Ali, M.A.S. Improved Transient Performance of a DFIG-Based Wind-Power System Using the Combined Control of Active Crowbars. Electricity2023, 4, 320-335.
Ali, M.A.S. Improved Transient Performance of a DFIG-Based Wind-Power System Using the Combined Control of Active Crowbars. Electricity 2023, 4, 320-335.
Ali, M.A.S. Improved Transient Performance of a DFIG-Based Wind-Power System Using the Combined Control of Active Crowbars. Electricity2023, 4, 320-335.
Ali, M.A.S. Improved Transient Performance of a DFIG-Based Wind-Power System Using the Combined Control of Active Crowbars. Electricity 2023, 4, 320-335.
Abstract
A significant electromotive force is induced in the rotor circuit of a doubly fed induction generator (DFIG) due to its high vulnerability to grid faults. Therefore, the system performance must be increased with appropriate control actions that can successfully offset such abnormalities in order to provide consistent and stable operations during grid disturbances. In this regard, this paper presents a solution based on a combination of an energy storage-based crowbar and a rotor-side crowbar that makes the effective transient current and voltage suppression for wind-driven DFIG possible. The core of the solution is its ability to restrict the transient rotor and stator overcurrents and DC-link overvoltages within their prescribed limits, aiming to protect the DFIG and power converters, and consequently, improve the system’ ability to ride-through faults. Further, the capacity of an energy storage device for transient suppression is estimated. Finally, simulation results show that the proposed approach is effective in achieving transient control objectives precisely and maintaining a stable grid connection during the faults.
Engineering, Electrical and Electronic Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
