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Stability and Time Delay Tolerance Analysis Approach for Networked Control Systems

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  • Ashraf F. Khalil
  • Jihong Wang

Abstract

Networked control system is a research area where the theory is behind practice. Closing the feedback loop through shared network induces time delay and some of the data could be lost. So the network induced time delay and data loss are inevitable in networked control Systems. The time delay may degrade the performance of control systems or even worse lead to system instability. Once the structure of a networked control system is confirmed, it is essential to identify the maximum time delay allowed for maintaining the system stability which, in turn, is also associated with the process of controller design. Some studies reported methods for estimating the maximum time delay allowed for maintaining system stability; however, most of the reported methods are normally overcomplicated for practical applications. A method based on the finite difference approximation is proposed in this paper for estimating the maximum time delay tolerance, which has a simple structure and is easy to apply.

Suggested Citation

  • Ashraf F. Khalil & Jihong Wang, 2015. "Stability and Time Delay Tolerance Analysis Approach for Networked Control Systems," Mathematical Problems in Engineering, Hindawi, vol. 2015, pages 1-9, June.
    • Handle: RePEc:hin:jnlmpe:812070
    DOI: 10.1155/2015/812070
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    Cited by:

    1. Richa Sharma & Purushottam Sharma & Anshuman Singh & Veer Srivastava, 2023. "An approach to optimize performance of controller in networked control system," International Journal of System Assurance Engineering and Management, Springer;The Society for Reliability, Engineering Quality and Operations Management (SREQOM),India, and Division of Operation and Maintenance, Lulea University of Technology, Sweden, vol. 14(5), pages 1639-1646, October.

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