Converter control strategy for low-voltage AC-DC hybrid microgrid

Wendi Zhang; Qigong Chen

doi:10.1117/12.3010590

1 December 2023 Converter control strategy for low-voltage AC-DC hybrid microgrid

Wendi Zhang, Qigong Chen

Proceedings Volume 12940, Third International Conference on Control and Intelligent Robotics (ICCIR 2023); 129400E (2023) https://doi.org/10.1117/12.3010590
Event: Third International Conference on Control and Intelligent Robotics (ICCIR 2023), 2023, Sipsongpanna, China

Abstract

In low-voltage AC-DC hybrid microgrid, power fluctuation is caused by load switching. In order to ensure the stable operation of microgrid, a control strategy for interconnecting converters in low-voltage microgrid is proposed. Aiming at the low-voltage microgrid, the difference between its operation characteristics and the traditional microgrid is analyzed, and the topology structure and sagging characteristics of the low-voltage microgrid are studied. The characteristics of AC and DC side voltages are obtained by standard processing on both sides of the subnet voltage, and the working interval of the interconnection converter is redivided to cope with the power transmission direction under different subnet states. For the frequent switching problem that may occur in the working interval of the interconnected converter, the action threshold is added to control its switching state. Finally, a simulation model is established in Matlab/Simulink to verify the feasibility of the proposed control strategy.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Wendi Zhang and Qigong Chen "Converter control strategy for low-voltage AC-DC hybrid microgrid", Proc. SPIE 12940, Third International Conference on Control and Intelligent Robotics (ICCIR 2023), 129400E (1 December 2023); https://doi.org/10.1117/12.3010590

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