公开(公告)号：US09762166B2

公开(公告)日：2017-09-12

申请号：US15248201

申请日：2016-08-26

Applicant: CONTINENTAL AUTOMOTIVE GMBH

Inventor： Martin Goetzenberger

IPC: H02P21/00 ,  H02P21/28

CPC classification number: H02P21/28

Abstract: A method for field-oriented control of a frequency converter for a three-phase motor includes the setting of a new position of the rotary field in the electric motor being performed by voltage pulses for the stator coils. An amplitude and the angle of the rotary field vector are specified by the duration of the voltage pulses for the respective coils and by their temporal offset. The duration and the offset of voltage pulses for the stator coils are the result of the calculation of manipulated variables in a digitally controlled process in a coordinate system fixed in respect of the rotor, depending on the prevailing angular rotation (theta) and the prevailing speed of rotation (omega) as well as on the prevailing current values, a predetermined torque and a predetermined speed of rotation.

公开(公告)号：US20160233816A1

公开(公告)日：2016-08-11

申请号：US15017337

申请日：2016-02-05

Applicant: LG ELECTRONICS INC.

Inventor： Jungmoon JE ,  Minho JANG ,  Hyunjin KIM

IPC: H02P29/024 ,  D06F37/30 ,  H02P6/08 ,  H02P27/06 ,  H02P6/28

CPC classification number: H02P29/0241 ,  D06F37/304 ,  H02P6/08 ,  H02P6/28 ,  H02P21/28 ,  H02P27/06

Abstract: The present disclosure relates to a motor driving device and a laundry treatment apparatus. An inverter is configured to convert a DC voltage of DC terminals into an AC voltage according to a switching operation and to output the AC voltage to a motor. A DC terminal voltage detector is configured to detect the voltage of the DC terminals, and an output current detector is configured to detect an output current flowing through the motor. A controller is configured to control the inverter based on the detected output current. The controller controls the motor to operate based on a flux current command value from among the flux current command values and a torque current command value for driving the motor in an overvoltage protection mode when the detected DC terminal voltage is higher than a first predetermined value and power is supplied from the motor to the DC terminals. Abrupt DC terminal voltage increase may be prevented.

Abstract translation: 本发明涉及电动机驱动装置和衣物处理装置。 逆变器被配置为根据开关操作将DC端子的DC电压转换成AC电压并将AC电压输出到电动机。 DC端子电压检测器被配置为检测DC端子的电压，并且输出电流检测器被配置为检测流过电动机的输出电流。 控制器被配置为基于检测到的输出电流来控制逆变器。 控制器根据检测到的直流端子电压高于第一预定值的过电压保护模式中的通量电流指令值中的磁通电流指令值和驱动电动机的转矩电流指令值，控制电动机的动作， 电源从电机供电到直流端子。 可以防止突然的直流端子电压增加。

公开(公告)号：US20110118940A1

公开(公告)日：2011-05-19

申请号：US12946187

申请日：2010-11-15

Applicant: Yuji KARIATSUMARI ,  Hayato KOMATSU ,  Terutaka TAMAIZUMI ,  Yoshihiro ITATSU

Inventor： Yuji KARIATSUMARI ,  Hayato KOMATSU ,  Terutaka TAMAIZUMI ,  Yoshihiro ITATSU

IPC: B62D6/00 ,  H02P21/00

CPC classification number: H02P21/0046 ,  B62D5/046 ,  H02P21/04 ,  H02P21/28

Abstract: A motor is driven by the γ-axis current of a γδ coordinate system that is an imaginary rotating coordinate system. A command current value preparation unit sets the γ-axis command current value based on the command steering torque and the detected steering torque. The command current value preparation unit includes a command current increase/decrease amount calculation unit and an addition unit. The command current increase/decrease amount calculation unit calculates the current increase/decrease amount for the command current value based on the sign of the command steering torque and the deviation of the detected steering torque from the command steering torque. The current increase/decrease amount calculated by the command current increase/decrease amount calculation unit is added to the immediately preceding value of the command current value by the addition unit. Thus, the command current value in the present calculation cycle is calculated.

Abstract translation: 电动机由作为虚拟旋转坐标系的γδ坐标系的γ轴电流驱动。 指令电流值准备部基于指示转向转矩和检测到的转向转矩来设定γ轴指令电流值。 指令电流值准备单元包括指令电流增减量计算单元和加法单元。 指令电流增减量计算单元基于指示转向转矩的符号和检测到的转向转矩与指示转向转矩的偏差来计算指令电流值的当前增减量。 由指令电流上升/下降量计算单元计算出的当前增加/减少量通过加法单元加到指令当前值的紧前面的值。 因此，计算当前计算周期中的指令当前值。

公开(公告)号：US09685898B2

公开(公告)日：2017-06-20

申请号：US14321356

申请日：2014-07-01

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Kun Wei ,  HaiHui Lu ,  Andrew Jaap ,  David Messersmith ,  Randall Langer ,  Ping Lee

IPC: H02P1/04 ,  H02P1/16 ,  H02P27/04 ,  H02P1/26

CPC classification number: H02P27/047 ,  H02P1/04 ,  H02P1/16 ,  H02P1/26 ,  H02P1/40 ,  H02P21/28 ,  H02P21/34 ,  H02P27/16

Abstract: An apparatus includes a switch module that selectively turns on a switch to connect an input power conductor connected to a voltage source to a motor in a sequence. The switch for each phase is turned on for a portion of a cycle of a fundamental frequency of the voltage source. A source phase module determines a phase of the AC voltage source, a back-EMF phase module determines a phase of a back-EMF of the motor, and a torque module determines when a phase difference between the phase of the AC voltage source and the phase of the back-EMF is within a phase range indicative of a positive motor torque. A pulse module enables the switches in response to the phase difference having a phase within the phase range and disables the switches in response to the phase difference having a phase not in the phase range.

公开(公告)号：US09294029B2

公开(公告)日：2016-03-22

申请号：US13401081

申请日：2012-02-21

Applicant: Matti Veijanen

Inventor： Matti Veijanen

IPC: H02P6/06 ,  H02P1/00 ,  G05B11/36 ,  H02P21/13 ,  H02P21/00 ,  H02P21/14

CPC classification number: H02P21/13 ,  H02P21/141 ,  H02P21/18 ,  H02P21/28

Abstract: A method of estimating a rotor angle of a synchronous reluctance motor, which includes a stator and a rotor. First, a stator flux and a stator current are determined. Two orthogonal stator flux components in a stator reference frame are calculated from the stator flux. Two orthogonal stator current components in the stator reference frame are calculated from the stator current. A rotor orientation vector is then calculated using a known rotor direct or quadrature axis inductance component, the stator flux components, and the stator current components. The rotor orientation is estimated on the basis of the rotor orientation vector.

Abstract translation: 一种估计包括定子和转子的同步磁阻电机的转子角度的方法。 首先，确定定子磁通和定子电流。 从定子磁通量计算定子参考系中的两个正交定子磁通分量。 从定子电流计算定子参考系中的两个正交定子电流分量。 然后使用已知的转子直接或正交轴电感分量，定子磁通分量和定子电流分量来计算转子取向向量。 基于转子方向矢量来估计转子取向。

公开(公告)号：US08975842B2

公开(公告)日：2015-03-10

申请号：US13923878

申请日：2013-06-21

Applicant: Hamilton Sundstrand Corporation

Inventor： Vladimir Blasko

IPC: H02P21/00 ,  H02P21/06

CPC classification number: H02P21/06 ,  H02P21/00 ,  H02P21/0003 ,  H02P21/28

Abstract: A three-phase permanent magnet motor is controlled by generating two-phase control signals. A rotation speed value is generated representing a rotation speed of the permanent magnet motor based on a q-current reference value and a q-current feedback value, the q-current reference value and the q-current feedback value corresponding to a q-phase winding. A d-phase voltage change value is generated based on a d-current reference value and a d-current feedback value, the d-current reference value and the d-current feedback value corresponding to the d-phase winding. A first d-phase voltage value is generated based on the rotation speed value, the d-phase voltage change value, the d-current reference value and the q-current reference value. A first q-phase voltage value is generated based on the rotation speed value, the q-current reference value and the d-current reference value.

Abstract translation: 通过产生两相控制信号来控制三相永磁电动机。 基于q电流参考值和q电流反馈值产生表示永磁电动机的转速的转速值，q电流参考值和对应于q相的q电流反馈值 绕组。 基于d电流基准值和d电流反馈值，与d相绕组对应的d电流基准值和d电流反馈值，生成d相电压变化值。 基于转速值，d相电压变化值，d电流基准值和q电流基准值生成第一d相电压值。 基于转速值，q电流参考值和d电流参考值产生第一q相电压值。

公开(公告)号：US08896249B2

公开(公告)日：2014-11-25

申请号：US13560494

申请日：2012-07-27

Applicant: Shu Yu Cao ,  Bing Li ,  Anshuman Tripathi

Inventor： Shu Yu Cao ,  Bing Li ,  Anshuman Tripathi

IPC: H02P6/18

CPC classification number: H02P21/28 ,  H02P21/18

Abstract: A position sensorless control methodology for an electrical machine is provided. In particular, one aspect provides a method for position sensorless operation of an electrical machine using direct position error computation from stator flux observation results and stator current measurement.

Abstract translation: 提供了一种用于电机的无位置传感器控制方法。 特别地，一方面提供了一种使用来自定子通量观测结果和定子电流测量的直接位置误差计算的电机位置无传感器操作的方法。

公开(公告)号：US07190601B2

公开(公告)日：2007-03-13

申请号：US10925967

申请日：2004-08-26

Applicant: Julius Luukko ,  Hannu Saren

Inventor： Julius Luukko ,  Hannu Saren

IPC: H02M7/5387

CPC classification number: H02M5/4585 ,  H02M2007/53876 ,  H02P21/22 ,  H02P21/28 ,  H02P27/08

Abstract: A space-vector pulse-width modulation method for a frequency converter provided with a voltage intermediate circuit, said frequency converter comprising a mains bridge (10) to be connected to an alternating current source (UU, UV, UW), a direct-voltage intermediate circuit and a controlled load bridge (11) for supplying a variable-frequency alternating voltage (US, UR, UT) to a load (12), and in which method the modulator performing the modulation is given a reference. The load bridge modulator is given a reference consisting of the references for the flux linkage changes produced by the voltage vectors, the flux linkage change is calculated on the basis of measured intermediate-circuit voltage, and the currently active voltage vector is kept turned on until the reference value is reached.

Abstract translation: 一种用于具有电压中间电路的变频器的空间矢量脉宽调制方法，所述变频器包括要连接到交流电源（U U U，U）的电源桥（10） 直流电压中间电路和用于提供可变频率交流电压（U S）的受控负载桥（11） （12），并且在该方法中，执行调制的调制器被给予参考。 负载桥式调制器给出了由电压矢量产生的磁通变化参考的参考，基于测量的中间电路电压计算磁链变化，当前有效电压矢量保持开启，直到 达到参考值。

公开(公告)号：US20230361704A1

公开(公告)日：2023-11-09

申请号：US18143841

申请日：2023-05-05

Applicant: Goodrich Control Systems

Inventor： Andrei Dinu

IPC: H02P21/28 ,  H02P21/00

CPC classification number: H02P21/28 ,  H02P21/0003 ,  H02K2213/03 ,  H02P2205/03 ,  H02P2207/05

Abstract: There is provided herein a method of advancing phase of a DQ reference frame in a Field Oriented Control, FOC, algorithm for a permanent magnet motor. The method comprises: monitoring a component of the stator voltage demand of the permanent magnet motor, when the component of the stator voltage demand surpasses a threshold, calculating a phase advance angle, θadv, based on a gain multiplied by the difference between the component of stator voltage demand and the threshold; and advancing phase of the DQ reference frame in the FOC algorithm based on the calculated phase advance angle, up to a maximum phase advance angle when motor speed is positive, or down to a minimum phase angle when motor speed is negative.

公开(公告)号：US09647583B2

公开(公告)日：2017-05-09

申请号：US14900205

申请日：2013-06-28

Applicant: Nissan Motor Co., Ltd. ,  Wisconsin Alumni Research Foundation

Inventor： Takashi Fukushige ,  Chen-yen Yu ,  Robert D. Lorenz

IPC: H02P21/00 ,  H02P6/08 ,  H02P21/28

CPC classification number: H02P6/08 ,  H02P21/0003 ,  H02P21/0089 ,  H02P21/12 ,  H02P21/13 ,  H02P21/141 ,  H02P21/28

Abstract: A variable magnetization machine controller has a current command module, a magnetization module and a reducing current module. The current command module computes a vector current command in a dq axis based on a torque command. The magnetization module applies a magnetization control pulse to a d-axis current of the vector current command. Thus, the reducing current module applies a reducing current to a q-axis current of the vector current command based on the torque command and one of an estimated torque of the variable magnetization machine and a measured torque of the variable magnetization machine.