This work covers an improvement upon hydropower supply in Nigeria. The major problem plaguing hydro-plants is the slow turbine rotation of the hydro turbines, which in turn causes unfavorable voltage fluctuations. Fuzzy Logic Control was employed to provide the solution, by using membership functions to analyze and increase slow turbine rotation. A model was employed using fuzzy software tool to control Hydropower Generator speed. Power transmission control was improved with the incorporation of Flexible AC Transmission Systems (FACTS). The type of FACTS controllers employed in this report are those based on voltage sourced converter (VSC), particularly the Static Synchronous Compensator (STATCOM), and also solid state var compensator (SSVC). Data gathered from previous research on the Nigerian 330kv transmission network show that the system is weak with power losses and voltage fluctuations from faulty buses. A MATLAB/Simulink model was employed to observe the results of application of these FACTS devices into the 3330kv National Grid. The results show that the devices greatly improved the voltage stability of the network and improved power loses.
Keywords: Fuzzy Logic Control, Fuzzy Software, FACTS, STATCOM, MATLAB/SIMULINK, Voltage Stability
Author: :Tikili Wisdom Yenimi
Supervising Lecturer: Dr. Shadrack, M. U