NDLI: Time-domain single-ended fault location method that does not need remote-end system information

Content Provider	IET Digital Library
Author	Zhang, Chenhao Song, Guobing Yang, Liming Sun, Zhongyu
Abstract	This study presents a single-ended fault location method that does not need the information of the remote-end system. As the foundation of the proposed method, the fault location equations under different fault types are derived based on the fault loops. The fault distance, fault impedance, and equivalent resistance and inductance of the remote-end system are considered as the unknowns of the fault location equation. Then the equation can be solved using the Gauss-Newton method, by which the four unknowns can be obtained. Therefore, the proposed method is not sensitive to the fault impedance and the system parameters. A two-terminal 500 kV ac transmission line test system is built in PSCAD to verify the proposed method. Numerous simulation data of faults of different fault distances, fault impedances, and fault types verify the accuracy and robustness of the proposed method. The proposed method is a time-domain method that can locate the fault using 5 ms data after the faults.
Starting Page	284
Ending Page	293
Page Count	10
ISSN	17518687
Volume Number	14
e-ISSN	17518695
Issue Number	Issue 2, Jan (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/14/2
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.0647
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-11-13
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	A.c. Transmission Different Fault Distances Fault Distance Fault Impedance Fault Location Fault Location Equation Fault Location Method Fault Loops Gauss-Newton Method Interpolation And Function Approximation Newton Method Numerical Analysis Power System Protection Power Transmission Fault Power Transmission Line Remote-end System Information System Parameter Time 5.0 Ms Time Domain Analysis Time-domain Single-ended Time-domain Method Two-terminal AC Transmission Line Test System Voltage 500 KV
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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