A Stability Control Method to Maintain Synchronization Stability of Wind Generation under Weak Grid
When wind generation systems operate under weak grid conditions, synchronization stability issues may arise, restricting the wind farms’ power transfer capacity. This paper aims to address these challenges on the grid side. Firstly, a clear exposition of the coupling mechanism between the grid-conne...
| 主要な著者: | , , , , , , |
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| フォーマット: | 論文 |
| 言語: | English |
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MDPI AG
2024-09-01
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| シリーズ: | Energies |
| 主題: | |
| オンライン･アクセス: | https://www.mdpi.com/1996-1073/17/17/4450 |
| _version_ | 1827116041949413376 |
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| author | Minhai Wu Jun Zeng Gengning Ying Jidong Xu Shuangfei Yang Yuebin Zhou Junfeng Liu |
| author_facet | Minhai Wu Jun Zeng Gengning Ying Jidong Xu Shuangfei Yang Yuebin Zhou Junfeng Liu |
| author_sort | Minhai Wu |
| collection | DOAJ |
| description | When wind generation systems operate under weak grid conditions, synchronization stability issues may arise, restricting the wind farms’ power transfer capacity. This paper aims to address these challenges on the grid side. Firstly, a clear exposition of the coupling mechanism between the grid-connected inverters (GCI) of wind generations and the weak grid is provided. Then, an equivalent parallel compensation method integrated into the PLL to enhance synchronization stability is proposed. The method changes the reference of the PLL and equivalently parallels the virtual resistance with the grid impedance, which alters the strength of the grid. It reshapes the inverter <i>qq</i>-axis impedance at the impedance level. And the proper design of the virtual resistance will enhance the system’s stability without compromising the dynamic performance of PLL. In addition, the proposed method is robust to the parameter changes of the grid-connected system and the grid impedance measurement error. Experimental results are presented to validate the effectiveness of the compensation method. |
| first_indexed | 2025-03-20T12:27:22Z |
| format | Article |
| id | doaj.art-3167227aebfb4e5bb33c510b51d8f94b |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2025-03-20T12:27:22Z |
| publishDate | 2024-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-3167227aebfb4e5bb33c510b51d8f94b2024-09-13T12:34:55ZengMDPI AGEnergies1996-10732024-09-011717445010.3390/en17174450A Stability Control Method to Maintain Synchronization Stability of Wind Generation under Weak GridMinhai Wu0Jun Zeng1Gengning Ying2Jidong Xu3Shuangfei Yang4Yuebin Zhou5Junfeng Liu6The School of Electric Power Engineering, South China University of Technology, Guangzhou 510640, ChinaThe School of Electric Power Engineering, South China University of Technology, Guangzhou 510640, ChinaThe School of Electric Power Engineering, South China University of Technology, Guangzhou 510640, ChinaThe School of Electric Power Engineering, South China University of Technology, Guangzhou 510640, ChinaState Key Laboratory of HVDC, Electric Power Research Institute, China Southern Power Grid Co., Ltd., Guangzhou 510663, ChinaState Key Laboratory of HVDC, Electric Power Research Institute, China Southern Power Grid Co., Ltd., Guangzhou 510663, ChinaThe School of Automation Science and Engineering, South China University of Technology, Guangzhou 510640, ChinaWhen wind generation systems operate under weak grid conditions, synchronization stability issues may arise, restricting the wind farms’ power transfer capacity. This paper aims to address these challenges on the grid side. Firstly, a clear exposition of the coupling mechanism between the grid-connected inverters (GCI) of wind generations and the weak grid is provided. Then, an equivalent parallel compensation method integrated into the PLL to enhance synchronization stability is proposed. The method changes the reference of the PLL and equivalently parallels the virtual resistance with the grid impedance, which alters the strength of the grid. It reshapes the inverter <i>qq</i>-axis impedance at the impedance level. And the proper design of the virtual resistance will enhance the system’s stability without compromising the dynamic performance of PLL. In addition, the proposed method is robust to the parameter changes of the grid-connected system and the grid impedance measurement error. Experimental results are presented to validate the effectiveness of the compensation method.https://www.mdpi.com/1996-1073/17/17/4450wind generationweak gridsynchronization stabilitycoupling mechanismequivalent parallel compensationstability analysis |
| spellingShingle | Minhai Wu Jun Zeng Gengning Ying Jidong Xu Shuangfei Yang Yuebin Zhou Junfeng Liu A Stability Control Method to Maintain Synchronization Stability of Wind Generation under Weak Grid Energies wind generation weak grid synchronization stability coupling mechanism equivalent parallel compensation stability analysis |
| title | A Stability Control Method to Maintain Synchronization Stability of Wind Generation under Weak Grid |
| title_full | A Stability Control Method to Maintain Synchronization Stability of Wind Generation under Weak Grid |
| title_fullStr | A Stability Control Method to Maintain Synchronization Stability of Wind Generation under Weak Grid |
| title_full_unstemmed | A Stability Control Method to Maintain Synchronization Stability of Wind Generation under Weak Grid |
| title_short | A Stability Control Method to Maintain Synchronization Stability of Wind Generation under Weak Grid |
| title_sort | stability control method to maintain synchronization stability of wind generation under weak grid |
| topic | wind generation weak grid synchronization stability coupling mechanism equivalent parallel compensation stability analysis |
| url | https://www.mdpi.com/1996-1073/17/17/4450 |
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