The aim of this work is to present a novel mechanical sensor-less control approach for permanent magnet brushless DC (PMBLDC) motors based on speed independent H functions. starting the motor and driving it from low rated are two significant problems in operation PMBLDC drives. commutation moment determined using speed-independent function. Since instant independent, may be anticipated even at ...

The traditional radial flux PMSM and axial have an effective air gap on only one side, between the stator rotor, generates electromagnetic torque. There are defects in magnetic-field utilization, it is difficult to improve torque density. Therefore, this paper proposes axial–radial-flux permanent-magnet synchronous motor (ARF-PMSM), which combines with flux, be used elevator-traction machine-dr...

This paper deals with the design of high power – low dimensions axial-flux permanent-magnet motor intended for traction application. First, two motor configurations are analytically designed and compared using finite element calculation. Then, the configuration yielding the best performances is integrated and modelled with the whole traction chain under MATLAB/SIMULINK environment in order to d...

single-phase squirrel cage and three-phase induction electromotors are the most popular electromotors used in industry from long ago. when an induction motor starts with direct connection method, it takes a lot of current from the power supply (several times the nominal current); so, several methods have been devised to start such electromotors. these methods either reduce the voltage of the st...

In this paper, a new type of axial gap motor, named the “flux-modulating hybrid-field consequent pole motor (FHCM)”, is proposed. To enable flux modulation, FHCM comprises rotor iron pieces sandwiched between two stators, armature, and field poles. The poles comprise permanent magnet poles, ring windings. magnetic can be adjusted by varying current. electromagnetic performance FHCM, including a...