NDLI: Comparing frequency-dependent and distributed parameter with lumped losses power cable line models for cable insulation coordination against overvoltages

Content Provider	IET Digital Library
Author	Marzinotto, Massimo Pelliccione, Giuseppe
Abstract	Simulations of transients are an obliged step for the insulation coordination of cable lines. Although a frequency-dependent power cable line model better takes into account real conditions since resistive and inductive parameters vary with frequency, a distributed parameter with lumped losses power cable models can be useful to simplify and give higher flexibility to the insulation coordination study. In such a case, a dilemma rises up when a frequency shall be selected for the determination of the cable parameters. In this study, a comparative analysis between the two models has been performed considering a typical configuration layout, i.e. an overvoltage coming from an overhead line and stressing the cable line terminated on a transformer. The overvoltages stressing both cable insulation wall and cable thermoplastic jacket are evaluated using the same system configuration with both frequency-dependent and distributed parameter with lumped losses power cable line models, in the latter case sweeping different frequency values for the determination of the cable parameters. A frequency range that minimise the differences between the overvoltage estimation using the two models is suggested.
Starting Page	115
Ending Page	122
Page Count	8
ISSN	17518822
Volume Number	13
e-ISSN	17518830
Issue Number	Issue 2, Mar (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-smt/13/2
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-smt.2018.5118
Journal	IET Science, Measurement & Technology
Publisher Date	2018-09-25
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Cable Insulation Coordination Cable Insulation Wall Cable Line Cable Parameter Cable Thermoplastic Jacket Comparing Frequency-dependent Different Frequency Values Distributed Parameter Frequency-dependent Power Cable Line Model Inductive Parameter Insulation Coordination Study Lumped Loss Power Cable Line Model Overhead Line Overvoltage Overvoltage Estimation Overvoltage Protection Power Cable Insulation Power Cable Testing Power Cables Power Overhead Line Power System Protection Resistive Parameter
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering

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