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A number of conventional time-varying step size algorithms have been tried on the active power filter (APF), and experiments indicate that their performance is highly sensitive to the noise disturbance. The paper presents a novel adaptive algorithm using the weighted average estimation of error signal e (n) to control the updating of the step size. It can provide a faster convergence at early stage...
The conventional detecting methods for harmonic currents have various limitations. In this paper, according to the adaptive noise canceling technology in the signal processing, an improved adaptive algorithm of detecting harmonic currents is presented. It adopts a new variable step size least mean square (LMS) method allowing more flexible control of misadjustment and convergence time without the...
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