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Patent Agency Ranking
公开(公告)号：US09621014B2
公开(公告)日：2017-04-11
申请号：US14813654
申请日：2015-07-30
Applicant: McMaster University
Inventor： Yinye Yang , Nigel Schofield , Ali Emadi
IPC: H02P7/00 , H02K16/02 , H02K19/10 , H02K29/03 , H02P25/098 , H02P101/45
CPC classification number: H02K16/02 , H02K19/103 , H02K29/03 , H02P25/098 , H02P2101/45
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.
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公开(公告)号：US10312780B2
公开(公告)日：2019-06-04
申请号：US14918800
申请日：2015-10-21
Applicant: McMaster University
Inventor： Teng Guo , Nigel Schofield , Ali Emadi
Abstract: Various embodiments are described herein for a double-rotor switched reluctance machine with segmented rotors. In one example embodiment, the double-rotor switched reluctance machine comprises an interior rotor, an exterior rotor spaced from the interior rotor and concentrically disposed outside the interior rotor, and at least one stator disposed concentrically with the interior rotor and the exterior rotor. The interior rotor, the exterior rotor and the at least one stator are disposed within one machine set to provide an interior switched reluctance machine and an exterior switched reluctance machine. In the various embodiments described herein, at least one of the interior rotor and the exterior rotor comprises an array of magnetically isolated segments and filler segments. The interior switched reluctance machine and the exterior switched reluctance machine can operate as two motors, two generators, or a motor and a generator simultaneously.
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公开(公告)号：US20180287473A1
公开(公告)日：2018-10-04
申请号：US15938708
申请日：2018-03-28
Applicant: McMaster University
Inventor： Berker Bilgin , Rong Yang , Nigel Schofield , Ali Emadi
Abstract: A reluctance motor has salient teeth on both the stator and the rotor. The reluctance motor includes electrical coils that are usable to generate magnetic flux to drive rotation of the rotor. Concentrated coil windings are wound around each stator tooth. The electrical coils are arranged across all the stator teeth of the reluctance motor to enable the reluctance motor to be driven by alternating current. The electrical coils are arranged so that, when excited with alternating current, the number of magnetic half-poles is equal to the number of teeth on the rotor. The reluctance machine can operate using an inverter instead of an asymmetric bridge.
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公开(公告)号：US20170117784A1
公开(公告)日：2017-04-27
申请号：US14918800
申请日：2015-10-21
Applicant: McMaster University
Inventor： Teng Guo , Nigel Schofield , Ali Emadi
CPC classification number: H02K16/02 , H02K1/246 , H02K15/02 , H02K19/103 , H02K19/24
Abstract: Various embodiments are described herein for a double-rotor switched reluctance machine with segmented rotors. In one example embodiment, the double-rotor switched reluctance machine comprises an interior rotor, an exterior rotor spaced from the interior rotor and concentrically disposed outside the interior rotor, and at least one stator disposed concentrically with the interior rotor and the exterior rotor. The interior rotor, the exterior rotor and the at least one stator are disposed within one machine set to provide an interior switched reluctance machine and an exterior switched reluctance machine. In the various embodiments described herein, at least one of the interior rotor and the exterior rotor comprises an array of magnetically isolated segments and filler segments. The interior switched reluctance machine and the exterior switched reluctance machine can operate as two motors, two generators, or a motor and a generator simultaneously.
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5.发明申请公开(公告)号：US20160036366A1
公开(公告)日：2016-02-04
申请号：US14813654
申请日：2015-07-30
Applicant: McMaster University
Inventor： Yinye Yang , Nigel Schofield , Ali Emadi
CPC classification number: H02K16/02 , H02K19/103 , H02K29/03 , H02P25/098 , H02P2101/45
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.
Abstract translation: 双转子开关磁阻电机包括定子，第一转子和第二转子。 定子和第一转子作为第一电机工作，并且定子和第二转子作为第二电机工作。 每个电机具有在最大和最小瞬时扭矩之间周期性波动的输出扭矩分布。 双转子开关磁阻电机被构造成使得当第一和第二电机以公共电频率操作时，第一和第二最大瞬时转矩在时间上偏移，从而减小开关磁阻电机的总转矩波动。 另外或替代地，双转子开关磁阻电机被构造成使得第一和第二转子彼此径向偏移，以通过第一和第二电机的操作来减小施加在定子上的净径向力。
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