DocumentCode :
1853320
Title :
Reduction of detent force caused by the end effect of a high thrust tubular PMLSM using a genetic algorithm and FEM
Author :
Gruber, Sebastian ; Junge, Christian ; Wegener, Ralf ; Soter, Stefan
Author_Institution :
Inst. of Electr. Machines & Drives, Univ. of Wuppertal, Wuppertal, Germany
fYear :
2010
fDate :
7-10 Nov. 2010
Firstpage :
968
Lastpage :
973
Abstract :
In order to meet industrial safety standards in eccentric presses, the detent force of the acting high force tubular permanent magnet linear synchronous machines (PMLSM) should be reduced. The detent force is caused by two components: the slot effect and the end effect. Both effects are based on the reluctance change between permanent magnet (PM) and stator teeth. The slot effect is already optimized by the closing slot technique which is proven by measurements presented in this paper. The main topic is the reduction of detent force by using auxiliary poles at the end of the machine. Therefore a special genetic algorithm (GA) is developed which rates the simulation results of the FEM and produces new auxiliary poles. The combined simulation tries to find an optimal size and position for auxiliary poles to reduce the whole detent force. The numerical calculations propose a minimized detent force caused by the located poles, which is independent from the length of the machines (2, 3 or 5 modules).
Keywords :
finite element analysis; genetic algorithms; linear machines; permanent magnet machines; stators; synchronous machines; FEM; auxiliary poles; detent force reduction; genetic algorithm; high thrust tubular PMLSM; industrial safety standards; permanent magnet linear synchronous machines; stator teeth; Finite element methods; Force; Force measurement; Forging; Permanent magnets; Stator cores; Detent Force; FEM Simulation; Genetic Algorithm; Permanent Magnet Linear Synchronous Motor;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
IECON 2010 - 36th Annual Conference on IEEE Industrial Electronics Society
Conference_Location :
Glendale, AZ
ISSN :
1553-572X
Print_ISBN :
978-1-4244-5225-5
Electronic_ISBN :
1553-572X
Type :
conf
DOI :
10.1109/IECON.2010.5675499
Filename :
5675499
Link To Document :
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