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公开(公告)号：US11979104B2
公开(公告)日：2024-05-07
申请号：US17784817
申请日：2020-09-29
发明人： Subrata Saha , Hiroki Iwai , Takashi Kosaka , Hiroaki Matsumori
摘要： A rotary electric machine control apparatus (1) suitably controls two inverters (10) connected to associated ends of open windings (8). The rotary electric machine control apparatus (1) performs target control involving: controlling a first one of the inverters (10), which is selected from a first inverter (11) and a second inverter (12), by rectangular wave control; and controlling a second one of the inverters (10) by special pulse width modulation control that is one type of pulse width modulation control. The special pulse width modulation control is a control method to produce a switching pattern (Su2+) that is based on a difference between a switching pattern resulting from the pulse width modulation control and a switching pattern (Su1+) resulting from the rectangular wave control when a target voltage is to be generated in the open windings (8).
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公开(公告)号：US11909342B2
公开(公告)日：2024-02-20
申请号：US17782713
申请日：2020-09-29
发明人： Subrata Saha , Hiroki Iwai , Takashi Kosaka , Hiroaki Matsumori , Naoto Saito , Yoshinobu Ito , Isao Fujiwara
IPC分类号： H02P27/08 , H02P6/08 , H02M7/5395 , H02K11/33
CPC分类号： H02P27/08 , H02K11/33 , H02M7/5395 , H02P6/08 , H02P2209/00
摘要： Two inverters (10) provided at respective both ends of open-end windings (8) are appropriately controlled. As control regions (R) of a rotating electrical machine (80), a first speed region (VR1) and a second speed region (VR2) in which the rotational speed of the rotating electrical machine (80) is higher than in the first speed region (VR1) for the same torque are set, and in the second speed region (VR2), a rotating electrical machine control device (1) controls both inverters (10), a first inverter (11) and a second inverter (12), by mixed pulse width modulation control in which control is performed such that a plurality of pulses with different patterns are outputted during a first period (T1) which is a half cycle of electrical angle, and an inactive state continues during a second period (T2) which is the other half cycle.
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公开(公告)号：US10277100B2
公开(公告)日：2019-04-30
申请号：US15761481
申请日：2016-08-29
发明人： Yoshinari Asano , Takashi Kosaka
摘要： A stator core and a rotor core are provided. The stator core includes field windings receiving a direct current, and armature windings receiving an alternating current. Permanent magnets, each housed in one of the slots together with ones of the field windings, and in contact with the ones of the field windings, are provided. The field windings are provided on both of inner and outer circumferential sides of the permanent magnets.
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公开(公告)号：US10693334B2
公开(公告)日：2020-06-23
申请号：US16604054
申请日：2018-04-12
摘要： A stator core including field slots housing field windings and armature slots housing armature windings is provided. Permanent magnets are housed in the respective armature slots. The armature windings are configured by a first winding and at least one second winding. The field winding passes over the permanent magnet. The second windings each have a part embedded between a coil end of the field winding and teeth around which the field winding is around.
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公开(公告)号：US10348174B2
公开(公告)日：2019-07-09
申请号：US15500014
申请日：2015-06-19
发明人： Yoshinari Asano , Takashi Kosaka
摘要： An electric motor includes a rotor and a stator including a stator core, a plurality of armature windings, a plurality of field windings, and a plurality of bonded magnets. The stator core has a plurality of teeth alternately defining field slots and armature slots along a circumferential direction, and a stator yoke magnetically coupling the plurality of teeth opposite the rotor. Each armature winding is wound around two of the teeth sandwiched between an adjacent pair of the armature slots. Each field winding is wound around two of the teeth sandwiched between an adjacent pair of the field slots. The magnets are individually located in the field slots while opposing the field windings in the radial direction. Each adjacent pair of the magnets along the circumferential direction respectively has an adjacent pair of pole surfaces, with the adjacent pair of pole surfaces having a same polarity.
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公开(公告)号：US11201529B2
公开(公告)日：2021-12-14
申请号：US16470318
申请日：2017-12-20
摘要： A stator core including field slots housing field windings and armature slots housing armature windings is provided. Permanent magnets are housed in the respective armature slots. Field windings face to the permanent magnets directly or via the stator core on the outer and inner circumferential sides. A coil end of one of the armature windings straddles the predetermined one of the field slots and passes over the axial end face of each of the permanent magnets in the corresponding one of the field slots over which the coil end straddles.
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