Automation of Electric Power Systems.2016,40(15):154-158.
[9]王友怀,杨增力,周虎兵,等.继电保护定值在线校核及预警系统开发与应用[J].电力系统及其自动化学报.2015,27(06):91-97.WANG Youhuai,YANG Zengli,ZHOU Hubing,et al.Development and application of online verification and early-warning system for protective relay[J].Proceedings of the CSU-EPSA.2015,27(06):91-97.
[10]邓丰强,吕飞鹏,廖小君,等.考虑系统运行方式的继电保护在线智能校核[J].电力系统及其自动化学报.2013,25(05):71-76.DENG Fengqiang,LV Feipeng,LIAO Xiaojun,et al.Online intelligent verification of relay protection considering system operation mode[J].Proceedings of the CSU-EPSA.2013,25(05):71-76.
[11]夏成军,谢奕,邱桂华.可视化地铁供配电系统继电保护整定软件的开发[J].电力系统保护与控制.2011,39(10):116-120.XIA Chengjun,XIE Yi,QIU Guihua.Development of visual relay protection setting calculation software for metro power supply system[J].Power System Protection and Control.2011,39(10):116-120.
[12]蒋科,吕飞鹏,郭亮,等.基于拓扑辨识的电力系统运行方式组合方法[J].电网技术.2010,34(02):76-79.JIANG Ke,LV Feipeng,GUO Liang,et al.Combination method for power system operation modes based on Topology identification[J].Power System Technology.2010,34(02):76-79.
[13]周文越,吕飞鹏,李鹤.基于遗传算法的运行方式组合方法[J].电力系统保护与控制.2013,41(10):51-55.ZHOU Wenyue,LV Feipeng,LI He.Method for the combination of power system operation mode based on genetic algorithm[J].Power System Protection and Control,2013,41(10):51-55.
[14]杨雄平,段献忠,石东源.基于环网电气耦合指标运行方式组合方法[J].电力系统自动化.2005,29(23):64-68.YANG Xiongping,DUAN Xianzhong,SHI Dongyuan.Method for operation mode combination based on electric coupling of mesh network[J].Automation of Electric Power Systems.2005,29(23):64-68.
[15]程小平.配合系数与网络结构关系的研究[J].电力系统自动化,2000,24(09):52-55.CHENG Xiaoping.Study on Relation between Network Topology and Cooperation Coefficient[J].Automation of Electric Power Systems.2000,24(09):52-55.
[16]陈永琳.电力系统继电保护的计算机整定计算[M].北京:中国电力出版社,1995.
[17]康鹏,刘蔚,林成,等.一种基于柔性直流技术的送端电网电磁环网解环方法[J].广东电力,2016,29(11):86-92.KANG Peng,LIU Wei,LIN Cheng,et al.A method for opening electromagnetic loop network of sending-end power grid based on VSC HVDC technology[J].Guangdong Electric Power,2016,29(11):86-92.
[18]胡金,辛也平.500 k V/220 k V电磁环网运行分析[J].内蒙古电力技术,2017,35(03):97-100.HU Jin,XIN Yeping.Running analysis of 500 k V/220 k V electromagnetic loop network[J].Inner Mongolia Electric Power,2017,35(03):97-100.