Suppression of the 5th and 7th current harmonics of an IPMSM

Abstract

This report presents an extension of the Field Oriented Control technique to suppress the 5th and the 7th current harmonics of an IPMSM. The influence of the current harmonics on the fundamental control loop is analyzed and a proposition for their identification is given. Two additional control loops -in parallel with the fundamental control loop-have been implemented and succeed in controlling the value of the previously mentioned harmonics to zero. Data of experimental tests are enclosed and validate the approach.