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公开(公告)号：US20230261604A1
公开(公告)日：2023-08-17
申请号：US18010575
申请日：2021-03-26
发明人： Subrata SAHA , Hiroki IWAI , Takashi KOSAKA , Hiroaki MATSUMORI
IPC分类号： H02P27/08 , H02P29/028
CPC分类号： H02P27/085 , H02P29/028
摘要： In a first control state, it is determined which one of a first failure pattern (FP1) and a second failure pattern (FP2) is a failure pattern (FT), and in a second control state, it is determined which one of a first lower-stage-side failure pattern (LF1) and a second lower-stage-side failure pattern (LF2) is a lower-stage-side failure pattern (LF), and it is determined which one of a set of upper-stage-side arms of a first inverter (11), a set of lower-stage-side arms of the first inverter (12), a set of upper-stage-side arms of a second inverter (12), and a set of lower-stage-side arms of the second inverter (12) is failure-side arms, based on a result of the determination in the first control state and a result of the determination in the second control state.
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公开(公告)号：US20230028358A1
公开(公告)日：2023-01-26
申请号：US17782713
申请日：2020-09-29
发明人： Subrata SAHA , Hiroki IWAI , Takashi KOSAKA , Hiroak MATSUMORI , Naoto SAITO , Yoshinobu ITO , Isao FUJIWARA
IPC分类号： H02P27/08 , H02K11/33 , H02M7/5395 , H02P6/08
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：US20230006594A1
公开(公告)日：2023-01-05
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：US20230028189A1
公开(公告)日：2023-01-26
申请号：US17956019
申请日：2022-09-29
摘要： A rotary electric machine includes a rotor, and a stator facing the rotor with a predetermined gap interposed between the rotor and stator. The stator has a stator core formed in a substantially circular annular shape and provided with an armature slot and a field slot alternately arranged in a circumferential direction, an armature winding housed in the armature slot, and a field winding and a first field magnet housed in the field slot. The armature winding generates a rotating magnetic field to rotate the rotor by being supplied with an alternating current armature current. The field winding generates a field flux by being supplied with a direct current field current. The first field magnet changes a magnetic force by the field flux.
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公开(公告)号：US20190058381A1
公开(公告)日：2019-02-21
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：US20170250594A1
公开(公告)日：2017-08-31
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：US20200036251A1
公开(公告)日：2020-01-30
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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