公开(公告)号：US10355631B1

公开(公告)日：2019-07-16

申请号：US15900829

申请日：2018-02-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Caleb W. Secrest ,  Brent S. Gagas ,  Dwarakanath V. Simili

IPC: H02P21/00 ,  H02P21/22 ,  B60L11/18 ,  H02P27/08

Abstract: A current regulator is provided for an electric machine drive system for driving an electric machine. The current regulator is configurable to operate in a first configuration or a second configuration depending on a synchronous speed of the electric machine. A controller can configure an operational mode of the current regulator by selecting, based on the synchronous speed of the electric machine, either the first configuration of the current regulator or the second configuration of the current regulator as a currently active configuration, and can then execute the current regulator in accordance with the currently active configuration. The first configuration of the current regulator comprises a first set of elements and cross-coupling gain blocks, whereas the second configuration of the current regulator can include the first set of elements without the cross-coupling gain blocks. The first set elements can vary depending on the implementation, but can generally include: summing junctions, integrators, and gain blocks. In one embodiment, the current regulator is configured to operate as a complex vector current regulator when configured in the first configuration, and is configured to operate as a state feedback decoupling (SFbD) current regulator when configured in the second configuration.

公开(公告)号：US20190028044A1

公开(公告)日：2019-01-24

申请号：US15658132

申请日：2017-07-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： David S. Ochs ,  Yo Chan Son ,  Caleb W. Secrest

IPC: H02P6/17 ,  H02P6/08

Abstract: Systems and method for operating motors are provided. In an exemplary embodiment, a method for operating a motor includes receiving a first output corresponding to a motor angular position. The method further includes synthesizing a synthesized second output from the first output and from an estimated motor angular velocity. The method also includes calculating the motor angular position from the first output and the synthesized second output. The method includes estimating the motor angular velocity from the motor angular position. Further, the method includes operating the motor to produce torque based on the motor angular position and the motor angular velocity.