Inverter-based resources dominated grid: Voltage and frequency stability in a weakly interconnected power system
As power systems transition toward sustainable generation, the growing integration of inverter-based resources (IBR) poses challenges to secure power system operations, especially in grids with limited capacity. In this study, the large signal stability of the Senegalese transmission network in a co...
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Elsevier
2025-06-01
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| Series: | e-Prime: Advances in Electrical Engineering, Electronics and Energy |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772671125000919 |
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| author | Ndeye Khady Diop Dieng Martin Wolter, Prof.Dr.-Ing.habil. Lamine Thiaw, Professor Adamou Ousmane Manga, Associate Professor |
| author_facet | Ndeye Khady Diop Dieng Martin Wolter, Prof.Dr.-Ing.habil. Lamine Thiaw, Professor Adamou Ousmane Manga, Associate Professor |
| author_sort | Ndeye Khady Diop Dieng |
| collection | DOAJ |
| description | As power systems transition toward sustainable generation, the growing integration of inverter-based resources (IBR) poses challenges to secure power system operations, especially in grids with limited capacity. In this study, the large signal stability of the Senegalese transmission network in a condition of inverter-dominated grid is evaluated. Two IBR penetration rate scenarios were investigated: a base case with 57.7 % based on 2021 peak IBR and a second scenario with 66.8 % in DigSILENT PowerFactory. The voltage stability at critical buses and the frequency response of the system were analyzed against the grid code. The system response following a balanced triphase short circuit fault, where the impact of fault-clearing time and reactive power operation mode of PV plants was investigated. The frequency response is assessed following largest power infeed loss by plants technology (IBR or synchronous generator). The results demonstrate that inverter-dominated grid mainly impact frequency stability rather than voltage stability, with the disconnection of weaker PV plants during faults leading to underfrequency load shedding. High IBR penetration primarily resulted in weakening the connection point of the PV electrically distant from conventional power plants during faults. A fault clearing time exceeding the low voltage ride-through of PV plant and the cessation of reactive power injection by PV caused the trip of weaker PV plants. In summary a secure power system operation at 57.7 % and 66.8 % is achievable under the condition that the fault does not result in a generation loss that exceeds 5.2 % of the total dispatched power. |
| format | Article |
| id | doaj-art-61a21c79110b4a91b22ef604f11d9e6b |
| institution | DOAJ |
| issn | 2772-6711 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | e-Prime: Advances in Electrical Engineering, Electronics and Energy |
| spelling | doaj-art-61a21c79110b4a91b22ef604f11d9e6b2025-08-20T03:21:12ZengElseviere-Prime: Advances in Electrical Engineering, Electronics and Energy2772-67112025-06-011210098410.1016/j.prime.2025.100984Inverter-based resources dominated grid: Voltage and frequency stability in a weakly interconnected power systemNdeye Khady Diop Dieng0Martin Wolter, Prof.Dr.-Ing.habil.1Lamine Thiaw, Professor2Adamou Ousmane Manga, Associate Professor3West African Science Service Center on Climate Change and Adapted Land Use (WASCAL), Doctoral Research Program in Climate Change and Energy, Universite Abdou Moumouni, Niamey 10662, Niger; Corresponding author.Chair of Electrical Networks and renewable Energy, Otto-von-Guercke-University, Magdeburg 39106,GermanyEcole Superieure Polytechnique de Dakar, Universite Cheikh Anta Diop, Dakar 5005,SenegalFaculte des science et Techniques, Universite Abdou Moumouni, Niamey 10662, NigerAs power systems transition toward sustainable generation, the growing integration of inverter-based resources (IBR) poses challenges to secure power system operations, especially in grids with limited capacity. In this study, the large signal stability of the Senegalese transmission network in a condition of inverter-dominated grid is evaluated. Two IBR penetration rate scenarios were investigated: a base case with 57.7 % based on 2021 peak IBR and a second scenario with 66.8 % in DigSILENT PowerFactory. The voltage stability at critical buses and the frequency response of the system were analyzed against the grid code. The system response following a balanced triphase short circuit fault, where the impact of fault-clearing time and reactive power operation mode of PV plants was investigated. The frequency response is assessed following largest power infeed loss by plants technology (IBR or synchronous generator). The results demonstrate that inverter-dominated grid mainly impact frequency stability rather than voltage stability, with the disconnection of weaker PV plants during faults leading to underfrequency load shedding. High IBR penetration primarily resulted in weakening the connection point of the PV electrically distant from conventional power plants during faults. A fault clearing time exceeding the low voltage ride-through of PV plant and the cessation of reactive power injection by PV caused the trip of weaker PV plants. In summary a secure power system operation at 57.7 % and 66.8 % is achievable under the condition that the fault does not result in a generation loss that exceeds 5.2 % of the total dispatched power.http://www.sciencedirect.com/science/article/pii/S2772671125000919Inverter-dominated power systemLarge-scale photovoltaic power plantFrequency stabilityVoltage stability |
| spellingShingle | Ndeye Khady Diop Dieng Martin Wolter, Prof.Dr.-Ing.habil. Lamine Thiaw, Professor Adamou Ousmane Manga, Associate Professor Inverter-based resources dominated grid: Voltage and frequency stability in a weakly interconnected power system e-Prime: Advances in Electrical Engineering, Electronics and Energy Inverter-dominated power system Large-scale photovoltaic power plant Frequency stability Voltage stability |
| title | Inverter-based resources dominated grid: Voltage and frequency stability in a weakly interconnected power system |
| title_full | Inverter-based resources dominated grid: Voltage and frequency stability in a weakly interconnected power system |
| title_fullStr | Inverter-based resources dominated grid: Voltage and frequency stability in a weakly interconnected power system |
| title_full_unstemmed | Inverter-based resources dominated grid: Voltage and frequency stability in a weakly interconnected power system |
| title_short | Inverter-based resources dominated grid: Voltage and frequency stability in a weakly interconnected power system |
| title_sort | inverter based resources dominated grid voltage and frequency stability in a weakly interconnected power system |
| topic | Inverter-dominated power system Large-scale photovoltaic power plant Frequency stability Voltage stability |
| url | http://www.sciencedirect.com/science/article/pii/S2772671125000919 |
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