NDLI: Statistical and topological characterization of PD defects

Content Provider	IEEE Xplore Digital Library
Author	Paithankar, A.A. Mokashi, A.D. Singh, N.M.
Copyright Year	1999
Description	Author affiliation: ABB Lenzohm Service Ltd., Mumbai, India (Paithankar, A.A.)
Abstract	The dynamic evolution of partial discharges (PDs) is nonlinear and chaotic in nature. This means that although a PD has a definite governing principle which dictates its evolution, it may behave in an apparently random manner due the existence of nonlinearity. Analyzing the PD process entails considering a PD as a dynamical system. As the PD process evolves, it marks a trajectory in the state-space which is attracted to a specific region. This region of the the state-space is called the attractor. Distinct PD defects have distinct dynamics of evolution which result in a unique structure for PD attractors. In this paper, two methods of characterizing PD attractors are discussed. The first method relates to the statistical or the metric characterization of the PD attractor which attempts to describe the structure of the attractor in metric terms. The topological characterization aims at evaluating the topological invariants of the system, which describe the geometry of the attractor.
Starting Page	517
Ending Page	521
File Size	372964
Page Count	5
File Format	PDF
ISBN	0780357574
ISSN	03622479
DOI	10.1109/EEIC.1999.826264
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-10-28
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Partial discharges State-space methods Chaos Dielectrics and electrical insulation Nonlinear dynamical systems Power transformer insulation Geometry Fault location Surface discharges Corona
Content Type	Text
Resource Type	Article

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