Search results for " Synchronous motors"

showing 4 items of 4 documents

A Cogging Torque Minimization Procedure for Interior Permanent Magnet Synchronous Motors Based on a Progressive Modification of the Rotor Lamination …

2022

This article describes a simple cogging torque minimization procedure for interior permanent magnet synchronous machines (IPMSMs), consisting of a progressive modification of the rotor lamination geometry. This procedure can be generalized for the main topologies of PMSM, independently of the number of stator slots or the location of the permanent magnets. For this purpose, a basic IPMSM structure is analyzed by means of the FEM (finite element method) approach, and then, several other IPMSM geometries, obtained by adequately modifying the rotor lamination geometry of the basic IPMSM model without changing its stator configuration, are proposed and discussed. The trends of the cogging torqu…

Control and OptimizationRenewable Energy Sustainability and the EnvironmentEnergy Engineering and Power TechnologyBuilding and Constructioncogging torque interior permanent magnet synchronous motors permanent magnets harmonic analysis FEM analysis rotor laminationElectrical and Electronic EngineeringSettore ING-IND/32 - Convertitori Macchine E Azionamenti Elettricicogging torque; interior permanent magnet synchronous motors; permanent magnets; harmonic analysis; FEM analysis; rotor laminationEngineering (miscellaneous)Energy (miscellaneous)
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A model of a linear synchronous motor based on distribution theory

2012

The fundamental idea of this paper is to use the distribution theory to analyze linear machines in order to include in the mathematical model both ideal and non ideal features. This paper shows how distribution theory can be used to establish a mathematical model able to describe both the ordinary working condition of a Linear Synchronous Motor (LSM) as well the role of the unavoidable irregularities and non ideal features.

Electric motorIdeal (set theory)Distribution (number theory)Control theoryComputer sciencelinear synchronous motorsGeneral Physics and AstronomyOrder (ring theory)Linear motorSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciWorking condition
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Characterization of the parameters of interior permanent magnet synchronous motors for a loss model algorithm

2017

Abstract The paper provides the results of a detailed experimental study on the variations of the characteristics of an interior permanent magnet synchronous motor, when load, speed and/or magnetization conditions vary. In particular, the characterization is carried out by assessing, for several working conditions, the motor parameters that influence its efficiency. From the knowledge of the variability of these parameters, it is possible to develop a dynamic model of the motor, which accurately describes its behaviour and allows estimating the power losses for whatever speed and load. In order to validate the model, the values of the power losses obtained by using the model are compared wi…

Statistics and ProbabilityEngineering3304020209 energyCondensed Matter Physic02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciControl theoryComponent (UML)0202 electrical engineering electronic engineering information engineeringElectrical and Electronic EngineeringInstrumentationPermanent magnet synchronous motorInterior permanent magnet synchronous motorSpeed control drive systembusiness.industryApplied Mathematics020208 electrical & electronic engineeringInterior permanent magnet synchronous motors; Power loss minimization; Speed control drive systems; Statistics and Probability; 3304; Condensed Matter Physics; Applied MathematicsCondensed Matter PhysicsPower loss minimizationCharacterization (materials science)Power (physics)Settore ING-IND/31 - ElettrotecnicaMotor efficiencySynchronous motorbusinessSettore ING-INF/07 - Misure Elettriche E ElettronicheAlgorithmMeasurement
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The role of the effect of manufacturing tolerances on a tubular linear ferrite motor

2015

Electric machines are often designed without considering workmanship and materials tolerances. Their manufacturing process involves a series of steps, starting with raw materials and ending with the machine assembly. In each of these steps occur deviations due, for instance, to mistakes in positioning tools or to the tolerances in the electrical and magnetic characteristics of the materials. These deviations may cause unwanted parasitic effects such as torque ripple, losses or acoustic noise. Such effects have to be considered especially in machines used in industrial drives for high performance applications. Moreover the tolerances in the magnetic materials have a considerable effect on th…

Torque Forging Magnetoacoustic effects Synchronous motors Magnetization FerritesSettore ING-IND/11 - Fisica Tecnica AmbientaleDirect torque controlComputer scienceCogging torqueFerrite (magnet)TorqueMechanical engineeringTorque rippleWorkmanshipSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciSynchronous motorForging2015 IEEE Magnetics Conference (INTERMAG)
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