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Simulation on Calculation Accuracy of Three Methods for Live Line Measuring the Parameters of Transmission Lines with Mutual Inductance
Dezhou Power Supply Company, Shandong Electric Power Group Co., Dezhou, China
Dezhou Power Supply Company, Shandong Electric Power Group Co., Dezhou, China
Dezhou Power Supply Company, Shandong Electric Power Group Co., Dezhou, China
Dezhou Power Supply Company, Shandong Electric Power Group Co., Dezhou, China
Dezhou Power Supply Company, Shandong Electric Power Group Co., Dezhou, China
School of Electrical Engineering, Wuhan University, Wuhan, China
School of Electrical Engineering, Wuhan University, Wuhan, China
School of Electrical Engineering, Wuhan University, Wuhan, China
School of Electrical Engineering, Wuhan University, Wuhan, China
- 1 Dezhou Power Supply Company, Shandong Electric Power Group Co., Dezhou, China
- 2 Dezhou Power Supply Company, Shandong Electric Power Group Co., Dezhou, China
- 3 Dezhou Power Supply Company, Shandong Electric Power Group Co., Dezhou, China
- 4 Dezhou Power Supply Company, Shandong Electric Power Group Co., Dezhou, China
- 5 Dezhou Power Supply Company, Shandong Electric Power Group Co., Dezhou, China
- 6 School of Electrical Engineering, Wuhan University, Wuhan, China
- 7 School of Electrical Engineering, Wuhan University, Wuhan, China
- 8 School of Electrical Engineering, Wuhan University, Wuhan, China
- 9 School of Electrical Engineering, Wuhan University, Wuhan, China
Energy and Power Engineering·Volume 05 (2013)·Pages 1435–1439·Published 30 June 2013·DOI10.4236/epe.2013.54B272
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Abstract
Live line measurement methods can reduce the loss of power outages and eliminate interference. There are three live line measurement methods including integral method, differential method and algebraic method. A simulation model of two coupled parallel transmission lines spanning on the same towers is built in PSCAD and the calculation errors of these three methods are compared with different sampling frequencies by using of Matlab. The effect of harmonic on calculation is also involved. The simulation results indicate that harmonic has the least effect on the algebraic method which provides stable result and small error.
KeywordsLines with Mutual InductanceZero Sequence ParametersLive Line MeasurementAlgebraic MethodDifferential MethodIntegral Method
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