The evolution of high impedance fault modeling
The evolution of high impedance fault modeling
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 highly 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 also 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 the HIF. In order to obtain a good representation of a HIF, it is necessary to develop a model that gives the above mentioned characteristics, as well as the harmonic content of the HIF. This paper introduces a new HIF model, it also reviews and summarizes some of the methods for modelling high impedance faults and the developments which led to them.
77-81
Zamanan, N.
488644a9-a2ca-41b7-a22d-9e7ea214748f
Sykulski, J.
d6885caf-aaed-4d12-9ef3-46c4c3bbd7fb
25 May 2014
Zamanan, N.
488644a9-a2ca-41b7-a22d-9e7ea214748f
Sykulski, J.
d6885caf-aaed-4d12-9ef3-46c4c3bbd7fb
Zamanan, N. and Sykulski, J.
(2014)
The evolution of high impedance fault modeling.
2014 IEEE 16th International Conference on Harmonics and Quality of Power (ICHQP), Bucharest, Romania.
25 - 28 May 2014.
.
(doi:10.1109/ICHQP.2014.6842852).
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Conference or Workshop Item
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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 highly 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 also 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 the HIF. In order to obtain a good representation of a HIF, it is necessary to develop a model that gives the above mentioned characteristics, as well as the harmonic content of the HIF. This paper introduces a new HIF model, it also reviews and summarizes some of the methods for modelling high impedance faults and the developments which led to them.
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ICHQP2014 NZ JKS p77.pdf
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Published date: 25 May 2014
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2014 IEEE 16th International Conference on Harmonics and Quality of Power (ICHQP), Bucharest, Romania, 2014-05-25 - 2014-05-28
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EEE
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Local EPrints ID: 369889
URI: http://eprints.soton.ac.uk/id/eprint/369889
PURE UUID: c3bbf1bd-dad1-4588-9c98-fa314c2daf85
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Date deposited: 08 Oct 2014 11:03
Last modified: 15 Mar 2024 02:34
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Author:
N. Zamanan
Author:
J. Sykulski
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