|本期目录/Table of Contents|

[1]孙佃升,章跃进.一种抑制初始微分峰值现象的改进型三阶时变参数扩张状态观测器[J].电机与控制学报,2017,21(09):55-62.[doi:10.15938/j.emc.2017.09.008]
 SUN Dian-sheng,ZHANG Yue-jin.Improved third-order time-varying parameters nonlinear ESO restraining the derivative peaking phenomenon[J].,2017,21(09):55-62.[doi:10.15938/j.emc.2017.09.008]
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一种抑制初始微分峰值现象的改进型三阶时变参数扩张状态观测器(PDF)
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
21
期数:
2017年09
页码:
55-62
栏目:
出版日期:
2017-09-01

文章信息/Info

Title:
Improved third-order time-varying parameters nonlinear ESO restraining the derivative peaking phenomenon
作者:
?孙佃升12 章跃进1
?(1. 上海大学 机电工程与自动化学院,上海 200072;2. 滨州学院 电气工程学院,山东 滨州 256600)
Author(s):
?SUN Dian-sheng 12 ZHANG Yue-jin 1
?(1. School of Mechatronic Engineering and Automation,Shanghai University,Shanghai 200072,China; 2. College of Electrical Engineering,Binzhou University,Binzhou 256600,China)
关键词:
自抗扰控制 扩张状态观测器 观测精确度 微分峰值现象 时变参数 状态估计 不确定系统
Keywords:
active disturbance rejection control extended state observer observation precision derivative peaking phenomenon time-varying parameters state estimation uncertain systems
分类号:
TM 46
DOI:
10.15938/j.emc.2017.09.008
文献标志码:
A
摘要:
传统扩张状态观测器( extended state observer,ESO) 在运行时普遍存在着由于状态变量的初始观测值和实际值的偏差过大带来的初始微分峰值现象。为抑制微分峰值现象,避免系统调节过程中出现振荡,缩短调节时间,提高动态性能,提出了一种改进型三阶时变参数 ESO。首先,给出了改进型三阶时变参数 ESO 的构建方法和稳定性证明。然后,分析了该新型 ESO 在有扰动时的观测误差范围,并与传统 ESO 做了对比。最后,通过仿真表明该三阶改进型时变参数 ESO 能有效抑制微分峰值现象,且比传统的三阶非线性 ESO 具有更快的收敛速度和更高的观测精确度。
Abstract:
?The derivative peaking phenomenon in the traditional extended state observer (ESO) is universal because its deviations of initial estimated values and actual values of state variables are too large. An improved time-varying parameters third-order nonlinear ESO was proposed in order to restrain the derivative peaking phenomenon,avoid the system oscillating,shorten the adjusting time and improve the dynamic performance. Firstly,the construction method of the improved ESO and the mathematical proof of the stability of its observation error system were given. Then observation error range of the improved ESO was analyzed and compared with the traditional ESO. Finally,effectiveness of the improved ESO was verified by computer simulation. The simulation results show that the improved third-order time-varying parameters nonlinear ESO can effectively restrain the derivative peaking phenomenon,and it has faster convergence speed and higher observation accuracy than the traditional three order nonlinear ESO.

参考文献/References:

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备注/Memo

备注/Memo:
?收稿日期: 2016 - 08 - 18
?基金项目: 山东省自然科学基金( ZR2016FQ16、2014ZRB019X3)
作者简介: 孙佃升( 1980—) ,男,博士,研究方向为先进控制理论在电机控制上的应用; 章跃进( 1956—) ,男,博士,教授,博士生导师,研究方向为电机理论、电机电磁场和电机动态仿真。
更新日期/Last Update: 2018-02-06