Search results for "Damping torque"

showing 3 items of 3 documents

An IPMSM torque/weight and torque/moment of inertia ratio optimization

2014

In this paper, a torque/weight and torque/moment of inertia ratio optimization procedure for interior permanent magnet syncronous motors (IPMSMs) is presented. More in detail, a performance comparison between several IPMSM rotor structures has been carried out in order to determine the optimum geometry that can maximize the torque/weight and torque/moment of inertia ratios. A commercial motor, with known electrical and mechanical characteristics, has been taken as reference. Its rotor structure has been modified several times, obtaining different rotor geometries and, therefore, many IPMSM models with different electrical and mechanical characteristics. The finite element method (FEM) analy…

ynchronous motorStall torquetorque-weight ratio optimizationMaterials scienceoptimisationpermanent magnet motorfinite element methodtorque-load-angle characteristicSettore ING-IND/32 - Convertitori Macchine E Azionamenti Elettricilaw.inventioninterior permanent magnet syncronous motorPermanent magnetmagnetisationControl theorylawRotorTorque sensorTorquetorque/weight ratioInduction motorDamping torqueFEM analysiLoad modelingTorque motorRotor (electric)finite element analysis;magnetisation;optimisation;permanent magnet motors;rotors;synchronous motors;IPMSM rotor structures;finite element method;interior permanent magnet syncronous motors;torque-load-angle characteristics;torque-moment of inertia ratio optimization;torque-weight ratio optimization;Induction motors;Load modeling;Permanent magnet motors;Permanent magnets;Rotors;Stators;Torque;FEM analysis;IPMSM;optimization;permanent magnets;torque/moment of inertia ratio;torque/weight ratioControl engineeringtorque-moment of inertia ratio optimizationStatorMoment of inertiafinite element analysiIPMSMDirect torque controlTorqueIPMSM rotor structureoptimizationtorque/moment of inertia ratio
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Analysis of Torque Developed in Axial Flux, Single-Phase Brushless DC Motor With Salient-Pole Stator

2004

An analysis of the torque developed by a single-phase disc brushless permanent magnet motor with salient-pole stator is presented. The machine represents a new family of brushless disc motors with the starting torque issue appearing to be most challenging. To produce a starting torque, the permanent magnets on one of the rotor discs are distributed nonuniformly. However, this significantly distorts a shape of the cogging torque versus rotational angle characteristic which, in turn, affects a waveform of the overall torque. A three-dimensional (3-D) finite-element model is used for the purpose of determining of angular variations of the torque developed by the motor. To find how the torque v…

PhysicsStall torqueTorque motorCogging torqueEnergy Engineering and Power TechnologyControl engineeringQuantitative Biology::Subcellular ProcessesTorque limiterDirect torque controlControl theoryTorque sensorAstrophysics::Earth and Planetary AstrophysicsElectrical and Electronic EngineeringDamping torqueSynchronous motorIEEE Transactions on Energy Conversion
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PVDF based vibration measurements and their correlation with torque estimation in a FOC induction motor drive

2008

This paper presents a study concerning the vibrations generated by an induction motor drive controlled by field oriented control algorithm (FOC). The aim of the study is to identify suitable measurement points and analysis techniques in order to achieve information about vibration generated by an electric drive. Vibrations take origin both by the torque generated by the motor and the motor supply through an inverter, then they are transmitted to neighbouring structures. Torque is estimated on the basis of the estimated flux linkage; vibrations have been both measured and analysed numerically by FEM at two points of the cradle. The numerical and experimental analysis have been carried out fo…

EngineeringElectronic speed controlpolyvinyledene fluoride polymer (PVDF)Vector controlbusiness.industryVibration measurementFlux linkageInduction Motor DrivePolyvinyledene fluoride polymer (PVDF) vibration sensors Vibration measurementvibration sensorsDirect torque controlControl theorySettore ING-IND/12 - Misure Meccaniche E TermicheTorqueTorque sensorbusinessDamping torqueInduction motor
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