PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessOpen Access
Shunt active power filters have been proved as useful elements to correct distorted currents caused by nonlinear loads in power distribution systems. This work presents an all-digital approach, based on the repetitive control technique, for their control. In particular, a special digital repetitive plug-in controller for odd-harmonic discrete-time periodic references and disturbances is used. This approach does not introduce high gain at those frequencies for which it is not needed, and thus it improves robustness. Additionally, the necessary data memory capacity is lower than in traditional repetitive controllers. The design is performed for the particular case of single-phase shunt active filter with a full-bridge boost topology. Several experimental results are also presented to show the good behavior of the closed-loop system.
CitationCosta-Castello, R.; Griñó, R.; Fossas, E. "Odd-Harmonic Digital Repetitive Control of a Single-Phase Current Active Filter". IEEE Transactions on Power Electronics, 2004, Vol. 19, No. 4, p. 1060-1068.
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