Novel Ideas for Evaluating a Detection Method for the Harmonic and Reactive Currents of a Single-Phase Active Power Filter

摘要

Comparisons and analyses of the simulation waveforms of three typical detection methods for the harmonic and reactive currents of a single-phase active power filter lead to the following question: Does a higher detection precision of a detection method for the harmonic and reactive currents of a single-phase active power filter correspond to a better operation at a dynamic adjusting detecting state? To answer this question, novel ideas for evaluating a detection method for the harmonic and reactive currents of a single-phase active power filter are pro*posed by considering the Fourier series expression of a nonlinear load current with the operation principle and essential function of an active power filter as the theoretical bases.