Invention Grant
- Patent Title: Three-phase synchronous machine having a permanent magnet rotor with an induction cage
- Patent Title (中): 具有带感应笼的永磁转子的三相同步电机
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Application No.: US10572008Application Date: 2003-09-11
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Publication No.: US07564158B2Publication Date: 2009-07-21
- Inventor: Gerhard Huth , Rolf Vollmer
- Applicant: Gerhard Huth , Rolf Vollmer
- Applicant Address: DE Munich
- Assignee: Siemens Aktiengesellschaft
- Current Assignee: Siemens Aktiengesellschaft
- Current Assignee Address: DE Munich
- Agent Henry M. Feiereisen; Ursula B. Day
- International Application: PCT/DE03/03020 WO 20030911
- International Announcement: WO2005/027321 WO 20050324
- Main IPC: H02K17/00
- IPC: H02K17/00
Abstract:
The aim of the invention is to achieve a high torque yield in synchronous machines excited by permanent magnets. Said aim is achieved by using subharmonic air gap fields. The rotor comprises an induction cage as well as permanent magnets. The number of winding holes of the stator is greater than q=0.5. The number of poles of the rotor is greater than the base number of poles of the air gap field produced by the windings.
Public/Granted literature
- US20070035193A1 Three-phase synchronous machine having a permanent magnet rotor with an induction cage Public/Granted day:2007-02-15
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