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公开(公告)号：US11146199B2
公开(公告)日：2021-10-12
申请号：US16414807
申请日：2019-05-17
发明人： Hengchun Mao
摘要： A motor control method includes providing a motor comprising a plurality of windings, a rotor and a stator magnetically coupled to the rotor, coupling a plurality of power converters to the plurality of windings, configuring the plurality of power converters to operate in a first interleaving mode, controlling the plurality of power converters to dynamically adjust the number of poles of the motor and after the step of controlling the plurality of power converters to dynamically adjust the number of poles of the motor, configuring the plurality of power converters to leave the first interleaving mode and enter into a second interleaving mode.
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公开(公告)号：US20190068107A1
公开(公告)日：2019-02-28
申请号：US16116005
申请日：2018-08-29
发明人： Hengchun Mao , Xuezhong Jia
IPC分类号： H02P29/028 , H02P25/20
摘要： A motor control method comprises providing a machine comprising a plurality of windings, a rotor and a stator magnetically coupled to the rotor, coupling a plurality of power converters to the plurality of windings, configuring the plurality of power converters so as to adjust the number of poles of the machine in a low-stress operating mode according to a plurality of operating parameters and after a fault occurs in the machine, configuring the plurality of power converters such that the machine enters a fault tolerant operating mode.
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公开(公告)号：US11075598B2
公开(公告)日：2021-07-27
申请号：US16103003
申请日：2018-08-14
发明人： Hengchun Mao , Xuezhong Jia
IPC分类号： H02P25/18 , H02K1/16 , H02K3/48 , H02K15/06 , H02K3/28 , H02K15/02 , H02K3/12 , H02K11/33 , H02K17/14 , H02P25/22 , H02K17/30 , H02P25/024 , H02P25/062 , H02P25/064 , H02P25/092 , H02P25/10
摘要： A device comprises a rotor magnetically coupled to a stator, a plurality of slots for accommodating a plurality of conductors, wherein the plurality of slots is evenly spaced, and each slot is configured to accommodate at least one conductor of the plurality of conductors, and wherein each conductor has a first end and a second end, and wherein the second end is configured to be coupled to a power converter and a plurality of connection apparatuses connected to first ends of the plurality of conductors.
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公开(公告)号：US20190058431A1
公开(公告)日：2019-02-21
申请号：US16103003
申请日：2018-08-14
发明人： Hengchun Mao , Xuezhong Jia
IPC分类号： H02P25/062 , H02P25/024 , H02P25/064 , H02P25/092 , H02P25/10
摘要： A device comprises a rotor magnetically coupled to a stator, a plurality of slots for accommodating a plurality of conductors, wherein the plurality of slots is evenly spaced, and each slot is configured to accommodate at least one conductor of the plurality of conductors, and wherein each conductor has a first end and a second end, and wherein the second end is configured to be coupled to a power converter and a plurality of connection apparatuses connected to first ends of the plurality of conductors.
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公开(公告)号：US20190058430A1
公开(公告)日：2019-02-21
申请号：US16102949
申请日：2018-08-14
发明人： Hengchun Mao , Xuezhong Jia
IPC分类号： H02P25/062 , H02P25/092 , H02P25/064 , H02P25/024
摘要： A motor system comprises a device having a plurality of conductors coupled to a plurality of isolated connection bars, wherein the plurality of conductors is divided symmetrically into a plurality of conductor groups, and all conductors in a conductor group are connected to a connection bar, a first power converter group connected between a first power source and a first conductor group, a second power converter group connected between a second power source and a second conductor group, wherein the first group of conductors and the second group of conductors are configured such that a charge balance between the first power source and a second power source is achieved and a rotor magnetically coupled to a stator.
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6.发明授权公开(公告)号：US10566922B2
公开(公告)日：2020-02-18
申请号：US15706718
申请日：2017-09-17
发明人： Hengchun Mao , Xuezhong Jia
摘要： A device has a plurality of power converter groups and a control system. A power converter group has a group of power converters and is coupled between an input voltage source and a group of windings of a motor generator. The control system is configured to control currents of the windings such that the number of poles of and the number of phases in a pair of poles of the motor/generator are dynamically adjusted, and the number of poles and the strength of a magnetic field of the motor generator are controlled to reduce a power loss. The motor/generator has an air gap and a stator with a plurality of slots, where the windings are installed in. The windings are configured such that the number of poles and the number of phases in a pair of poles of the motor/generator can be dynamically adjusted.
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公开(公告)号：US20190068103A1
公开(公告)日：2019-02-28
申请号：US16115862
申请日：2018-08-29
发明人： Hengchun Mao , Xuezhong Jia
IPC分类号： H02P25/20
摘要： A motor control method comprises detecting operating parameters of a motor system comprising a plurality of windings, a rotor, a stator magnetically coupled to the rotor and a plurality of power converters connected to the plurality of windings, determining, by a controller, a suitable pole number and a preliminary set of operating variables based upon the operating parameters, reducing operating stresses of the motor system gradually and after reducing the operating stresses, configuring the plurality of power converters so as to adjust the number of poles of the motor system according to the suitable pole number.
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公开(公告)号：US20190058364A1
公开(公告)日：2019-02-21
申请号：US16102966
申请日：2018-08-14
发明人： Hengchun Mao , Xuezhong Jia
摘要： A system comprises a stator magnetically coupled to a rotor and a plurality of conductor assemblies distributed evenly along a perimeter of the device, wherein each conductor assembly is evenly distributed into at least two branches of conductors, and wherein each branch comprising a plurality of conductors, all the branches form a plurality of windings, wherein a winding comprises a positive segment and a negative segment, and wherein each segment has a plurality of branches, and wherein one segment is in more than two conductor assemblies and the plurality of windings is symmetrically divided into a plurality of groups, wherein each group of windings forms a balanced multi-phase system and is connected to a connection bar, and wherein at least two connection bars are isolated from each other.
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9.发明授权公开(公告)号：US11689136B2
公开(公告)日：2023-06-27
申请号：US16732768
申请日：2020-01-02
发明人： Hengchun Mao , Xuezhong Jia
摘要： A method includes adjusting currents of a plurality of windings of a motor through a plurality of power converters coupled to the plurality of windings so that the number of poles and the number of phases of the motor are dynamically adjustable, and injecting a plurality of high-order harmonic currents into the plurality of windings of the motor through controlling the plurality of power converters to improve a performance index of the motor.
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公开(公告)号：US11031894B2
公开(公告)日：2021-06-08
申请号：US16102949
申请日：2018-08-14
发明人： Hengchun Mao , Xuezhong Jia
IPC分类号： H02P25/18 , H02K1/16 , H02K3/48 , H02K15/06 , H02K3/28 , H02K15/02 , H02K3/12 , H02K11/33 , H02K17/14 , H02P25/22 , H02K17/30 , H02P25/024 , H02P25/062 , H02P25/064 , H02P25/092 , H02P25/10
摘要： A motor system comprises a device having a plurality of conductors coupled to a plurality of isolated connection bars, wherein the plurality of conductors is divided symmetrically into a plurality of conductor groups, and all conductors in a conductor group are connected to a connection bar, a first power converter group connected between a first power source and a first conductor group, a second power converter group connected between a second power source and a second conductor group, wherein the first group of conductors and the second group of conductors are configured such that a charge balance between the first power source and a second power source is achieved and a rotor magnetically coupled to a stator.
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