Magnet shaping to reduce induced voltage harmonics in PM machines with surface mounted magnets

Magnet shaping to reduce induced voltage harmonics in PM machines with surface mounted magnets

A simple methodology for reducing induced voltage harmonics in permanent magnet (PM) machines by selecting the appropriate magnet shape and dimensions is presented. The method, which uses a simplified analytical model of the magnetic circuit, is applied to three basic magnet shapes (rectangular, ste...

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Veröffentlicht in:IEEE transactions on energy conversion 1991-03, Vol.6 (1), p.155-161
Hauptverfasser: De La Ree, J., Boules, N.
Format: Artikel
Sprache:eng
Schlagworte:
240100 - Power Systems- (1990-)
Applied sciences
COMPUTERIZED SIMULATION
CONTROL
Electrical engineering. Electrical power engineering
Electrical machines
ENERGY SYSTEMS
Exact sciences and technology
HARMONICS
Magnetic analysis
Magnetic circuits
Magnetic flux
MAGNETS
OSCILLATIONS
PERMANENT MAGNETS
Permeability
POWER
POWER SYSTEMS
POWER TRANSMISSION AND DISTRIBUTION
Saturation magnetization
Shape
SIMULATION
Surface waves
TORQUE
Voltage
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Zusammenfassung:A simple methodology for reducing induced voltage harmonics in permanent magnet (PM) machines by selecting the appropriate magnet shape and dimensions is presented. The method, which uses a simplified analytical model of the magnetic circuit, is applied to three basic magnet shapes (rectangular, stepped, and trapezoidal), and can be extended to more complex geometries. The results of the analytical models are compared with results obtained from finite element analysis and with test results.< >
ISSN:0885-8969
1558-0059
DOI:10.1109/60.73802