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Assessment of Line Energization Transients when Increasing Cable Length in 380 kV Power Grids

Conference Paper (2016)
Author(s)

Hossein Khalilnezhad (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Marjan Popov (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Lou van der Sluis (TU Delft - Electrical Engineering, Mathematics and Computer Science)

JPW de Jong (TenneT TSO B.V.)

N Nenadovic (TenneT TSO B.V.)

JA Bos (TenneT TSO B.V.)

Research Group
Intelligent Electrical Power Grids
DOI related publication
https://doi.org/10.1109/POWERCON.2016.7753908 Final published version
More Info
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Publication Year
2016
Language
English
Research Group
Intelligent Electrical Power Grids
Pages (from-to)
1-6
ISBN (print)
978-1-4673-8848-1
Event
2016 IEEE International Conference on Power Systems Technology (POWERCON) (2016-09-28 - 2016-10-01), Wollongong, Australia
Downloads counter
221

Abstract

Integration of long EHV XLPE underground cables in traditionally OHL-based transmission systems can result in abnormal transients caused by large cable shunt capacitance. Transients associated with switching of long cables may result in severe temporary or transient overvoltages. This paper investigates energization transients related to the installation of long 380 kV cables in transmission systems. Voltages and currents at multiple locations were analyzed in the time-domain after energization of different cable lengths in a 80 km mixed OHL-cable connection in the future Dutch 380 kV grid. Moreover, zero-missing phenomenon, as one of the likely events during energization transients of shunt compensated cables, and its countermeasures are discussed. The study comprises time-domain simulations in PSCAD/EMTDC environment,
where an accurate distributed frequency-dependent parameter model of the complete Dutch 380 kV grid is developed.