基于零处理的联合式风力机LPV容错控制器设计  

Design of LPV Fault Tolerant Controller for Wind Turbine Based on Combined Zero-process

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)

机构地区：[1]江南大学轻工过程先进控制教育部重点实验室

出　　处：《控制工程》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)

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.

关 键 词：零处理 LPV 容错控制 联合式 双层凸多面体 

分 类 号：TP273.4[自动化与计算机技术—检测技术与自动化装置]