Diagnosis of sensor faults in active magnetic bearing system equipped with built-in force transducers

Seung Jong Kim; Chong Won Lee

doi:10.1109/3516.769544

Diagnosis of sensor faults in active magnetic bearing system equipped with built-in force transducers

Seung Jong Kim, Chong Won Lee

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

In this paper, an on-line diagnosis scheme for sensor faults in an active magnetic bearing system equipped with built-in force transducers is proposed. The scheme, utilizing redundant signals, i.e., displacement, current, and force, is based on the causality between faults and symptoms. The main advantage of the scheme is that it is simple and efficient, because monitoring the symptom only is enough to diagnose a sensor fault with no elaborate signal processing. Experiments were also performed to demonstrate the effectiveness of the proposed method in the detection and diagnosis of sensor faults.

Original language	English
Pages (from-to)	180-186
Number of pages	7
Journal	IEEE/ASME Transactions on Mechatronics
Volume	4
Issue number	2
DOIs	https://doi.org/10.1109/3516.769544
Publication status	Published - 1999

Bibliographical note

Funding Information:
Manuscript received April 30, 1998; revised November 4, 1998. Recommended by Technical Editor R. Isermann. This work was supported in part by the Korea Science and Engineering Foundation under Grant KOSEF 941-1000-013-2 and in part by the Critical Technology 21 Project of the Ministry of Science and Technology, Korea.

ASJC Scopus subject areas

Control and Systems Engineering
Computer Science Applications
Electrical and Electronic Engineering

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AB - In this paper, an on-line diagnosis scheme for sensor faults in an active magnetic bearing system equipped with built-in force transducers is proposed. The scheme, utilizing redundant signals, i.e., displacement, current, and force, is based on the causality between faults and symptoms. The main advantage of the scheme is that it is simple and efficient, because monitoring the symptom only is enough to diagnose a sensor fault with no elaborate signal processing. Experiments were also performed to demonstrate the effectiveness of the proposed method in the detection and diagnosis of sensor faults.

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Diagnosis of sensor faults in active magnetic bearing system equipped with built-in force transducers

Abstract

Bibliographical note

ASJC Scopus subject areas

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