Reassigned Time Frequency Analysis for PD Signals in GIS

Hui Wang; Xiu Wei Li; Yu Xin Yun; Hai Yan Yuan

doi:10.4028/www.scientific.net/AMM.448-453.1959

Paper Titles

Study on Interactions of DFACTS Devices Operating in Distribution System
p.1941

Defects Identification of Partial Discharge Map in GIS
p.1947

Calculation of Lighting-Induced Overvoltage on Transmission Line Based on Simplified Wagner Field Cancellation Method
p.1951

Pattern Classification for GIS Base on GK Clustering Algorithm
p.1955

Reassigned Time Frequency Analysis for PD Signals in GIS
p.1959

Study of GIS PD Defect Classification Based on Adaptive Affinity Propagation Clustering
p.1963

The Study of Grounding Grid State Parameter Measuring System Based on IPC Platform
p.1971

Fault Location Method and Hardware Monitoring System of Parallel Compensating Capacitors
p.1977

Numerical Simulation for DC PD in Void
p.1982

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 448-453Reassigned Time Frequency Analysis for PD Signals...

Reassigned Time Frequency Analysis for PD Signals in GIS

Abstract:

Partial discharge signal in GIS is a kind of typical non-stationary signal, using the time or frequency domain simply is not enough to describe the time-varying information of PD. Based on the reason above, this paper introduces a joint time-frequency analysis method according to the reassignment theory for analyzing the PD of GIS. After the processing of the PD signals simulated and on field, we conclude that this method provides a higher concentration in the time-frequency plane and reduces the most influence of the cross-interference terms.

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Periodical:

Applied Mechanics and Materials (Volumes 448-453)

Pages:

1959-1962

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.448-453.1959

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Online since:

October 2013

Authors:

Hui Wang*, Xiu Wei Li, Yu Xin Yun, Hai Yan Yuan

Keywords:

GIS, Partial Discharge (PD), Reassignment Transform, Time-Frequency Analysis

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