Sources of Cogging Torque in Coreless Axial Flux PMG Without Stator Slots

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#1 21676295 05 Aug 2016 01:03

akbar mohammadi akbar mohammadi

Anonymous

Post #1
21676295 05 Aug 2016 01:03

Hi to all. I am simulating a "core less axial flux PMG". This PMG has significant cogging torque. I don't know where this torque comes from because this is a core less generator therefor there is no slot in stator ( no reluctance variation).
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#2 21676296 05 Aug 2016 18:54

Kevin Angelo Ma Kevin Angelo Ma

Anonymous

Post #2
21676296 05 Aug 2016 18:54

Have you read this? http://www.mojaladja.com/upload/elmotor/276_EWEC2009presentation.pdf
#3 21676297 06 Aug 2016 01:46

akbar mohammadi akbar mohammadi

Anonymous

Post #3
21676297 06 Aug 2016 01:46

It says that there is no cogging torque in coreless PMG. But i see cogging torque in transient simulation of pmg( in Ansoft Maxwell). The strange problem is that i don't see cogging torque in static simulation with sweeping rotor angle. I'm badly confused.
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Sources of Cogging Torque in Coreless Axial Flux PMG Without Stator Slots

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