公开(公告)号：US20240313682A1

公开(公告)日：2024-09-19

申请号：US18369405

申请日：2023-09-18

申请人： HYUNDAI MOTOR COMPANY ,  KIA CORPORATION

发明人： Sung Do Kim ,  Joo Yeon Kim ,  Min Su Kang ,  Chang Seok You

IPC分类号： H02P21/26 ,  H02P21/18 ,  H02P21/22 ,  H02P27/08

CPC分类号： H02P21/26 ,  H02P21/18 ,  H02P21/22 ,  H02P27/085

摘要： A motor driving apparatus includes a motor an inverter driving the motor based on a switching signal, and a controller. The controller determines a current position estimated value of the motor by applying a zero-voltage vector pulse to the switching signal when entering the driving control of the motor, determines whether the motor is in a stop state according to an amount of change in the current position estimated value, and performs a pulse width modulation control by adjusting a duty ratio of the switching signal when the motor is determined to be in the stop state.

公开(公告)号：US11949353B2

公开(公告)日：2024-04-02

申请号：US17801013

申请日：2021-02-19

申请人： SANDEN CORPORATION

发明人： Yushi Araki ,  Tatsuki Kashihara

IPC分类号： H02P21/05 ,  H02P21/14 ,  H02P21/22 ,  H02P21/26 ,  H02P25/024 ,  H02P27/08

CPC分类号： H02P21/05 ,  H02P21/14 ,  H02P21/22 ,  H02P21/26 ,  H02P25/024 ,  H02P27/085

摘要： There is provided a motor control device which enables torque ripple suppressing control high in followability by executing direct voltage control. A motor control device includes a voltage command calculation unit 15 which calculates a d-axis voltage command value Vdref and a q-axis voltage command value Vqref from a d-axis current command value id* and a q-axis current command value iq* of a motor 6, a feed forward command value calculation unit 23 which calculates a qi-axis voltage feed forward command value Vqff* for generating a q-axis current ripple on the basis of spatial harmonic parameters and the frequency characteristics of a motor winding, and a subtraction unit 10 which subtracts the q-axis voltage feed forward command value Vqff* calculated by the feed forward command value calculation unit 23 from the q-axis voltage command value Vqref calculated by the voltage command calculation unit 15.

公开(公告)号：US20240039445A1

公开(公告)日：2024-02-01

申请号：US18256935

申请日：2020-12-16

申请人： GKN AUTOMOTIVE LTD.

发明人： Tobias Gemassmer ,  Tobias Egbers ,  Nico Maurin

IPC分类号： H02P21/26 ,  H02P27/08 ,  H02P21/22

CPC分类号： H02P21/26 ,  H02P27/08 ,  H02P21/22

摘要： A drive arrangement comprising an electric motor can be operated. The drive arrangement comprises the electric motor, an electrical circuit for operating the electric motor, and a control device for actuating the electrical circuit; wherein the electric motor has at least one stator comprising at least three coils and a rotor comprising at least two magnetic poles; wherein the electrical circuit has at least a first potential connection and a second potential connection, which can be connected to different potentials of a DC voltage source; wherein the electrical circuit comprises three half-bridges between the potential connections, wherein each coil is electrically conductively connected to each half-bridge via a respective first connection and to the other coils via a respective second connection.

公开(公告)号：US11689132B2

公开(公告)日：2023-06-27

申请号：US17686391

申请日：2022-03-03

申请人： Zhongshan Broad-Ocean Motor Co., Ltd.

发明人： Ning Liu ,  Wei Guo ,  Yan Yang

IPC分类号： H02P27/08 ,  H02P21/26 ,  H02P21/22 ,  H02P25/024 ,  H02P21/00 ,  H02M7/5387

CPC分类号： H02P21/26 ,  H02P21/0003 ,  H02P21/0089 ,  H02P21/22 ,  H02P25/024 ,  H02P27/08 ,  H02M7/53871 ,  H02P2207/05

摘要： A parameterless and position-sensorless MTPA control of a permanent magnet synchronous motor including: using three rotating reference frames having different observation angles to parse the current vector; using a target current value and a preset current-rotor angle y that is between the current vector and the qr-axis of the (dr, qr) rotor reference frame to obtain the angles between the current vector, the voltage vector, and the rotor position; obtaining the target voltage value and the target voltage angle by using the obtained angles to obtain the target phase voltage values for regulation. The method is simple in controlling the motor, improves the control efficiency and reliability, and improves the control accuracy.

公开(公告)号：US20180287537A1

公开(公告)日：2018-10-04

申请号：US15689927

申请日：2017-08-29

申请人： Delta Electronics, Inc.

发明人： Chih-Hung HSIAO ,  Yu-Wei LEE ,  Wei-Shuo TSENG

IPC分类号： H02P21/22 ,  H02P21/18 ,  H02P25/03 ,  H02P27/08

CPC分类号： H02P21/22 ,  H02P21/18 ,  H02P21/26 ,  H02P25/03 ,  H02P27/085 ,  H02P2207/05

摘要： A motor system with a current sensorless control includes a motor, a drive module, and a motor control module. The motor control module controls the motor to rotate through the drive module. The motor control module includes a command generation module, a command conversion module, and an angle generation module. The command generation module generates speed information and transmits the speed information to the angle generation module, and the command generation module generates a voltage command and transmits the voltage command to the command conversion module. The angle generation module generates an electrical angle. The command conversion module converts the voltage command and the electrical angle into a control signal. The motor control module adjusts a phase of a motor input voltage to meet a phase of a motor input current according to the control signal.

公开(公告)号：US20180019693A1

公开(公告)日：2018-01-18

申请号：US15647597

申请日：2017-07-12

申请人： Konica Minolta, Inc.

发明人： Daichi SUZUKI ,  Yuta TACHIBANA ,  Hiroyuki YOSHIKAWA ,  Yasuhiro KOIDE

IPC分类号： H02P21/14 ,  G01K7/16 ,  H02K17/14 ,  H02K1/27 ,  H02K19/32 ,  H02K19/12

CPC分类号： H02P21/26 ,  G01K7/16 ,  G03G21/16 ,  H02K1/2753 ,  H02K1/2786 ,  H02K17/14 ,  H02K19/12 ,  H02K19/32 ,  H02P6/17 ,  H02P21/141 ,  H02P21/18 ,  H02P25/022 ,  H02P29/64 ,  H02P29/662

摘要： A controller for a permanent magnet synchronous motor includes an estimating portion configured to determine an estimated value of a rotational speed of the rotor and an estimated value of a position of magnetic poles of the rotor based on a value of the current detected by the current detector and a parameter value indicating an interlinkage magnetic flux caused by the permanent magnet across the winding; a control unit configured to control the drive portion to cause the rotating magnetic field based on the estimated value of the rotational speed and the estimated value of the position of the magnetic poles; and a correction portion configured to correct the parameter value indicating the interlinkage magnetic flux based on correction information, the correction information being determined based on a temperature of the winding and a relationship between the temperature of the winding and a temperature of the permanent magnet.

公开(公告)号：US09806652B2

公开(公告)日：2017-10-31

申请号：US15164152

申请日：2016-05-25

申请人： LSIS CO., LTD.

发明人： Joo-Young Moon ,  Hak-Jun Lee ,  Anno Yoo

IPC分类号： H02P21/00 ,  H02P23/00 ,  H02P21/22 ,  H02P21/26 ,  H02P27/08

CPC分类号： H02P21/0089 ,  H02P21/00 ,  H02P21/22 ,  H02P21/26 ,  H02P23/0086 ,  H02P27/08

摘要： In some embodiments, a system of controlling an induction electric motor, includes a command voltage output unit for generating a command voltage for operating an inverter according to a command speed and outputting the generated command voltage to the inverter; a control unit for controlling the command voltage output unit such that the command voltage output to the inverter is compared with an operation limiting voltage and the command voltage is corrected to fall within the operation limiting voltage; and the inverter for controlling the induction electric motor depending on the corrected command voltage. Thus, it is possible to precisely control the induction electric motor even in a high speed operation region by regulating the magnitude of the command voltage applied to the induction electric motor by means of dynamic modulation strategies without the magnetic flux controller.

公开(公告)号：US09797406B2

公开(公告)日：2017-10-24

申请号：US14616960

申请日：2015-02-09

申请人： NIDEC SERVO CORPORATION

发明人： Masatomo Ishikawa

IPC分类号： H02P21/00 ,  F04D27/00 ,  H02P21/26 ,  H02P21/18

CPC分类号： F04D27/004 ,  H02P21/18 ,  H02P21/26

摘要： A motor device configured to convey a fluid by driving a fan with a motor includes a position/speed acquirer configured to acquire a current rotation angle and a current rotation speed of the motor, a multiplier configured to calculate a flow-rate-constant target driving current by multiplying the rotation speed and a flow rate coefficient, and a current controller configured or programmed to control a motor driving current by setting, as a control target, the flow-rate-constant target driving current and to control a flow rate of the fluid to be maintained at a constant value which depends on the flow rate coefficient.

公开(公告)号：US09263979B2

公开(公告)日：2016-02-16

申请号：US14163462

申请日：2012-07-26

申请人： Da Zhang ,  Thomas Gietzold ,  Subbarao Varigonda ,  Salih Baris Ozturk

发明人： Da Zhang ,  Thomas Gietzold ,  Subbarao Varigonda ,  Salih Baris Ozturk

IPC分类号： H02P6/04 ,  H02P6/20 ,  H02P1/46 ,  H02P21/00 ,  H02P21/14

CPC分类号： H02P6/205 ,  H02P1/46 ,  H02P6/21 ,  H02P21/18 ,  H02P21/26 ,  H02P21/32 ,  H02P21/34

摘要： A method of conducting smooth motor startup is provided and includes operating a motor in an open loop control scheme at startup, operating the motor in a closed loop sensorless control scheme at a time after startup and transitioning between the open loop control scheme and the closed loop control scheme by reducing a difference between an estimated rotor angle of the motor and a commanded ramping angle of the motor.

摘要翻译： 提供了一种进行平滑电机启动的方法，包括启动时以开环控制方式操作电动机，在开环控制方案和闭环控制方案启动和转换之后，以闭环无传感器控制方式运行电机 通过减小电动机的估计转子角度和电动机的指令斜坡角之间的差异来实现控制方案。

公开(公告)号：US20150357953A1

公开(公告)日：2015-12-10

申请号：US14760482

申请日：2013-11-26

申请人： Research Cooperation Foundation of Yeungnam University

发明人： Jul Ki SEOK ,  Se Hwan KIM

IPC分类号： H02P21/00 ,  H02P21/14

CPC分类号： H02P21/30 ,  B60L15/025 ,  B60L2220/16 ,  H02P21/0021 ,  H02P21/18 ,  H02P21/22 ,  H02P21/26 ,  H02P27/085 ,  H02P2207/05 ,  Y02T10/643

摘要： Provides a method for controlling an AC motor, including: receiving a torque command value; generating a command current based on the torque command, and a command voltage by using the generated command current in a current vector controller (CVC) current control mode; switching to a hexagon voltage manipulating controller (HVMC) voltage control mode when the command voltage enters a voltage limit area, and generating a command voltage in the HVMC voltage control mode; and controlling torque of an AC motor by using the command voltage that is generated in the CVC current control mode or the HVMC voltage control mode.

摘要翻译： 提供一种用于控制AC电动机的方法，包括：接收转矩指令值; 通过在电流矢量控制器（CVC）电流控制模式中使用产生的指令电流产生基于转矩指令的指令电流和指令电压; 当指令电压进入电压限制区域时，切换到六边形电压调节控制器（HVMC）电压控制模式，并在HVMC电压控制模式下产生指令电压; 并通过使用在CVC电流控制模式或HVMC电压控制模式中产生的指令电压来控制交流电动机的转矩。