Online partial discharge measurement in a high noise environment

This thesis deals with the online measurement of partial discharge (PD) in a high-voltage direct current (HVDC) converter station. The HVDC station is a particularly challenging environment for PD measurement due to elevated interference levels caused from the switching of the thyristor-controlled c...

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Main Author: Jacob, Nathan Dale
Other Authors: Kordi, Behzad (Electrical & Computer Engineering) Swatek, David (Electrical & Computer Engineering)
Language:en_US
Published: 2011
Subjects:
Online Access:http://hdl.handle.net/1993/4380
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spelling ndltd-MANITOBA-oai-mspace.lib.umanitoba.ca-1993-43802014-01-31T03:32:15Z Online partial discharge measurement in a high noise environment Jacob, Nathan Dale Kordi, Behzad (Electrical & Computer Engineering) Swatek, David (Electrical & Computer Engineering) Ziomek, Waldemar (Electrical & Computer Engineering) Paliwal, Jitendra (Biosystems Engineering) McDermid, William (Manitoba Hydro) partial discharge This thesis deals with the online measurement of partial discharge (PD) in a high-voltage direct current (HVDC) converter station. The HVDC station is a particularly challenging environment for PD measurement due to elevated interference levels caused from the switching of the thyristor-controlled converters. Online PD measurements are performed on two specimens, one is an HVDC converter transformer and the other an HVDC converter wall bushing. The measurements are performed in the high-frequency range between 400-kHz to 30-MHz with a modern PD measurement instrument that employs a signal processing technique known as feature extraction. The results demonstrate that online measurement of PD in an HVDC station environment is possible. Input filtering and feature extraction methods can mitigate the converter interference. The feature extraction methods can also isolate individual PD phenomena, and allow for the trending and monitoring of insulation degradation. Furthermore, specific strategies for PD measurement and analysis are developed. 2011-01-19T20:51:36Z 2011-01-19T20:51:36Z 2011-01-19T20:51:36Z http://hdl.handle.net/1993/4380 en_US
collection NDLTD
language en_US
sources NDLTD
topic partial discharge
spellingShingle partial discharge
Jacob, Nathan Dale
Online partial discharge measurement in a high noise environment
description This thesis deals with the online measurement of partial discharge (PD) in a high-voltage direct current (HVDC) converter station. The HVDC station is a particularly challenging environment for PD measurement due to elevated interference levels caused from the switching of the thyristor-controlled converters. Online PD measurements are performed on two specimens, one is an HVDC converter transformer and the other an HVDC converter wall bushing. The measurements are performed in the high-frequency range between 400-kHz to 30-MHz with a modern PD measurement instrument that employs a signal processing technique known as feature extraction. The results demonstrate that online measurement of PD in an HVDC station environment is possible. Input filtering and feature extraction methods can mitigate the converter interference. The feature extraction methods can also isolate individual PD phenomena, and allow for the trending and monitoring of insulation degradation. Furthermore, specific strategies for PD measurement and analysis are developed.
author2 Kordi, Behzad (Electrical & Computer Engineering) Swatek, David (Electrical & Computer Engineering)
author_facet Kordi, Behzad (Electrical & Computer Engineering) Swatek, David (Electrical & Computer Engineering)
Jacob, Nathan Dale
author Jacob, Nathan Dale
author_sort Jacob, Nathan Dale
title Online partial discharge measurement in a high noise environment
title_short Online partial discharge measurement in a high noise environment
title_full Online partial discharge measurement in a high noise environment
title_fullStr Online partial discharge measurement in a high noise environment
title_full_unstemmed Online partial discharge measurement in a high noise environment
title_sort online partial discharge measurement in a high noise environment
publishDate 2011
url http://hdl.handle.net/1993/4380
work_keys_str_mv AT jacobnathandale onlinepartialdischargemeasurementinahighnoiseenvironment
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