ANALYTICAL SYNCHRONIZATION OF TWO-END MEASUREMENTS FOR TRANSMISSION LINE PARAMETERS ESTIMATION AND FAULT LOCATION

Abstract

This paper presents a new setting-free approach to synchronization of two-end current and voltage unsynchronized measurements. Authors propose new non-iterative algorithm processing three-phase currents and voltages measured under normal steady state load condition of overhead line. Using such synchronization the line parameters can be estimated and then precise fault location can be performed. The presented algorithm has been tested with ATP-EMTP software by generating great number of simulations with various sets of line parameters proving its usefulness for overhead lines up to 200km length.

Keywords

• Power transmission line
• two-end measurements
• analytical synchronization
• line parameters
• estimation.

References

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19. Biographies : Pawel Dawıdowskı received his M.Sc. in Electrical Eng. from the Wroclaw University of Technology (WrUT) in 2009. Then for two years he was Ph.D. student at the Faculty of Electrical Engineering of this University. Presently he is with ABB Corporate Research Center in Krakow, Poland. Fault location and simulation of power system transients are in the scope of his research interests. Jan Izykowski received his M.Sc., Ph.D. and D.Sc. degrees from the Faculty of Electrical Engineering of Wroclaw University of Technology (WrUT) in 1973, 1976 and in 2001, respectively. In 2009 he was granted with a scientific title of a professor by the President of the Republic of Poland. Since 1973 he has been with Institute of Electrical Power Engineering of the WrUT where he is presently a director of this Institute. His research interests are in power system transients simulation, power system protection and control, and fault location. He is a holder of 25 international patents and authored more than 200 technical papers. Ahmet Nayir was graduated from Yildiz Technical University (İstanbul, Turkey) with honor diploma in the field of Electrical Engineering (B.Sc. degrees) in 1991. He received the Ph.D. degree in Physical Institute of Azerbaijan Science Academy in 2002. Nayir has been at Fatih University (Istanbul, Turkey), where he is currently an assistance Professor. From September 2009 to May 2010 Ahmet Nayir worked as visiting scholar in Electrical Engineering Technology Department of Industrial Technology University of Northern Iowa. From May to October 2010 Ahmet Nayir worked as visiting scholar in Wroclaw University of Technology Institute of Electrical Power Engineering, Wroclaw- Poland. His research interests are focused on energy generation, control, analysis and applications in power systems.