Title :
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
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;
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
DOI :
10.1109/WCICA.2008.4593976
