A combined regulation method of transient power angle stability control and fault current suppression for VSG
When a serious grid fault occurs, a virtual synchronous generator (VSG) tends to lose transient power angle stability (TPAS) and cause the fault current to exceed the limit. Most existing research usually neglects the inherent relationship between transient power angle instability (TPAI) and fault o...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-02-01
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| Series: | International Journal of Electrical Power & Energy Systems |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142061523007597 |
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| author | Wanli Yang Chunming Tu Fan Xiao Qi Guo |
| author_facet | Wanli Yang Chunming Tu Fan Xiao Qi Guo |
| author_sort | Wanli Yang |
| collection | DOAJ |
| description | When a serious grid fault occurs, a virtual synchronous generator (VSG) tends to lose transient power angle stability (TPAS) and cause the fault current to exceed the limit. Most existing research usually neglects the inherent relationship between transient power angle instability (TPAI) and fault over-current (FOC), which leads to the two problems being solved separately rather than simultaneously. In this paper, the transient power angle and fault current characteristics of VSG are first studied, and the causes and influencing factors of TPAI and FOC are explored. Then, the TPAS analysis is carried out based on the phase portrait theory. A TPAS control method for VSG considering fault current suppression (FCS) is proposed. This method is fulfilled by the combined regulation of active power reference and reactive voltage regulation coefficient, in which the reference and coefficient can be adjusted adaptively according to different fault degrees and application scenarios. In addition, a quasi-static approximate (QSA)virtual inductance is introduced to limit the instantaneous inrush current (IIC). The proposed method achieves both the TPAS and FCS at the same time during the fault. Finally, simulations and experiments verify the correctness of the theoretical analysis and the proposed method. |
| format | Article |
| id | doaj-art-68e3d1ebdfe9469683f72599b05e1eb3 |
| institution | OA Journals |
| issn | 0142-0615 |
| language | English |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Electrical Power & Energy Systems |
| spelling | doaj-art-68e3d1ebdfe9469683f72599b05e1eb32025-08-20T02:23:31ZengElsevierInternational Journal of Electrical Power & Energy Systems0142-06152024-02-0115610970210.1016/j.ijepes.2023.109702A combined regulation method of transient power angle stability control and fault current suppression for VSGWanli Yang0Chunming Tu1Fan Xiao2Qi Guo3Corresponding author.; National Electric Power Conversion and Control Engineering Technology Research Central, Hunan University, Changsha 410082, ChinaNational Electric Power Conversion and Control Engineering Technology Research Central, Hunan University, Changsha 410082, ChinaNational Electric Power Conversion and Control Engineering Technology Research Central, Hunan University, Changsha 410082, ChinaNational Electric Power Conversion and Control Engineering Technology Research Central, Hunan University, Changsha 410082, ChinaWhen a serious grid fault occurs, a virtual synchronous generator (VSG) tends to lose transient power angle stability (TPAS) and cause the fault current to exceed the limit. Most existing research usually neglects the inherent relationship between transient power angle instability (TPAI) and fault over-current (FOC), which leads to the two problems being solved separately rather than simultaneously. In this paper, the transient power angle and fault current characteristics of VSG are first studied, and the causes and influencing factors of TPAI and FOC are explored. Then, the TPAS analysis is carried out based on the phase portrait theory. A TPAS control method for VSG considering fault current suppression (FCS) is proposed. This method is fulfilled by the combined regulation of active power reference and reactive voltage regulation coefficient, in which the reference and coefficient can be adjusted adaptively according to different fault degrees and application scenarios. In addition, a quasi-static approximate (QSA)virtual inductance is introduced to limit the instantaneous inrush current (IIC). The proposed method achieves both the TPAS and FCS at the same time during the fault. Finally, simulations and experiments verify the correctness of the theoretical analysis and the proposed method.http://www.sciencedirect.com/science/article/pii/S0142061523007597Virtual synchronous generatorSymmetrical short-circuit faultTransient power angle stability controlFault current limitationCombined regulation |
| spellingShingle | Wanli Yang Chunming Tu Fan Xiao Qi Guo A combined regulation method of transient power angle stability control and fault current suppression for VSG International Journal of Electrical Power & Energy Systems Virtual synchronous generator Symmetrical short-circuit fault Transient power angle stability control Fault current limitation Combined regulation |
| title | A combined regulation method of transient power angle stability control and fault current suppression for VSG |
| title_full | A combined regulation method of transient power angle stability control and fault current suppression for VSG |
| title_fullStr | A combined regulation method of transient power angle stability control and fault current suppression for VSG |
| title_full_unstemmed | A combined regulation method of transient power angle stability control and fault current suppression for VSG |
| title_short | A combined regulation method of transient power angle stability control and fault current suppression for VSG |
| title_sort | combined regulation method of transient power angle stability control and fault current suppression for vsg |
| topic | Virtual synchronous generator Symmetrical short-circuit fault Transient power angle stability control Fault current limitation Combined regulation |
| url | http://www.sciencedirect.com/science/article/pii/S0142061523007597 |
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