NDLI: A new approach to understanding the frequency response of mineral oil

Content Provider	IEEE Xplore Digital Library
Author	Yuan Zhou Miao Hao Chen, G. Jarman, P. Wilson, G.
Copyright Year	2014
Description	Author affiliation: Univ. of Southampton, Southampton, UK (Yuan Zhou; Miao Hao; Chen, G.) \|\| Nat. Grid, Warwick, UK (Jarman, P.; Wilson, G.)
Abstract	Dielectric spectroscopy is non-invasive diagnostic method and can give information about dipole relaxation, electrical conduction and structure of molecules. Since the creation of charge carriers in mineral oil is not only from dissociation but also injection from electrodes, the injection current cannot be simply ignored. The polarization caused by the charge injection has been studied in this paper. Based on our research, if the mobility of the injected charge carriers is fast enough so that they can reach the opposite electrode, the current caused by the injection will contribute only to the imaginary part of the complex permittivity and this part of the complex permittivity will decrease with the frequency with a slope of -1 which is in a good agreement with the experimental result. The classic ionic drift and diffusion model and this injection model will be combined to make an improved model. In this paper, the frequency responses of three different kinds of mineral oils have been measured, and this modified model has been used to simulate the experiment result. Since there is only one unknown parameter in this improved model, a better understanding of the frequency response in mineral oil can be achieved.
Starting Page	1
Ending Page	4
File Size	941664
Page Count	4
File Format	PDF
ISBN	9781479920631
DOI	10.1109/ICDL.2014.6893143
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-06-29
Publisher Place	Slovenia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Minerals Electrodes fast charge carrier dielectric spectroscopy injection
Content Type	Text
Resource Type	Article

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