Search results for "Brushed DC electric motor"

showing 4 items of 4 documents

Electromechanical properties of a disc‐type salient‐pole brushless DC motor with different pole numbers

2003

A brushless, permanent magnet, three‐phase disc‐type salient‐pole DC motor with co‐axial flux in the stator is considered. Electromechanical properties of a basic eight‐pole motor are compared with those for a 16‐pole one of the same volume, in order to contrast the two potential candidates for variable‐speed, low‐cost drives. As a basis of the comparative analysis, 3D FEM magnetic field modelling and circuit analysis considering an electronic commutator are employed. Increasing the number of poles results in unfavourable raising in the switching frequency. The eight‐pole motor construction has been shown in simulations to have higher efficiency and lower power losses than its 16‐pole count…

PhysicsUniversal motorApplied MathematicsDC motorAC motorField coilSwitched reluctance motorComputer Science ApplicationsComputational Theory and MathematicsControl theoryBrushed DC electric motorElectrical and Electronic EngineeringSynchronous motorInduction motorCOMPEL - The international journal for computation and mathematics in electrical and electronic engineering
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Flux density at the airgap of small DC motors with different permanent-magnet poles

1993

Electromagnetic fieldPhysicslawMagnetBrushed DC electric motorMechanical engineeringCommutator (electric)DC motorFinite element methodShape controllaw.invention[1993] Digests of International Magnetics Conference
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An Influence of Permanent Magnet Shape on the Torque Ripple of Disc-Type Brushless DC Motors

2006

An analysis of the torque developed by two types of the disc-type permanent magnet (PM), brushless DC motors: slotted torus motor and motor with stator salient poles is presented. The calculations were performed using three-dimensional finite element method (FEM). Two shapes of PMs are analyzed: trapezoidal and rectangular. The results show that application of rectangular shaped PMs provides significant reduction of the torque ripple in both considered motors.

Physicsbusiness.industryStatorStructural engineeringDC motorFinite element methodlaw.inventionQuantitative Biology::Subcellular ProcessesDirect torque controllawMagnetBrushed DC electric motorTorqueTorque ripplebusiness
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Performance analysis of photovoltaic powered dc motor — Propeller system

2015

The application of autonomous directly photovoltaic (PV) powered electro-mechanical has received increasing attention for different applications (e.g. PV water pumping, PV powered cooling of arid climate greenhouses, solar vehicles etc). The PV array output is a nonlinear and time-dependent power supply that varies with solar intensity and cell temperature, so the performance characteristics of the directly PV-powered DC motor — propeller system are very different than when powered by a constant DC voltage. The focus of this work is to do performance analysis of directly PV-powered DC motor — propeller system. Through performance evaluation, it has been observed that power transfer matching…

Water pumpingMaximum power principleComputer sciencePhotovoltaic systemPropellerAerodynamicsDC motorAutomotive engineeringMaximum power point trackingControl theoryGrid-connected photovoltaic power systemBrushed DC electric motorTorqueMaximum power transfer theorem2015 IEEE International Conference on Signal Processing, Informatics, Communication and Energy Systems (SPICES)
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