基于配电网等效解耦的配电网故障定位算法
|
摘要
分布式发电(DG)接入配电网后,配电系统网络由单电源辐射状变成了含分布式电源供电的多电源复杂网络,传统的故障区段定位算法不再适用。提出了一种基于配电网拓扑结构等效解耦的新型故障区段定位算法,首先基于配电网拓扑分析的邻接矩阵D,将配电网等效解耦为数个树干网的组合。然后对单个树干网,根据馈线终端设备(FTU)过流信息构成故障矩阵,利用新型的故障区段定位方法,进行故障区段的准确定位。算法基于配电网拓扑结构的等效解耦,不仅能够定位含DG配电网的单一故障,也能定位多重故障。同时解耦后的树干网,矩阵定位算法阶数明显降低,算法简单。通过对算法的算例分析,验证了算法的有效性。
After distributed generation(DG) access to the distribution network, the distribution system network in its single-power radiation becomes a complex multiple-power network containing distributed power supply, and traditional algorithm for fault section localization is not suitable any longer. This paper presented a new fault section localization algorithm based on equivalent decoupling of the topological structure of the distributed network. Firstly, adjacent matrix D based on the topological analysis of the distribution network decoupled the distribution network equivalently to a combination of a number of trunk networks. Then, for each trunk network, a failure matrix was constructed according to the over current information of the feeder terminal unit(FTU), and accurate localization of fault section was completed in the novel fault section localization method. Equivalent decoupling based on the topological structure of the distribution network could not only locate a single fault containing DG distribution network, but also locate multiple failures. Furthermore, decoupled trunk networks had much less orders of the matrix localization algorithm and made it simple. Analysis of calculation examples of the proposed algorithm verified its validity.
After distributed generation(DG) access to the distribution network, the distribution system network in its single-power radiation becomes a complex multiple-power network containing distributed power supply, and traditional algorithm for fault section localization is not suitable any longer. This paper presented a new fault section localization algorithm based on equivalent decoupling of the topological structure of the distributed network. Firstly, adjacent matrix D based on the topological analysis of the distribution network decoupled the distribution network equivalently to a combination of a number of trunk networks. Then, for each trunk network, a failure matrix was constructed according to the over current information of the feeder terminal unit(FTU), and accurate localization of fault section was completed in the novel fault section localization method. Equivalent decoupling based on the topological structure of the distribution network could not only locate a single fault containing DG distribution network, but also locate multiple failures. Furthermore, decoupled trunk networks had much less orders of the matrix localization algorithm and made it simple. Analysis of calculation examples of the proposed algorithm verified its validity.
引文
[1] 胡非,刘志刚,何士玉,等.一种基于模型的配电网故障诊断搜索算法[J].电力自动化设备,2013,33(1):81-90.
[2] 翁天蓝,刘开培,刘晓莉,等.复杂配电网故障定位的链表法[J].电工技术学报,2009,24(5):190-196.
[3] 黄佳乐,杨冠鲁.配电网故障区间定位的改进矩阵算法 [J].电力系统保护与控制,2014,42(11):41-45.
[4] 唐金锐,尹项根,张哲,等.配电网故障自动定位技术研究综述[J].电力自动化设备,2013,33(5):7-13.
[5] 罗梅,杨洪耕.配电网故障定位的一种改进通用矩阵算法[J].电力系统保护与控制,2012,40(5):64-68.
[6] DE BRITTO T M,MORAIS D R,MARIN M A,et al.Distributed generation impacts on the coordination of protection systems in distribution networks[C] // Transmission and Distribution Conference and Exposition,Latin America,2004.
[7] 刘会家,李奔,廖小兵,等.计及分布式电源的配电网前推回代潮流计算[J].水电能源科学,2016,34(6):213-216.
[8] 吴宁,许扬,陆于平.分布式发电条件下配电网故障区段定位新算法[J].电力系统自动化,2009,33(14):77-82.
[9] 唐婓,陆玉平.分布式发电系统故障定位新算法[J].电力系统保护与控制,2010,38(20):62-68.
[10] 刘蓓,汪沨,陈春,等.和声算法在含DG配电网故障定位中的应用[J].电工技术学报,2013,28(5):280-284.
[11] 徐俊明.图论及其应用[M].合肥:中国科学技术大学出版社,2010.
[2] 翁天蓝,刘开培,刘晓莉,等.复杂配电网故障定位的链表法[J].电工技术学报,2009,24(5):190-196.
[3] 黄佳乐,杨冠鲁.配电网故障区间定位的改进矩阵算法 [J].电力系统保护与控制,2014,42(11):41-45.
[4] 唐金锐,尹项根,张哲,等.配电网故障自动定位技术研究综述[J].电力自动化设备,2013,33(5):7-13.
[5] 罗梅,杨洪耕.配电网故障定位的一种改进通用矩阵算法[J].电力系统保护与控制,2012,40(5):64-68.
[6] DE BRITTO T M,MORAIS D R,MARIN M A,et al.Distributed generation impacts on the coordination of protection systems in distribution networks[C] // Transmission and Distribution Conference and Exposition,Latin America,2004.
[7] 刘会家,李奔,廖小兵,等.计及分布式电源的配电网前推回代潮流计算[J].水电能源科学,2016,34(6):213-216.
[8] 吴宁,许扬,陆于平.分布式发电条件下配电网故障区段定位新算法[J].电力系统自动化,2009,33(14):77-82.
[9] 唐婓,陆玉平.分布式发电系统故障定位新算法[J].电力系统保护与控制,2010,38(20):62-68.
[10] 刘蓓,汪沨,陈春,等.和声算法在含DG配电网故障定位中的应用[J].电工技术学报,2013,28(5):280-284.
[11] 徐俊明.图论及其应用[M].合肥:中国科学技术大学出版社,2010.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |