摘要
针对变速风力发电系统提出了一种自适应反馈线性化控制器。该控制器通过对涡轮轴转矩的自适应估算,将其作为参考转矩提供给磁场定向控制的鼠笼式异步电机。异步电机通过变速箱与涡轮轴相连接。反馈线性化控制器用于保持涡轮转速与用户自定义的辅助输入量的线性关系。控制器的参考转速是风速的函数,它的选择随风力状况的变化而变化,目的是为了获取最大风能。仿真结果表明,该控制器能够获取最大可用风能,控制效果良好。
An adaptive feedback linearization controller for a variable speed wind turbine system is proposed. The controller provides an adaptive estimate of the turbine shaft torque as a torque reference for a field oriented squirrel cage induction machine. The induction machine is connected through a gearbox to the turbine shaft. The feedback linearization controller ensures that a linear relationship is maintained between the turbine speed and an additional user defined input. The speed reference for the controller is a function of the wind speed and is chosen to ensure maximum energy capture from the wind for varying wind conditions. Simulation results show the effectiveness of such a controller in capturing maximum available energy from the wind.
出处
《控制工程》
CSCD
2004年第1期76-78,共3页
Control Engineering of China
