南方电网技术2017，Vol.11Issue(9)：36-40,47,6.DOI:10.13648/j.cnki.issn1674-0629.2017.09.006
交叉跨越两回输电线路故障的等值机电暂态仿真方法
Equivalent Electromechanical Transient Simulation Method for the Fault of Two Crossing Transmission Lines
曾勇刚 1洪潮 1张帆 1唐旭 2陈礼昕2
作者信息
- 1. 直流输电技术国家重点实验室(南方电网科学研究院) , 广州510663
- 2. 华南理工大学电力学院, 广州510641
- 折叠
摘要
Abstract
With the expansion of power grid scale, transimission corridor resources become more and more scarce, the possibility of fault occurrence for two crossing transmission lines is intensively increasing.This paper presents a new electromechanical transient sim-ulation method for this kind of fault.Firstly, elimination processing are carried out for both the faulty order network voltage equation and the boundary condition equation in order to obtain additional positive sequence impedance matrix of fault node, and the matrix is processed symmetrically.Then the additional positive sequence impedance matrix of fault node is extended to faulty line nodes.Ac-cording to the additional positive sequence impedance matrix of faulty line nodes, corresponding transient data card is generated and e-lectromechanical transient simulation method for two crossing transmission lines is proposed.Finally, by using the data of an actual power grid, electromechanical transient simulation is carried out for the fault of two crossing transmission line and ground fault of two crossing transmission line.The simulation results verify the correctness of the proposed method.关键词
机电暂态仿真/交叉跨越输电线路/故障Key words
electromechanical transient simulation/crossing transmission lines/fault分类
信息技术与安全科学引用本文复制引用
曾勇刚,洪潮,张帆,唐旭,陈礼昕..交叉跨越两回输电线路故障的等值机电暂态仿真方法[J].南方电网技术,2017,11(9):36-40,47,6.
