Open AccessA Dovetail Joint for a Segment Permanent Magnet on a Rotor
Author(s) -
Roman Ilyasov,
Dmitry Dezhin
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1891/1/012005
Subject(s) - rotor (electric) , materials science , magnet , stator , air gap (plumbing) , harmonics , mechanical engineering , structural engineering , excitation , composite material , electrical engineering , engineering , voltage
Specific weight-power parameters (kW/kg, (kW/dm 3 )) of rotary electric machines depend on the rotational speed of the rotor. Bandage in high-endurance titanium [1] or carbon fiber-based nonmagnetic materials is used conventionally to enhance the rotor strength of magnetoelectric excitation high-speed electric machines. Eddy currents induced by tooth harmonics are seen as a major flaw in weighty titanium bandage, while a widened mechanical gap between the rotor and the stator is the principal shortcoming of nonmagnetic bandage, as it reduces magnetic induction values within the gaps. This article discusses a way to increase the rotor top rotational speed (the radial speed) through a dovetail permanent magnet joint solution without using additional titanium or carbon fiber bandage.