Invention Grant
- Patent Title: Torque ripple and radial force reduction in double-rotor switched reluctance machines
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Application No.: US14813654Application Date: 2015-07-30
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Publication No.: US09621014B2Publication Date: 2017-04-11
- Inventor: Yinye Yang , Nigel Schofield , Ali Emadi
- Applicant: McMaster University
- Applicant Address: CA Hamilton
- Assignee: McMaster University
- Current Assignee: McMaster University
- Current Assignee Address: CA Hamilton
- Agency: Bereskin & Parr LLP/S.E.N.C.R.L., s.r.l.
- Main IPC: H02P7/00
- IPC: H02P7/00 ; H02K16/02 ; H02K19/10 ; H02K29/03 ; H02P25/098 ; H02P101/45

Abstract:
A double-rotor switched reluctance machine includes a stator, a first rotor, and a second rotor. The stator and the first rotor operate as a first electric machine and the stator and the second rotor operate as a second electric machine. Each electric machine has an output torque profile that fluctuates periodically between a maximum and a minimum instantaneous torque. The double-rotor switched reluctance machine is configured so that when the first and second electric machines are operated at a common electrical frequency, the first and second maximum instantaneous torques are temporally offset, thereby reducing the overall torque ripple of the switched reluctance machine. Additionally, or alternatively, a double-rotor switched reluctance machine is configured so that the first and second rotors are radially offset from each other to reduce a net radial force imposed on the stator by the operation of the first and second electric machines.
Public/Granted literature
- US20160036366A1 TORQUE RIPPLE AND RADIAL FORCE REDUCTION IN DOUBLE-ROTOR SWITCHED RELUCTANCE MACHINES Public/Granted day:2016-02-04
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