Poles position identification of permanent magnet axial flux motor using PIPCRM sensorless method.

Abstract

The paper describes new sensorless method control of an axial flux permanent magnet motor at standstill and at low speed. This sensorless method called PIPCRM (Position Identification by Parallel Current Rate Measurement) was developed to provide sensorless start axial flux permanent magnet motor in demanded direction from standstill. The PIPCRM method is used to detect rotor poles position and then to force the stator current to achieve motor torque which is required to control motion of the permanent magnet motor. The paper presents theory of the PIPCRM method and laboratory tests that confirm its application to drives.

Sensorless control of the axial flux permanent magnet synchronous motor at standstill and at low speed

“…The current responses analysis is required to obtain the position of the rotor [7]. The main problem is sensitivity of analysis on test voltage step parameters.…”

Rotor Position Estimation Strategy Using Artificial Neural Network for a Novel Design Transverse Flux Machine

“…In 2007, the paper by Wisniewski is published about rotor position estimation of the axial flux permanent magnet machines with inductance based sensorless methods [18]. Also, a transverse flux linear reluctance machine using neural networks method is presented by Zongsong [19].…”