Search results for "Linear machine"

showing 5 items of 5 documents

Design criteria of tubular linear induction motors and generators: A prototype realization and its characterization

2013

In this paper a mathematical model of tubular linear induction machines (TLIM) with hollowed induced part is recalled. Moreover the design criteria of a TLIM with hollowed iron induced part are presented as well as the technological processes to be adopted and the choice of materials to construct the various parts. The methodologies for mechanical assembling and electric wiring are considered too. A prototype with bimetallic induced part has been designed and built. Finally some experimental results on electrical and mechanical variables, when the machines are used as motors, are shown.

Linear machinesMathematical modelTubular induction motorsTubular induction generatorsCylindrical coordinateLaminationTubular induction generatorLamination.lcsh:Electronic computers. Computer scienceCylindrical coordinatesSettore ING-IND/32 - Convertitori Macchine E Azionamenti Elettricilcsh:QA75.5-76.95Linear machine
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A comparison among different kinds of stator lamination in tubular linear machines

2016

In this paper the authors perform a comparison among three different stator structures for a Tubular Permanent Magnet Linear Machine. Each structure is characterized by its own lamination which is expected to contribute to the overall performance of the machine. A detailed analysis of the main figures of merit of the three configurations has been carried out in order to identify the configuration with the best characteristics. Significant data such as flux distribution, rated voltage and current, force on the moved and power losses have been compared. The results show that the choice of a mixed stator lamination allows to improve the performance of these machines.

Electronic Optical and Magnetic Materials; Condensed Matter PhysicsFlux distributionStator laminationTubular linear machinesComputer scienceStator020209 energy02 engineering and technologyRated voltageLamination (topology)Settore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciCondensed Matter PhysicsStator structureLinear machineElectronic Optical and Magnetic Materialslaw.inventionPermanent magnetPower-losselawFigures of meritElectronic0202 electrical engineering electronic engineering information engineeringOptical and Magnetic MaterialsComposite materialLaminating
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Technical and economical comparison between NdFeB and hard ferrites linear electrical generators from sea waves

2015

In this paper the authors perform a technical-economic comparison of two different Tubular Permanent Magnet Linear Machines for sea waves generation by using finite elements analysis. The first configuration includes ferrite rings while the second configuration includes neodymium-iron-boron rings. In order to compare the two types in economic and technical terms, a detailed analysis of the main figures of merit of the two configurations has been carried out. In particular, significant data such as flux distribution, rated voltage and current, axial force, electric power, realization cost and maintenance cost have been compared.

neodymium-iron-boronpermanent magnets linear machineComputer sciencebusiness.industryRenewable Energy Sustainability and the EnvironmentElectrical engineeringMechanical engineeringElectric generatorEnergy Engineering and Power TechnologySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciMagnetic fluxFinite element methodlaw.inventionferriteNeodymium magnetlawMagnetFigure of meritsea wave generatorElectric powerbusinessSettore ING-INF/07 - Misure Elettriche E ElettronicheVoltage
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Optimization of cogging force in a linear permanent magnet generator for the conversion of sea waves energy

2015

In this paper an approach to the optimization of cogging force in a linear permanent magnet generator for the conversion of sea waves energy is presented. We have optimized the cogging force of a linear permanent magnet generator by using a 3D FEM parametric simulation. Several possible design solutions have been computed. A generator has been built and the results of the minimization procedure has been experimentally validated.

Sea wavesEngineeringSettore ING-IND/11 - Fisica Tecnica Ambientalebusiness.industryLinear MachinedMechanical EngineeringCogging ForceMechanical engineeringPermanent magnet synchronous generatorSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciElectric MachineMagnetic fluxForgingFinite element methodGenerator (circuit theory)Quantitative Biology::Quantitative MethodsAutomotive EngineeringElectronic engineeringMinificationElectrical and Electronic EngineeringbusinessEnergy (signal processing)
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A general comparison between various types of linear generators for wave energy conversion

2017

This paper presents a general comparison between various types of linear generators for wave energy conversion. According to the type of magnetic configuration they are distinguished as: linear asynchronous generators, linear generators with permanent magnets and linear reluctance generators. The paper shows their peculiarities and discusses their field of applications.

Automotive EngineeringOcean EngineeringSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciOceanographyAcoustics and UltrasonicInstrumentationLinear machineWater Science and Technology
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