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Performance Evaluation of PV+Wind Co-Generation Based Multi-Purpose STATCOM for Power Quality Enhancement Using Fuzzy-Logic Controller

Now-a-days the electric power system faces many disturbances due to sudden interruptions coming from loads and also attains greater power quality features due to highly usage of non-linear loads. So, there is a requirement to restrict these sudden interruptions and mitigates the power quality issues. The distributed generation scheme with integration of renewable energy sources furnishes the feasible solution to acquire the stable power demand in grid-connected system under sudden load interruptions. Over the various compensation devices, the highly recognized multi-purpose Static Compensator is integrated to grid for attaining enhanced power quality features. A co-generation based grid-integrated renewable sources are used but, the output of these sources are maintained un-constant due to presence of variable source. In this paper, a novel current controller was developed to maintain output of co-generation system as constant and achieve the load demand continuously. But, the proposed current controller pre-requisites the traditional PI controller, which is controlled by intelligent based Fuzzy-Logic controller is adopted. The performance evaluation of proposed Multi-purpose Static compensator is verified by traditional PI and proposed Fuzzy-Logic based current controller by using MATLAB/Simulink tool and results are conferred with comparisons.