On the use of harmonic detection algorithms for active power filtering control

In the present work a technical review of several algorithms of harmonic currents compensation has been presented. The instantaneous reactive power theory (PQ theory), the Multi-Variable Filter FMV and Synchronous Reference Frame have been analyzed and compared under distorted and unbalanced conditions. The adopted strategy consists in first time in imposing a constant time response then the THD of the fundamental signal delivered by each method is computed; in second time the reversal case is considered; a THD value is imposed then the time response constant of each method will be computed. The simulation results obtained have been verified experimentally using Dspace 1104 platform.