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This paper proposes the ferrite magnet-assisted synchronous reluctance (FMASR) machine topology for use as direct-driven generator in low-speed micro-wind power applications. The FMASR generator consists of a stator core hosting three-phase distributed winding, and a transversally-laminated rotor having multilayer flux-barriers with embedded FMs in flux-concentration arrangement. Analytical model...
Airborne high-speed synchronous generators rated in the power range of megawatts have been discussed. These generators are nowadays necessary for new aerospace missions, such as directed energy weapon (DEW) and airborne radar (AR). Requirements, ferromagnetic materials for magnetic circuits, electromagnetic design and cooling techniques for high-speed multimegawatt generators have been discussed....
Integrated starter/generator designs the flywheel, the flywheel cover and clutch as a whole. To meet the size requirements of space, a double-stator permanent magnet synchronous starter and generator was designed to realize both performance of starting and generating. This paper presents a new permanent magnet double-stator integrated-starter-generator (ISG) for hybrid electric vehicles (HEVs). The...
Through the analysis of the electromagnetic properties for the rotor coil of turbine generator, we obtained the main magnetic field variation characteristics for the rotor winding and put forward the short circuit fault between rotor inter-turns causing the potential difference and circulation between the parallel branches of generation stator winding spectral method was applied on the spectrum analysis...
The present work considers issues about optimization of the tooth zone of homopolar inductor generator with non-overlapping concentrated coils. The recommendations for the choice of optimal parameters of the tooth zone are made on the basis of the analysis of magnetic field in the machine's cross-section. The results of the experiment data of the inductor generator's test sample with the power of...
In order to improve the wind energy utilization factor of wind-power generation system, a new type of Permanent Magnet Synchronous Generator(PMSG) with Opposite-rotation Dual Rotors(ODR) has been proposed in this paper, mechanical structure and operation mechanism have been discussed. Magnetic field has been analyzed by FEM and circuit method. Magnetic flux, flux density and EMF are calculated to...
Generator air gap non-uniformity causes an imbalance of magnetic forces that result in unbalanced magnetic pull - UMP. This phenomenon can cause high vibrations on the rotor. The addition of equipotential connections leads to an increment of the circulating current among parallel circuits of the stator winding, decreasing the magnetomotive force of armature reaction. Since the forces of magnetic attraction...
This paper focused on the research of new pattern ground power supply unit for start, and major in the doubly salient electro-magnetic motor (DSEM). Based on sufficient analysis of the doubly salient generator, this paper adopted multi-winding DSEM to get a new type of machine which matches the demand of aeronautic ground power system. This motor is simple, reliable and lower cost. And the experimental...
This paper introduces a new type of permanent magnet claw pole generator (PMCPG) with outer rotor. The magnetic circuit and electrical circuit model of this kind of machine have been built, and the effect of armature current on magnetic field is also considered in the models. The operation characteristics are simulated by means of powerful simulation software on the basis of coupling between magnetic...
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