What is it about?
Second-order unstable processes are frequently encountered in process industries. The higher-order process dynamics are approximated to second-order processes in order to design a controller. In industrial processes, Proportional Integral Derivative(PID) controllers are still widely used. PID, cascaded with filters, provides satisfactory closed-loop performance for unstable processes.
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Why is it important?
The present study’s main aim is to develop control schemes for a class of unstable second-order processes. The methodology of the proposed control scheme is based on the Polynomial approach. For the time delay approximation, a higher-order Laguerre shift is utilized. The choice of the tuning parameter (λ) is analytically carried out using MS criteria.
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This page is a summary of: A novel PID control scheme with higher-order filter for unstable second order process with time delay, January 2024, American Institute of Physics,
DOI: 10.1063/5.0189785.
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