DL
D.J.P. Lahaye
119 records found
1
Authored
The machine under study is a surface-mounted outer rotor permanent magnet (PM) synchronous machine with concentrated windings, which is integrated in a flywheel of a diesel engine. The main objective of this work is to build an accurate nonlinear transient finite element method (
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Permanent Magnet (PM) machines with
concentrated windings are cost effective, compact and
highly efficient. The application of such machines in large
Direct Drive (DD) wind turbines can be advantageous.
However, these machines have the problem of eddy
current losses in solid part
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This paper focuses on influence of design parameters of permanent magnet machines with concentrated windings on cogging torque, torque ripple and mean torque. An efficient approach is presented to estimate the magnet width and slot opening width for minimizing cogging torque and/
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In literature, many different expressions for Carter factor can be found leading to confusion. This paper evaluates Carter factor expressions by comparing finite element computations in order to find the most suitable one which can be used in the design of permanent magnet machin
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This paper presents feasible options for generators in flywheel of diesel engine for small maritime application. An outer rotor permanent magnet (PM) machine with concentrated windings is preferred for this application since it has good integration in a flywheel, higher power den
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Five promising permanent magnet (PM) machine configurations, namely machine 1 with 24-slot/16-pole, machine 2 with 27-slot/18-pole, machine 3 with 24-slot/20-pole, machine 4 with 24-slot/28-pole and machine 5 with 27-slot/24-pole are compared to find out the best one for a small
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This paper presents a concept in the form of a flow chart for analyzing and designing permanent magnet machine by finite element method (FEM) including rotor motion. According to our flow chart, geometry modeling will automatically be made by script. Therefore, it is easy in chan
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This paper studies distribution of eddy currents and eddy current losses in the rotor of concentrated winding exterior rotor permanent magnet machines in flywheels. The two-dimension nonlinear transient finite element method (FEM) model including rotor motion was used. Influence
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Permanent Magnet machines have a high force density and high efficiency. These machines can be made cost effective by using fractional-pitch windings as the fabrication of such windings can be automated. However, one big challenge to design such machines is to analyze the eddy-cu
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