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Volume 2, Issue 5, October 2013, Page: 191-196
Load Frequency Control of Interconnected Hydro-Thermal Power System Using Conventional PI and Fuzzy Logic Controller
Muhammad Ahsan Zamee, Department of Electrical & Electronic Engineering, World University of Bangladesh, Dhaka, Bangladesh
Dipankar Mitra, Department of Electrical & Electronic Engineering, Chittagong University of Engineering and Technology, Chittagong, Bangladesh
Sadaf Yusuf Tahhan, Department of Electrical & Electronic Engineering, Chittagong University of Engineering and Technology, Chittagong, Bangladesh
Received: Sep. 8, 2013;       Published: Oct. 30, 2013
DOI: 10.11648/j.ijepe.20130205.12      View  3712      Downloads  414
Abstract
In industry or any area increasing load is a vast problem for power generation plants due to increase in demand for power. So making balance between generation and demand is the operating principle of load frequency control (LFC). The reliable operation of a large interconnected power system necessarily requires an Automatic Generation Control (AGC). The objective of AGC is to regulate the power output of Generators within a specified area in response to change in the system frequency, tie line power or relation of the two to each other, so as to maintain the scheduled system frequency and power interchange in the other are within the prescribed limits. This paper presents the use of conventional PI controller and artificial intelligence to study the load frequency control of interconnected power system. In the proposed scheme, a control methodology is developed using conventional PI controller and Fuzzy Logic controller (FLC) for interconnected hydro-thermal power system. The control strategies guarantees that the steady state error of frequencies and inadvertent interchange of tie-lines power are maintained in a given tolerance limitations. The performances of the controllers are simulated using MATLAB/SIMULINK package. A comparison of Fuzzy controller and PI controller based approaches shows the superiority of proposed Fuzzy logic controller for step change in loading conditions. The simulation results also tabulated as a comparative performance in view of settling time and peak over shoot.
Keywords
Load Frequency Control, Fuzzy Logic Controller, PI controller, MATLAB/SIMULINK
To cite this article
Muhammad Ahsan Zamee, Dipankar Mitra, Sadaf Yusuf Tahhan, Load Frequency Control of Interconnected Hydro-Thermal Power System Using Conventional PI and Fuzzy Logic Controller, International Journal of Energy and Power Engineering. Vol. 2, No. 5, 2013, pp. 191-196. doi: 10.11648/j.ijepe.20130205.12
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