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公开(公告)号：US11558001B2
公开(公告)日：2023-01-17
申请号：US17541512
申请日：2021-12-03
Applicant: Danfoss Power Electronics A/S
IPC: H02P29/024
Abstract: The present invention is directed at a pulse shift protection method for detecting a phase-to-phase short circuit in a drive for controlling electric motors, wherein the drive provides an output voltage to the electric motor, and wherein the instant, at which a short circuit detection function is executed, is chosen to minimize disturbance in the output voltage of the drive. The invention is also directed at a drive for controlling electric motors, said drive including a controlling portion for generating an output signal and an output portion connectable to an electric motor. The drive is provided for executing the above-mentioned pulse shift protection method.
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公开(公告)号：US20220182005A1
公开(公告)日：2022-06-09
申请号：US17541512
申请日：2021-12-03
Applicant: Danfoss Power Electronics A/S
IPC: H02P29/024
Abstract: The present invention is directed at a pulse shift protection method for detecting a phase-to-phase short circuit in a drive for controlling electric motors, wherein the drive provides an output voltage to the electric motor, and wherein the instant, at which a short circuit detection function is executed, is chosen to minimize disturbance in the output voltage of the drive. The invention is also directed at a drive for controlling electric motors, said drive including a controlling portion for generating an output signal and an output portion connectable to an electric motor. The drive is provided for executing the above-mentioned pulse shift protection method.
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