Magnetic flux leakage modelling and optimisation of a CRAHMB for DC motor

In this study, a combined radial–axial hybrid magnetic bearing (CRAHMB) with four poles is designed for high-speed brushless DC motor. Owing to the small distance of radial and axial unit of CRAHMB, the magnetic flux leakage (MFL) in both radial and axial directions is complex and serious. This stud...

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Vydáno v:	IET electric power applications Ročník 11; číslo 2; s. 212 - 221
Hlavní autoři:	Ren, Xiaojun, Le, Yun, Sun, Jinji, Han, Bangcheng, Wang, Kun
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	The Institution of Engineering and Technology 01.02.2017
Témata:	brushless DC motors Circuits combined radial‐axial hybrid magnetic bearing control electromagnetic circuit CRAHMB Direct current Electric motors equivalent circuits equivalent magnetic circuit method finite element analysis finite element method high speed brushless DC motor Leakage magnetic bearings magnetic circuits Magnetic flux magnetic flux leakage modelling magnetic leakage Mathematical models maximum bearing capacity MFL analytical model optimisation Optimization permanent magnet circuit permanent magnets quadratic programming sequential quadratic programming method Stiffness magnetic flux permanent magnet circuit sequential quadratic programming method magnetic bearings high speed brushless DC motor equivalent circuits finite element analysis quadratic programming permanent magnets control electromagnetic circuit maximum bearing capacity magnetic circuits optimisation MFL analytical model finite element method magnetic flux leakage modelling equivalent magnetic circuit method CRAHMB magnetic leakage brushless DC motors combined radial-axial hybrid magnetic bearing
ISSN:	1751-8660, 1751-8679, 1751-8679
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