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Double integral sliding mode control based on ESO for stabilized platform of seeker
Zhang, Mingyue; Liu, Hui; Chu, Hairong; Zhang, Yulian; Sun, Tingting; Miao, Xikui
2018
发表期刊Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
ISSN10072276
卷号47期号:8
摘要In order to reduce the influence of disturbances on the stabilized platform of seeker, an improved double integral sliding mode controller (DISMC) based on extended state observer (ESO) was proposed in this paper. Firstly, the second order extended state observer was used to estimate the unknown disturbances of the system. Secondly, a double integral sliding mode controller was adopted to achieve low steady-state error tracking; meanwhile, the improved power reaching law was adopted to reduce the chatting magnitude. Finally, the performances of tracking and disturbance rejection rate were carried out on the stabilized platform of seeker. The results showed that compared with the traditional PI controller based on disturbance observer(PI-DOB), when the system tracked the trapezoidal wave at 3()/s, response time of LOS rate was reduced by 48 ms, and the standard deviation of tracking error was reduced by 0.013 1()/s with the proposed controller. Meanwhile, the turntable generated a periodic motion with sin(t), 3sin(5t) and 7sin(2t) respectively to simulate the motion of the carrier, the disturbance rejection rates were increased by 2.91%, 0.45%, 0.7% respectively. In conclusion, the DISMC-ESO has better performance in dynamic response and disturbance rejecting for stabilized platform of seeker. 2018, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
关键词Sliding mode control Controllers Disturbance rejection State estimation
DOI10.3788/IRLA201847.0817009
收录类别EI
引用统计
文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/60639
专题中国科学院长春光学精密机械与物理研究所
推荐引用方式
GB/T 7714
Zhang, Mingyue,Liu, Hui,Chu, Hairong,et al. Double integral sliding mode control based on ESO for stabilized platform of seeker[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2018,47(8).
APA Zhang, Mingyue,Liu, Hui,Chu, Hairong,Zhang, Yulian,Sun, Tingting,&Miao, Xikui.(2018).Double integral sliding mode control based on ESO for stabilized platform of seeker.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,47(8).
MLA Zhang, Mingyue,et al."Double integral sliding mode control based on ESO for stabilized platform of seeker".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 47.8(2018).
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