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Geomagnetically Induced Current Analysis in Malaysian Power Transmission System

Electric fields; Electric grounding; Electric network analysis; Electric power transmission networks; Electric substations; Intercalation; Power transformers; Reactive power; Risk assessment; Solar energy; Timing circuits; Circuit faults; Conductivity; Geomagnetic disturbance; Geomagnetically induce...

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Main Authors: Khurshid Z.M., Ab Aziz N.F., Rhazali Z.A., Ab Kadir M.Z.A.
Other Authors: 57199152644
Format: Article
Published: Institute of Electrical and Electronics Engineers Inc. 2023
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spelling my.uniten.dspace-270942023-05-29T17:39:28Z Geomagnetically Induced Current Analysis in Malaysian Power Transmission System Khurshid Z.M. Ab Aziz N.F. Rhazali Z.A. Ab Kadir M.Z.A. 57199152644 57221906825 16022936300 25947297000 Electric fields; Electric grounding; Electric network analysis; Electric power transmission networks; Electric substations; Intercalation; Power transformers; Reactive power; Risk assessment; Solar energy; Timing circuits; Circuit faults; Conductivity; Geomagnetic disturbance; Geomagnetically induced currents; High voltage techniques; High-voltage transformers; Malaysian power network; Malaysians; Power; Power grids; Power networks; Power system; PSCAD/EMTDC; Space weather; Substation; Geomagnetism For many decades, Geomagnetically Induced Current (GIC) has posed a significant risk over the electrical power grid infrastructures worldwide. The phenomenon occurs due to geomagnetic disturbance (GMD) and related space weather events arising from solar activity. It represents a potential hazard to the secure and safe operation of electrical power grids by causing half-cycle saturation of grounded High Voltage (HV) power transformers, relay misoperation, and increased reactive power demand in the power systems. Previous studies have shown that the occurrence of intense GIC is not limited to high and mid-latitude regions, but powerful space weather events can also result in intense GIC in power systems located in lower geographic latitudes. This study aims to estimate GIC and its impacts on a Malaysian power grid. A network model of the grid was constructed by using the Power System Simulator for Engineering (PSS/E). This represents the first attempt to study GICs in south-eastern Asian power grids since a region is considered to have low GIC risk up to now. During the analysis, firstly, we exposed the entire power network which includes 500 kV, 275 kV, and 132 kV system voltages to different geoelectric field strengths in the 0-180� directions. The applied geoelectric fields were calculated based on benchmark value for 1 in 100 years of GMD events. Then we disconnected the 132 kV low voltage systems from the network model to investigate their influence on the calculated GICs. The results demonstrated that the most vulnerable substations to GMD events and experienced large GICs were those located in the middle of the Malaysian power network. The maximum GIC was recorded at substation 22 with the value of 44.58 A due to the peak electric field of 1.2 V/km at 100� field direction. Also, the results showed that the calculated GICs slightly increased when 132 kV systems were removed from the power network, especially at the substations directly connected to these systems. � 2013 IEEE. Final 2023-05-29T09:39:28Z 2023-05-29T09:39:28Z 2022 Article 10.1109/ACCESS.2022.3215266 2-s2.0-85140709615 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85140709615&doi=10.1109%2fACCESS.2022.3215266&partnerID=40&md5=ee24d9c1bef9166d872227801e779537 https://irepository.uniten.edu.my/handle/123456789/27094 10 110205 110216 All Open Access, Gold Institute of Electrical and Electronics Engineers Inc. Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
description Electric fields; Electric grounding; Electric network analysis; Electric power transmission networks; Electric substations; Intercalation; Power transformers; Reactive power; Risk assessment; Solar energy; Timing circuits; Circuit faults; Conductivity; Geomagnetic disturbance; Geomagnetically induced currents; High voltage techniques; High-voltage transformers; Malaysian power network; Malaysians; Power; Power grids; Power networks; Power system; PSCAD/EMTDC; Space weather; Substation; Geomagnetism
author2 57199152644
author_facet 57199152644
Khurshid Z.M.
Ab Aziz N.F.
Rhazali Z.A.
Ab Kadir M.Z.A.
format Article
author Khurshid Z.M.
Ab Aziz N.F.
Rhazali Z.A.
Ab Kadir M.Z.A.
spellingShingle Khurshid Z.M.
Ab Aziz N.F.
Rhazali Z.A.
Ab Kadir M.Z.A.
Geomagnetically Induced Current Analysis in Malaysian Power Transmission System
author_sort Khurshid Z.M.
title Geomagnetically Induced Current Analysis in Malaysian Power Transmission System
title_short Geomagnetically Induced Current Analysis in Malaysian Power Transmission System
title_full Geomagnetically Induced Current Analysis in Malaysian Power Transmission System
title_fullStr Geomagnetically Induced Current Analysis in Malaysian Power Transmission System
title_full_unstemmed Geomagnetically Induced Current Analysis in Malaysian Power Transmission System
title_sort geomagnetically induced current analysis in malaysian power transmission system
publisher Institute of Electrical and Electronics Engineers Inc.
publishDate 2023
_version_ 1806427440177741824
score 13.188404

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