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Multirate Output Feedback-Based Discrete-Time Sliding Mode Controller for NCS Having Deterministic Fractional Delay

  • Dipesh H. ShahEmail author
  • Axaykumar Mehta
Chapter
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Part of the Studies in Systems, Decision and Control book series (SSDC, volume 132)

Abstract

In Networked Control System, the state feedback SMC is the simplest way for designing controller provided all state information is available. However, in many practical situations in network-based control system most of the states are observable but they are immeasurable. So it is essential to design the SMC controller using output information which is always available. This chapter presents the design of multirate output feedback-based discrete-time sliding mode controller in which the control input is computed using the system outputs and past control signals by taking full advantage of network transmission. A Thiran approximation technique is used to compensate the networked-induced delays for designing sliding mode controller (SMC). The stability of the closed-loop NCSs is derived using Lyapunov approach. Simulations results are presented to demonstrate the effectiveness of the proposed approach.

Keywords

Multirate output feedback Deterministic network delay Thiran’s approximation Discrete-time sliding mode control Stability 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Department of Instrumentation and ControlSardar Vallabhbhai Patel Institute of TechnologyAnandIndia
  2. 2.Department of Electrical EngineeringInstitute of Infrastructure Technology Research and ManagementAhmedabadIndia

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