PID controller is an extremely important type of controller. In this paper the Differential Evolution technique, is successfully applied in system PID tuning and on–line tuning as a novel technique for optimum adaptive control. The details of applying the proposed method are given and the experiments done show that the proposed strategy is effective and robust.

The conventional PID (proportional-integralderivative) controller is widely applied to industrial automation and process control field because its structure is sample and its robust is well, but it do not work well for nonlinear system, time-delayed linear system and timevarying system. This paper provides a new style of PID controller that is based on artificial neural network and evolutionary...

In this paper, we propose a robust self-tuning PID controller suitable for nonlinear systems. The control system employs a preload relay (P Relay) in series with a PID controller. The P Relay ensures a high gain to yield a robust performance. However, it also incurs a chattering phenomenon. In this paper, instead of viewing the chattering as an undesirable yet inevitable feature, we use it as a...

The main objective of this paper is to design a fractional-order PID speed controller for vector-controlled induction motors, where possible parameter variations and load disturbances are considered. The required parameters of the fractional-order PID controller can be obtained by utilizing the Matlab optimization toolbox, in which phase margin, gain-crossover frequency, high-frequency noise re...

In the process control industry, majority of control loops are based on ProportionalIntegral-Derivative (PID) controllers. The basic structure of the PID controllers makes it easy to regulate the process output. Design methods leading to an optimal and effective operation of the PID controllers are economically vital for process industries. Robust control has been a recent addition to the field...

In the process control industry, majority of control loops are based on ProportionalIntegral-Derivative (PID) controllers. The basic structure of the PID controllers makes it easy to regulate the process output. Design methods leading to an optimal and effective operation of the PID controllers are economically vital for process industries. Robust control has been a recent addition to the field...