A Modified Disturbance Observer Structure Based on Acceleration Measurement for Disturbance Suppression in Tracking Control System

doi:10.3390/app8091571

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	A Modified Disturbance Observer Structure Based on Acceleration Measurement for Disturbance Suppression in Tracking Control System
	Jiuqiang Deng 1,2,3; Wei Ren 1,2,3; Hanwen Zhang 1,2,3; Yong Luo 1,2,3; Xi Zhou 1,2; Yao Mao 1,2
刊名	APPLIED SCIENCES-BASEL
	2018-09-01
卷号	8 期号:9 页码:1571
关键词	MEMS accelerometer integral saturation modified disturbance observer disturbance suppression drift rejection
ISSN号	2076-3417
DOI	10.3390/app8091571
文献子类	J
英文摘要	The micro-electro-mechanical system (MEMS) accelerometer is widely adopted in many engineering control systems due to its extraordinary performance with high bandwidth, small size and low weight. However, massive drift caused by its insensitively at low frequency is the main factor which limits its performance. It leads to integral saturation when the feedforward method is used and hinders the improvement of disturbance suppression ability at low frequency, which is a significant factor for evaluating the closed-loop performance of a high-precision tracking system. To solve this problem, a modified disturbance observer structure and its corresponding new controller, which can improve disturbance suppression performance at low frequency by effectively rejecting more drift and weakening the occurrence possibility of integral saturation when drift exists, are proposed. Detailed analyses and a series of comparative experimental results verify that the proposed method can effectively enhance disturbance suppression performance at low frequency.
WOS关键词	SPACE OPTICAL COMMUNICATIONS ; ACCELEROMETER ; DESIGN ; MIRROR ; SENSOR
语种	英语
WOS记录号	WOS:000445760200160
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/9264]
专题	光电技术研究所_光电工程总体研究室（一室）
作者单位	1.Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu 610209, China; 2.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China; 3.Yanqihu Campus, University of Chinese Academy of Sciences, Beijing 100049, China
推荐引用方式 GB/T 7714	Jiuqiang Deng,Wei Ren,Hanwen Zhang,et al. A Modified Disturbance Observer Structure Based on Acceleration Measurement for Disturbance Suppression in Tracking Control System[J]. APPLIED SCIENCES-BASEL,2018,8(9):1571.
APA	Jiuqiang Deng,Wei Ren,Hanwen Zhang,Yong Luo,Xi Zhou,&Yao Mao.(2018).A Modified Disturbance Observer Structure Based on Acceleration Measurement for Disturbance Suppression in Tracking Control System.APPLIED SCIENCES-BASEL,8(9),1571.
MLA	Jiuqiang Deng,et al."A Modified Disturbance Observer Structure Based on Acceleration Measurement for Disturbance Suppression in Tracking Control System".APPLIED SCIENCES-BASEL 8.9(2018):1571.