A simple method for fault detection of industrial digitial positioners

Author

Huang, Xiaobin ; Yu, Feng

Author_Institution

Dept. of Autom., North China Electr. Power Univ., Beijing

fYear

2008

fDate

25-27 June 2008

Firstpage

6863

Lastpage

6866

Abstract

A simple method for detecting stick-slip fault of industrial digital positioners (control valves) in control systems is presented. Only the valve travel setting signal and the actual valve travel signal are required. These two signals are available in most industrial processes, such as DCS. Therefore, the proposed method can be applicable to a large number of digital positioners with digital positioner. Meanwhile, the knowledge of the plant and the digital positioners are not necessary. Real world data sets sampled from a power plant were used to test its efficiency.

Keywords

digital control; distributed control; fault diagnosis; position control; process control; valves; distributed control system; industrial digitial positioners; industrial processes; stick-slip fault detection; valve control; valve travel setting signal; Control systems; Digital control; Distributed control; Electrical equipment industry; Fault detection; Industrial control; Power generation; Signal processing; Testing; Valves; Control Systems; Digital Positioners; Fault Detection; Stick-Slip Fault;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Control and Automation, 2008. WCICA 2008. 7th World Congress on

Conference_Location

Chongqing

Print_ISBN

978-1-4244-2113-8

Electronic_ISBN

978-1-4244-2114-5

Type

conf

DOI

10.1109/WCICA.2008.4593976

Filename

4593976