公开(公告)号：US20240045000A1

公开(公告)日：2024-02-08

申请号：US18366272

申请日：2023-08-07

Applicant: Danfoss Power Electronics A/S

Inventor： Sanjeet Kumar Dwivedi ,  Thiruvenkadam Madhulingam ,  Anandarao Bongu

IPC: G01R31/52 ,  G01R31/72

CPC classification number: G01R31/52 ,  G01R31/72 ,  H02P29/024

Abstract: A method for detecting a short circuit in a winding of an electric motor being driven by a drive, the method includes measuring respective phase currents of the windings, transforming the phase currents to negative sequence components, and comparing the negative sequence components with respective baseline values. A corresponding control unit is further disclosed.

公开(公告)号：US20230318499A1

公开(公告)日：2023-10-05

申请号：US18192366

申请日：2023-03-29

Applicant: Danfoss Power Electronics A/S

Inventor： Ana-Mari Tataru Kjær ,  Sanjeet Kumar Dwivedi ,  Thiruvenkadam Madhulingam ,  Katuri Gudaru Venkaiah

IPC: H02P21/14 ,  G01R19/04

CPC classification number: H02P21/14 ,  G01R19/04

Abstract: A method for determining a motor type of an electric motor includes several phases, wherein two or more pulses are applied to the motor, respective currents are measured and the motor type is determined based on the pulses. Further, a motor control apparatus is configured to perform such a method.