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Proceedings Paper

Design and implementation of a smart electro-hydraulic converter
Author(s): Wei-Bo Lee; Jun Ye; Wen-Kui Wang; Jian-Guo Lou
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Paper Abstract

The development of a fieldbus based electro-hydraulic converter with functions of non-sensor fault self-diagnostic, fault prediction, fault-tolerant and fault self-removing is described. Non-sensor fault self-diagnostic and fault prediction were implemented through the detection of an oscillation current. The current was selected as the criterion of jam fault. Redundancy construction was adopted to realize the fault-tolerant function. Also, the switching principle of the redundancy construction was discussed. A concept of "electrical hammer" was presented to resolve the jam fault on-line automatically. A CEBus based powerline communication network was developed to fulfill the communication demands of field devices which are normally interconnected by "low voltage" wiring. The effectiveness of the proposed converter was demonstrated through simulations and experiments. It was concluded that the converter has a promising future in engineering applications, especially in turbine governing systems that suffer from jam fault.

Paper Details

Date Published: 2 May 2006
PDF: 7 pages
Proc. SPIE 6042, ICMIT 2005: Control Systems and Robotics, 60423Z (2 May 2006); doi: 10.1117/12.664789
Show Author Affiliations
Wei-Bo Lee, Shaoxing College of Arts and Science (China)
Jun Ye, Shaoxing College of Arts and Science (China)
Wen-Kui Wang, Shaoxing College of Arts and Science (China)
Jian-Guo Lou, Shaoxing College of Arts and Science (China)

Published in SPIE Proceedings Vol. 6042:
ICMIT 2005: Control Systems and Robotics
Yunlong Wei; Kil To Chong; Takayuki Takahashi; Shengping Liu; Zushu Li; Zhongwei Jiang; Jin Young Choi, Editor(s)

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