# Two-area load frequency control by matlab tutorial pdf

Keywords pid controller, fuzzy logic controller, two area power system, load frequency control, matlab simulink. The performance of the controller like pi and fuzzy logic are proposed and compared on two areas of the power system. The same neural network technique is then extended to control a twoarea system i. The performance of the controller like pi and fuzzy logic are proposed and compared on.

Its essential advantages over a previous approach are the following. One of the objectives of agc is to maintain the system frequency at nominal value 50 hz. Load frequency control file exchange matlab central. I declare this report entitled load frequency control for a two area power system is my own. Jan 27, 2008 lecture series on power system generation, transmission and distribution by prof. Load frequency control of multiarea power systems using.

Load frequency control is the basis of many advanced concepts of the large scale control of the power system. The power flow between the different tie lines are scheduled for example, area i. Schematic and block diagram of alternator voltage regulator scheme. Basically, single area power system consists of a governor, a turbine and a generator with feedback of regulation constant. The state space modeling of single, two and three alfc of. Two area load frequency control using pi cintroller. The frequency response can be found experimentally or from a transfer function model.

Doubleclick the function block, and enter the expression for torque as a function of speed. If its not required to maintain the frequency constant in a system then the operator is not required to. The frequency response is an important tool for analysis and design of signal filters and for analysis and design of control systems. At first uncontrolled system is studied and then improvement of its response is learnt on the application of integral controller. Here, the tieline power deviations can be assumed as an additional power disturbance to any area k 12. Use of the genetic algorithmbased fuzzy logic controller for load frequency control in a two area interconnected power system the use of renewable energy resources has created some problems for power systems. In this project, simulink model of two area load frequency control will be developed by using matlabsimulink software.

Using variable values for the proportional and integral gains in the controller unit, the dynamic performance of the system is improved. It can be run both under interactive sessions and as a batch job. This paper presents a fuzzy application to the area of load frequency control lfc using fuzzy gain scheduling of pi controllers. The parameters, and characterize the behavior of a canonical secondorder system.

The studies on two area interconnected power system networks were presented based on. The trend of frequency measured in each control area is an indicator of the trend of mismatch power in the interconnection and not in the control area alone. Introduction load frequency control is a control mechanism which minimizes frequency deviation and tie line power deviation to an acceptable limit. Load frequency control of two area thermal system using. Connect the output of the function block to the torque input port, tm, of the machine block. Chapter 3 load frequency control using pi, fuzzy and polar. Load frequency control of single area thermal power system. The goals of the lfc are to maintain zero steady state errors in a multi area interconnected power system 1, 2. Simulations have been performed using matlab simulink.

The results exhibit that the steadystate and transient performance indices such as iae, settling time, and control effort are impressively enhanced by an amount of 87. To analysis the performance of two area power system in. Matlab is a programming language developed by mathworks. Load frequency control in four area power systems using. Actually, i am unable to create itae function in matlab because i have to put the value of delf1,delf2 and delptie from simulink model. Keywords pi controller, fuzzy controller, two area power system, load frequency control, matlab.

Matlab simulink and maintains the stability of the system frequency by balancing the total generation and total loads. Higher level of abstraction, suitable for higherlevel system models. Load frequency control of twoarea smart grid article pdf available in international journal of computer applications 11714. Sir, can you send me the itae function code of two area laod frequency control. In this thesis lfc is investigated using matlab 20 and simulink library in single area and multi. Two area load frequency control total concept youtube. Optimal controller for single area load frequency control via.

Matlab i about the tutorial matlab is a programming language developed by mathworks. These controllers provide a robust system which is more stable and reliable and helps the system to regain its normal state after any. It started out as a matrix programming language where linear algebra programming was simple. Load frequency control of multiarea power systems using pi. For example in a gas turbine, any change in the valve position. Load frequency control in two area power system using. Introduction for extensive level power systems which consist of interconnected control regions, load frequency. The proposed controller comprises two level control systems, such that it consists of a pure integral compensator which is connected in parallel with a pi controller. The project presents the controllers to regulate the system frequency. A new intelligent online fuzzy tuning approach for multiarea load frequency control. This tutorial gives you aggressively a gentle introduction of matlab programming language. Load frequency control of multiarea power systems using pi, pid, and fuzzy logic controlling techniques j. Single area load frequency control using traditional.