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A Fast Particle Swarm Optimization (PSO) Method for Detecting Control Valve Stiction

[+] Author Affiliations
Dongming Zhang, Guangxin Zhang, Xu Wang

Shanghai Nuclear Engineering Research and Design Institute, Shanghai, China

Paper No. ICONE25-66608, pp. V001T01A017; 6 pages
  • 2017 25th International Conference on Nuclear Engineering
  • Volume 1: Operations and Maintenance, Engineering, Modifications, Life Extension, Life Cycle and Balance of Plant; I&C, Digital Controls, and Influence of Human Factors
  • Shanghai, China, July 2–6, 2017
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-5779-3
  • Copyright © 2017 by ASME


The control valve is one of the key fluid control components in a nuclear power plant, such as a Main Feedwater Control Valve, Pressurizer Spray Valve, etc. Stiction is one of the most common problems for control valves due to breakout static friction. Control valve stiction may lead to a poor performance, or even oscillations in the control loop. This paper presents a method based on parameters identification of detecting control valve stiction. It can detect the control valve stiction parameters quickly and quantitatively so that provides support for online detection or prospective maintenance of control valves.

Copyright © 2017 by ASME



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