Search results for "winding design"

showing 5 items of 5 documents

The use of slightly asymmetrical windings for rotating electrical machines

2018

Historically, asymmetrical windings in electrical machines have been rarely used and only for specified needs, because the adoption of symmetrical configurations has always been considered the only solution during the design stage of electrical machines. The aim of this work is to demonstrate with several examples that the use of slightly asymmetrical windings can be a reasonable choice and, in certain cases, a favorable option during the machine design stage, allowing the possibility of selecting a wider range of slot/pole number combinations, without affecting the performances of the machines. More in detail, an interior permanent magnet synchronous machine equipped with a symmetrical 3-p…

Computer science020209 energy020208 electrical & electronic engineeringWinding designCogging torqueMechanical engineeringEnergy Engineering and Power Technology02 engineering and technologyCogging torqueSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciModeling and simulationHarmonic analysisElectromagnetic coilModeling and Simulation0202 electrical engineering electronic engineering information engineeringAsymmetrical windingElectrical and Electronic EngineeringFEM analysiHarmonic analysi
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A general procedure for the construction of Gorges polygons for multi-phase windings of electrical machines

2018

This paper presents a simple and effective procedure for the determination of the Gorges polygon, suitable for all possible winding configurations in electrical machines. This methodology takes into account the determination of a Winding Distribution Table (WDT), in which all the information about the distribution of the currents along the stator periphery is computed and from which the Görges polygon are easily derived. The proposed method can be applied to both symmetrical and asymmetrical multi-phase windings, including concentrated, fractional, reduced and dead-coil ones. The examples provided in this paper demonstrate the versatility of the proposed method.

Distribution (number theory)Computer scienceMulti phaseStator020209 energy02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciTopologylaw.inventionHarmonic analysisstar of slotsElectrical machineSimple (abstract algebra)lawElectrical machinesdead-coil windings0202 electrical engineering electronic engineering information engineeringreduced systemsAsymmetrical windingElectrical machines winding design symmetrical winding asymmetrical winding reduced systems dead-coil windings star of slots.Renewable Energy Sustainability and the Environmentwinding designreduced systemstar of slotVisualizationElectromagnetic coilAutomotive EngineeringPolygonsymmetrical windingdead-coil winding2018 Thirteenth International Conference on Ecological Vehicles and Renewable Energies (EVER)
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A General Mathematical Formulation for Winding Layout Arrangement of Electrical Machines

2018

Winding design methods have been a subject of research for many years of the past century. Many methods have been developed, each one characterized by some advantages and drawbacks. Nowadays, the star of slots is the most widespread design tool for electrical machine windings. In this context, this paper presents a simple and effective procedure to determine the distribution of the slot EMFs over the phases and of the winding configuration in all possible typologies of electrical machines equipped with symmetrical windings. The result of this procedure gives a Winding Distribution Table (WDT), which can be used to define coils and coil groups connections and also to simply implement winding…

Control and OptimizationComputer scienceEnergy Engineering and Power TechnologyMechanical engineeringContext (language use)02 engineering and technologyStar (graph theory)Settore ING-IND/32 - Convertitori Macchine E Azionamenti Elettricilcsh:Technology01 natural sciencesstar of slotsSimple (abstract algebra)0103 physical sciences0202 electrical engineering electronic engineering information engineeringElectrical and Electronic EngineeringEngineering (miscellaneous)010302 applied physicselectrical machineslcsh:TRenewable Energy Sustainability and the Environment020208 electrical & electronic engineeringwinding designElectromagnetic coilTable (database)symmetrical windingelectrical machines; winding design; symmetrical winding; star of slotsEnergy (miscellaneous)
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Performance Comparison of Electrical Motors equipped with slightly Asymmetrical Windings

2019

This paper presents a comparison between the performances of electrical machines equipped with slightly asymmetrical windings. More in detail, by modifying the stator geometry of an Interior Permanent Magnet Synchronous Machine equipped with a symmetrical winding configuration, other two slightly asymmetrical winding topologies are obtained. The three models are, then, analyzed by means of a finite element method (FEM) and the related results are compared in terms of cogging torque, static characteristics and leakage factor. The obtained results demonstrate that the adoption of slightly asymmetrical windings could be an interesting alternative solution during the design stage of electrical …

Electric motorMaterials sciencebusiness.industry020209 energy020208 electrical & electronic engineeringWinding designCogging torque02 engineering and technologyStructural engineeringCogging torqueSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciFinite element methodHarmonic analysisElectromagnetic coilPerformance comparison0202 electrical engineering electronic engineering information engineeringStator geometryAsymmetrical windingbusinessFEM analysiHarmonic analysiLeakage (electronics)
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A General Investigation on the Differential Leakage Factor for Symmetrical and Asymmetrical Multiphase Winding Design

2020

This work provides an investigation based on a fast estimation of the degree of unbalance (D.U.%) and the differential leakage factor (&sigma

Control and Optimizationunbalance degreeEnergy Engineering and Power Technologysymmetrical windings02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciMachine designTopology01 natural scienceslcsh:TechnologyComputer Science::Hardware ArchitecturePhysics::Popular Physics0103 physical sciences0202 electrical engineering electronic engineering information engineeringElectrical and Electronic EngineeringEngineering (miscellaneous)MathematicsLeakage (electronics)010302 applied physicselectrical machinesDesign stageRenewable Energy Sustainability and the Environmentlcsh:T020208 electrical & electronic engineeringasymmetrical windingswinding designdifferential leakage factorFinite element methodElectromagnetic coilAsymmetrical windings; Differential leakage factor; Electrical machines; Symmetrical windings; Unbalance degree; Winding designMinificationEnergy (miscellaneous)Energies
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