国防科技大学学报2017，Vol.39Issue(6)：111-117,7.DOI:10.11887/j.cn.201706017
线性扩张状态观测器的改进及观测精度分析
Improvement and observation accuracy analysis of linear extended state observer
摘要
Abstract
In order to accelerate convergence rate and promote observation precision of linear ESO ( extended state observer ),an improved linear ESO used in active disturbance rejection control system was proposed.The improved linear ESO followed error controlling principle and used the errors between the state variables and their observed values as the regulation basis.It is proved that the observation error of this improved second-order and third-order linear ESO is stable,and its steady state error is greatly reduced when compared with the traditional linear ESO.Simulation results show that the second-order and third-order improved linear ESO is faster and more accurate than the traditional same order linear and nonlinear ESO.关键词
扩张状态观测器/Lyapnov函数/观测精度/自抗扰控制Key words
extended state observer/Lyapunov function/observation precision/active disturbance rejection control分类
信息技术与安全科学引用本文复制引用
孙佃升,章跃进..线性扩张状态观测器的改进及观测精度分析[J].国防科技大学学报,2017,39(6):111-117,7.基金项目
国家自然科学基金资助项目(5117097) （5117097）
山东省自然科学基金资助项目(ZR2014EL021) （ZR2014EL021）
