Method and system for torque control in permanent magnet machines
    1.
    发明授权
    Method and system for torque control in permanent magnet machines 有权
    永磁机械转矩控制方法与系统

    公开(公告)号:US07595600B2

    公开(公告)日:2009-09-29

    申请号:US11759266

    申请日:2007-06-07

    IPC分类号: H02P7/00

    CPC分类号: H02P21/141 H02P21/20

    摘要: Methods and systems are provided for controlling permanent magnet machines. The method includes determining a maximum torque of the PM machine based on an error between a commanded d-axis flux and an estimated d-axis flux of the PM machine, and adjusting a torque command based on the maximum torque. The error associated with a variation between a current temperature and a nominal temperature of the PM machine.

    摘要翻译: 提供用于控制永磁机的方法和系统。 该方法包括基于指令的d轴磁通与PM机的估计d轴磁通之间的误差来确定PM机的最大转矩,以及基于最大转矩来调整转矩指令。 与PM机的当前温度和标称温度之间的变化相关的误差。

    METHOD AND SYSTEM FOR MOTOR CONTROL WITH DELAY COMPENSATION
    3.
    发明申请
    METHOD AND SYSTEM FOR MOTOR CONTROL WITH DELAY COMPENSATION 有权
    具有延迟补偿的电机控制方法与系统

    公开(公告)号:US20080272732A1

    公开(公告)日:2008-11-06

    申请号:US11743718

    申请日:2007-05-03

    IPC分类号: H02P27/04

    CPC分类号: H02P23/0004

    摘要: Methods and systems are provided for controlling an electric machine via an inverter while compensating for one or more hardware delays. The method includes receiving a control signal, producing a first sampling signal based on the control signal, and adjusting the sampling signal to compensate for a first delay of the one or more hardware delays. The inverter is operable to produce a voltage signal based on the control signal, and the electric machine is operable to produce a current based on the voltage signal. A sampling of the current is performed based on the first sampling signal.

    摘要翻译: 提供了用于通过反相器控制电机的方法和系统,同时补偿一个或多个硬件延迟。 该方法包括接收控制信号,基于控制信号产生第一采样信号,以及调整采样信号以补偿一个或多个硬件延迟的第一延迟。 逆变器可操作以基于控制信号产生电压信号,并且电机可操作以基于电压信号产生电流。 基于第一采样信号执行电流的采样。

    REDUCTION OF SUBHARMONIC OSCILLATION AT HIGH FREQUENCY OPERATION OF A POWER INVERTER
    4.
    发明申请
    REDUCTION OF SUBHARMONIC OSCILLATION AT HIGH FREQUENCY OPERATION OF A POWER INVERTER 有权
    降低功率变换器高频运行时的次谐波振荡

    公开(公告)号:US20080197800A1

    公开(公告)日:2008-08-21

    申请号:US11676527

    申请日:2007-02-20

    IPC分类号: H02P27/04

    摘要: A control architecture for an electrical inverter includes a synchronous frame current regulator and a stationary frame current regulator. The stationary frame current regulator receives input currents that represent filtered versions of stationary frame currents that correspond to the inverter output currents. The control architecture employs an adaptive filter module that filters the stationary frame currents to remove the fundamental motor frequency component (and its related harmonics), thus extracting any low frequency harmonic components. The stationary frame current regulator processes the low frequency components, while the synchronous frame current regulator processes the fundamental frequency component, resulting in suppression of low frequency oscillations in the inverter output.

    摘要翻译: 用于电力逆变器的控制架构包括同步电流调节器和静止电流调节器。 静态框架电流调节器接收表示对应于逆变器输出电流的静态框电流的滤波版本的输入电流。 控制架构采用自适应滤波器模块,对固定电流进行滤波,去除基波电机频率分量(及其相关谐波),从而提取任何低频谐波分量。 静态电流调节器处理低频分量,而同步电流调节器处理基频分量,从而抑制逆变器输出中的低频振荡。

    Current regulator and current control method and system for AC motors
    5.
    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。

    Anti-windup control for a current regulator of a pulse width modulation inverter
    6.
    发明授权
    Anti-windup control for a current regulator of a pulse width modulation inverter 有权
    脉冲宽度调制逆变器电流调节器的防饱和控制

    公开(公告)号:US07642737B2

    公开(公告)日:2010-01-05

    申请号:US11685729

    申请日:2007-03-13

    IPC分类号: H02P21/00

    CPC分类号: H02P21/22

    摘要: A control architecture for an electrical inverter includes a command limiter that is realized as a circular voltage limiter. The command limiter includes a Cartesian-to-polar converter coupled to a command source such as a synchronous frame current regulator. The Cartesian-to-polar converter provides magnitude and phase components for d-q command voltages. The command limiter further includes a magnitude limiter that limits the magnitude component to the maximum fundamental voltage component of the inverter, and a polar-to-Cartesian converter that converts the limited magnitude component and the phase component into modified d-q command voltages.

    摘要翻译: 用于逆变器的控制结构包括实现为圆形电压限制器的指令限制器。 命令限制器包括耦合到诸如同步帧电流调节器的命令源的笛卡尔到极化转换器。 笛卡尔到极化转换器为d-q指令电压提供幅度和相位分量。 命令限制器还包括限幅器,其将幅度分量限制到逆变器的最大基波电压分量;以及极限到笛卡尔转换器,其将受限幅度分量和相位分量转换为修改的d-q指令电压。

    Method and system for initiating operation of an electric motor
    7.
    发明授权
    Method and system for initiating operation of an electric motor 有权
    电动机启动运行的方法和系统

    公开(公告)号:US08319460B2

    公开(公告)日:2012-11-27

    申请号:US12606839

    申请日:2009-10-27

    IPC分类号: H02P6/04

    CPC分类号: H02P6/20

    摘要: Methods and systems for controlling an electric motor are provided. The motor includes a plurality of windings. Each winding is coupled to a respective set of first and second switches. The first switch of each set of switches is simultaneously activated. Current flow through the plurality of windings is measured while the first switch of each set of switches is activated. The electric motor is controlled according to a first motor control method if the measured current is below a predetermined threshold. The electric motor is controlled according to a second motor control method if the measured current is above the predetermined threshold.

    摘要翻译: 提供了用于控制电动机的方法和系统。 马达包括多个绕组。 每个绕组耦合到相应的一组第一和第二开关。 每组开关的第一个开关同时被激活。 当每组开关的第一开关被激活时,测量通过多个绕组的电流。 如果测量电流低于预定阈值,则根据第一电动机控制方法来控制电动机。 如果测量的电流高于预定阈值,则根据第二电动机控制方法来控制电动机。

    Method and system for operating a motor to reduce noise in an electric vehicle
    9.
    发明授权
    Method and system for operating a motor to reduce noise in an electric vehicle 有权
    用于操作电动机以减少电动车辆噪声的方法和系统

    公开(公告)号:US07576500B2

    公开(公告)日:2009-08-18

    申请号:US11756349

    申请日:2007-05-31

    IPC分类号: H02P1/00

    摘要: Methods and systems for operating a motor coupled to an electrical bus in a vehicle are provided. Selected resonant frequencies of the electrical bus are determined. The selected resonant frequencies include a low resonant frequency and a high resonant frequency. Power is provided to the motor through at least one switch operating at a switching frequency. The switching frequency is controlled as a function of a rate of operation of the motor. The function is characterized by one of a first substantially linear portion having a first slope when the switching frequency is less than or equal to a selected switching frequency and a second substantially linear portion having a second slope if the switching frequency is greater than the selected frequency, the selected switching frequency being greater than the low resonant frequency and a substantially linear portion having a y-intercept being greater than the low resonant frequency.

    摘要翻译: 提供了用于操作耦合到车辆中的电气总线的马达的方法和系统。 确定电气总线的选定谐振频率。 所选择的谐振频率包括低谐振频率和高谐振频率。 通过至少一个以开关频率工作的开关将电力提供给电动机。 开关频率根据电机的运行速度进行控制。 该功能的特征在于当开关频率小于或等于所选择的开关频率时具有第一斜率的第一基本线性部分中的一个以及具有第二斜率的第二基本线性部分,如果开关频率大于所选择的频率 ,所选择的开关频率大于低谐振频率,并且具有大于低谐振频率的y截距的基本线性部分。

    METHOD AND SYSTEM FOR OPERATING A MOTOR TO REDUCE NOISE IN AN ELECTRIC VEHICLE
    10.
    发明申请
    METHOD AND SYSTEM FOR OPERATING A MOTOR TO REDUCE NOISE IN AN ELECTRIC VEHICLE 有权
    用于操作电动机以减少电动车噪声的方法和系统

    公开(公告)号:US20080298785A1

    公开(公告)日:2008-12-04

    申请号:US11756349

    申请日:2007-05-31

    IPC分类号: H02P7/285

    摘要: Methods and systems for operating a motor coupled to an electrical bus in a vehicle are provided. Selected resonant frequencies of the electrical bus are determined. The selected resonant frequencies include a low resonant frequency and a high resonant frequency. Power is provided to the motor through at least one switch operating at a switching frequency. The switching frequency is controlled as a function of a rate of operation of the motor. The function is characterized by one of a first substantially linear portion having a first slope when the switching frequency is less than or equal to a selected switching frequency and a second substantially linear portion having a second slope if the switching frequency is greater than the selected frequency, the selected switching frequency being greater than the low resonant frequency and a substantially linear portion having a y-intercept being greater than the low resonant frequency.

    摘要翻译: 提供了用于操作耦合到车辆中的电气总线的马达的方法和系统。 确定电气总线的选定谐振频率。 所选择的谐振频率包括低谐振频率和高谐振频率。 通过至少一个以开关频率工作的开关将电力提供给电动机。 开关频率根据电机的运行速度进行控制。 该功能的特征在于当开关频率小于或等于所选择的开关频率时具有第一斜率的第一基本线性部分中的一个以及具有第二斜率的第二基本线性部分,如果开关频率大于所选择的频率 ,所选择的开关频率大于低谐振频率,并且具有大于低谐振频率的y截距的基本线性部分。