Search results for "Reduced systems"

showing 2 items of 2 documents

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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Building blocks for odd–even multigrid with applications to reduced systems

2001

Abstract Building blocks yielding an efficient implementation of the odd–even multigrid method for the Poisson problem in the reference domain (0,1) d , d=2,3, are described. Modifications needed to transform these techniques to solve reduced linear systems representing boundary value problems in arbitrary domains are given. A new way to define enriched coarser subspaces in the multilevel realization is proposed. Numerical examples demonstrating the efficiency of developed multigrid methods are included.

Mathematical optimizationApplied MathematicsLinear systemMultigridReduced systemsLinear subspaceDomain (software engineering)Computational scienceComputational MathematicsMultigrid methodBoundary value problemRealization (systems)Poisson problemMathematicsJournal of Computational and Applied Mathematics
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