Micro Hydro-Power Plants (MHPPs) are a reliable solution for supplying small powerrnconsumers in areas located far from the distribution grid. However controlling frequency of therngenerated power is one of the main problems in micro hydro power plants. This thesis presents arncontrol structure that ensures the frequency regulation of an induction generator (IG). Inductionrngenerator is chosen over synchronous generator because it has an advantage with price, rnrobustness, simpler starting and controlling mechanism. rnThe main work of this thesis is to design a cost effective frequency controller for MHPP. For therncontrol of the frequency, a fuzzy logic controller is used. The controller is modeled, designed andrnsimulated to be simple, fast response fuzzy logic based frequency control system and lower cost.rnFor lower cost, the fuzzy logic controller is realized using Field Programmable gate array ratherrnthan microcontrollers. rnThe frequency controller controls frequency of the micro hydro-power plant nearly constant.rnWhen the flow of water is minimum, the controller is designed to prevent component fromrndamage by initiating a shutdown. It is observed from the simulation results that the overshoot ofrnthe fuzzy controller for 75% load change and 0.2 mrn3rn/s flow rate is 2.74%, 3.04% and 3.46% andrnthe settling times are 20.87, 27.65 and 39.82 seconds. Moreover, the comparison of fuzzy logicrncontroller and PI controller is observed. rnThe fuzzy logic controller has been coded, compiled and simulated in VHDL using ModelSimAltera.rnFromrnsimulationrnresult,rnthernsystemrninferredrnmaximumrnoperatingrnfrequencyrnisrn5rnMHzrnwithrnrnarncriticalrnpathrnofrn199.3rnns.