International Journal of Power Electronics and Drive System (IJPEDS)
Vol. 10, No. 2, June 2019, pp. 1049~1058
ISSN: 2088-8694, DOI: 10.11591/ijpeds.v10.i2.pp1049-1058 1049
Journal homepage: http://iaescore.com/journals/index.php/IJPEDS
Primary frequency control applied to the wind turbine based on
the DFIG controlled by the ADRC
Issam Minka
1
, Ahmed Essadki
2
, Sara Mensou
3
, Tamou Nasser
4
1,2,3
Electrical Engineering, Department of ENSET, Mohammed V University, Morocco
4
Department Communication Networks, Department of ENSIAS, Mohammed V University, Morocco
Article Info ABSTRACT
Article history:
Received Dec 7, 2018
Revised Feb 27, 2019
Accepted Mar 10, 2019
In this paper, we study the primary frequency control that allows the variable
speed Aeolian to participate in the frequency regulation when a failure
affects the network frequency. This method based on the control of the
generator rotational speed or the control of pitch angle makes it possible to
force the wind turbine to produce less power than its maximum available
power, consequently we will create an active power reserve. This wind
turbine must inject into the grid a part of its power reserve when the
frequency drops, in contrary the wind turbine reserves more of energy. So,
this work presents the performances of this control strategy for the different
wind speed value. The results are obtained by a simulation in the
MATLAB/SIMULINK environment.
Keywords:
ADRC
DFIG
MPPT
Pitch angle control
Primary frequency control
Wind turbine
Copyright © 2019 Institute of Advanced Engineering and Science.
All rights reserved.
Corresponding Author:
Issam Minka,
Department of Electrical Engineering, ENSET
Mohammed V University Rabat, Morocco.
Email: issamminka@gmail.com
1. INTRODUCTION
Wind energy has experienced a strong development in the last decade in the world, which leads to
an increasing insertion of this energy in the electrical networks [1-4]. However, the intermittent nature and
irregularity of wind generation will impact the stability of the networks and the quality of energy produced
and provided to users [5-6]. This situation leads to the definition of new technical connection conditions
requiring new wind farms to contribute in the same way as conventional power plants, to the system services
of the electricity networks to which they are connected [5-7]. Among these services, the frequency
regulation of the network. So our goal is to synthesize a command to stabilize the frequency of the network
after a change of frequency caused by an imbalance between production and consumption at its reference
value. This control strategy is called the primary frequency control [6].
In this work we use the Active Disturbance Rejection Control (ADRC), which allowsthe stability of
the Wind Energy Conversion System (WECS) based on a Double Fed Induction Generator (DFIG), this
control is applied to the Rotor Side Converter (RSC) and the Grid Side Converter (GSC) as shown in the
Figure 1 [8-10]. Wealso study the frequency control strategy mentioned before in order to force the Aeolian
to participate in the frequency setting,according to the operating zone of the wind turbine two control
strategies are presented, the first one when the speed of rotation and the power do not exceed their maximum
values, so the control of the active power of the wind turbine is made by an action on the electromagnetic
torque and by the control of the turbine rotational speed,the second one when we have a high wind speed, the
control of power extracted from the wind is done by an action on the angle of orientation of the blades.
Finally we present the simulation results of these controls and their interpretations.