Study of Active Tolerant Control for Encoder Fault in Lift Stage Machinery Control Systems Based on Signal Reconstruction

	Study of Active Tolerant Control for Encoder Fault in Lift Stage Machinery Control Systems Based on Signal Reconstruction
	Mao, Haijie 1,2; Li, Wei 1,2; Feng, Xiaolin 1,2
	2015
关键词	stage machinery control systems fault diagnosis active fault tolerant control signal reconstruction
页码	4619-4624
英文摘要	For the encoder fault in lift stage machinery control system, an active fault tolerant control method based on signal reconstruction was proposed in the paper. Firstly, multi-scale morphological method was adopted to decompose the encoder fault signals. Considering the DIF filter's capacity of underlining the fault characteristic, it was used as feature extraction for decomposed signals to achieve fault diagnosis of encoder. Secondly, as incremental encoder and absolute encoder were used to measure the speed and position of the lift stage respectively, redundant function was thrilled. So when the fault was diagnosed online, the redundancy mentioned above will he utilized by selecting proper numerical integrator and differentiator to substitute reconstructed signal for fault signal, thus an active fault tolerant strategy was implemented with switch strategy.
会议录	2015 27TH CHINESE CONTROL AND DECISION CONFERENCE (CCDC)
会议录出版者	IEEE
会议录出版地	345 E 47TH ST, NEW YORK, NY 10017 USA
语种	中文
WOS研究方向	Automation & Control Systems ; Engineering
WOS记录号	WOS:000375232905182
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/36542]
专题	电气工程与信息工程学院
通讯作者	Mao, Haijie
作者单位	1.Key Lab Gansu Adv Control Ind Proc, Lanzhou 730050, Gansu, Peoples R China 2.Lanzhou Univ Technol, Coll Elect & Informat Engn, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Mao, Haijie,Li, Wei,Feng, Xiaolin. Study of Active Tolerant Control for Encoder Fault in Lift Stage Machinery Control Systems Based on Signal Reconstruction[C]. 见:.