机械科学与技术2025，Vol.44Issue(10)：1820-1827,8.DOI:10.13433/j.cnki.1003-8728.20230362
飞翼飞机非线性电动舵回路鲁棒滑模故障估计观测器设计
Robust Fault Reconstruction Siding-mode Observer Design for Flying-wing Aircraft Nonlinear Electro-hydro Actuator
刘聪 1钱坤 1丁奇1
作者信息
- 1. 空军工程大学 航空机务士官学校,河南 信阳 464000
- 折叠
摘要
Abstract
The robust sliding mode observer for nonlinear actuator loop of flying wing aircraft is proposed in this paper,which is used to estimate the actuator faults.Firstly,the nonlinear characteristic of electro-hydro actuator loop is analyzed,considering the fault types and reason,the nonlinear fault model of actuator loop is built.Then,the main design procedure of robust sliding mode observer is given,the optimization scheme is provided considering the nonlinearities in the actuator loop,and the observer gain design method is provided through convex optimization procedure under linear matrix inequalities;meanwhile,the case that the upper bound of fault unknown is considered,and the adaptive law is added in the sliding mode gain,thus,the sliding mode motion can reach and maintain on the sliding mode surface in limited time.Finally,the equal error injection concept is provided to estimate the unknown faults of actuator loop,and the numerical example is provided to demonstrate the effectiveness of the proposed method in this paper.关键词
非线性/舵回路/滑模观测器/鲁棒/线性矩阵不等式Key words
nonlinear/actuator loop/sliding mode observer/robust/linear matrix inequality分类
动力与电气工程引用本文复制引用
刘聪,钱坤,丁奇..飞翼飞机非线性电动舵回路鲁棒滑模故障估计观测器设计[J].机械科学与技术,2025,44(10):1820-1827,8.
