Research and implementation of frequency control strategy of islanded microgrids rich in grid-connected small hydropower
Due to the weak network architecture of mountainous power grid rich in grid-connected small hydropower, once the small hydropower units operate independently as a network when the upper power grid fails and loses power, the reliability of the power supply could be effectively improved. To cope with...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-12-01
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| Series: | Energy Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352484723003724 |
| _version_ | 1797781837327630336 |
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| author | Gan Wang Zhifeng Chen Zhidong Wang Zhiheng Xu Zifan Zhang Yifeng Liu Xiaodie Zhang |
| author_facet | Gan Wang Zhifeng Chen Zhidong Wang Zhiheng Xu Zifan Zhang Yifeng Liu Xiaodie Zhang |
| author_sort | Gan Wang |
| collection | DOAJ |
| description | Due to the weak network architecture of mountainous power grid rich in grid-connected small hydropower, once the small hydropower units operate independently as a network when the upper power grid fails and loses power, the reliability of the power supply could be effectively improved. To cope with the problem of insufficient frequency regulation capacity of small hydropower units and the large risk of separation fault, this paper proposes a piecewise variable coefficient PID control strategy which improves the speed regulation control strategy of hydropower units, and a joint frequency regulation strategy of hydropower energy storage is designed to optimize the system operation state. Based on the MATLAB simulation platform, a hydropower energy storage microgrid model of mountainous power grid was built to verify the effectiveness of the segmented variable parameter control strategy. Using the proposed control strategy, the hydropower intelligent control terminal was developed and put into application in a certain area of Guangdong. Through simulation analysis and engineering applications, the practicality of the application of device engineering is verified to have good application and promotion value for a multi-hydropower mountainous power grid. |
| first_indexed | 2024-03-13T00:02:36Z |
| format | Article |
| id | doaj.art-1c7efa65a541433fb56c01d9b31e1ee5 |
| institution | Directory Open Access Journal |
| issn | 2352-4847 |
| language | English |
| last_indexed | 2024-03-13T00:02:36Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Reports |
| spelling | doaj.art-1c7efa65a541433fb56c01d9b31e1ee52023-07-13T05:29:58ZengElsevierEnergy Reports2352-48472023-12-01950535063Research and implementation of frequency control strategy of islanded microgrids rich in grid-connected small hydropowerGan Wang0Zhifeng Chen1Zhidong Wang2Zhiheng Xu3Zifan Zhang4Yifeng Liu5Xiaodie Zhang6School of Electrical Engineering, Guangzhou City University of Technology, Guangzhou, 510800, ChinaSchool of Electrical Engineering, Guangzhou City University of Technology, Guangzhou, 510800, ChinaSchool of Electric Power Engineering, South China University of Technology, Guangzhou, 510641, China; Corresponding author.Grid Planning & Research Center, Guangdong Power Grid Co., Ltd., ChinaSchool of Electrical Engineering, Guangzhou City University of Technology, Guangzhou, 510800, ChinaSchool of Electrical Engineering, Guangzhou City University of Technology, Guangzhou, 510800, ChinaSchool of Electrical Engineering, Guangzhou City University of Technology, Guangzhou, 510800, ChinaDue to the weak network architecture of mountainous power grid rich in grid-connected small hydropower, once the small hydropower units operate independently as a network when the upper power grid fails and loses power, the reliability of the power supply could be effectively improved. To cope with the problem of insufficient frequency regulation capacity of small hydropower units and the large risk of separation fault, this paper proposes a piecewise variable coefficient PID control strategy which improves the speed regulation control strategy of hydropower units, and a joint frequency regulation strategy of hydropower energy storage is designed to optimize the system operation state. Based on the MATLAB simulation platform, a hydropower energy storage microgrid model of mountainous power grid was built to verify the effectiveness of the segmented variable parameter control strategy. Using the proposed control strategy, the hydropower intelligent control terminal was developed and put into application in a certain area of Guangdong. Through simulation analysis and engineering applications, the practicality of the application of device engineering is verified to have good application and promotion value for a multi-hydropower mountainous power grid.http://www.sciencedirect.com/science/article/pii/S2352484723003724Small hydropowerPiecewise variable coefficient PIDFrequency controlHydropower intelligent control terminal |
| spellingShingle | Gan Wang Zhifeng Chen Zhidong Wang Zhiheng Xu Zifan Zhang Yifeng Liu Xiaodie Zhang Research and implementation of frequency control strategy of islanded microgrids rich in grid-connected small hydropower Energy Reports Small hydropower Piecewise variable coefficient PID Frequency control Hydropower intelligent control terminal |
| title | Research and implementation of frequency control strategy of islanded microgrids rich in grid-connected small hydropower |
| title_full | Research and implementation of frequency control strategy of islanded microgrids rich in grid-connected small hydropower |
| title_fullStr | Research and implementation of frequency control strategy of islanded microgrids rich in grid-connected small hydropower |
| title_full_unstemmed | Research and implementation of frequency control strategy of islanded microgrids rich in grid-connected small hydropower |
| title_short | Research and implementation of frequency control strategy of islanded microgrids rich in grid-connected small hydropower |
| title_sort | research and implementation of frequency control strategy of islanded microgrids rich in grid connected small hydropower |
| topic | Small hydropower Piecewise variable coefficient PID Frequency control Hydropower intelligent control terminal |
| url | http://www.sciencedirect.com/science/article/pii/S2352484723003724 |
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