Effect of GIC Neutral Blocking Devices (NBDs) on Power Network Ferroresonance in Malaysia
Geomagnetic disturbance (GMD) arises during space weather and solar activity can result in geomagnetically induced current (GIC) flow in the grounded power transformers in the power network. This GIC may cause half-cycle saturation of transformers and lead to severe damage or blackout. To block the...
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| Format: | Article |
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IEEE
2022-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9800710/ |
| _version_ | 1811311635881525248 |
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| author | Zmnako Mohammed Khurshid Nur Fadilah Ab Aziz Zeti Akma Rhazali Mohd Zainal Abidin Ab Kadir |
| author_facet | Zmnako Mohammed Khurshid Nur Fadilah Ab Aziz Zeti Akma Rhazali Mohd Zainal Abidin Ab Kadir |
| author_sort | Zmnako Mohammed Khurshid |
| collection | DOAJ |
| description | Geomagnetic disturbance (GMD) arises during space weather and solar activity can result in geomagnetically induced current (GIC) flow in the grounded power transformers in the power network. This GIC may cause half-cycle saturation of transformers and lead to severe damage or blackout. To block the GIC flow into the power transformers, the neutral blocking devices (NBDs) based on capacitor banks are often installed in the neutral ground paths of transformers to mitigate the GIC. However, the high voltage (HV) can build up across these capacitors during ground faults and may cause a ferroresonance phenomenon in the power network. This phenomenon generates high voltages/currents in the transformer windings and results in transformer failure. This work investigates the effect of connected NBDs to the power transformers on the potential power network ferroresonance in Peninsular Malaysia. The complete analysis was carried out using the Power System Computer-Aided Design for Electromagnetic Transients including Direct Current (PSCAD/EMTDC) software. These transformers were selected in the power network due to the sensitivity of their locations to GMD events. The NBD systems were tested under different working conditions. The simulation results found that the metal oxide varistors (MOVs) arresters in NBDs fault protection mode effectively clamped ferroresonance overvoltages below the protection level under faulty conditions. Also, the results showed that GIC protection modes with 1 <inline-formula> <tex-math notation="LaTeX">$\Omega $ </tex-math></inline-formula> and 3180 <inline-formula> <tex-math notation="LaTeX">$\mu \text{F}$ </tex-math></inline-formula> in the mitigation systems had the lowest ferroresonance overvoltages in the neutrals of the transformers under faulty conditions. Based on the results, the recommendations were provided to the local power utility which will help to improve the reliability of the power supply to the consumers. |
| first_indexed | 2024-04-13T10:22:17Z |
| format | Article |
| id | doaj.art-d07f6a2d0337493994f13d27565567fc |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-13T10:22:17Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-d07f6a2d0337493994f13d27565567fc2022-12-22T02:50:28ZengIEEEIEEE Access2169-35362022-01-0110772257723810.1109/ACCESS.2022.31844249800710Effect of GIC Neutral Blocking Devices (NBDs) on Power Network Ferroresonance in MalaysiaZmnako Mohammed Khurshid0https://orcid.org/0000-0003-2474-7777Nur Fadilah Ab Aziz1Zeti Akma Rhazali2Mohd Zainal Abidin Ab Kadir3https://orcid.org/0000-0001-7263-2953College of Engineering, Institute of Power Engineering (IPE), Universiti Tenaga Nasional, Kajang, Selangor, MalaysiaCollege of Engineering, Institute of Power Engineering (IPE), Universiti Tenaga Nasional, Kajang, Selangor, MalaysiaCollege of Engineering, Institute of Power Engineering (IPE), Universiti Tenaga Nasional, Kajang, Selangor, MalaysiaAdvanced Lightning, Power and Energy Research Centre (ALPER), Faculty of Engineering, Universiti Putra Malaysia, Serdang, Selangor, MalaysiaGeomagnetic disturbance (GMD) arises during space weather and solar activity can result in geomagnetically induced current (GIC) flow in the grounded power transformers in the power network. This GIC may cause half-cycle saturation of transformers and lead to severe damage or blackout. To block the GIC flow into the power transformers, the neutral blocking devices (NBDs) based on capacitor banks are often installed in the neutral ground paths of transformers to mitigate the GIC. However, the high voltage (HV) can build up across these capacitors during ground faults and may cause a ferroresonance phenomenon in the power network. This phenomenon generates high voltages/currents in the transformer windings and results in transformer failure. This work investigates the effect of connected NBDs to the power transformers on the potential power network ferroresonance in Peninsular Malaysia. The complete analysis was carried out using the Power System Computer-Aided Design for Electromagnetic Transients including Direct Current (PSCAD/EMTDC) software. These transformers were selected in the power network due to the sensitivity of their locations to GMD events. The NBD systems were tested under different working conditions. The simulation results found that the metal oxide varistors (MOVs) arresters in NBDs fault protection mode effectively clamped ferroresonance overvoltages below the protection level under faulty conditions. Also, the results showed that GIC protection modes with 1 <inline-formula> <tex-math notation="LaTeX">$\Omega $ </tex-math></inline-formula> and 3180 <inline-formula> <tex-math notation="LaTeX">$\mu \text{F}$ </tex-math></inline-formula> in the mitigation systems had the lowest ferroresonance overvoltages in the neutrals of the transformers under faulty conditions. Based on the results, the recommendations were provided to the local power utility which will help to improve the reliability of the power supply to the consumers.https://ieeexplore.ieee.org/document/9800710/Neutral blocking devicesferroresonanceovervoltageMalaysian power networkPSCAD/EMTDCpower transformer |
| spellingShingle | Zmnako Mohammed Khurshid Nur Fadilah Ab Aziz Zeti Akma Rhazali Mohd Zainal Abidin Ab Kadir Effect of GIC Neutral Blocking Devices (NBDs) on Power Network Ferroresonance in Malaysia IEEE Access Neutral blocking devices ferroresonance overvoltage Malaysian power network PSCAD/EMTDC power transformer |
| title | Effect of GIC Neutral Blocking Devices (NBDs) on Power Network Ferroresonance in Malaysia |
| title_full | Effect of GIC Neutral Blocking Devices (NBDs) on Power Network Ferroresonance in Malaysia |
| title_fullStr | Effect of GIC Neutral Blocking Devices (NBDs) on Power Network Ferroresonance in Malaysia |
| title_full_unstemmed | Effect of GIC Neutral Blocking Devices (NBDs) on Power Network Ferroresonance in Malaysia |
| title_short | Effect of GIC Neutral Blocking Devices (NBDs) on Power Network Ferroresonance in Malaysia |
| title_sort | effect of gic neutral blocking devices nbds on power network ferroresonance in malaysia |
| topic | Neutral blocking devices ferroresonance overvoltage Malaysian power network PSCAD/EMTDC power transformer |
| url | https://ieeexplore.ieee.org/document/9800710/ |
| work_keys_str_mv | AT zmnakomohammedkhurshid effectofgicneutralblockingdevicesnbdsonpowernetworkferroresonanceinmalaysia AT nurfadilahabaziz effectofgicneutralblockingdevicesnbdsonpowernetworkferroresonanceinmalaysia AT zetiakmarhazali effectofgicneutralblockingdevicesnbdsonpowernetworkferroresonanceinmalaysia AT mohdzainalabidinabkadir effectofgicneutralblockingdevicesnbdsonpowernetworkferroresonanceinmalaysia |