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The article presents the design and implementation of a multi-loop FID controller for a pilot plant distillation column, based on the Multi-Scale Control (MSC) technique. Designing an effective multi-loop PID controller is challenging because of the interactions and dead time. The main feature of this multi-scale control scheme is its communicative structure, which enables communication among all...
An attempt has been made to design a decoupling controller for system with more inputs and more outputs with dead time in it. The process of distillation column is explained briefly. The decoupler is designed for the 3×3 distillation column. It is shown that smith predictor incorporation in the decoupling structure to implement the method of absolute decoupling for distillation processes. The developed...
System Identification has been widely used in obtaining the mathematical model of nonlinear systems. Nonlinear system identification is challenging because of its complexity and unpredictability. The nonlinear system considered in this paper is Rotary Double Inverted Pendulum which is unstable and non-minimum phase system. Inverted pendulum is a well-known benchmark system in control system laboratories...
System Identification has been widely used in obtaining the mathematical model of nonlinear systems. Nonlinear system identification is challenging because of its complexity and unpredictability. The nonlinear system considered in this paper is Rotary Inverted Pendulum which is unstable and non-minimum phase system. Inverted pendulum is a well-known benchmark system in control system laboratories...
A Simulink model for an aircraft landing system using Lyapunov function is discussed. This paper also illustrates the concepts of the Nonlinear Energy Based Control Method (NEM) and modifying the aircraft energy to automatically land an aircraft. The aircraft dynamics are expressed in the form of the Euler- Lagrange (EL) equations of motion, which are derived from the energy functions. The structure...
A modification of Smith predictor for controlling the higher order processes with integral action & long dead-time is proposed in this paper. The controller used in this Smith predictor is an Integral-Proportional Derivative controller, where the Integrator is in the forward path & the Proportional and Derivative control are in the feedback, acting on the feedback signal. The main objective...
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