Internal Leakage Fault Detection and Tolerant Control of Single-Rod Hydraulic Actuators
Joint Authors
Yang, Guichao
Yao, Jianyong
Ma, Dawei
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-13
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
The integration of internal leakage fault detection and tolerant control for single-rod hydraulic actuators is present in this paper.
Fault detection is a potential technique to provide efficient condition monitoring and/or preventive maintenance, and fault tolerant control is a critical method to improve the safety and reliability of hydraulic servo systems.
Based on quadratic Lyapunov functions, a performance-oriented fault detection method is proposed, which has a simple structure and is prone to implement in practice.
The main feature is that, when a prescribed performance index is satisfied (even a slight fault has occurred), there is no fault alarmed; otherwise (i.e., a severe fault has occurred), the fault is detected and then a fault tolerant controller is activated.
The proposed tolerant controller, which is based on the parameter adaptive methodology, is also prone to realize, and the learning mechanism is simple since only the internal leakage is considered in parameter adaptation and thus the persistent exciting (PE) condition is easily satisfied.
After the activation of the fault tolerant controller, the control performance is gradually recovered.
Simulation results on a hydraulic servo system with both abrupt and incipient internal leakage fault demonstrate the effectiveness of the proposed fault detection and tolerant control method.
American Psychological Association (APA)
Yao, Jianyong& Yang, Guichao& Ma, Dawei. 2014. Internal Leakage Fault Detection and Tolerant Control of Single-Rod Hydraulic Actuators. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-14.
https://search.emarefa.net/detail/BIM-464475
Modern Language Association (MLA)
Yao, Jianyong…[et al.]. Internal Leakage Fault Detection and Tolerant Control of Single-Rod Hydraulic Actuators. Mathematical Problems in Engineering No. 2014 (2014), pp.1-14.
https://search.emarefa.net/detail/BIM-464475
American Medical Association (AMA)
Yao, Jianyong& Yang, Guichao& Ma, Dawei. Internal Leakage Fault Detection and Tolerant Control of Single-Rod Hydraulic Actuators. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-14.
https://search.emarefa.net/detail/BIM-464475
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-464475