In this paper an optimal load-frequency controller for a nonlinear power system is proposed. The mathematical model of the power system consists of one area with several power plants, a few concentrated loads and a transmission network, along with simplified models of the neighbouring areas. Firstly, a substitute linear model is derived, with its parameters being identified from the responses o...

In this paper, linear active disturbance rejection control (LADRC) is employed to deal with the load frequency control (LFC) problem in power systems with a single generator supplying power to a single service area. First, the general (n+1)th order LADRC is given, and then the parameter tuning procedures are presented. It is followed by the description of an LFC problem, in which the case of a ...

A new decentralized robust controller for Load Frequency Control (LFC) in a deregulated electricity environment is presented in this paper. It is shown that subject to a condition based on the H∞ norm and structured singular values (μ ), each local area controller can be designed independently such that stability of the overall closed loop system is guaranteed. A generalized model for LFC schem...

Literature survey shows that generally studies are made assuming the fact that there is no interaction between LFC and AVR loops. But the Automatic Voltage Regulation (AVR) and Load Frequency Control (LFC) loops are not in truest sense non-interacting. Practically, during dynamic perturbations some interactions between these two control loops exist. Interaction exists in opposite direction of t...

The objectives of load frequency control (LFC) are to minimize the transient deviations in these variables (area frequency and tie-line power interchange) and to ensure their steady state errors to be zeros. Since the tieline interfaces give rise to weakly coupled terms between areas, the large-scale power system can be decentralized into small subsystems through treating tie-line signals as di...

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...

This project presents decentralized control scheme for Load-Frequency Control in Multi-area power System. In this era renewable energy is most promising solution to man’s ever increasing energy needs. But the power production by these resources cannot be controlled unlike in thermal plants. A number of optimal control techniques are adopted to implement a reliable stabilising controller. It is ...

Original scientific paper This paper presents new approach to the optimal distribution of the regulating reserve (RR) in a set of available regulating generation units. It is developed using evolutionary computation for the transmission-loss minimization and power-flow computation by applying the iterative method with a reactive power correction for voltage control. The approach involves the us...

A new Model Predictive Control (MPC) algorithm is proposed which is based on Particle Swarm Optimization (PSO). The proposed method formulates the MPC as an optimization problem and PSO is used to find the solution to that optimization problem. The method is applied to the Load Frequency Control (LFC) of a single area power system to illustrate the performance of the proposed algorithm in the p...

Automatic generation control (AGC) or called load frequency control (LFC) has gained a lot of interests in the past 30 decade (Benjamin &. Chan, 1982; Pan & Liaw, 1989; Kothari et al., 1989; Y. Wang et al., 1994; Indulkar & Raj, 1995; Karnavas & Papadopoulos, 2002; Moon et al., 2002; Sherbiny et al., 2003). LFC insures a sufficient and reliable supply of power with good quality. To ensure the q...