Frequency control of isolated wind and diesel hybrid MicroGrid power system by using fuzzy logic controllers and PID controllers

This paper presents a new application of fuzzy logic (FL) to1 an isolated network with a High Penetration, no-storage wind-diesel (HPNSWD) system. As a result of a study referring the behavior of an isolated electric system facing frequency disturbances, a fuzzy logic controller (FLC) was developed to improve the system´s dynamic performance. The validity of the proposed controller is evaluated by computer analysis using MATLAB/SIMULINK. The simulation results demonstrated that a small-scale wind turbine generation unit can be freely operated in an isolated distribution network without creating violation in power balance and voltage profile. The effectiveness of the fuzzy logic controller is then compared with that of a proportional-integral-and differential (PID) controller.

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