@article {Chakib2021320,
	title = {Contribution of Variable Speed Wind Turbine Generator Based on DFIG Using ADRC and RST Controllers to Frequency Regulation},
	journal = {International Journal of Renewable Energy Research},
	volume = {11},
	number = {1},
	year = {2021},
	note = {cited By 3},
	pages = {320-331},
	abstract = {In the interconnected power systems, there must always be a balance between the amount of electricity produced and the amount of electricity consumed in order to keep the grid frequency stable and nearby to its nominal value. Therefore, any change in consumption can lead to imbalance, instability, load shedding and system frequency disturbances. With the increase of wind energy penetration level in the electrical network, it has become necessary to make wind generators participate in frequency regulation. The fundamental objective of this research paper is to investigate the ability of wind turbine at variable speed equipped with doubly fed induction generator (DFIG) to contribute in the grid frequency regulation. For the purpose of the contribution in the frequency regulation, the wind turbine system must inject a supplementary power support into the electrical network. To do that, two control strategies are adopted: the first one is the synthetic inertia control which uses the kinetic energy reserved and stocked in the turbine and generator rotors of the wind system. The second one is the droop frequency control which includes the deloading method that allows to the VSWT to create a certain reserve active power. Then, each of these control techniques is implemented and their performances are evaluated in case of frequency variation. Moreover, the control structure that uses the combination of these two techniques is also implemented and studied. The active disturbance rejection control strategy (ADRC), the classical PI controller and the polynomial RST controller have been adopted to command the rotor side converter (RSC) of the DFIG which allows it to provide, in case of frequency fault, a support for the power system into the grid by adjusting the rotor speed. The performance of these controllers are tested and compared and the simulation is performed by MATLAB/Simulink simulation software. {\textcopyright} 2021, International Journal of Renewable Energy Research. All Rights Reserved.},
	keywords = {Active disturbances rejection controls, Asynchronous generators, Control strategies, Controllers, Deloading method, Disturbance rejection, Doubly fed induction generators, Droop control strategies, Electric fault currents, Electric load shedding, Electric machine control, Electric power generation, Electric power system control, Electric power transmission networks, Frequency regulations, Inertia control strategy, Kinetic energy, Kinetics, MATLAB, Software testing, Turbogenerators, Variable speed wind turbine system, Variable speed wind turbines, Wind power, Wind Turbine Generators, Wind turbine systems},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85104004530\&partnerID=40\&md5=b73f8dda0c74fb1904944b96c7b3b388},
	author = {Chakib, M. and Nasser, T. and Essadki, A.}
}
@conference {Chakib2021,
	title = {Participation in Microgrid Frequency Regulation of Variable Speed Wind Generator based on DFIG using ADRC Control Method},
	booktitle = {Proceedings of 2021 9th International Renewable and Sustainable Energy Conference, IRSEC 2021},
	year = {2021},
	note = {cited By 0},
	abstract = {The purpose of this paper is to investigate the ability of the wind energy conversion system (WECS) equipped with doubly fed induction generator (DFIG) to participate in the microgrid frequency regulation when there is an imbalance of power. In order to contribute in the system frequency stability, the WECS have to inject an additional active power support into the power system. To do that, an additional frequency regulation control methods have been adopted to change the reference value of the electromagnetic power of the DFIG. These control strategies are the synthetic inertia control and the droop control. Furthermore, an additional technic called automatic generation control (AGC) has been used for adjusting the power output of multiple generators in the microgrid in response to changes in the load. The role of the AGC is to restore frequency to its nominal value by using a supplementary integral controller. Moreover, the control of the wind turbine generator is necessary so that it can provide the requested power. We used the Active Disturbance Rejection Control (ADRC) method and in order to assess its performance, the ADRC strategy was compared to the classic PI controller. Modeling and simulation are carried out in MATLAB/Simulink environment. {\textcopyright} 2021 IEEE.},
	keywords = {Active disturbances rejection controls, Asynchronous generators, Automatic Generation, Automatic generation control, Control methods, Controllers, Disturbance rejection, Doubly fed induction generators, Droop control, Electric fault currents, Energy conversion, Frequency regulations, Generation controls, Inertia control, MATLAB, Microgrid, Microgrids, Wind power},
	doi = {10.1109/IRSEC53969.2021.9741195},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85128032003\&doi=10.1109\%2fIRSEC53969.2021.9741195\&partnerID=40\&md5=3a72d255c84742e1cfd84ad0d665fdbb},
	author = {Chakib, M. and Nasser, T. and Essadki, A.}
}
