Considerations about sensorless control of permanent magnet synchronous motors at low speed and standstill for wheel mounted drive of tram

Abstract

This paper deals with considerations about features of sensorless control for gearless wheel mounted drives of trams. This paper presents and compares properties of IPMSM and PMSM drives with pulsating injection sensorless control at low speeds. The proposed sensorless control and its features are verified by tram drive simulations and laboratory tests.