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Modelling arcing high impedances faults in relation to the physical processes in the electric arc

Modelling arcing high impedances faults in relation to the physical processes in the electric arc
Modelling arcing high impedances faults in relation to the physical processes in the electric arc
There is an increasing demand for more detailed and accurate modelling techniques for predicting transient response of power systems caused in particular by high impedance arcing faults (HIF). This is particularly so in relation to the design and development of improved equipment and new protection techniques. Accurate prediction of fault transients requires detailed and comprehensive representation of all components in a system, while the transient studies need to be conducted into the frequency range well above the normal power frequency. The HIF is a very complex phenomenon and exhibits very high nonlinear behaviour. The most distinctive characteristics are nonlinearity and asymmetry. The nonlinearity arises from the fact that the voltage-current characteristic curve of the HIF is itself nonlinear. It is observed that the fault current has different waveforms for positive and negative half cycles which is called asymmetry. The nonlinearity and asymmetry exist in every cycle after HIF. In order to obtain a model for a HIF, it is necessary to develop a model that gives the above mentioned characteristics, as well as the harmonic content of the HIF.
high impedance fault, electric arc modelling, transient analysis, physical processes in an arc
1790-5060
1507-1512
Zamanan, N.
488644a9-a2ca-41b7-a22d-9e7ea214748f
Sykulski, J.K.
d6885caf-aaed-4d12-9ef3-46c4c3bbd7fb
Zamanan, N.
488644a9-a2ca-41b7-a22d-9e7ea214748f
Sykulski, J.K.
d6885caf-aaed-4d12-9ef3-46c4c3bbd7fb

Zamanan, N. and Sykulski, J.K. (2006) Modelling arcing high impedances faults in relation to the physical processes in the electric arc. WSEAS Transactions on Power Systems, 1 (8), 1507-1512.

Record type: Article

Abstract

There is an increasing demand for more detailed and accurate modelling techniques for predicting transient response of power systems caused in particular by high impedance arcing faults (HIF). This is particularly so in relation to the design and development of improved equipment and new protection techniques. Accurate prediction of fault transients requires detailed and comprehensive representation of all components in a system, while the transient studies need to be conducted into the frequency range well above the normal power frequency. The HIF is a very complex phenomenon and exhibits very high nonlinear behaviour. The most distinctive characteristics are nonlinearity and asymmetry. The nonlinearity arises from the fact that the voltage-current characteristic curve of the HIF is itself nonlinear. It is observed that the fault current has different waveforms for positive and negative half cycles which is called asymmetry. The nonlinearity and asymmetry exist in every cycle after HIF. In order to obtain a model for a HIF, it is necessary to develop a model that gives the above mentioned characteristics, as well as the harmonic content of the HIF.

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More information

Published date: August 2006
Additional Information: Event Dates: 22-24 September 2006
Venue - Dates: 6th WSEAS International Conference on Power Systems, Portugal, 2006-09-22 - 2006-09-24
Keywords: high impedance fault, electric arc modelling, transient analysis, physical processes in an arc
Organisations: EEE

Identifiers

Local EPrints ID: 263150
URI: http://eprints.soton.ac.uk/id/eprint/263150
ISSN: 1790-5060
PURE UUID: 56bd77b0-67c6-4972-8de2-d04e7df79126
ORCID for J.K. Sykulski: ORCID iD orcid.org/0000-0001-6392-126X

Catalogue record

Date deposited: 03 Nov 2006
Last modified: 14 Mar 2019 01:56

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Contributors

Author: N. Zamanan
Author: J.K. Sykulski ORCID iD

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