Overview of Frequency-Control Technologies for a VSC-HVDC-Integrated Wind Farm
In modern power systems, the increasing penetration of renewable energy resources has reduced the overall system inertia. However, the intermittent nature of wind power generation reduces frequency stability, which is a crucial issue. Consequently, modern power systems require that renewable energy...
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| Format: | Article |
| Language: | English |
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IEEE
2021-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9507468/ |
| _version_ | 1818694056778137600 |
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| author | Chung-Han Lin Yuan-Kang Wu |
| author_facet | Chung-Han Lin Yuan-Kang Wu |
| author_sort | Chung-Han Lin |
| collection | DOAJ |
| description | In modern power systems, the increasing penetration of renewable energy resources has reduced the overall system inertia. However, the intermittent nature of wind power generation reduces frequency stability, which is a crucial issue. Consequently, modern power systems require that renewable energy sources, such as offshore wind farms, support the frequency regulation. High voltage direct current (HVDC) systems based on voltage source converters (VSCs) are currently being used to connect wind farms with the main grid. By adjusting the DC-link voltage of the VSC-HVDC, a capacitor can absorb or release energy to provide frequency support. In addition, the VSC-HVDC system can coordinate wind farms to support frequency regulation and thereby achieve better performance. Thus, this paper reviews and compares various frequency-control strategies for a VSC-HVDC-connected wind farm. This work implements in PSCAD/EMTDC a simulation of typical frequency-control techniques to verify their effectiveness and robustness. Furthermore, this paper shows the advantages and drawbacks of each frequency regulation method. Other auxiliary services for supporting frequency regulation, such as by energy storage systems, are also discussed. Finally, this paper provides complete recommendations for frequency regulation techniques for VSC-HVDC-integrated wind farms. |
| first_indexed | 2024-12-17T13:23:31Z |
| format | Article |
| id | doaj.art-833864d98e764743b9ddc32242d5df00 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-17T13:23:31Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-833864d98e764743b9ddc32242d5df002022-12-21T21:46:48ZengIEEEIEEE Access2169-35362021-01-01911289311292110.1109/ACCESS.2021.31028299507468Overview of Frequency-Control Technologies for a VSC-HVDC-Integrated Wind FarmChung-Han Lin0Yuan-Kang Wu1https://orcid.org/0000-0002-3707-4770Department of Electrical Engineering, National Chung-Cheng University, Minxiong, Chiayi, TaiwanDepartment of Electrical Engineering, National Chung-Cheng University, Minxiong, Chiayi, TaiwanIn modern power systems, the increasing penetration of renewable energy resources has reduced the overall system inertia. However, the intermittent nature of wind power generation reduces frequency stability, which is a crucial issue. Consequently, modern power systems require that renewable energy sources, such as offshore wind farms, support the frequency regulation. High voltage direct current (HVDC) systems based on voltage source converters (VSCs) are currently being used to connect wind farms with the main grid. By adjusting the DC-link voltage of the VSC-HVDC, a capacitor can absorb or release energy to provide frequency support. In addition, the VSC-HVDC system can coordinate wind farms to support frequency regulation and thereby achieve better performance. Thus, this paper reviews and compares various frequency-control strategies for a VSC-HVDC-connected wind farm. This work implements in PSCAD/EMTDC a simulation of typical frequency-control techniques to verify their effectiveness and robustness. Furthermore, this paper shows the advantages and drawbacks of each frequency regulation method. Other auxiliary services for supporting frequency regulation, such as by energy storage systems, are also discussed. Finally, this paper provides complete recommendations for frequency regulation techniques for VSC-HVDC-integrated wind farms.https://ieeexplore.ieee.org/document/9507468/Renewable energyinertiaenergy storage systemfrequency regulationoffshore wind farmVSC-HVDC |
| spellingShingle | Chung-Han Lin Yuan-Kang Wu Overview of Frequency-Control Technologies for a VSC-HVDC-Integrated Wind Farm IEEE Access Renewable energy inertia energy storage system frequency regulation offshore wind farm VSC-HVDC |
| title | Overview of Frequency-Control Technologies for a VSC-HVDC-Integrated Wind Farm |
| title_full | Overview of Frequency-Control Technologies for a VSC-HVDC-Integrated Wind Farm |
| title_fullStr | Overview of Frequency-Control Technologies for a VSC-HVDC-Integrated Wind Farm |
| title_full_unstemmed | Overview of Frequency-Control Technologies for a VSC-HVDC-Integrated Wind Farm |
| title_short | Overview of Frequency-Control Technologies for a VSC-HVDC-Integrated Wind Farm |
| title_sort | overview of frequency control technologies for a vsc hvdc integrated wind farm |
| topic | Renewable energy inertia energy storage system frequency regulation offshore wind farm VSC-HVDC |
| url | https://ieeexplore.ieee.org/document/9507468/ |
| work_keys_str_mv | AT chunghanlin overviewoffrequencycontroltechnologiesforavschvdcintegratedwindfarm AT yuankangwu overviewoffrequencycontroltechnologiesforavschvdcintegratedwindfarm |