Detection of asymmetric control valve stiction from oscillatory data   using an extended Hammerstein system identification method

doi:10.1016/j.jprocont.2013.10.012

CORC > 北京大学 > 工学院

	Detection of asymmetric control valve stiction from oscillatory data using an extended Hammerstein system identification method
	Wang, Jiandong ; Zhang, Qinghua
刊名	journal of process control
	2014
关键词	Control valve stiction Oscillation Hammerstein system identification Cyclo-stationarity PERFORMANCE ASSESSMENT LINEAR-SYSTEMS CONTROL LOOPS BACKLASH DIAGNOSIS NONLINEARITIES HYSTERESIS ALGORITHMS MODELS MAPS
DOI	10.1016/j.jprocont.2013.10.012
英文摘要	The study in this paper is motivated by the detection of control valves with asymmetric stiction resulting in oscillations in feedback control loops. The joint characterization of the control valve and the controlled process is formulated as the identification of a class of extended Hammerstein systems. The input non-linearity is described by a point-slope-based hysteretic model with two possibly asymmetric ascent and descent paths. An iterative identification method is proposed, based on the idea of separating the ascent and descent paths subject to the oscillatory input and output. The structure of the formulated extended Hammerstein system is shown to be identifiable, and the oscillatory signals in feedback control loops are proved to be informative by exploiting the cyclo-stationarity of these oscillatory signals. Numerical, experimental and industrial examples are provided to illustrate the effectiveness of the proposed identification method. (C) 2013 Elsevier Ltd. All rights reserved.; Automation & Control Systems; Engineering, Chemical; SCI(E); EI; 4; ARTICLE; jiandong@pku.edu.cn; qinghua.zhang@inria.fr; 1; 1-12; 24
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/154365]
专题	工学院
推荐引用方式 GB/T 7714	Wang, Jiandong,Zhang, Qinghua. Detection of asymmetric control valve stiction from oscillatory data using an extended Hammerstein system identification method[J]. journal of process control,2014.
APA	Wang, Jiandong,&Zhang, Qinghua.(2014).Detection of asymmetric control valve stiction from oscillatory data using an extended Hammerstein system identification method.journal of process control.
MLA	Wang, Jiandong,et al."Detection of asymmetric control valve stiction from oscillatory data using an extended Hammerstein system identification method".journal of process control (2014).