International Conference on Automation, Control Engineering and Computer Science (ACECS ) Proceedings of Engineering and Technology – PET Vol.20 pp.97-101 Copyright IPCO-2017 ISSN 2356-5608 Emulation of a Wind Turbine with a DC Motor controlled by Fuzzy Logic controller L. BENAAOUINATE 1, 2 , M. KHAFALLAH 1 , A. MESBAHI 1 , A. MARTINEZ 2 , T. BOURAGBA 2 1 Laboratory of Energy & Electrical Systems (LESE), Hassan ΙΙ University of Casablanca ENSEM, Casablanca-Morocco l.benaaouinate@ieee.org Mohamed.khafallah@uh2c.com abdelouahed.mesbahi@gmail.com 2 Laboratoire Energie Renouvelable Propre & Alternative (LERPA) EIGSI Casablanca, Maroc Andre.martinez@eigsi.fr Abstract— A Wind Turbine Emulator (WTE) is developed for testing Wind Energy Conversion Systems (WECS) control strategies. The configuration of the WTE consists of a permanent magnet DC motor controlled by Fuzzy Logic Controller (FLC). DC motor is used to generate speed and torque required by the generator (PMSG) for producing electrical power. The control of the DC motor is elaborated using Matlab/Simulink platform. Finally Results confirm that the WTE can perform satisfactorily under steady state wind speed profiles and it can provide all necessary parameters for the wind turbine system. Keywords— Wind Turbine Emulator (WTE); DC motor; Real Time Control; Fuzzy Logic Controller; Pitch Angle Control. I. INTRODUCTION Due to the increased integration of renewable energy sources in the world, a great deal of researches has been focused on better ways to exploit and generate that kind of energy for making wind turbine more efficient. Wind speed is not promising or reliable all the time, therefore it is difficult to use a real wind turbine in laboratory environment. So there is the need to build a WTE to simulate the steady-state and dynamic characteristics of the system in a controlled environment. WTE can produce the torque required by the electrical generator in a similar way as a real wind turbine. Moreover, it is an excellent tool for academic purposes such control, operation and characterization of a wind turbine. The literature review has a lot of studies done on wind turbine emulator either based on induction motor [18][19], permanent magnet synchronous machine (PMSM) [17] or DC motor [3][20]. The aim of this paper is to develop a useful WTE based on permanent magnet DC motor controlled by Fuzzy Logic Controller (FLC) to obtain the characteristics and the performances for applying wind power conversion researches. The FLC is chosen in this work for their high accuracy, fast dynamic response, stability, solving non-linear systems because it does not require a well-known system, ease of its modelling and its implementation. The FLC is used in the structure of the WTE for comparing the armature current, generating Pulse-Width Modulated (PWM) to the transistor of DC-DC converter and controlling the pitch angle. It is presented as an alternative for Proportional-Integral (PI) controllers currently used in wind turbine Pitch Angle Control. II. SUBSYSTEM MODELS A. Wind Speed Model The wind speed is modelled as the sum of several harmonics: The wind profile of the emulator will be represented by the following scalar function: Fig. 1 Wind speed Profile B. Wind Turbine Model The rotor aerodynamics are presented by the well-known mechanical power, it is expressed as: (1) (2)