基于Matlab/Simulink的风力机性能仿真研究

随着风力发电技术的发展，变速风力发电技术成为了风力发电发展的趋势。风力机作为变速风力发电机组的重要部分，其性能影响到风力发电机组的整体性能。根据变速风力机的静态性能特点，采用Matlab／Simulink软件对其进行建模，并给变速风力发电机组风力机输入模拟变速风速进行仿真研究，给出了风力机的静态性能数据和仿真波形。结果表明：通过调节影响风力机性能的各因素，保持发电机的转速与主导风速之间特定的最优比例系数，使得风力机保持在最佳叶尖速比下运行，跟随变速风速可实现最大风能捕获；对变速风力机的静态性能研究建模方法是正确可行的。

Simulation of wind turbine performance using Matlab/Simulink

With the development of wind power generation technology, variable-speed wind power generation technology becomes the general direction of development in this field. The wind turbine is the key component in the variable-speed wind power generation system, whose performance influences the total system. According to the static performance features of the wind turbine, a simulation model of the variable-speed wind turbine was established using the Matlab/Simulink. Using this model, calculations were carried out with given variable wind speeds for simulation, and the static performance characteristics and waveforms of the wind turbine were obtained. The simulation results showed that by controlling the factors influencing wind turbine performance the wind turbine runs at an optimum ratio of speed to the current wind speed. The wind turbine keeps the optimum tip-speed ratio and therefore captures maximum wind power. In the meantime, the simulation results verify the practicability of the modeling in this paper.