This work presents a switched modulated filter compensation/modulated filter capacitive compensator (SFC/MFCC) scheme to improve electrical energy utilization, enhance power quality and reduce excursions on Distribution/Utilization hybrid linear and nonlinear/inrush type motorized loads on the AC electric utility systems. The dual pulse width modulated (PWM)-switched SFC/MFCC does function as harmonic mitigate tuned arm filter plus reactive compensation device for hybrid linear/ nonlinear/ motorized loads. This is achieved by complementary modulation of switching PWM action controlled by multi loop fuzzy logic controller. The pulse modulation is determined in each control time step by the aggregate sum of deviation errors in voltage and dynamic current/ power changes. The novel FMCC-SFC filter can be extended to other interface applications of nonlinear DC-AC grid systems and customized to voltage dynamic stabilization and voltage regulation tasks on AC grid systems.

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