NDLI: Research on the measurement of space charge based on sound impulse

Content Provider	IEEE Xplore Digital Library
Author	Kang-Lin Liu Rui-Jin Liao Hong-Bo Liu Xing-Rong Liao
Copyright Year	2015
Description	Author affiliation: State Key Lab. of Power Transm. Equip. & Syst. Security & New Technol., Chongqing Univ., Chongqing, China (Kang-Lin Liu; Rui-Jin Liao; Hong-Bo Liu) \|\| State Grid Chongqing Electr. Power Co. Maintenance, Chongqing, China (Xing-Rong Liao)
Abstract	The space charge is one of important reasons affecting corona discharge, which is closely related to corona discharge mechanism, initiation and maintenance condition. How to acquire the distribution of space charge is always a puzzle which has not been settled. A space charge measurement method is proposed in this paper. Sound pulse makes the vibration of space charge, which results in the generation of electric field signal. Finite difference method is used to gain the relation between the space charge density and sound pressure. A set of contactless measuring systems are developed which can be used for real time measuring of the space charge distribution on a multi-needle-to-plate geometry. The system consists of an arbitrary custom-made sound generator and an electric field antenna.. Through finite difference method, space charge density can be obtained. The results gained by sound impulse method are compared with the result calculated by corona current method. Good agreements verify the validity of the proposed method.
Starting Page	364
Ending Page	367
File Size	1155359
Page Count	4
File Format	PDF
ISSN	21609241
e-ISBN	9781479989034
DOI	10.1109/ICPADM.2015.7295284
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-07-19
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Space charge Electric fields Corona Acoustics Finite element analysis Signal processing algorithms Discharges (electric) electric field sound pulse space charge
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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