基于多支路切除和背离路径的潮流转移识别算法  

Recognition Algorithm of Power Flow Transferring Based on Multi-branch Removal and Deviation Path

作　　者：任建文[1] 何培成 REN Jianwen HE Peicheng(State Key Laboratory of Ahernate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Baoding 071003, China)

机构地区：[1]华北电力大学新能源电力系统国家重点实验室,河北保定071003

出　　处：《华北电力大学学报（自然科学版）》2016年第6期1-6,67,共7页Journal of North China Electric Power University：Natural Science Edition

基　　金：国家自然科学基金资助项目(50837002)

摘　　要：给出了一种基于多支路切除和路径搜索的潮流转移快速识别算法。该方法根据故障支路切除后的潮流转移特征,首先深入分析了转移到非故障线路上的潮流组成,其次在一定的节点深度内搜索切除支路两端节点间的前K条最短路径集,最终识别出受潮流转移影响较大的线路构成输电断面。文中在切除支路的潮流转移估算、K值选取和断面判据方面作了重要改进,以适应于发生多支路切除情况下潮流转移的识别;重新建立了一种K的取值方案,并采用背离路径算法确定最短路径集,在减少分析计算量的同时有效避免了输电断面漏选问题。IEEE30节点系统的仿真验证了本文算法的有效性。A recognition algorithm of power flow transferring based on multi-branch removal and path research is proposed in this paper. Firstly, an in-depth analysis on the component of power flow transferring on the non-faulted lines is presented on the basis of power flow transferring＇ s characteristics. Secondly, the former shortest paths represented by the letter K between two nodes of removed lines would be found within a certain node depth. Finally, the transmission sections whose lines are greatly influenced by the power flow transferring within the above paths are recognized. Considerable improvements of estimation of power flow transferring, optimal selection of the value of K and criterion for transmission section are put forward which are suitable for recognition of power flow transferring with muhi-branch removal. Moreover, a method to ascertain the value of K is reinstituted and the shortest paths are determined based on deviation path which reduces calculated quantities and effectively avoids miss-selection of transmission section. The simulation results of IEEE30 node system verified the effectiveness of the proposed algorithm.

关 键 词：电力系统 潮流转移 输电断面 路径搜索 背离路径 

分 类 号：TM711[电气工程—电力系统及自动化]