USING MULTIPLE SALIENCIES FOR THE ESTIMATION OF FLUX, POSITION, AND VELOCITY IN AC MACHINES

This paper presents an improved method of estimating flux angle, rotor position, and velocity by tracking the position of spatial saliencies in an ac machine. Specifically, a machine model is presented which ac curately models the behavior of ac machines with multiple spatial harm onic saliencies. The effects of multiple spatial harmonic saliencies o n the estimation of flux angle, position, and velocity is analyzed, an d methods are presented utilizing multiple spatial harmonic saliencies to provide wide bandwidth, high accuracy estimates of flux angle, rot or position, and velocity.