NDLI: Novel technique for transmission line parameters estimation using synchronised sampled data

Content Provider	IET Digital Library
Author	Bendjabeur, Abdelhamid Kouadri, Abdelmalek Mekhilef, Saad
Abstract	Accurate transmission line parameters values are of high importance in setting protection relays and rigorous locating faults that may occur along the transmission network. For this purpose, the work reported in this study presents a new technique for the delicate determination of transmission lines parameters that are uniformly distributed along the line length. The developed technique is able to approximate the steady-state profiles for the transmission line voltage and current as a function of time and line length by given sets of polynomials that, in turn, are substituted in model equations. Synchronised time-domain data, recorded from both line terminals, are utilised as boundary conditions for the distributed-parameter transmission line model. The well-known Galerkin method is adopted to transform the line model into a system of non-linear algebraic equations to be solved. This system of algebraic equations is converted to residuals that are consequently regrouped in a cost function to be optimised. Thereby, the series resistance, series inductance and the shunt capacitance per line length are the parameters minimising the cost function. Both simulations and calculation are performed with MATLAB software. The obtained results show the effectiveness and accuracy of the new approach.
Starting Page	506
Ending Page	515
Page Count	10
ISSN	17518687
Volume Number	14
e-ISSN	17518695
Issue Number	Issue 3, Feb (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/14/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.0702
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-12-03
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Boundary Condition Distributed-parameter Transmission Line Fault Location Galerkin Method Line Terminals Linear Algebra Mathematical Analysis MATLAB Software Nonlinear Algebraic Equation Numerical Analysis Parameter Estimation Power System Protection Power Transmission Cables Power Transmission Fault Power Transmission Line Series Inductance Series Resistance Shunt Capacitance Synchronisation Synchronised Sampled Data Synchronised Time-domain Data Time Domain Analysis Transmission Line Current Transmission Line Parameter Estimation Transmission Line Voltage Transmission Network
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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