This paper presents a design and evaluation of fractional-order self optimizing control (FOSOC) architecture for process control. It is based on real-time derivative-free optimization layer that adjusts the parameters discrete-time proportional integral (FOPI) controller according to an economic cost function. A simulation benchmark designed assess performance FOSOC first order plus dead time s...

This paper describes a novel method for the online identification of an analog second-order plus dead time (SOPDT) model. It requires measurement four physical quantities, which relay is used. Based on these measurements, parameters model or regulator settings can be directly determined and used to autotune PI/PID controllers. The steps required take necessary measurements computational algorit...

In the present paper, controller design is performed using lambda tuning method and controller performance is compared for various values of desired closed loop time constant. A blending system, which can be represented as a first order plus dead time model, is selected from literature survey for this analysis. The performance is calculated in terms of rise time, settling time, over shoot (%), ...