Due to rapidly growing amount of wind turbines and new types of power generation and demand technologies, The infrastructure Load Frequency Control (LFC) in power system should improve. Maintenance of frequency of power system is done by Automatic Load Frequency Control (AGC).Since the complexity of power systems are increasing, now days LFC systems must be able to handle multi-objective regula...

Continuity of the power quality is important in modern day grid structure and smart future. Incorporating renewable energy sources to present system increase usage technology devices will cause decrease. Power harmonics can be characterized as one factors that causes a decrease quality. The effects this factor, if not prevented, lead performance reliability systems which economic losses. In stu...

In an interconnected power system, as a power load demand varies randomly both area frequency and tie-line power interchange also vary. The objectives of load frequency control (LFC) are to minimize the deviations in these variables (area frequency and tie-line power interchange) and to ensure their steady state errors to be zero. In this area of energy crisis, renewable energy is the most prom...

With high wind power penetration, imbalance between generation and consumption is increased, and as a consequence the frequency deviation from the nominal value will be magnified. For frequency control purpose in conventional power systems, the synchronous generators are only responsible. However, it is expected that the renewable energy sources (RESs) are also needed to contribute in frequency...

Prior to the 1965 blackout in the Northeastern US the electric utility companies operated their systems with two separate real time systems. The first, which I will call the load control system, consisted of analog computers connected to measurement transducers at major tie line connections to neighboring systems as well as to generating plants and was used to control the frequency and net inte...

In this paper, Load Frequency Control (LFC) of isolated single area and two-area re-heat inter-connected thermal power system has been carried out by the classical controllers i.e. I, PI and PID; and implemented on the system at 1% step load perturbation under nominal loading conditions. The system responses have been simulated in MATLAB R2010a. Responses of deviation in frequencies, deviation ...

ABSTRACT: Decentralized load frequency controller (LFC) for multiarea power system using the state feedback controller based on Imperialist Competitive Algorithm (ICA) is developed and studied in this paper.In this method, an objective cost function is used to design the gains of the state feedback matrix. The proposed cost function decrease the frequency deviation and power flow variations bet...

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 ...