Three-phase pulse width modulation method and system for alternating current motor
    1.
    发明授权
    Three-phase pulse width modulation method and system for alternating current motor 失效
    交流电机三相脉宽调制方式及系统

    公开(公告)号:US06185115B2

    公开(公告)日:2001-02-06

    申请号:US09354715

    申请日:1999-07-16

    IPC分类号: H02M545

    CPC分类号: H02M5/4585 H02M2001/123

    摘要: A three-phase pulse width modulation method in a motor control system which drives a three-phase AC motor that determines a current switching pattern of a converter and then moves switching points of three phases of an inverter so that a switching point of a phase among the three-phases of the converter accords with a switching point of a phase among the three-phases of the inverter in accordance with the determined switching pattern, thereby reducing a voltage generated between the three-phase Ac motor and a ground, that is the size of the pulse number of a common-mode voltage.

    摘要翻译: 一种电动机控制系统中的三相脉宽调制方法,其驱动三相交流电动机,所述三相交流电动机确定变换器的电流开关模式,然后移动逆变器的三相的开关点, 转换器的三相根据所确定的开关模式与逆变器的三相中的相位的切换点一致,从而减小三相AC电动机和地之间产生的电压,即 共模电压脉冲数的大小。

    Variable speed induction motor with single external power supply and control method thereof
    2.
    发明授权
    Variable speed induction motor with single external power supply and control method thereof 有权
    具有单个外部电源的变速感应电动机及其控制方法

    公开(公告)号:US09257933B2

    公开(公告)日:2016-02-09

    申请号:US13597663

    申请日:2012-08-29

    CPC分类号: H02P25/26 H02P27/05

    摘要: A single external power supply variable speed induction motor and a control method thereof are disclosed. An induction motor includes: a stator in which coils directly connected to a single-phase or 3-phase or more systematic power supply are wound; a rotor that is supported to be rotatable in the stator; a power conversion device that is attached to the rotor and controls a rotor current without connection of a separate external power supply; and a control circuit that is connected to the power conversion device and controls the power conversion device.

    摘要翻译: 公开了一种外部电源变速感应电动机及其控制方法。 感应电动机包括:缠绕直接连接到单相或三相或更系统的电源的线圈的定子; 支承在所述定子中可旋转的转子; 功率转换装置,其连接到转子并控制转子电流,而不连接单独的外部电源; 以及连接到电力转换装置并控制电力转换装置的控制电路。

    Apparatus and method of estimating inductance of permanent magnet synchronous motor
    3.
    发明申请
    Apparatus and method of estimating inductance of permanent magnet synchronous motor 有权
    估计永磁同步电机电感的装置及方法

    公开(公告)号:US20120194113A1

    公开(公告)日:2012-08-02

    申请号:US13137309

    申请日:2011-08-04

    IPC分类号: H02P6/18

    CPC分类号: H02P6/18

    摘要: A method of estimating inductance of a permanent magnet synchronous motor (PMSM) includes injecting a signal having a frequency differing from an operating frequency of the PMSM into the PMSM during sensorless operation, sensing magnitudes of current responses to the injected signal, and estimating an inductance value at which the magnitude of the sensed current response is minimal to be an actual inductance value of the PMSM, thereby estimating inductance used in the PMSM regardless of position estimation error of the PMSM and thus more accurately and reliably estimating inductance of the PMSM.

    摘要翻译: 估计永磁同步电动机(PMSM)的电感的方法包括在无传感器运行期间将具有与PMSM的工作频率不同的频率的信号注入到PMSM中,感测对所注入的信号的电流响应的大小,以及估计电感 检测到的电流响应的大小最小的值是PMSM的实际电感值,从而估计在PMSM中使用的电感,而不管PMSM的位置估计误差如何,并且因此更准确和可靠地估计PMSM的电感。

    Apparatus and method of estimating inductance of permanent magnet synchronous motor
    4.
    发明授权
    Apparatus and method of estimating inductance of permanent magnet synchronous motor 有权
    估计永磁同步电机电感的装置及方法

    公开(公告)号:US08786230B2

    公开(公告)日:2014-07-22

    申请号:US13137309

    申请日:2011-08-04

    IPC分类号: H02P6/18

    CPC分类号: H02P6/18

    摘要: A method of estimating inductance of a permanent magnet synchronous motor (PMSM) includes injecting a signal having a frequency differing from an operating frequency of the PMSM into the PMSM during sensorless operation, sensing magnitudes of current responses to the injected signal, and estimating an inductance value at which the magnitude of the sensed current response is minimal to be an actual inductance value of the PMSM, thereby estimating inductance used in the PMSM regardless of position estimation error of the PMSM and thus more accurately and reliably estimating inductance of the PMSM.

    摘要翻译: 估计永磁同步电动机(PMSM)的电感的方法包括在无传感器运行期间将具有与PMSM的工作频率不同的频率的信号注入到PMSM中,感测对所注入的信号的电流响应的大小,以及估计电感 检测到的电流响应的大小最小的值是PMSM的实际电感值,从而估计在PMSM中使用的电感,而不管PMSM的位置估计误差如何,并且因此更准确和可靠地估计PMSM的电感。

    Method and system for controlling permanent magnet motor drive systems
    5.
    发明授权
    Method and system for controlling permanent magnet motor drive systems 有权
    控制永磁电机驱动系统的方法和系统

    公开(公告)号:US07282886B1

    公开(公告)日:2007-10-16

    申请号:US11462596

    申请日:2006-08-04

    IPC分类号: H02P1/24 H02P5/28 H02P7/00

    CPC分类号: B60L15/025 Y02T10/643

    摘要: Methods and system are provided for controlling permanent magnet motor drive systems. The method comprises the steps of adjusting a first current command in response to a first voltage error to produce a first adjusted current, adjusting a second current command in response to a second voltage error to produce a second adjusted current, limiting each of the first and second adjusted current below a maximum current, converting the first adjusted current to a first potential, converting the second current command to a second potential, and supplying the first and second potentials to the permanent magnet motor. The first voltage error is derived from the second current command, and the second voltage error is derived from the first current command.

    摘要翻译: 提供用于控制永磁电机驱动系统的方法和系统。 该方法包括以下步骤:响应于第一电压误差调整第一电流指令以产生第一调整电流,响应于第二电压误差调整第二电流指令以产生第二调整电流,限制第一和第 第二调整电流低于最大电流,将第一调整电流转换为第一电位,将第二电流指令转换为第二电位,并将第一和第二电位提供给永磁电动机。 从第二电流指令导出第一电压误差,从第一电流指令导出第二电压误差。

    Methods and apparatus for fault-tolerant control of electric machines
    6.
    发明授权
    Methods and apparatus for fault-tolerant control of electric machines 有权
    电机容错控制方法与装置

    公开(公告)号:US06989641B2

    公开(公告)日:2006-01-24

    申请号:US10452817

    申请日:2003-06-02

    IPC分类号: B60L3/00

    摘要: A method for controlling an electric machine having current sensors for less than every phase of the electric machine includes operating a processor to perform a test to preliminarily determine whether a fault exists in one or more of the current sensors and a test to finally determine that the fault exists in the one or more current sensors. The method further includes operating the processor to utilize a state observer of the electric machine to estimate states of the electric machine, wherein the state observer is provided state input measurements from each non-faulty current sensor, if any. Measurements from the current sensor or sensors determined to be faulty are disregarded. The processor controls the electric machine utilizing results from the state observer.

    摘要翻译: 用于控制具有小于电机每相的电流传感器的电机的方法包括操作处理器以执行测试,以初步确定在一个或多个电流传感器中是否存在故障,并且进行测试以最终确定 一个或多个电流传感器存在故障。 该方法还包括操作处理器以利用电机的状态观察器来估计电机的状态,其中状态观察器被提供来自每个非故障电流传感器的状态输入测量值(如果有的话)。 来自当前传感器或被确定为有故障的传感器的测量被忽略。 处理器利用来自状态观测器的结果控制电机。

    Current regulator and current control method and system for AC motors
    8.
    发明授权
    Current regulator and current control method and system for AC motors 有权
    交流电机的电流调节器和电流控制方法及系统

    公开(公告)号:US07843162B2

    公开(公告)日:2010-11-30

    申请号:US12048071

    申请日:2008-03-13

    IPC分类号: H02P27/04

    CPC分类号: H02P21/22

    摘要: Methods and systems are provided for controlling an AC motor via an inverter. The method includes determining a delay-compensated offset based on a synchronous frame current, producing a current error based on a synchronous frame current and a commanded current, producing a voltage error based on an anti-windup offset and the current error, producing a commanded voltage based on the delay-compensated offset and the voltage error, and providing the inverter with the commanded voltage.

    摘要翻译: 提供了用于通过逆变器控制AC电动机的方法和系统。 该方法包括基于同步帧电流确定延迟补偿的偏移,基于同步帧电流和指令电流产生电流误差,产生基于抗饱和偏移和当前误差的电压误差,产生命令 基于延迟补偿偏移和电压误差的电压,并向逆变器提供指令电压。

    On-line minimum copper loss control of interior permanent-magnet synchronous machine for automotive applications
    9.
    发明授权
    On-line minimum copper loss control of interior permanent-magnet synchronous machine for automotive applications 有权
    用于汽车应用的内置永磁同步电机的在线最小铜损控制

    公开(公告)号:US07667426B2

    公开(公告)日:2010-02-23

    申请号:US11156019

    申请日:2005-06-17

    IPC分类号: H02P6/00 H02P6/06

    摘要: A system and method for controlling an IPM synchronous machine in a vehicle that calculates an operating trajectory of the machine on-line. The system defines three operating ranges of the machine based on voltage magnitude, where a first operating range is controlled by a current limit of the machine and second and third operating regions are controlled by a voltage limit of the machine. The system calculates d- and q-axis current reference signals in the reference rotor frame for each of the three regions. The system determines which set of current reference signals will be used to control the machine based on the operating region. The third operating region is used during over-modulation of the machine.

    摘要翻译: 一种用于控制车辆中的IPM同步机的系统和方法,所述系统和方法在线计算机器的操作轨迹。 该系统基于电压幅度来定义机器的三个操作范围,其中第一操作范围由机器的电流限制控制,第二和第三操作区域由机器的电压限制来控制。 该系统为三个区域中的每一个计算参考转子框架中的d轴和q轴电流参考信号。 该系统基于操作区域确定将使用哪组当前参考信号来控制机器。 在机器的过调制期间使用第三操作区域。

    Field weakening motor control system and method
    10.
    发明授权
    Field weakening motor control system and method 失效
    弱磁电机控制系统及方法

    公开(公告)号:US07023168B1

    公开(公告)日:2006-04-04

    申请号:US10939553

    申请日:2004-09-13

    IPC分类号: H02P3/18 H02P5/04 H02P5/28

    CPC分类号: H02P21/10 H02P21/0089

    摘要: A control system for an electric machine includes a flux weakening module, which includes a voltage magnitude calculator that receives d-axis and q-axis command voltages and that generates a voltage magnitude. An error circuit compares the voltage magnitude to a reference voltage and generates an error signal. A controller receives the error signal and generates a feedback flux correction signal. A limiter limits the feedback flux correction signal to a predetermined flux value and generates a limited feedback flux correction signal. A feedforward stator flux generating circuit generates a feedforward stator flux signal. A summing circuit sums the feedforward stator flux signal and the limited feedback flux correction signal to generate a final stator flux command.

    摘要翻译: 一种用于电机的控制系统包括磁通削弱模块,其包括接收d轴和q轴指令电压并产生电压幅度的电压幅度计算器。 误差电路将电压幅度与参考电压进行比较,并产生误差信号。 控制器接收误差信号并产生反馈磁通校正信号。 限制器将反馈磁通校正信号限制在预定磁通值,并产生有限的反馈磁通校正信号。 前馈定子通量产生电路产生前馈定子磁通信号。 求和电路将前馈定子磁通信号和有限反馈磁通校正信号相加,以产生最终的定子通量指令。