摘要
针对风力机系统多个桨距角传感器故障问题,提出基于零处理的联合式双层凸多面体(Linear Parameter Varying,LPV)容错控制器设计方法。首先通过对传统的风力机LPV模型的凸多面体顶点进行优化,构建出双层LPV模型,然后利用联合式的思想以及零处理的方法逐一设计各个子控制器,将各个子控制器凸结合得到最终控制器。该设计方法鲜明简洁,减小了模型的线性化偏差,解决了风力机系统多个桨距角故障的容错控制问题,保障了风力机的稳定运行。
A fault tolerant method of combined double-layer convex polyhedron linear parameter varying(LPV)based on the zero processing is proposed in addressing the problem of pitch-angle sensors malfunction.The traditional LPV model is convert to the double-layer LPV model by optimizing its convex polyhedron vertices at first.Then,the combined thinking and zero processing are employed to design each sub-controller of the system,and the final controller is obtained from the combination of these sub-controllers.This approach solves the fault-tolerant control problem of pitch angles malfunction with reducing the linear deviation of LPV model in a concise way,which guarantees the stable operation of the wind turbine.
作者
吴定会
郑洋
黄旭
WU Ding-hui;ZHENG Yang;HUANG Xu(Key Laboratory of Advanced Process Control for Light Industry,Jiangnan University,Wuxi 214122,China)
出处
《控制工程》
CSCD
北大核心
2019年第11期2086-2092,共7页
Control Engineering of China
基金
国家自然科学基金项目(61572237)
关键词
零处理
LPV
容错控制
联合式
双层凸多面体
Zero processing
LPV
fault tolerant control
combined
double-layer convex polyhedron