Research on remaining useful life prediction and life extension of control system with implicit degradation of actuators

doi:10.13245/j.hust.201204

CORC > 兰州理工大学 > 兰州理工大学

	Research on remaining useful life prediction and life extension of control system with implicit degradation of actuators
	Li, Wei 1,2,3; Wang, Chengwen 1,2,3
刊名	Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition)
	2020-12-23
卷号	48 期号:12 页码:20-26
关键词	Actuators Adaptive control systems Degradation Digital storage Economic and social effects Forecasting Life cycle Measurement errors Real time systems Water tanks Control system performance Degradation failure Life extension control Linear quadratic regulator controllers Remaining useful life predictions Residual life prediction Steady state performance Uncertain measurements
ISSN号	16714512
DOI	10.13245/j.hust.201204
英文摘要	Aimed at the problems of life prediction and extended life control of closed-loop control systems with measurement errors in actuator degradation monitoring data, firstly, the relationship between the uncertain measurement data and the implied degradation state of the actuator was described by the nonlinear Wiener model with measurement error, and the actual degradation state was estimated by Kalman filtering technique.Secondly, combined the dynamic and steady-state performance constraint sets, the systems degradation failure threshold was determined by the three degradation stages that drive the control system to be degraded due to the actuator's implicit degradation.Through the estimation of system degradation threshold and actuator degradation state, the analytical solution of residual life prediction distribution of control system was obtained.Then, the actuator degradation state was incorporated into the design of the linear quadratic regulator (LQR) controller, and an adaptive life extension control strategy based on the real-time degradation state of the actuator was proposed.By the trade-offs between control system performance and control action to slow degradation the actuator, thus the purpose of extending the life cycle of the control system was achieved.Finally, the validity of the method in the paper was verified by the double-tank water tank level system. © 2020, Editorial Board of Journal of Huazhong University of Science and Technology. All right reserved.
语种	中文
出版者	Huazhong University of Science and Technology
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150847]
专题	兰州理工大学
作者单位	1.Key Laboratory of Gansu Advanced Control for Industrial Processes, Lanzhou University of Technology, Lanzhou; 730050, China; 2.College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 3.National Demonstration Center for Experimental Electrical and Control Engineering Education, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Li, Wei,Wang, Chengwen. Research on remaining useful life prediction and life extension of control system with implicit degradation of actuators[J]. Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition),2020,48(12):20-26.
APA	Li, Wei,&Wang, Chengwen.(2020).Research on remaining useful life prediction and life extension of control system with implicit degradation of actuators.Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition),48(12),20-26.
MLA	Li, Wei,et al."Research on remaining useful life prediction and life extension of control system with implicit degradation of actuators".Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition) 48.12(2020):20-26.