公开(公告)号：US20210010832A1

公开(公告)日：2021-01-14

申请号：US16506387

申请日：2019-07-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Young Joo Lee ,  Anno Yoo ,  Milan A. Vadera ,  Daniel J. Berry

IPC: G01D5/244 ,  G01R31/34

Abstract: A resolver disposed to monitor a rotatable member is described, along with an associated method for evaluating an output signal therefrom. The method for monitoring the resolver includes supplying an excitation signal to the resolver, and monitoring, at an oversampling rate, first and second output signals from the resolver. An oversampling routine is executed to determine averages of the first and second output signals from the resolver. A demodulation angle error is determined based upon the first and second output signals from the resolver, and provided as feedback. A position of the resolver is also determined based upon the first and second output signals from the resolver.

公开(公告)号：US20160141983A1

公开(公告)日：2016-05-19

申请号：US14541177

申请日：2014-11-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jung Sik Yim ,  Jihoon Jang ,  Bon Ho Bae ,  Milan A. Vadera

IPC: H02P6/00

CPC classification number: H02P27/08 ,  H02P21/0089

Abstract: A voltage source inverter controller for controlling an inverter electrically connected to an electric machine includes a current command generator, a six-step flux controller and a current regulator. The six-step flux controller generates a flux modifier to regulate flux in a flux-weakening speed/load operating region of the electric machine when operating the electric machine in a six-step mode. The current command generator converts a desired torque to three-phase desired currents that are input to a dq0-dq transformer and combined with the flux modifier to determine a modified-flux direct-quadrature (dq) current request. The current regulator includes a proportional-integral feedback controller, anti-windup elements, a dq voltage limit element and a voltage magnitude limiter. The proportional-integral feedback controller and the anti-windup elements perform closed-loop current control on the modified-flux dq current request to determine commanded dq voltages.

Abstract translation: 用于控制与电机电连接的逆变器的电压源逆变器控制器包括电流指令发生器，六级通量控制器和电流调节器。 六步磁通控制器在六步模式下操作电机时产生磁通量调节器，以调节电机的磁通弱化速度/负载运行区域内的通量。 电流指令发生器将期望的转矩转换为输入到dq0-dq变压器的三相期望电流，并与磁通调节器组合以确定修正磁通直接正交（dq）电流请求。 电流调节器包括比例积分反馈控制器，防饱和元件，dq限压元件和电压幅度限制器。 比例积分反馈控制器和防饱和元件对修正磁通dq电流请求执行闭环电流控制，以确定指令的dq电压。

公开(公告)号：US11209291B2

公开(公告)日：2021-12-28

申请号：US16506387

申请日：2019-07-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Young Joo Lee ,  Anno Yoo ,  Milan A. Vadera ,  Daniel J. Berry

IPC: G01D5/244 ,  G01R31/34

Abstract: A resolver disposed to monitor a rotatable member is described, along with an associated method for evaluating an output signal therefrom. The method for monitoring the resolver includes supplying an excitation signal to the resolver, and monitoring, at an oversampling rate, first and second output signals from the resolver. An oversampling routine is executed to determine averages of the first and second output signals from the resolver. A demodulation angle error is determined based upon the first and second output signals from the resolver, and provided as feedback. A position of the resolver is also determined based upon the first and second output signals from the resolver.

公开(公告)号：US09407178B2

公开(公告)日：2016-08-02

申请号：US14541177

申请日：2014-11-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jung Sik Yim ,  Jihoon Jang ,  Bon Ho Bae ,  Milan A. Vadera

IPC: H02P6/08 ,  H02P6/00

CPC classification number: H02P27/08 ,  H02P21/0089

Abstract: A voltage source inverter controller for controlling an inverter electrically connected to an electric machine includes a current command generator, a six-step flux controller and a current regulator. The six-step flux controller generates a flux modifier to regulate flux in a flux-weakening speed/load operating region of the electric machine when operating the electric machine in a six-step mode. The current command generator converts a desired torque to three-phase desired currents that are input to a dq0-dq transformer and combined with the flux modifier to determine a modified-flux direct-quadrature (dq) current request. The current regulator includes a proportional-integral feedback controller, anti-windup elements, a dq voltage limit element and a voltage magnitude limiter. The proportional-integral feedback controller and the anti-windup elements perform closed-loop current control on the modified-flux dq current request to determine commanded dq voltages.

Abstract translation: 用于控制与电机电连接的逆变器的电压源逆变器控制器包括电流指令发生器，六级通量控制器和电流调节器。 六步磁通控制器在六步模式下操作电机时产生磁通量调节器，以调节电机的磁通弱化速度/负载运行区域内的通量。 电流指令发生器将期望的转矩转换为输入到dq0-dq变压器的三相期望电流，并与磁通调节器组合以确定修正磁通直接正交（dq）电流请求。 电流调节器包括比例积分反馈控制器，防饱和元件，dq限压元件和电压幅度限制器。 比例积分反馈控制器和防饱和元件对修正磁通dq电流请求执行闭环电流控制，以确定指令的dq电压。