Coordinated frequency support strategy for VSC-HVDC integrated offshore wind farm system
The large-scale offshore wind power integrated into the onshore power grid through voltage source converter-based high voltage direct current (VSC-HVDC) system is unable to provide inertia response and frequency support to the onshore power grid. To improve the frequency characteristics of the recei...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-02-01
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| Series: | Frontiers in Energy Research |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2024.1351353/full |
| _version_ | 1797301378733834240 |
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| author | He Li Yuekai Li Yao Meng Kefei Yan |
| author_facet | He Li Yuekai Li Yao Meng Kefei Yan |
| author_sort | He Li |
| collection | DOAJ |
| description | The large-scale offshore wind power integrated into the onshore power grid through voltage source converter-based high voltage direct current (VSC-HVDC) system is unable to provide inertia response and frequency support to the onshore power grid. To improve the frequency characteristics of the receiving-end power grid, a coordinated frequency control strategy combining VSC-HVDC and offshore wind power is proposed. The onshore converter adopts virtual inertia control, which uses DC capacitors to absorb or release energy for inertia support after the receiving-end grid is disturbed. Wind-farm-side VSC (WFVSC) obtains the frequency signal of the receiving-end power grid by detecting the local DC voltage. The offshore wind farm (OWF) transfers the frequency deviation into an additional power signal and sends it to the power controller to adjust the output, thereby performing inertia and primary frequency response. In addition, a secondary frequency regulation strategy for wind farms has been designed to achieve non-difference frequency regulation of the receiving-end power grid. Finally, a simulation model of VSC-HVDC integrated OWF system is constructed to demonstrate the proposed coordinated frequency control strategy for VSC-HVDC and OWF. The results indicate that the proposed control strategy can effectively enhance the frequency support capability of the receiving-end power grid. |
| first_indexed | 2024-03-07T23:20:49Z |
| format | Article |
| id | doaj.art-434edafc914c4e3abcc7be61efd14e41 |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-03-07T23:20:49Z |
| publishDate | 2024-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-434edafc914c4e3abcc7be61efd14e412024-02-21T05:32:20ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2024-02-011210.3389/fenrg.2024.13513531351353Coordinated frequency support strategy for VSC-HVDC integrated offshore wind farm systemHe Li0Yuekai Li1Yao Meng2Kefei Yan3Tongliao Power Supply Company, State Grid East Inner Mongolia Electric Power Co., Ltd., Tongliao, Inner Mongolia Autonomous Region, ChinaKey Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology, Ministry of Education, Northeast Electric Power University, Jilin, ChinaTongliao Power Supply Company, State Grid East Inner Mongolia Electric Power Co., Ltd., Tongliao, Inner Mongolia Autonomous Region, ChinaKey Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology, Ministry of Education, Northeast Electric Power University, Jilin, ChinaThe large-scale offshore wind power integrated into the onshore power grid through voltage source converter-based high voltage direct current (VSC-HVDC) system is unable to provide inertia response and frequency support to the onshore power grid. To improve the frequency characteristics of the receiving-end power grid, a coordinated frequency control strategy combining VSC-HVDC and offshore wind power is proposed. The onshore converter adopts virtual inertia control, which uses DC capacitors to absorb or release energy for inertia support after the receiving-end grid is disturbed. Wind-farm-side VSC (WFVSC) obtains the frequency signal of the receiving-end power grid by detecting the local DC voltage. The offshore wind farm (OWF) transfers the frequency deviation into an additional power signal and sends it to the power controller to adjust the output, thereby performing inertia and primary frequency response. In addition, a secondary frequency regulation strategy for wind farms has been designed to achieve non-difference frequency regulation of the receiving-end power grid. Finally, a simulation model of VSC-HVDC integrated OWF system is constructed to demonstrate the proposed coordinated frequency control strategy for VSC-HVDC and OWF. The results indicate that the proposed control strategy can effectively enhance the frequency support capability of the receiving-end power grid.https://www.frontiersin.org/articles/10.3389/fenrg.2024.1351353/fulloffshore wind powervoltage source converter-based high voltage direct current (VSC-HVDC)inertia responsefrequency supportcoordinated frequency control strategy |
| spellingShingle | He Li Yuekai Li Yao Meng Kefei Yan Coordinated frequency support strategy for VSC-HVDC integrated offshore wind farm system Frontiers in Energy Research offshore wind power voltage source converter-based high voltage direct current (VSC-HVDC) inertia response frequency support coordinated frequency control strategy |
| title | Coordinated frequency support strategy for VSC-HVDC integrated offshore wind farm system |
| title_full | Coordinated frequency support strategy for VSC-HVDC integrated offshore wind farm system |
| title_fullStr | Coordinated frequency support strategy for VSC-HVDC integrated offshore wind farm system |
| title_full_unstemmed | Coordinated frequency support strategy for VSC-HVDC integrated offshore wind farm system |
| title_short | Coordinated frequency support strategy for VSC-HVDC integrated offshore wind farm system |
| title_sort | coordinated frequency support strategy for vsc hvdc integrated offshore wind farm system |
| topic | offshore wind power voltage source converter-based high voltage direct current (VSC-HVDC) inertia response frequency support coordinated frequency control strategy |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2024.1351353/full |
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