Permanent magnet machine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10374500
APP PUB NO 20170331337A1
SERIAL NO

15528398

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A rotor for a permanent magnet machine includes first and second axially successive rotor sections each including permanent magnets generating magnetic field having a pole pitch. The rotor includes a first coupling system for connecting the first rotor section to a shaft and a second coupling system for connecting the second rotor section to the shaft or to the first rotor section. The second rotor section is rotatable with respect to the first rotor section by an angle corresponding to the pole pitch in response to releasing the second coupling system so as to set the stator flux-linkages generated by the first and second rotor sections to be substantially zeroes. Thereafter, the permanent magnets do not substantially induce voltages on the stator windings even if the rotor is rotating during for example an internal fault of stator windings.

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Patent Owner(s)

Patent OwnerAddress
THE SWITCH DRIVE SYSTEMS OYLAPPEENRANTA LAPPEENRANTA SOUTHERN FINLAND

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kurronen, Panu Lappeenranta, FI 7 37
Puranen, Jussi Lappeenranta, FI 8 9
Silventoinen, Markus Lappeenranta, FI 1 1

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