Frequency adaptive repetitive controller for grid-connected inverter with an all-pass infinite impulse response (IIR) filter


The repetitive controller is widely employed in grid-connected inverters to improve the power quality. Its resonant frequencies are predesigned to the nominal grid frequency and its harmonics to achieve excellent reference tracking and disturbance eliminating. However, the performance degrades when the grid frequency varies. In this paper, a frequency… (More)
DOI: 10.1109/ISIE.2014.6864662

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