Wavelet Transform Technique for Denoising of UHF PD Signals in GIS

Wavelet Transform Technique for Denoising of UHF PD Signals in GIS. Abstract: Reliable operation of HV equipment in gas insulated substations (GIS) is ...

Partial discharge monitoring system by UHF method is suitable for internal condition diagnosis of GIS due to its high sensitivity. However, interferences from ...

Wavelet Transform Technique for Denoising of UHF PD Signals in GIS

PD pulse extraction from noise by wavelet transform analysis through the choice of optimum wavelettransform is investigated and the noisy on-site testing ...

Wavelet transform technique for denoising of UHF PD signals in GIS

Request PDF | Wavelet transform technique for denoising of UHF PD signals in GIS | Reliable operation of HV equipment in gas insulated substations (GIS) is ...

De-noising of GIS UHF Partial Discharge Monitoring based on ...

Detection of PD with UHF sensor can find the defect earlier. In this a paper, a de-noising method based on the wavelet method is introduced to improve the ...

(PDF) De-noising of partial discharge signal using wavelet transform ...

The WT techniques were used to discriminate PD pulse sequences from background noise, amplitude modulation radio interference, non-sinusoidal ...

A new wavelet selection method for partial discharge denoising

The proposed SNR based wavelet selection (SNRBWS) method tends to concentrate the information of the PD signal on fewer coefficients with higher values, ...

Denoising of UHF PD signals based on optimised VMD and wavelet ...

Finally, the wavelet-based denoising method is employed to remove the residual white noise. Denoising results for simulative and experimental data show that the ...

The Denoising Method for Transformer Partial Discharge Based on ...

FFT is a global noise analysis method that achieves good denoising effects for signals that change slowly over time [16]. Wavelet transform has ...

Application of Complex Wavelet Transform to Suppress White Noise ...

... Wavelet Transform to Suppress White Noise in GIS UHF PD Signals ... Denoising UHF signal for PD detection in transformers based on wavelet technique.

Partial Discharges and Noise Discrimination Using Magnetic ... - MDPI

The PD were created by connecting a needle to the main conductor in one of the GIS compartments. The cross wavelet transform and its local relative phase were ...

Feature extraction and recognition of UHF partial discharge signals ...

Feature extraction and recognition of UHF partial discharge signals in GIS based on dual-tree complex wavelet transform ... Information. PDF · PDF.

A Novel Hybrid Approach for Partial Discharge Signal Detection ...

[8] present a denoising method based on improved portogram and wavelet transform for UHF PD signals. ... Partial Discharge Detection for GIS ...

Application of Complex Wavelet Transform to Suppress White Noise ...

Application of Complex Wavelet Transform to Suppress White Noise in GIS UHF PD Signals ... GIS PD UHF detection inevitably, the available suppression methods ...

De-noising of partial discharge signal using wavelet transform for ...

Therefore, this paper dealt with the discrimination of PD signal based on wavelet transform (WT) techniques for HVDC GIS, aiming to improve the sensitivity and ...

UHF PD Experiments on Real Power Transformer and its Frequency ...

The received signal is decomposed into different frequency ranges through wavelet packet decomposition (WPD). In each frequency range, a pattern recognition ...

A PRPD-Based UHF Filtering and Noise Reduction Algorithm for ...

... Noise Reduction Algorithm for GIS ... Partial Discharge Signal Denoising Algorithm Based on Adaptive Dual-Tree Complex Wavelet Transform.

Time–frequency analysis of PD‐induced UHF signal in GIS and ...

The short-time Fourier transform method is applied to process UHF signals and describe the propagation characteristics in L-shaped GIS. Hu's ...

A New Denoising Method for UHF PD Signals Using Adaptive VMD ...

Then, a kurtosis-based judgement rule is employed to select the effective BLIMFs (eBLIMFs). Next, a singular spectrum analysis (SSA)-based thresholding ...

Chromatic processing for feature extraction of PD-induced UHF ...

Sagar S R,Amarnath J and Narasimham S V L (2008) Wavelet transform technique for denoising of UHF PD signals in GIS.In:Abstracts of the IEEE Region 10 and ...