scholarly journals Unsynchronized fault location on untransposed transmission lines with fully distributed parameter model considering line parameter uncertainties

2022 ◽  
Vol 202 ◽  
pp. 107622
Author(s):  
Dian Lu ◽  
Yu Liu ◽  
Dayou Lu ◽  
Binglin Wang ◽  
Xiaodong Zheng
Keyword(s):  
Transmission Lines ◽  
Fault Location ◽  
Distributed Parameter ◽  
Parameter Uncertainties ◽  
Distributed Parameter Model ◽  
Line Parameter

A New Single-Ended Fault Location Method Based on Bergeron Model

2012 ◽  
Vol 433-440 ◽  
pp. 2939-2944
Author(s):  
Jian Bo Xin ◽  
Xiang Ning Lin ◽  
Zhi Qian Bo
Keyword(s):  
Transmission Line ◽  
Phase Angle ◽  
Transmission Lines ◽  
Fault Location ◽  
Distributed Parameter ◽  
Phase Voltage ◽  
Location Method ◽  
Distributed Parameter Model ◽  
Location Algorithm ◽  
The Impact

On EHV transmission lines, the impact of distributed capacitance is necessary to be considered in case of fault location. A novel fault location method for single-phase grounded fault of transmission lines is presented based on the distributed parameter model of transmission line. In this method only the voltage and current of single end is used. The residual phase voltage at the fault point should have the same phase angle as the current through fault branch due to the pure resistive characteristics of the fault path impedance. By virtue of searching the minimum phase angle differ-ence between the phase voltage along the transmission line and the fault-component current meas-ured at the side equipped with protection, the fault distance can be located. ATP simulations are used to generate data that are supplied as inputs to the fault location algorithm.

A New PMU-Based Fault Location Algorithm for Three-Terminal

2013 ◽  
Vol 634-638 ◽  
pp. 3925-3929
Author(s):  
Hong Yu Shen ◽  
Wen Jun Zhang ◽  
Yu Bo Duan ◽  
Jian Jun Xu
Keyword(s):  
Fault Zone ◽  
Transmission Lines ◽  
Fault Location ◽  
Measurement Data ◽  
Data Synchronization ◽  
Distributed Parameter ◽  
Matlab Simulation ◽  
Location Method ◽  
Terminal System ◽  
Location Algorithm

Existing two-terminal fault location method can not be directly applied to the three-terminal transmission lines, this paper presents a new PMU-based fault location algorithm for three-terminal transmission lines. The development of the algorithm takes advantage of PMU measurement data synchronization, uses distributed parameter line model, first of all judging the fault zone after a failure, uses Thevenin's Theorem to merge the non-slip fault, so the three-terminal system is simplified the two-terminal system, Then we can use the two-terminal fault location principle of fault location. Through MATLAB simulation shows the correctness of the algorithm.

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