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公开(公告)号：US20210281205A1
公开(公告)日：2021-09-09
申请号：US17188178
申请日：2021-03-01
发明人： Takashi TAKAGI , Toshimitsu AIZAWA , Shen WANG
IPC分类号： H02P27/08 , H02M7/5387 , H02P21/14 , H02P21/22
摘要： A driving device of one embodiment includes a phase estimator and a voltage controller. The phase estimator estimates a phase of stator interlinkage magnetic flux of an electric motor based on a current flowing through the electric motor, a voltage command of a drive voltage applied to the electric motor, and a winding resistance value of the electric motor. The voltage controller acquires a first voltage vector component in a direction in which the stator interlinkage magnetic flux acts and a second voltage vector component in a direction which is orthogonal to the direction in which the stator interlinkage magnetic flux acts for the voltage command of the drive voltage, and sets the voltage command of the drive voltage based on the first voltage vector component and the second voltage vector component.
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公开(公告)号：US20170144567A1
公开(公告)日：2017-05-25
申请号：US15422027
申请日：2017-02-01
发明人： Takashi TAKAGI
CPC分类号： B60L15/08 , B60L11/1803 , B60L2210/44 , H02M1/44 , H02M7/48 , H02P5/74 , H02P27/085 , Y02T10/644 , Y02T10/645 , Y02T10/646 , Y02T10/7005 , Y02T10/7241
摘要： A power converting apparatus for vehicles according to an embodiment controls a plurality of AC motors for vehicle traveling set on a motor setting table. The power converting apparatus includes a plurality of inverter circuits and a plurality of controllers. The plurality of inverter circuits supply three-phase AC power to the AC motors. The plurality of controllers generate control signals for ON/OFF-controlling a plurality of switching elements of the inverter circuits and perform PWM control on the inverter circuits associated with the plurality of controllers among the plurality of inverter circuits. The plurality of controllers perform the PWM control on the associated inverter circuits according to control signals generated using carrier waves having phases different from one another. A phase difference between the carrier waves is based on the number of the plurality of AC motors set on the motor setting table.
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公开(公告)号：US20220190739A1
公开(公告)日：2022-06-16
申请号：US17476145
申请日：2021-09-15
发明人： Takashi TAKAGI , Keita NAKANISHI
IPC分类号： H02M7/5387 , H02M1/00 , H02M1/08
摘要： A power conversion apparatus includes a power conversion circuit including a semiconductor element in each of upper and lower arms between DC links, and being electrically connected to an AC load at an AC end. A voltage detector detects a voltage between the DC links. A current detector detects a current flowing in the AC end. A control unit generates a gate command based on a voltage value obtained by the voltage detector and a current value obtained by the current detector. A gate driver drives the semiconductor element based on the gate command, includes a gate current detector and a circuit to determine a drive state of the semiconductor element from the gate current, and outputs a value corresponding to the drive state to the control unit.
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公开(公告)号：US20240048079A1
公开(公告)日：2024-02-08
申请号：US18363795
申请日：2023-08-02
CPC分类号： H02P21/141 , H02P21/18
摘要： An electric motor drive apparatus includes an electric motor. A power conversion device, a controller, and a current detector. The controller calculates a phase of an armature flux linkage of the electric motor by using a flowing current detected by the current detector. The calculating a phase of an armature flux linkage of the electric motor includes calculating an armature flux linkage of the electric motor including an initial value of an armature flux linkage of the electric motor which is calculated from a rotational position of the electric motor estimated by using a motor flux of the electric motor measured in advance and the flowing current.
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公开(公告)号：US20200295687A1
公开(公告)日：2020-09-17
申请号：US16725000
申请日：2019-12-23
发明人： Takashi TAKAGI , Toshimitsu AIZAWA , Shen WANG
摘要： According to one embodiment, a driving device includes a voltage controller, a parameter setter, and a phase adjuster. The voltage controller causes an electric power converter to apply a drive voltage to the electric motor, the electric power converter converting input electric power to A/C electric power having desired voltage and frequency and supplying the converted electric power to an electric motor. The parameter setter sets at least one of a rotation speed of the electric motor and a parameter related to the rotation speed as speed information. The phase adjuster adjusts a phase of the drive voltage in such a manner that an index calculated based on a current flowing in the electric motor and the speed information set in the parameter setter becomes smaller.
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公开(公告)号：US20140345492A1
公开(公告)日：2014-11-27
申请号：US14456855
申请日：2014-08-11
CPC分类号： B60L9/32 , B60L3/003 , B60L11/1803 , B60L15/007 , B60L2200/26 , B60L2220/14 , B60L2220/44 , B60L2240/36 , B60L2260/28 , B61C3/00 , H02M7/003 , H02P27/06 , H05K7/1432 , H05K7/209 , Y02T10/644 , Y02T10/645 , Y02T10/646 , Y02T10/7005
摘要： Drive control equipment for a vehicle comprises: a plurality of power conversion devices respectively connected with a plurality of motors that convert DC power supplied from a DC power source to AC power and output this to said motors; a control device that controls the power conversion devices; a frame that accommodates said power conversion devices and the control device and having a ceiling wall facing below the vehicle floor; and a power unit having a cooler in which are installed a plurality of semiconductor elements constituting the power conversion devices; a first control board provided with a first connector connected with said semiconductor elements, arranged facing the cooler; and a second control board arranged in a direction orthogonal to said first control board and connected with a second connector connected with the first connector of said first control board.
摘要翻译： 用于车辆的驱动控制设备包括：多个电力转换装置，分别与多个电动机连接，所述多个电动机将从直流电源提供的直流电力转换为交流电力，并将其输出到所述电动机; 控制装置，控制电力转换装置; 容纳所述电力转换装置和所述控制装置并具有面向所述车辆底板下方的顶壁的框架; 以及具有冷却器的动力单元，其中安装有构成所述功率转换装置的多个半导体元件; 第一控制板，设置有与所述半导体元件连接的第一连接器，面向冷却器布置; 以及第二控制板，其布置在与所述第一控制板正交的方向上，并与与所述第一控制板的第一连接器连接的第二连接器连接。
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