Fundamental saliency based encoderless control for reluctance synchronous machines

Abstract

This paper presents a rotor position estimation and sensorless control scheme for reluctance synchronous machines for medium to high speed. The position information is obtained from the fundamental saliency of the machine. First a linear estimation scheme is derived in theory and then extended for the nonlinear effects in a real machine. Finally the performance of the proposed scheme is proved by stationary and dynamic measurements.