NDLI: Synchrophasor based thermal overhead line monitoring considering line spans and thermal transients

Content Provider	IET Digital Library
Author	Kubis, Andreas Rehtanz, Christian
Abstract	A synchrophasor-based thermal line monitoring scheme enabling the measurement of line spans and therewith temperature profiles is presented. Further, the measurement of thermal transients with synchrophasors has become feasible by incorporating non-steady state heat equations and local weather data. The proof of concept is executed with an electro-thermal line modelling approach in combination with sensitivity analyses of various power flow scenarios, data processing time steps and weather updating rates. It has been shown, that the relative measurement error of this method is ±0.2% at ideal thermal static and ±2.0% at ideal thermal transient conditions for various load currents with reference to the original temperature. Finally, the accuracy at highly volatile weather conditions as well as the suitability for practical implementation is discussed.
Starting Page	1232
Ending Page	1239
Page Count	8
ISSN	17518687
Volume Number	10
e-ISSN	17518695
Issue Number	Issue 5, Apr (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/10/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2015.0852
Journal	IET Generation, Transmission & Distribution
Publisher Date	2016-04-07
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Data Processing Time Steps Electro thermal Line Modeling Approach Ideal Thermal Static Condition Ideal Thermal Transient Condition Line Span Measurement Load Flow Local Weather Data Nonsteady-state Heat Equation Overhead Power Line Phasor Measurement Power Flow Scenario Power Overhead Line Power System Measurement And Metering Relative Measurement Error Sensitivity Analysis Synchrophasor-based Thermal Overhead Line Monitoring Temperature Profile Thermal Transient Measurement Thermal Variables Measurement Weather Updating Rate
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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