NDLI: Strongly robust approach for temperature monitoring of power cable joint

Content Provider	IET Digital Library
Author	Tang, Liezheng Ruan, Jiangjun Qiu, Zhibin Liu, Chao Tang, Ke
Abstract	This study aims to monitor the temperature inside power cable joint, with strong robustness to variable thermal environments and uncertain thermal parameters of the joint. The model consists of two sequential steps, radial-direction temperature inversion in the cable and axial-direction temperature inversion in the conductor. The former part was improved by coating the cable with a heat insulated layer, whereas the latter one was optimised through a proper parameter selection. Afterwards, an outdoor cable joint temperature-rise test was carried out and the temperature obtained from the proposed approach agrees well with the measured one. With the great change in ambient temperature and wind speed during the test, the model accuracy remains almost constant, and this is due to the heat insulated layer and low sensitivity coefficient of the algorithm. Besides, if the thermal conductivity and volumetric specific heat of waterproof compound in cable joint are assumed to increase by nearly five times, the maximum changes in temperature monitoring are only 1.4 and 0.4°C, respectively. The results indicate that this approach can effectively overcome the effects of variable thermal environments and thermal parameter dispersion in joint, thus promoting practical applications in temperature monitoring for cable joints.
Starting Page	1324
Ending Page	1331
Page Count	8
ISSN	17518687
Volume Number	13
e-ISSN	17518695
Issue Number	Issue 8, Apr (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/13/8
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2018.5924
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-01-15
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Ambient Temperature Axial-direction Temperature Inversion Cable Jointing Engineering Material Heat Insulated Layer Heat Transfer Outdoor Cable Joint Temperature-rise Test Power Cable Joint Power Cables Proper Parameter Selection Radial-direction Temperature Inversion Specific Heat Strong Robustness Strongly Robust Approach Temperature 0.4 DegC Temperature 1.4 DegC Temperature Control Temperature Distribution Temperature Measurement Temperature Monitoring Thermal Conductivity Thermal Insulation Thermal Parameter Dispersion Thermal Variables Control Thermal Variables Measurement Uncertain Thermal Parameter Variable Thermal Environments Waterproofing
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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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