According to star graph and winding distribution, MMFs of three kinds 12-slot/10-pole multi-phase multi-layer layout are analyzed by the improved function method. Analysis results show that can suppress even order (12n ± 1) harmonics, thereby reducing eddy-current loss in PMs. Based on unfolded LPMSM model, rotor MMF, air gap flux density, no-load back-EMF analytical permeance method, which is ...

A new monitoring method for determination of average hydrogenerator field winding temperature is introduced in order to increase the robustness measurement system using classic U-I method. The approach prone error due brush voltage drop, especially when low. Developed thermal model based on current and cold cooling air measurements, as well temperatures acquired from digital sensors mounted acr...

A novel model reference adaptive system for the rotor position/speed estimation and sensorless operation of a brushless doubly fed reluctance generator with maximum power point tracking is presented. Its main advantage over existing designs are inherent robustness stability afforded by complete parameter independence using only measured currents converter-fed (secondary) winding. In addition, r...

This paper presents a method based on neural networks to detect broken rotor bars and end rings in squirrel cage induction motors. In the first part, detection methods are reviewed and traditional methods of fault detection as well as dynamic&#10model of induction motors are introduced using the winding function method. In this method, all stator and rotor bars are considered independently in o...

This paper presents a two-dimensional analytical model for brushless double-rotor flux-switching permanent magnet machines (BDRPFSPMM) with yokeless stator recognized as type of partitioned-structure that is an appropriate machine to be employed the electric motor in industry. The most salient advantages proposed are low iron loss due volume and high space slot winding. radial tangential compon...

The paper deals with faults diagnosis method proposed to detect the inter-turn and turn earth short circuit in stator winding of three-phase high-speed solid rotor induction motors. This based on negative sequence current motor fuzzy neural network algorithm. On basis analysis 2-D electromagnet field impedance has been derived develop equivalent circuit. is simulated by MATLAB software study re...

<span>Permanent-magnet excitation machines (SPMMs) having mounted magnet on the outer surface of their rotor are preferred for high speed applications such as turbochargers, mechanical turbo-compounding systems, racing engines and fuel pumps, over other types including induction switched-reluctance machines, since SPMMs integrate features torque density, compact structure, reliability sim...