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Internal model control for industrial wireless plant using WirelessHART hardware-in-the-loop simulator.

Chung Duc Tran1, Rosdiazli Ibrahim1, Vijanth Sagayan Asirvadam2

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Internal Model Control (IMC) offers improved wireless process control over traditional PID. This method demonstrates greater robustness to network delays in WirelessHART systems, enhancing reliability for industrial applications.

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Area of Science:

  • Industrial Automation
  • Wireless Sensor Networks
  • Control Systems Engineering

Background:

  • WirelessHART and ISA100 Wireless are emerging for industrial process plants.
  • Current wireless control applications are limited to monitoring due to confidence issues.
  • Traditional PID control is inadequate for wireless environments.

Purpose of the Study:

  • Investigate Internal Model Control (IMC) for WirelessHART systems.
  • Address limitations of PID control in wireless process environments.
  • Enhance robustness and performance of wireless control.

Main Methods:

  • Control design using the Internal Model Control (IMC) approach.
  • Focus on wireless process applications.
  • Utilized real-time WirelessHART hardware-in-the-loop simulator (WH-HILS) for testing.

Main Results:

  • IMC approach shows improved robustness to network delay variations.
  • Outperforms traditional PID control in wireless environments.
  • Validated through simulation and experimental results.

Conclusions:

  • IMC is a viable and robust control strategy for WirelessHART.
  • The proposed IMC method enhances reliability in dynamic wireless networks.
  • Further research into IMC for wireless control is warranted.