A Theoretical and Experimental Study of a Laboratory Wind Turbine Emulator using DC-Motor Controlled by an FPGA-Based Approach

Abstract The aim of this study is to carry out a Wind Turbine Emulator (WTE) which represents the important hardware part to behave as a real wind turbine system with respect to the introduced wind timeseries for improving the wind power system technology control in laboratory. The proposed WTE consists of a variable speed drive which controls a DC motor as a prime mover coupled to a PMSG operated in open loop. The novelty appears in the modeling and configuration of wind timeseries, aerodynamic and mechanical aspects of the wind turbine and its control strategy by using Xilinx System Generator (XSG) as a dataflow design tool based on graphical user interface Simulink which ensures a rapid architectures prototyping. Moreover, the dynamic performance of the modeled system under Matlab/XSG environment is presented and discussed. The motor drive is performed by a DC/DC buck converter controlled by PWM strategy implemented on FPGA board. An experimental platform of the entire wind energy conversion system is built. Experimental results verified and validated the wind turbine emulator operation using a variable wind speed.

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