Invention Grant
- Patent Title: High power-density, high back emf permanent magnet machine and method of making same
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Application No.: US12949925Application Date: 2010-11-19
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Publication No.: US09780716B2Publication Date: 2017-10-03
- Inventor: Ayman Mohamed Fawzi El-Refaie , Robert Dean King
- Applicant: Ayman Mohamed Fawzi El-Refaie , Robert Dean King
- Applicant Address: US NY Schenectady
- Assignee: GENERAL ELECTRIC COMPANY
- Current Assignee: GENERAL ELECTRIC COMPANY
- Current Assignee Address: US NY Schenectady
- Agency: Meagher Emanuel Laks Goldberg & Liao, LLP
- Main IPC: H02P27/04
- IPC: H02P27/04 ; H02P27/08 ; H02P25/024

Abstract:
An electric drive system includes a permanent magnet machine having a rotor and a stator and a power converter electrically coupled to the permanent magnet machine and configured to convert a DC link voltage to an AC output voltage to drive the permanent magnet machine. The power converter includes a plurality of silicon carbide switching devices having a voltage rating that exceeds a peak line-to-line back electromotive force of the permanent magnet machine at a maximum speed of the permanent magnet machine.
Public/Granted literature
- US20120126733A1 HIGH POWER-DENSITY, HIGH BACK EMF PERMANENT MAGNET MACHINE AND METHOD OF MAKING SAME Public/Granted day:2012-05-24
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