Salas, A.; Rodriguez, A.; Ding, Steven X.:
Fault Diagnosis of Electrohydraulic Servoactuators – A Benchmark Study
In: 16th Mediterranean Conference on Control and Automation : (25-27 June 2008) - Ajaccio, Frankreich, 2008, pp. 1687 - 1692
2008book article/chapter in collection
TechnologyFaculty of Engineering » Engineering and Information Technology » Automatic Control and Complex Systems
Title:
Fault Diagnosis of Electrohydraulic Servoactuators – A Benchmark Study
Author:
Salas, A.;Rodriguez, A.;Ding, Steven X.UDE
GND
134302427
LSF ID
2347
ORCID
0000-0002-5149-5918ORCID iD
Other
connected with university
DOI
10.1109/MED.2008.4602116
Appears in
16th Mediterranean Conference on Control and Automation : (25-27 June 2008)
Place of publication:
Ajaccio, Frankreich
Year of publication:
2008
in:
pp. 1687 - 1692
ISBN
978-1-4244-2505-1

Abstract:

This paper presents a benchmark study on fault diagnosis of electrohydraulic servoactuators (EHSA). EHSA are considered to be affected by faults and disturbances. The linear mathematical model of the EHSA is given. Two different design methods for fault diagnosis are studied. The first method considers the strategy of parity space design, and observer-based implementation, in which a perfect disturbance decoupling is achieved. The second method considers the linear EHSA model with polytopic uncertainties in order to design a residual signal using fault detection filter (FDF) theory, and to calculate a threshold. Linear matrix inequalities (LMI) are used to obtain the problem solutions