公开(公告)号：US20080272732A1

公开(公告)日：2008-11-06

申请号：US11743718

申请日：2007-05-03

Applicant: Steven E. Schulz ,  Nitinkumar R. Patel ,  Bonho Bae ,  Stephen T. West

Inventor： Steven E. Schulz ,  Nitinkumar R. Patel ,  Bonho Bae ,  Stephen T. West

IPC: H02P27/04

CPC classification number: H02P23/0004

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20080197800A1

公开(公告)日：2008-08-21

申请号：US11676527

申请日：2007-02-20

Applicant: Bonho Bae ,  Nitinkumar R. Patel ,  Steven E. Schulz ,  Silva Hiti

Inventor： Bonho Bae ,  Nitinkumar R. Patel ,  Steven E. Schulz ,  Silva Hiti

IPC: H02P27/04

CPC classification number: B60L15/025 ,  B60L11/1803 ,  B60L15/20 ,  B60L2210/20 ,  B60L2220/14 ,  H02P21/04 ,  Y02T10/643 ,  Y02T10/7005 ,  Y02T10/725 ,  Y02T10/7275

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07843162B2

公开(公告)日：2010-11-30

申请号：US12048071

申请日：2008-03-13

Applicant: Bonho Bae ,  Nitinkumar R. Patel ,  Steven E. Schulz ,  James M. Nagashima ,  Jung Sik Yim ,  Seung Ki Sul

Inventor： Bonho Bae ,  Nitinkumar R. Patel ,  Steven E. Schulz ,  James M. Nagashima ,  Jung Sik Yim ,  Seung Ki Sul

IPC: H02P27/04

CPC classification number: H02P21/22

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07642737B2

公开(公告)日：2010-01-05

申请号：US11685729

申请日：2007-03-13

Applicant: Bonho Bae ,  Steven E. Schulz ,  Silva Hiti ,  Nitinkumar R. Patel

Inventor： Bonho Bae ,  Steven E. Schulz ,  Silva Hiti ,  Nitinkumar R. Patel

IPC: H02P21/00

CPC classification number: H02P21/22

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07595600B2

公开(公告)日：2009-09-29

申请号：US11759266

申请日：2007-06-07

Applicant: Nitinkumar R. Patel ,  Brian A Welchko ,  Bonho Bae ,  Steven E. Schulz

Inventor： Nitinkumar R. Patel ,  Brian A Welchko ,  Bonho Bae ,  Steven E. Schulz

IPC: H02P7/00

CPC classification number: H02P21/141 ,  H02P21/20

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20090230900A1

公开(公告)日：2009-09-17

申请号：US12048071

申请日：2008-03-13

Applicant: BONHO BAE ,  NITINKUMAR R. PATEL ,  STEVEN E. SCHULZ ,  JAMES M. NAGASHIMA ,  JUNG SIK YIM ,  SEUNG KI SUL

Inventor： BONHO BAE ,  NITINKUMAR R. PATEL ,  STEVEN E. SCHULZ ,  JAMES M. NAGASHIMA ,  JUNG SIK YIM ,  SEUNG KI SUL

IPC: H02P21/14

CPC classification number: H02P21/22

Abstract: 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.

Abstract translation: 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，产生基于抗融场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。

公开(公告)号：US20080197902A1

公开(公告)日：2008-08-21

申请号：US11676574

申请日：2007-02-20

Applicant: Brian A. Welchko ,  Bonho Bae ,  Steven E. Schulz ,  Silva Hiti

Inventor： Brian A. Welchko ,  Bonho Bae ,  Steven E. Schulz ,  Silva Hiti

IPC: H03K3/017

CPC classification number: H03K3/017 ,  H02M7/5395 ,  H02M2001/0025 ,  H02P27/06

Abstract: Methods and apparatus are provided for reducing voltage distortion effects at low speed operation in electric drives. The method comprises receiving a first signal having a duty cycle with a range between minimum and maximum achievable duty cycles, producing a second duty cycle based on the minimum achievable duty cycle if the duty cycle is within a distortion range and less than a first clipping value, producing a second duty cycle based on the closer of minimum and maximum pulse widths if the duty cycle is within the distortion range and between the first and a second clipping value, producing a second duty cycle based on the maximum achievable duty cycle if the duty cycle is within the distortion range and greater than the second clipping value, and transmitting a second signal to the voltage source inverter having the second duty cycle.

Abstract translation: 提供了用于在电驱动器中降低低速运行时的电压失真效应的方法和装置。 该方法包括接收具有在最小和最大可实现占空比之间的范围的占空比的第一信号，如果占空比在失真范围内并小于第一限幅值，则基于最小可实现占空比产生第二占空比 如果占空比在失真范围内，并且在第一和第二限幅值之间，则基于更小的最小和最大脉冲宽度产生第二占空比，如果占空比基于最大可实现的占空比，则产生第二占空比 循环处于失真范围内并且大于第二限幅值，并且将第二信号发送到具有第二占空比的电压源逆变器。

公开(公告)号：US07679309B2

公开(公告)日：2010-03-16

申请号：US11743718

申请日：2007-05-03

Applicant: Steven E. Schulz ,  Nitinkumar R. Patel ,  Bonho Bae ,  Stephen T. West

Inventor： Steven E. Schulz ,  Nitinkumar R. Patel ,  Bonho Bae ,  Stephen T. West

IPC: H02P23/00

CPC classification number: H02P23/0004

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07659684B2

公开(公告)日：2010-02-09

申请号：US11738854

申请日：2007-04-23

Applicant: Nitinkumar R. Patel ,  Bonho Bae ,  Steven E. Schulz

Inventor： Nitinkumar R. Patel ,  Bonho Bae ,  Steven E. Schulz

IPC: G05B11/01

CPC classification number: B60L3/12 ,  H02P23/04 ,  H02P27/08 ,  Y02T10/642

Abstract: A method and system for operating a motor are provided. Power is provided to the motor through at least one switch operating at a first switching frequency. A pulse ratio of the motor is calculated based on the first switching frequency. The at least one switch is operated at a second switching frequency if the calculated pulse ratio is less than a first pulse ratio value and greater than a second pulse ratio value.

Abstract translation: 提供了一种用于操作电动机的方法和系统。 通过至少一个以第一开关频率工作的开关将电力提供给电动机。 基于第一开关频率计算电动机的脉冲比。 如果所计算的脉冲比小于第一脉冲比值且大于第二脉冲比值，则至少一个开关以第二开关频率工作。

公开(公告)号：US07471526B2

公开(公告)日：2008-12-30

申请号：US11676574

申请日：2007-02-20

Applicant: Brian A Welchko ,  Bonho Bae ,  Steven E. Schulz ,  Silva Hiti

Inventor： Brian A Welchko ,  Bonho Bae ,  Steven E. Schulz ,  Silva Hiti

IPC: H02M7/537 ,  H02P23/00

CPC classification number: H03K3/017 ,  H02M7/5395 ,  H02M2001/0025 ,  H02P27/06

Abstract: Methods and apparatus are provided for reducing voltage distortion effects at low speed operation in electric drives. The method comprises receiving a first signal having a duty cycle with a range between minimum and maximum achievable duty cycles, producing a second duty cycle based on the minimum achievable duty cycle if the duty cycle is within a distortion range and less than a first clipping value, producing a second duty cycle based on the closer of minimum and maximum pulse widths if the duty cycle is within the distortion range and between the first and a second clipping value, producing a second duty cycle based on the maximum achievable duty cycle if the duty cycle is within the distortion range and greater than the second clipping value, and transmitting a second signal to the voltage source inverter having the second duty cycle.

Abstract translation: 提供了用于在电驱动器中降低低速运行时的电压失真效应的方法和装置。 该方法包括接收具有在最小和最大可实现占空比之间的范围的占空比的第一信号，如果占空比在失真范围内并小于第一限幅值，则基于最小可实现占空比产生第二占空比 如果占空比在失真范围内，并且在第一和第二限幅值之间，则基于更小的最小和最大脉冲宽度产生第二占空比，如果占空比基于最大可实现的占空比，则产生第二占空比 循环处于失真范围内并且大于第二限幅值，并且将第二信号发送到具有第二占空比的电压源逆变器。