摘要
针对风力发电机组在外界不定因素干扰下稳定性差的问题,通过自适应鲁棒控制方法,对风机功率输出稳定追踪问题进行了研究和验证。建立了具有不确定项的非线性数学模型,采用自适应鲁棒自调节的方法设计自适应律和控制器。实验证明风机系统在参数变化或受到外界干扰影响时,所设计的自适应控制器能使系统快速地追踪到期望曲线且比PID控制的精度高。
In view of the problem of poor stability of wind turbine in the case of external intert）rence, the adaptive robust control method is used to study the power output stable tracking problem of variable-speed wind turbine. The nonlinear mathematical model with uncertain terms is established and the adaptive law and the controller are designed by using the method of adaptive robust control. The experiments show that the designed adaptive controller enables the system to quickly track the expected curve and has high accuracy than PD control when the system parameter is changed or the system is interfered by external factor.
出处
《水力发电》
北大核心
2016年第9期104-107,共4页
Water Power
关键词
变桨系统
追踪控制
鲁棒自适应控制
控制器
风力发电机
variable-speed system
tracking control
adaptive robust control
controller
wind turbine
