Paper Title
Time Domain Method For Harmonic Detection In Active Power Filter

—Traditionally, passive shunt filters are installed near nonlinear loads to mitigate harmonic currents. However, the passive filters have drawbacks such as fixed compensation, large size, and resonance. These limitations can be overcome by power electronics solution – active power filters. Compared with conventional passive filters, modern active power filters are superior in filtering performance, smaller in physical size and more flexible in application [1]. The active power filter detects harmonic information in non-linear load currents and actively injects counter harmonic currents to the grid so that the currents at Point of Common Coupling (PCC) approximate sinusoidal waveforms. Therefore, in this paper various time domain methods for harmonic detection are discussed and also the results are obtained. Further active filter current harmonics has been proposed. Index Terms —APF, Harmonics Time domain, MATLAB