Stability analysis of voltage-source inverter under weak grid

Zhen Song; Hongtao Wang; Shihao Zhao; Xuemei Fan

doi:10.1117/12.3004244

25 September 2023 Stability analysis of voltage-source inverter under weak grid

Zhen Song, Hongtao Wang, Shihao Zhao, Xuemei Fan

Proceedings Volume 12788, Second International Conference on Energy, Power, and Electrical Technology (ICEPET 2023); 1278839 (2023) https://doi.org/10.1117/12.3004244
Event: Second International Conference on Energy, Power, and Electrical Technology (ICEPET 2023), 2023, Kuala Lumpur, Malaysia

Abstract

The large-scale access of new energy generation based on grid-connected inverters makes the grid have the characteristics of weak damping and low inertia, so the grid impedance is not negligible in most cases. As the power electronic interface between the new energy and the grid, the interaction between the inverter and the grid causes a series of oscillation problems. In this paper, the interaction between the voltage-source inverter (VSI) and the grid based on droop control is studied around the small-signal stability problem of the inverter after the new energy generation is connected to the weak grid. In this paper, the stability analysis of the VSI is carried out by establishing a state -space small-signal model, and the model is built in Matlab/simulink to verify the validity of the analysis results.

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

Citation Download Citation

Zhen Song, Hongtao Wang, Shihao Zhao, and Xuemei Fan "Stability analysis of voltage-source inverter under weak grid", Proc. SPIE 12788, Second International Conference on Energy, Power, and Electrical Technology (ICEPET 2023), 1278839 (25 September 2023); https://doi.org/10.1117/12.3004244

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