摘要
建立了风力机运行特性的数学模型,在此基础上创建了风力机模拟系统。通过对比风力机与直流电动机模型的异同以及运行特性的相似性,提出基于BUCK斩波电路的直流电动机电流闭环控制系统的模型,并进行仿真分析。仿真结果表明,采用梯度下降法的自适应PI控制的风力机特性的模拟,比传统PI控制具有更高的精度及更快的响应速度,可方便应用于实验室环境下风力发电技术的研究。
It realized the mathematic model for acquiring the operation characteristics of wind turbine, and based on this model, it established the simulation system of wind turbine. By contrasting the differences and similarities of wind turbine and the model of DC motor and the similarities of their operational characteristic, this paper put forward the model of current closed-loop control system based on BUCK chopper circuit. Simulation experiments were carried out, and the result indicated that wind turbine simulation by adopting gradient descent based adaptive PI control is more accurate and responses more quickly than that by the traditional PI control so that the former can be conveniently used in the study of wind power generation in laboratory.
出处
《山西电力》
2012年第5期1-4,共4页
Shanxi Electric Power
关键词
风力发电
特性模拟
梯度下降法的自适应PI控制
BUCK电路
wind power generation
characteristic simulation
gradient descent based adaptive PI control
BUCK circuit
