Dynamic Modeling and Active Power Control of Hydro Power Plant Using Fuzzy Logic Controller; Case of Finchaha Hydro Power Plant

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Date

2018-10

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Addis Ababa University

Abstract

Hydro power plant plays an important role in a safe, stable and efficient operation of electric power systems, Performance of hydro power in terms of frequency and power control increasingly important. This is as a result of sophistication of hydro power plant dynamic modeling. In this thesis, Finchaha hydro power plant dynamic model, frequency and power control simulation has been performed for different operating conditions. Then, for Grid Connected operation and Isolated Operation power response has been investigated. An intelligent governor has been design by using a fuzzy logic controller replacing the conventional governor control of Frequency and Power on Matlab Simulink. The simulation result show that the overall system output performance can be improved using the proposed fuzzy logic governor, the fuzzy logic controller resulted less percentage overshoot (0.505%), fewer settling time (2.8sec) and less rise time (439.153ms) as compared to 17.059%, 5.81sec and 717.643ms for PID controller under grid operation, for Isolated operation to fuzzy logic controller resulted less percentage overshoot (0.465%), fewer settling time(2.671sec) and less rise time (1.171sec) as compared to 3.646%,4.32sec and 1.429sec as compared to existing PID controller

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Keywords

Logic Controller, Governor, Power Control, Hydro Power Plant, Frequency Control, Power Control

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