Review of transient control strategies for grid-forming converters under grid voltage sag conditions
As a large amount of renewable energy is integrated into the grid via power electronic converters，the power system is faced with challenges，such as reduced inertia，diminished disturbance resistance，and declining transient support capabilities. The stability of the renewable energy interconnected wit...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Electric Power Engineering Technology
2025-03-01
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| Series: | 电力工程技术 |
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| Online Access: | https://doi.org/10.12158/j.2096-3203.2025.02.006 |
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| author | Yuxuan LIN Wei LI Ling ZHU Chong REN |
| author_facet | Yuxuan LIN Wei LI Ling ZHU Chong REN |
| author_sort | Yuxuan LIN |
| collection | DOAJ |
| description | As a large amount of renewable energy is integrated into the grid via power electronic converters，the power system is faced with challenges，such as reduced inertia，diminished disturbance resistance，and declining transient support capabilities. The stability of the renewable energy interconnected with the grid and the capability of supporting the grid are enhanced by the autonomous synchronization and active support capacity of grid-forming converters. The grid-connected control strategy of grid-forming converters is closely related to the stability of the device and system under transient voltage disturbances. This paper focuses on disturbances caused by grid voltage sags and reviews the transient control strategies of grid-forming converters. Firstly，current synchronization control strategies of grid-forming converters are summarized. Next，the mechanism of overcurrent generation in grid-forming converters is revealed，and the overcurrent behavior and support characteristics of converters during transient periods are analyzed. Then，transient control strategies are classified into two major types，and the principles，research status，advantages and disadvantages of these two types of control strategies are comparatively discussed. Finally，future research directions for grid-connected issues of grid-forming converters in high-penetration renewable energy power systems are prospected. |
| format | Article |
| id | doaj-art-8799a43316e8485085156f89d52d08fa |
| institution | DOAJ |
| issn | 2096-3203 |
| language | zho |
| publishDate | 2025-03-01 |
| publisher | Editorial Department of Electric Power Engineering Technology |
| record_format | Article |
| series | 电力工程技术 |
| spelling | doaj-art-8799a43316e8485085156f89d52d08fa2025-08-20T03:03:11ZzhoEditorial Department of Electric Power Engineering Technology电力工程技术2096-32032025-03-01442556810.12158/j.2096-3203.2025.02.006linyuxuanReview of transient control strategies for grid-forming converters under grid voltage sag conditionsYuxuan LIN0Wei LI1Ling ZHU2Chong REN3NARI Group Corporation （State Grid Electric Power Research Institute），Nanjing 211106，ChinaNARI Group Corporation （State Grid Electric Power Research Institute），Nanjing 211106，ChinaNARI Group Corporation （State Grid Electric Power Research Institute），Nanjing 211106，ChinaNorthwest Branch of State Grid Corporation of China，Xi'an 710048，ChinaAs a large amount of renewable energy is integrated into the grid via power electronic converters，the power system is faced with challenges，such as reduced inertia，diminished disturbance resistance，and declining transient support capabilities. The stability of the renewable energy interconnected with the grid and the capability of supporting the grid are enhanced by the autonomous synchronization and active support capacity of grid-forming converters. The grid-connected control strategy of grid-forming converters is closely related to the stability of the device and system under transient voltage disturbances. This paper focuses on disturbances caused by grid voltage sags and reviews the transient control strategies of grid-forming converters. Firstly，current synchronization control strategies of grid-forming converters are summarized. Next，the mechanism of overcurrent generation in grid-forming converters is revealed，and the overcurrent behavior and support characteristics of converters during transient periods are analyzed. Then，transient control strategies are classified into two major types，and the principles，research status，advantages and disadvantages of these two types of control strategies are comparatively discussed. Finally，future research directions for grid-connected issues of grid-forming converters in high-penetration renewable energy power systems are prospected.https://doi.org/10.12158/j.2096-3203.2025.02.006grid-forming convertercurrent limiting controlvoltage supporttransient control strategyhigh penetration renewable energy power systemrenewable energy grid integration |
| spellingShingle | Yuxuan LIN Wei LI Ling ZHU Chong REN Review of transient control strategies for grid-forming converters under grid voltage sag conditions 电力工程技术 grid-forming converter current limiting control voltage support transient control strategy high penetration renewable energy power system renewable energy grid integration |
| title | Review of transient control strategies for grid-forming converters under grid voltage sag conditions |
| title_full | Review of transient control strategies for grid-forming converters under grid voltage sag conditions |
| title_fullStr | Review of transient control strategies for grid-forming converters under grid voltage sag conditions |
| title_full_unstemmed | Review of transient control strategies for grid-forming converters under grid voltage sag conditions |
| title_short | Review of transient control strategies for grid-forming converters under grid voltage sag conditions |
| title_sort | review of transient control strategies for grid forming converters under grid voltage sag conditions |
| topic | grid-forming converter current limiting control voltage support transient control strategy high penetration renewable energy power system renewable energy grid integration |
| url | https://doi.org/10.12158/j.2096-3203.2025.02.006 |
| work_keys_str_mv | AT yuxuanlin reviewoftransientcontrolstrategiesforgridformingconvertersundergridvoltagesagconditions AT weili reviewoftransientcontrolstrategiesforgridformingconvertersundergridvoltagesagconditions AT lingzhu reviewoftransientcontrolstrategiesforgridformingconvertersundergridvoltagesagconditions AT chongren reviewoftransientcontrolstrategiesforgridformingconvertersundergridvoltagesagconditions |