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Downstream network modeling for switching transients in EHV networks containing cables

Barakou, Fani (author)
Eindhoven University of Technology
Bollen, Math (author)
Luleå tekniska universitet,Energivetenskap
Mousavi-Gargari, S. (author)
TenneT TSO BV, Arnhem
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Wouters, P.A.A.F. (author)
Eindhoven University of Technology
Steenis, E.F. (author)
Eindhoven University of Technology
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 (creator_code:org_t)
Piscataway, NJ : Institute of Electrical and Electronics Engineers (IEEE), 2017
2017
English.
In: IEEE PES PowerTech Manchester 2017: towards and beyond sustainable energy systems, 2017. - Piscataway, NJ : Institute of Electrical and Electronics Engineers (IEEE). - 9781509042371
  • Conference paper (peer-reviewed)
Abstract Subject headings
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  • For the study of switching transients in Extra High Voltage (EHV) networks it is common practice to model a relatively small part of the EHV network. The downstream network is either disregarded or modeled as a parallel RC or RL circuit, based on the powerflow, directly at the secondary side of the transmission transformer. In this paper an investigation for the extent and model type of the downstream network (below 380 kV) is performed. A detailed model for an example downstream network is developed. Different simplifications and equivalent models are compared in frequency domain and in time domain, during cable energization. The impact of the lower voltage network on both the maximum overvoltage and the harmonic content during energization is assessed. Moreover, components that are of major importance are identified and proper equivalent models for the downstream network are proposed. Simulation results show that in particular the type of the 150 kV network (underground cable or overhead line) affects greatly both the maximum overvoltage and the harmonic content during energization. On the other hand, the parameters of end customer loads have only minor effect.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

Keyword

Electric Power Engineering
Elkraftteknik

Publication and Content Type

ref (subject category)
kon (subject category)

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