In this article, a four-phase dual armature-winding wound-field doubly salient machine with distributed field magnetomotive forces (DAW-WFDSM-DF) and corresponding double-redundant rectifier circuit are proposed to improve the electromagnetic performance of traditional WFDSM in terms output voltage ripple, fault-tolerant capability capability. Firstly, due uniformly machine, more feasible stato...

This article proposes a modular approachto the power sharing control of permanent magnet synchronous bearingless machine. The selected machine topology features winding layout with phases distributed into nonoverlapping three phase groups, solution whose twofold aim is to increase fault tolerance and allow for radial force generation. subwindings are supplied by standard three-phase inverter, l...

Partial demagnetization is a condition that may occur in Permanent Magnet machines due to overloading or thermal stress. Whenthis happens, the magnetic field locally weakens leading an asymmetry of air-gap field. This will cause harmonics, which be expressed as extra losses and mechanical oscillations. Moreover, since becomes weaker, more current required serve load less efficiency, increased c...

This paper presents a new three-layer, five-phase winding configuration theory of unconventional slot-pole combinations by each layer for phase vector correction, three layers superimposed together to achieve the results three-phase symmetry. Since single-layer has have an empty slot meet its symmetry, based on characteristics winding, design is carried out. Based simulation comparison between ...

Stator grounding is the most common fault of a large generator. If accurate coil can be located quickly and effectively, maintenance progress generator greatly sped up, put back into use as soon possible. For this purpose, stator location method for steam proposed, which takes distribution winding potential account. Firstly, characteristics influence are analyzed when single-phase ground occurs...