Journal of Chaohu University ›› 2019, Vol. 21 ›› Issue (3): 89-92.doi: 10.12152/j.issn.1672-2868.2019.03.012
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Abstract: Low voltage ride through capability of wind turbine is a necessary condition for large-scale grid connected operation. It is the guarantee that the wind turbine has the capability of continuous operation. In this paper, the energy dissipation Crowbar circuit is used to study the low voltage ride through capacity of wind turbine, and the simulation analysis is carried out by using the MATLAB/Simulink toolbox. The simulation results show that the energy-dissipating Crowbar circuit can effectively protect the over-voltage of DC-link and realize the requirement of LVRT. The scheme has simple circuit topology and high reliability.
