Feedback linearization control for active filters

Abstract

This paper presents the application of the feedback linearization theory to a three-phase shunt active lter. The solution is performed in a synchronous reference frame, dealing with multivariable aspects of system. The proposed control ensures a proper operation of active lter, allowing to achieve high power factor of the grid independent of constants obtained by operation points. Experimental results obtained from a prototype are presented in order to validate the proposed strategy, covering the analysis from stationary and transient responses.