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...

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...

This paper presents a new robust decentralized controller based on mixed H2/H∞ control technique for the solution of Load Frequency Control (LFC) in a deregulated electricity environment. To achieve decentralization in each control area, the connections between this area and the rest of the system and the effects of possible contracts are treated as a set of new disturbance signals. It is shown...

The introduction of electrolytic aluminum load in a large-scale power system with complex station structure is essential for frequency control (LFC). In this paper, we propose strategy to participate the modulation grid based on IEEE standard two-region LFC model. Besides, fractional-order PID (FOPID) controller designed and compared traditional PID, parameters FOPID are optimized by PSO algori...

 This paper presents an optimal design of Variable Structure Load Frequency Controller using Particle Swarm Optimization Algorithm. The optimal design provides a simple systematic way for obtaining optimum feedback gains and switching vector for VSC. It also includes a new method to reduce the chattering associated with the Variable Structure Controllers (VSC). The proposed method has been app...