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This paper introduces a three-phase active power filter operating with fixed switching frequency and controlled by a fuzzy logic controller in the inner current control loop for each phase and a proportional–integral controller in the outer voltage control loop to compensate the reactive power and the current harmonic components simultaneously from the nonlinear loads.
In this paper, the way to use one of the most powerful problem-solving methodologies, fuzzy logic, to enhance the quality of the power system is described. To prove the power of fuzzy logic for the modeling of nonlinear systems, the modeling of active power filters with a fuzzy logic based control strategy is presented as a case study and its capability to reject reactive power eliminate current harmonic...
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