The control of processes with time delays is crucial in process industries such as petrochemical, hydraulic, and manufacturing. It a challenging task for automation engineers, it may affect both phase gain margins. In this case, robust system preferred. This article presents novel controller structure combining computational intelligence (CI) fractional-order control. A PID (FOPID) based on bio...

In recent decades, various types of control techniques have been proposed for use in power systems. Among them, the a proportional–integral–derivative (PID) controller is widely recognized as an effective technique. The generalized type this fractional-order PID (FOPID) controller. This provides wider range stability area due to fractional orders integrals and derivatives. These controllers sig...

In this paper, a comparative study is done on the time and frequency domain tuning strategies for fractional order (FO) PID controllers to handle higher order processes. A new fractional order template for reduced parameter modelling of stable minimum/non-minimum phase higher order processes is introduced and its advantage in frequency domain tuning of FOPID controllers is also presented. The t...

This paper compares the frequency domain performance criterion (Jv) of PI, fractional PI, and PID controllers when a step load disturbance is applied at the plant input. Process information is available in form of first-order plus dead-time (FOPDT) model. In addition, the controllers were compared using the H∞–norm of the sensitivity function as a measure of robustness, and some comments on ind...

Kesir dereceli PID kontrolör çoğu kontrol sisteminde geleneksel kontrolöre göre daha başarılı bir performansı sunar. Bu çalışmada, DC motorun hız kontrolü için kesir kontrolörün kullanıldığı optimizasyon-tabanlı metot önerilmiştir. Önerilen yöntem, optimal parametrelerini belirlemek amacıyla yusufçuk algoritması ve çok-ölçütlü amaç fonksiyonu kullanır. Kontrol sistemlerinde oluşturulurken hatay...