Cooperative Control Strategy of Virtual Synchronous Generator Based on Optimal Damping Ratio
Wind power, photovoltaics and other new energy sources are connected to the grid on a large scale. The power electronic interface cannot provide inertia and damping support for the microgrid. The virtual synchronous generator technology is introduced into the inverter control system. Unlike the sync...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2021-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9303384/ |
| _version_ | 1818664414501404672 |
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| author | Shengwei Qu Zhijie Wang |
| author_facet | Shengwei Qu Zhijie Wang |
| author_sort | Shengwei Qu |
| collection | DOAJ |
| description | Wind power, photovoltaics and other new energy sources are connected to the grid on a large scale. The power electronic interface cannot provide inertia and damping support for the microgrid. The virtual synchronous generator technology is introduced into the inverter control system. Unlike the synchronous generator, its parameters are flexible and adjustable, which can enhance the robustness of the microgrid. This paper firstly analyzes the influence of the moment of inertia and damping on the system, it is based on the equivalent relationship between the three-phase inverter and the synchronous machine, combined with the VSG rotor motion equation, and conducts stability analysis based on the small signal model and root locus. Based on the existing control strategy, a virtual synchronous generator cooperative control strategy based on the optimal damping ratio is proposed. Finally, the VSG collaborative control model is built in MATLAB/Simlink, the experimental results show that the proposed control strategy effectively improves the transient performance of the VSG, the system active power overshoot is reduced from 5% to 0, and the frequency deviation peak is lowered from 0.174 Hz to 0.115 Hz, which confirms the effectiveness of the proposed control strategy. |
| first_indexed | 2024-12-17T05:32:22Z |
| format | Article |
| id | doaj.art-87193ca8b2e74878918b5e40722ea48e |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-17T05:32:22Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-87193ca8b2e74878918b5e40722ea48e2022-12-21T22:01:41ZengIEEEIEEE Access2169-35362021-01-01970971910.1109/ACCESS.2020.30466269303384Cooperative Control Strategy of Virtual Synchronous Generator Based on Optimal Damping RatioShengwei Qu0https://orcid.org/0000-0002-1133-0764Zhijie Wang1https://orcid.org/0000-0003-4419-0697College of Electrical Engineering, Shanghai Dianji University, Shanghai, ChinaCollege of Electrical Engineering, Shanghai Dianji University, Shanghai, ChinaWind power, photovoltaics and other new energy sources are connected to the grid on a large scale. The power electronic interface cannot provide inertia and damping support for the microgrid. The virtual synchronous generator technology is introduced into the inverter control system. Unlike the synchronous generator, its parameters are flexible and adjustable, which can enhance the robustness of the microgrid. This paper firstly analyzes the influence of the moment of inertia and damping on the system, it is based on the equivalent relationship between the three-phase inverter and the synchronous machine, combined with the VSG rotor motion equation, and conducts stability analysis based on the small signal model and root locus. Based on the existing control strategy, a virtual synchronous generator cooperative control strategy based on the optimal damping ratio is proposed. Finally, the VSG collaborative control model is built in MATLAB/Simlink, the experimental results show that the proposed control strategy effectively improves the transient performance of the VSG, the system active power overshoot is reduced from 5% to 0, and the frequency deviation peak is lowered from 0.174 Hz to 0.115 Hz, which confirms the effectiveness of the proposed control strategy.https://ieeexplore.ieee.org/document/9303384/Microgridvirtual synchronous generatorinertiadampingcooperative control |
| spellingShingle | Shengwei Qu Zhijie Wang Cooperative Control Strategy of Virtual Synchronous Generator Based on Optimal Damping Ratio IEEE Access Microgrid virtual synchronous generator inertia damping cooperative control |
| title | Cooperative Control Strategy of Virtual Synchronous Generator Based on Optimal Damping Ratio |
| title_full | Cooperative Control Strategy of Virtual Synchronous Generator Based on Optimal Damping Ratio |
| title_fullStr | Cooperative Control Strategy of Virtual Synchronous Generator Based on Optimal Damping Ratio |
| title_full_unstemmed | Cooperative Control Strategy of Virtual Synchronous Generator Based on Optimal Damping Ratio |
| title_short | Cooperative Control Strategy of Virtual Synchronous Generator Based on Optimal Damping Ratio |
| title_sort | cooperative control strategy of virtual synchronous generator based on optimal damping ratio |
| topic | Microgrid virtual synchronous generator inertia damping cooperative control |
| url | https://ieeexplore.ieee.org/document/9303384/ |
| work_keys_str_mv | AT shengweiqu cooperativecontrolstrategyofvirtualsynchronousgeneratorbasedonoptimaldampingratio AT zhijiewang cooperativecontrolstrategyofvirtualsynchronousgeneratorbasedonoptimaldampingratio |