控制理论与应用Issue(6)：795-804,10.DOI:10.7641/CTA.2017.70353
基于鲁棒滑模观测器的多电机卷绕系统故障检测和隔离
Fault detection and isolation for multi-motor web-winding system via robust sliding mode observers
摘要
Abstract
The robust fault detection and isolation strategy for multi-motor web-winding system with changing oper-ating environment is put forward. Firstly, taking into account the changes of the friction coefficients, Young’s modulus, radii and the moments of the roller, etc. which are caused by the changing operating environment, the unknown input disturbance is introduced to describe the system parameters uncertainties of the multi-motor web-winding system, based on which a generalized nonlinear system dynamic model with actuator faults and uncertainties is constructed. Next, a robust sliding mode observer is developed as fault detection observer to detect actuator faults. Furthermore, multi-observers are used for the multi actuator faults isolation purpose. Then, according to the Lyapunov theory, the sufficient conditions of exponential convergence for the designed observers are derived. Meanwhile, the observer gain matrix is presented. Finally, the simulation is conducted to verify the robustness and effectiveness of the proposed method.关键词
多电机卷绕系统/滑模观测器/故障检测/故障隔离Key words
multi-motor web-winding system/sliding mode observers/fault detection/fault isolation分类
信息技术与安全科学引用本文复制引用
楚晓艳,年晓红,刘静静..基于鲁棒滑模观测器的多电机卷绕系统故障检测和隔离[J].控制理论与应用,2018,(6):795-804,10.基金项目
国家自然科学基金项目(61473314, 61403425, 61621062, 61321003),中南大学中央高校基本科研业务费专项资金(2017zzts130)资助. Supported by the National Natural Science Foundation of China (61473314, 61403425, 61621062, 61321003) and the Fundamental Research Funds for the Central Universities of Central South University (2017zzts130). （61473314, 61403425, 61621062, 61321003）
