Parameter Self-Adaptive Fault Location of Four-Parallel Transmission Lines on the Same Tower
In order to eliminate the effects of electromagnetic coupling and parameters uncertainty of four-parallel transmission lines on the same tower for fault location,this paper proposes a novel parameter self-adaptive fault location scheme of four-parallel transmission lines on the same tower.Firstly,a decoupling method of four-parallel transmission lines is proposed to eliminate the effects of electromagnetic coupling of fourparallel transmission lines.Secondly,constructs a set of linear parameters self-adaptive equations based on the parallel component before fault to obtain the mathematical expressions of line parameters.Finally,on the basis of decoupling method and transmission line parameters self-adaptive method,the fault location observation equations based on the circulation components after fault are established to realize a dataindependent fault location scheme of four-parallel transmission lines.As a set of linear formula for the line parameters is derived and the mathematical expression of fault location is given,the proposed method has high computing speed and precision.In the end,using ATP/EMTP,a four-parallel transmission line model is constructed for simulation.The analysis results demonstrate that the proposed fault location scheme is accurate.
four-parallel transmission lines on the same tower parameter self-adaptive:fault location:frequency domain
Yuansheng Liang Jingmei Guo Gang Wang
College of Electrical Engineering South China University of Technology Guangzhou,China,510640
国际会议
威海
英文
881-884
2011-07-06（万方平台首次上网日期，不代表论文的发表时间）