A comprehensive control strategy for photovoltaic virtual synchronous generator considering frequency regulation capability
The existing photovoltaic frequency regulation strategies do not take into account the differences in the frequency regulation capability. So they cannot fully exploit the support capacity to the grid frequency. For the purpose of improving the control precision and regulation effect of PV, a compre...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-11-01
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| Series: | Energy Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352484722020662 |
| _version_ | 1797952784374431744 |
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| author | Zhaoxun Liu Liang Qin Shiqi Yang Yiyuan Zhou Qing Wang Jingwen Zheng Kaipei Liu |
| author_facet | Zhaoxun Liu Liang Qin Shiqi Yang Yiyuan Zhou Qing Wang Jingwen Zheng Kaipei Liu |
| author_sort | Zhaoxun Liu |
| collection | DOAJ |
| description | The existing photovoltaic frequency regulation strategies do not take into account the differences in the frequency regulation capability. So they cannot fully exploit the support capacity to the grid frequency. For the purpose of improving the control precision and regulation effect of PV, a comprehensive control strategy for photovoltaic virtual synchronous generator (PV-VSG) is proposed, which accurately considers the frequency regulation capability. First, the inertia regulation margin, power regulation speed and power regulation margin are taken as the evaluation index of frequency regulation capability of PV. Then, the frequent deviation-free control strategy with integral link and the multiple control modes switching strategy are proposed, whose control parameters are designed according to the frequency regulation capability. In the simulation verification, the proposed method reduces the frequency deviation by 0.11 Hz compared to existing strategies, and can quickly recover to the normal value. At the same time, the frequency regulation utilizes the capability of the PVs, which also validates the effectiveness of the proposed strategy. |
| first_indexed | 2024-04-10T22:52:32Z |
| format | Article |
| id | doaj.art-6572b23dcab9463e915bd3e0c3cdfdbc |
| institution | Directory Open Access Journal |
| issn | 2352-4847 |
| language | English |
| last_indexed | 2024-04-10T22:52:32Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Reports |
| spelling | doaj.art-6572b23dcab9463e915bd3e0c3cdfdbc2023-01-15T04:22:05ZengElsevierEnergy Reports2352-48472022-11-018153163A comprehensive control strategy for photovoltaic virtual synchronous generator considering frequency regulation capabilityZhaoxun Liu0Liang Qin1Shiqi Yang2Yiyuan Zhou3Qing Wang4Jingwen Zheng5Kaipei Liu6School of Electrical and Automation, Wuhan University, Wuhan 430072, ChinaSchool of Electrical and Automation, Wuhan University, Wuhan 430072, China; Corresponding author.School of Electrical and Automation, Wuhan University, Wuhan 430072, ChinaSchool of Electrical and Automation, Wuhan University, Wuhan 430072, ChinaEquipment Management Department, State Grid Corporation of China, Beijing 100031, ChinaElectric Power Research Institute, State Grid Hubei Electric Power Company, Wuhan 430077, ChinaSchool of Electrical and Automation, Wuhan University, Wuhan 430072, ChinaThe existing photovoltaic frequency regulation strategies do not take into account the differences in the frequency regulation capability. So they cannot fully exploit the support capacity to the grid frequency. For the purpose of improving the control precision and regulation effect of PV, a comprehensive control strategy for photovoltaic virtual synchronous generator (PV-VSG) is proposed, which accurately considers the frequency regulation capability. First, the inertia regulation margin, power regulation speed and power regulation margin are taken as the evaluation index of frequency regulation capability of PV. Then, the frequent deviation-free control strategy with integral link and the multiple control modes switching strategy are proposed, whose control parameters are designed according to the frequency regulation capability. In the simulation verification, the proposed method reduces the frequency deviation by 0.11 Hz compared to existing strategies, and can quickly recover to the normal value. At the same time, the frequency regulation utilizes the capability of the PVs, which also validates the effectiveness of the proposed strategy.http://www.sciencedirect.com/science/article/pii/S2352484722020662PV-VSGFrequency deviation-free controlFrequency regulation capacityCoordinated control |
| spellingShingle | Zhaoxun Liu Liang Qin Shiqi Yang Yiyuan Zhou Qing Wang Jingwen Zheng Kaipei Liu A comprehensive control strategy for photovoltaic virtual synchronous generator considering frequency regulation capability Energy Reports PV-VSG Frequency deviation-free control Frequency regulation capacity Coordinated control |
| title | A comprehensive control strategy for photovoltaic virtual synchronous generator considering frequency regulation capability |
| title_full | A comprehensive control strategy for photovoltaic virtual synchronous generator considering frequency regulation capability |
| title_fullStr | A comprehensive control strategy for photovoltaic virtual synchronous generator considering frequency regulation capability |
| title_full_unstemmed | A comprehensive control strategy for photovoltaic virtual synchronous generator considering frequency regulation capability |
| title_short | A comprehensive control strategy for photovoltaic virtual synchronous generator considering frequency regulation capability |
| title_sort | comprehensive control strategy for photovoltaic virtual synchronous generator considering frequency regulation capability |
| topic | PV-VSG Frequency deviation-free control Frequency regulation capacity Coordinated control |
| url | http://www.sciencedirect.com/science/article/pii/S2352484722020662 |
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