摘要
针对现有自抗扰控制器使用的扩张状态观测器抑制谐波扰动能力差的缺点,提出一种基于无差扰动跟踪观测器的改进型自抗扰控制方法,该方法消除了传统扩张状态观测器的状态跟踪误差对系统的影响,显著地抑制谐波扰动引起的系统振动,提高了系统控制精度,并证明了提出的方法对系统参数和自抗扰控制参数在大范围内变化保持控制的稳定性。仿真实验表明,提出的观测器具有跟踪精度高、抗扰能力强、频率稳定性好等优点,具有良好的控制性能。
As it is weak for the existing extended state observer used in active disturbance rejection controller to suppress the harmonic disturbance,an improved Active Disturbance Rejection Control method based on the indifference tracking observer is proposed.This method eliminates the influence of state tracking errors of the traditional extended state observer on the systems and significantly suppresses the system vibration caused by harmonic disturbance,and improves the control accuracy of the systems.It is proved that the proposed method can maintain the stability of the system when the system parameters and active disturbance rejection control parameters vary in wide range.The simulation results show that the proposed observer has such advantages as high tracking accuracy,strong disturbance rejection ability,good frequency stability and excellent control performance.
作者
石上瑶
刘家豪
石萱
陈鹏云
SHI Shangyao;LIU Jiahao;SHI Xuan;CHEN Pengyun(School of Sofiware,North University of China,Taiyuan 030051,China;School of Mechanical Engineering,North University of China,Taiyuan 030051,China;School of Accounting,Zhejiang University of Finance and Economics Dongfang College,Jiaxing 314408,China)
出处
《火力与指挥控制》
CSCD
北大核心
2023年第7期7-12,22,共7页
Fire Control & Command Control
基金
国家自然科学基金(51909245,62003314)
山西省重点研发计划(202202020101001)
山西省基础研究计划(202103021224187)
中北大学研究生科技立项基金资助项目(20221876)。
关键词
自抗扰控制
误差扰动跟踪
扩张状态观测器
频率稳定性分析
active disturbance rejection controllers
indifference disturbance tracking
extended state observer
frequency stability analysis
