Sensorless control of switched reluctance motor drive with self-measured flux-linkage characteristics

Abstract

In this paper, a novel discrete position estimation scheme for sensorless operation of switched reluctance (SR) motor drive is proposed. The classical flux-current approach is adopted for estimating the position. In the proposed method, the required flux-linkage characteristics measurement is automated and integrated as a part of the sensorless controller. The algorithm is tested on a real motor and the relevant test results are presented. The method is suitable for low-cost mass-produced applications.