摘要
为了使姿态控制系统在模型不确定以及存在干扰的情况下仍具有较强的鲁棒性,提出了自抗扰姿态控制系统设计方法。首先,建立了一般姿态控制系统的数学模型。其次,设计了自抗扰姿态控制系统模型,通过研究自抗扰姿态控制系统回路频带特性,分析了扩张观测器频带对控制性能的影响,并给出了控制参数的设计原则。最后,对自抗扰姿态控制系统进行数学仿真验证。仿真结果表明:相比于传统的带PI校正的姿态控制系统,自抗扰姿态控制系统能获得更好的控制效果,使系统的跟踪性能,抗干扰能力进一步提升。
In order to make the attitude control systems have strong robustness under uncertain models and disturbance conditions,an active disturbance rejection(ADR)attitude control system is proposed.Firstly,the mathematic model of the attitude control system is established.Then,the ADR attitude control system is put forward.Through the study of the frequency characteristics of the ADR loop,the influence of the frequency of the extended observer(ESO)to the control performance is analyzed,and the design principle of the control parameters is given.Lastly,the ADR scheme is verified by digital simulation.Simulation results show that compared with the traditional attitude controller with PI correction,the ADR attitude control system can achieve better control effect,and improve the tracking performance and anti-disturbance ability.
作者
张文杰
阮聪
夏群利
周建平
Zhang Wenjie;Ruan Cong;Xia Qunli;Zhou Jianping(School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China)
出处
《战术导弹技术》
北大核心
2019年第6期67-73,98,共8页
Tactical Missile Technology
关键词
自抗扰控制
扩张观测器
姿态控制系统
频域分析
战术导弹
active disturbance rejection control
extended observer
attitude control system
frequency domain analysis
tactical missile
