The main objective of Load Frequency Control (LFC) is to regulate the power output of the electric generator within an area in response to changes in system frequency and tie-line loading. Thus the LFC helps in maintaining the scheduled system frequency and tie-line power interchange with the other areas within the prescribed limits. Most LFCs are primarily composed of an integral controller. T...

Submitted: Jul 9, 2013; Accepted: Aug 17, 2013; Published: Oct 3, 2013 Abstract: This paper proposes a new type of PID controller. The desired multi inputmulti -output (MIMO) nonlinear system behavior is described by a set of Takagi-Sugeno (T-S) model. However, due to the complexity of the real processes, obtaining a high quality control with a short settle time, a periodical step response and ...

PID controllers are widely used in industrial plants because the structure of PID controller is very simple and its control principle is very clear [1]. It is practical and very easy to be implemented. Industrial processes are subjected to variation in parameters, which when significant makes the system unstable. So the control engineers are on look for automatic tuning procedures. In this pape...

The dissolved oxygen concentration in the wastewater treatment process (WWTP) must remain a specific range while factory operates. augmented positive identification (PID) controller with nonlinear element (sigmoid function) is proposed to assure stability and reduce uncertainties direct reuse/recycling model. gains (PID sigmoid for uncertain processes are tuned using particle swarm optimization...

In order to improve the control performance of PID controller, a new method based on an improved clone selection algorithm (CSA) and the criteria of monotonic fitness function was introduced. Experimental results on 3 typical control systems (second order control system, high order control system, and second order control system) indicated that the proposed method could obtain optimum PID param...

The proportional-integral-derivative (PID) controller is widely used in various industrial applications such as process control, motor drives, magnetic and optical memory, automotive, flight control instrumentation. PID tuning refers to the generation of parameters ( K p , i d ) obtain optimum fitness value for any system. determination essential system that relies on it function a stable mode....

In this study Proportional-Integral-Derivative (PID) control of brushed DC Motor is analyzed. The parameters the PID controller are tuned with two different approaches, namely Ziegler-Nichols (ZN) and Particle Swarm Optimization (PSO). system tested under sinusoidal disturbance varying frequencies in order to evaluate compare rejection performances. It shown that PSO approach has clearly higher...

This paper introduces a brand-new, inspired optimization algorithm (the chaotic billiards (C-BO) approach) to effectively develop the optimal parameters for fuzzy PID techniques enhance dynamic response of solar–hydrogen drive an induction motor. study compares fuzzy-PID-based C-BO regulators based on particle swarm (PSO) and PI-based PSO provide speed control in solar–hydrogen, induction-motor...

increasing of word demand load caused a new distributed generation (dg) to enter to powersystem. one of the most renewable energy is the photovoltaic system. it is beneficial to use thissystem in both separately as well as connected to power system using power electronics interface.in this paper an optimal pid controller for photovoltaic system systems has been developed. theoptimization techni...