发明名称 |
Torque ripple and radial force reduction in double-rotor switched reluctance machines |
摘要 |
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. |
申请公布号 |
US9621014(B2) |
申请公布日期 |
2017.04.11 |
申请号 |
US201514813654 |
申请日期 |
2015.07.30 |
申请人 |
McMaster University |
发明人 |
Yang Yinye;Schofield Nigel;Emadi Ali |
分类号 |
H02P7/00;H02K16/02;H02K19/10;H02K29/03;H02P25/098;H02P101/45 |
主分类号 |
H02P7/00 |
代理机构 |
Bereskin & Parr LLP/S.E.N.C.R.L., s.r.l. |
代理人 |
Bereskin & Parr LLP/S.E.N.C.R.L., s.r.l. |
主权项 |
1. A double-rotor switched reluctance machine comprising:
a stator, a first rotor, and a second rotor; the stator and the first rotor configured to operate as a first electric machine having an output torque profile that, for a first average output torque, fluctuates periodically between a first maximum instantaneous torque and a first minimum instantaneous torque as the first rotor rotates relative to the stator; the stator and the second rotor configured to operate as a second electric machine having an output torque profile that, for a second average output torque, fluctuates periodically between a second maximum instantaneous torque and a second minimum instantaneous torque as the second rotor rotates relative to the stator; the double-rotor switched reluctance machine 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 an overall torque ripple of the double-rotor switched reluctance machine. |
地址 |
Hamilton CA |