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6 February 2024 Study on the operation of VSG islanded microgrids with unbalanced loads
Chunxue Wen, Sai Yang, Peng Wang, Jianlin Li
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Proceedings Volume 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023); 1297971 (2024) https://doi.org/10.1117/12.3015470
Event: 9th International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 2023, Guilin, China
Abstract
When the Virtual Synchronous Generator (VSG) is operated in islanded microgrid mode, the load carried by the VSG has a large impact on its output voltage, and there are problems of unbalanced output voltage and current if traditional control strategies are used. This article investigates the unbalanced voltage mechanism and proposes a voltage control loop combining a Quasi-Proportional Resonant (QPR) controller and a Proportional-Integral (PI) controller and analyses the stability of the newly established voltage control loop. Finally, the effectiveness of the control strategy was verified by Simulink simulation. From the results, it can be seen that the new control loop has a good suppression effect on voltage unbalance.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Chunxue Wen, Sai Yang, Peng Wang, and Jianlin Li "Study on the operation of VSG islanded microgrids with unbalanced loads", Proc. SPIE 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 1297971 (6 February 2024); https://doi.org/10.1117/12.3015470
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KEYWORDS
Control systems
Device simulation
Tunable filters
Power grids
Simulink
Standards development
System integration
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