Simulation of Imitation of the Characteristics of Wind Turbine Based on DC Motor with Matlab

In order to demonstrate the wind turbine in the laboratory, this paper first analyzed the operation principles, the power and torque characteristics of the wind turbine and direct current (DC) motor, then it investigated the operation characteristics of the wind turbine in contrast to those of the DC motor. The torque imitation scheme was provided, which imitates the torque characteristics of wind turbine by controlling the armature current of DC motor. The scheme has good performance and high feasibility. At last, the simulation of wind turbine operation characteristics was performed, the simulation was done under two typical conditions of variable wind speed and variable machine rotational velocity. The characteristics curves are presented in the paper. The simulation curves are highly consistent with theoretical datum. The torque imitation scheme of wind turbine characteristics can be conveniently used in the study of wind power generation in the laboratory.