This paper focuses on the control of double-fed induction generator’s (DFIG) powers (active and reactive) when it operates with parameters uncertainties in the structure of micro-grid. The control of the powers, transfer between the machine and the micro-grid, is assured by adjusting the rotor parameters and is ensured by the LADRC controller (linear active disturbances rejection control). The latter estimates and compensates the internal and external disturbances, which can be resumed in the parameters uncertainties. The robustness of the chosen controller in this work (LADRC) is evaluated by comparing with the proportional and integral (PI) controller under different point of operation against the simulation results given by the software MATLAB/Simulink. The results revealed that the performances achieved by the selected controller are more efficient than those of the conventional PI controller. This can be explained by the capacity of rejection of disturbances ensured by the LADRC.
[1]
Jovica V. Milanovic.
The influence of shaft spring constant uncertainty on torsional modes of turbogenerator
,
1998
.
[2]
Qing Zheng,et al.
On Active Disturbance Rejection Control;Stability Analysis and Applications in Disturbance Decoupling Control
,
2009
.
[3]
Longya Xu,et al.
Torque and reactive power control of a doubly-fed induction machine by position sensorless scheme
,
1994,
Proceedings of 1994 IEEE Industry Applications Society Annual Meeting.
[4]
G. Tapia,et al.
Modeling and control of a wind turbine driven doubly fed induction generator
,
2003
.
[5]
Gernot Herbst,et al.
A Simulative Study on Active Disturbance Rejection Control (ADRC) as a Control Tool for Practitioners
,
2013,
ArXiv.