Impact of Synchronous Condensers’ Ratings on Mitigating Subsynchronous Oscillations in Wind Farms
Subsynchronous oscillations have occurred in wind farms due to the high penetration of converter-based technology in power systems and may potentially lead to grid instability. As an effective solution, synchronous condensers, with their ability to control voltage and inject reactive power in the po...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-04-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/17/7/1730 |
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| author | Dimitrios Dimitropoulos Mohammad Kazem Bakhshizadeh Lukasz Kocewiak Xiongfei Wang Frede Blaabjerg |
| author_facet | Dimitrios Dimitropoulos Mohammad Kazem Bakhshizadeh Lukasz Kocewiak Xiongfei Wang Frede Blaabjerg |
| author_sort | Dimitrios Dimitropoulos |
| collection | DOAJ |
| description | Subsynchronous oscillations have occurred in wind farms due to the high penetration of converter-based technology in power systems and may potentially lead to grid instability. As an effective solution, synchronous condensers, with their ability to control voltage and inject reactive power in the power system, are increasingly being adopted, as they can lead to the mitigation of such oscillations in weak grid conditions. However, the impact of synchronous condensers’ power ratings on system stability is a topic that requires further investigation. In fact, an improper selection of a synchronous condenser’s rating will not extinguish existing subsynchronous oscillations and may even cause the emergence of new oscillatory phenomena. This paper presents a novel examination of the impact that the synchronous condenser’s power rating has on the small-signal stability of a wind farm with existing subsynchronous oscillations while being connected to a weak grid. The wind farm’s model is developed using state-space modeling, centering on grid interconnection and incorporating the state-space submodel of a synchronous condenser to show its impact on subsynchronous oscillation mitigation. The stability analysis determines the optimal synchronous condenser’s power ratings for suppressing these oscillations in the wind farm model. The findings are corroborated through time domain simulations and fast-Fourier transformation (FFT) analysis, which further validate the stability effects of a synchronous condenser’s rating. |
| first_indexed | 2024-04-24T10:45:40Z |
| format | Article |
| id | doaj.art-934824a7130a4e0abf15c18bf75fa753 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-24T10:45:40Z |
| publishDate | 2024-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-934824a7130a4e0abf15c18bf75fa7532024-04-12T13:18:12ZengMDPI AGEnergies1996-10732024-04-01177173010.3390/en17071730Impact of Synchronous Condensers’ Ratings on Mitigating Subsynchronous Oscillations in Wind FarmsDimitrios Dimitropoulos0Mohammad Kazem Bakhshizadeh1Lukasz Kocewiak2Xiongfei Wang3Frede Blaabjerg4AAU Energy, Aalborg University, 9220 Aalborg, DenmarkØrsted Wind Power A/S, 2820 Gentofte, DenmarkØrsted Wind Power A/S, 2820 Gentofte, DenmarkAAU Energy, Aalborg University, 9220 Aalborg, DenmarkAAU Energy, Aalborg University, 9220 Aalborg, DenmarkSubsynchronous oscillations have occurred in wind farms due to the high penetration of converter-based technology in power systems and may potentially lead to grid instability. As an effective solution, synchronous condensers, with their ability to control voltage and inject reactive power in the power system, are increasingly being adopted, as they can lead to the mitigation of such oscillations in weak grid conditions. However, the impact of synchronous condensers’ power ratings on system stability is a topic that requires further investigation. In fact, an improper selection of a synchronous condenser’s rating will not extinguish existing subsynchronous oscillations and may even cause the emergence of new oscillatory phenomena. This paper presents a novel examination of the impact that the synchronous condenser’s power rating has on the small-signal stability of a wind farm with existing subsynchronous oscillations while being connected to a weak grid. The wind farm’s model is developed using state-space modeling, centering on grid interconnection and incorporating the state-space submodel of a synchronous condenser to show its impact on subsynchronous oscillation mitigation. The stability analysis determines the optimal synchronous condenser’s power ratings for suppressing these oscillations in the wind farm model. The findings are corroborated through time domain simulations and fast-Fourier transformation (FFT) analysis, which further validate the stability effects of a synchronous condenser’s rating.https://www.mdpi.com/1996-1073/17/7/1730subsynchronous oscillationsmitigating measuressynchronous condenserstability analysisstate-space modelgrid-following converter control |
| spellingShingle | Dimitrios Dimitropoulos Mohammad Kazem Bakhshizadeh Lukasz Kocewiak Xiongfei Wang Frede Blaabjerg Impact of Synchronous Condensers’ Ratings on Mitigating Subsynchronous Oscillations in Wind Farms Energies subsynchronous oscillations mitigating measures synchronous condenser stability analysis state-space model grid-following converter control |
| title | Impact of Synchronous Condensers’ Ratings on Mitigating Subsynchronous Oscillations in Wind Farms |
| title_full | Impact of Synchronous Condensers’ Ratings on Mitigating Subsynchronous Oscillations in Wind Farms |
| title_fullStr | Impact of Synchronous Condensers’ Ratings on Mitigating Subsynchronous Oscillations in Wind Farms |
| title_full_unstemmed | Impact of Synchronous Condensers’ Ratings on Mitigating Subsynchronous Oscillations in Wind Farms |
| title_short | Impact of Synchronous Condensers’ Ratings on Mitigating Subsynchronous Oscillations in Wind Farms |
| title_sort | impact of synchronous condensers ratings on mitigating subsynchronous oscillations in wind farms |
| topic | subsynchronous oscillations mitigating measures synchronous condenser stability analysis state-space model grid-following converter control |
| url | https://www.mdpi.com/1996-1073/17/7/1730 |
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