KIEE - The Transactions of the Korean Institute of Electrical Engineers

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The Transactions of the Korean Institute of Electrical Engineers

The Transactions of the Korean Institute of Electrical Engineers

ISO Journal TitleTrans. Korean. Inst. Elect. Eng.

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Title	A Study on IEC 61850-Based Time Synchronization Error Estimation between Substations using Estimated Voltage / Current Phasor of Adjacent Substation considering Transmission Line Constants
Authors	김민수(Min-Soo Kim) ; 강상희(Sang-Hee Kang)
DOI	https://doi.org/10.5370/KIEE.2021.70.4.593
Page	pp.593-598
ISSN	1975-8359
Keywords	IEC 61850; GPS error; Time sync error estimation; TL constants estimation; Voltage/Current estimation
Abstract	Time synchronization error between adjacent substations may cause the mal-operation on IEDs. To solve this problem, this paper assumes a situation where time synchronization error occurs between substations due to GPS errors, etc., and estimates the changing transmission line constants due to weather, and uses them to estimate the voltage/current phasor of adjacent substations. The estimated voltage/current phasor of adjacent substation are compared with the IEC 61850-based received voltage/current phasor of adjacent substation to estimate the time synchronization error between substations

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