Linear active disturbances rejection control (LADRC) applied for wind turbine DFIG based operating in primary frequency control for a micro-grid

The objective of this paper is to simulate the vector control of a double-fed induction generator (DFIG), when it is operating in afrequency control systemfor the micro-grid structure. The control is provided by the linear active disturbances rejection control, (LADRC) controller, which has several benefits over the conventional PI controller such as the estimation and compensation in real time of the internal and external disturbances, which can be summarized in the parameters uncertainties. To ensure the performances and achieve the advantages of the LADRC controller, in case of primary frequency control, the results are compared with the conventional PI by a simulation in MATLAB/Simulink. The results obtained have shown that the LADRC controller is much more efficient compared to a conventional PI controller in terms of control. Finally, the primary frequency control can be better applied with this type of controller which ensures a good dynamic frequency support and a reduction of the frequency variations. © 2017 Praise Worthy Prize S.r.l. - All rights reserved.