信息与控制2017，Vol.46Issue(6)：646-652,7.DOI:10.13976/j.cnki.xk.2017.0646
基于双层凸多面体的风力机线性变参数主动容错控制
Wind Turbine LPV Active Fault-tolerant Control Base on the Double Convex Polyhedron
摘要
Abstract
In view of the time-varying bias faults of a wind turbine pitch angle system,we propose an adaptive convex polyhedron observer and an improved fault estimation algorithm on the basis of the traditional fault observer.We design a linear parameter varying (LPV) fault-tolerant controller of the double convex polyhedron on the premise of obtaining the estimated fault signal by combining real-time measurable scheduling variables and the linear matrix inequality technique.This method not only eliminates the linearization error of the traditional model of the single-layer structure but also improves the linearization degree of the system and guarantees the inhibiting effect of the controller on faults.We design the fault diagnosis observer and the output feedback fault-tolerant controller separately and consider their performances simultaneously to simplify design procedures.Simulation results show the effectiveness of the proposed method.关键词
时变故障/双层凸多面体/容错控制/LPV(linear parameter varying)/风力机Key words
time-varying fault/double convex polyhedron/fault tolerant/LPV (linear parameter varying)/wind turbine分类
信息技术与安全科学引用本文复制引用
吴定会,张晓林,沈艳霞..基于双层凸多面体的风力机线性变参数主动容错控制[J].信息与控制,2017,46(6):646-652,7.基金项目
国家自然科学基金资助项目(61572237) （61572237）
