公开(公告)号：US12132427B2

公开(公告)日：2024-10-29

申请号：US18116508

申请日：2023-03-02

Applicant: Turntide Technologies Inc.

Inventor： Trevor Creary ,  Mahesh Krishnamurthy ,  Tim Knodel

IPC: H02P25/089 ,  H02P6/18

CPC classification number: H02P25/089 ,  H02P6/186 ,  H02P2203/01 ,  H02P2203/03 ,  H02P2203/09

Abstract: A method for controlling switched reluctance machine (SRM) utilizing a SRM control system. The method allows for adaptive pulse positioning over a wide range of speeds and loads. An initial rotor position is provided for the SRM utilizing an initialization mechanism. A pinned point on a phase current waveform is defined during an initial current rise phase of the current waveform. A slope of the current rise is determined as the current waveform reaches the pinned point. The slope is then fed to the commutation module of the SRM control system. An error signal from calculated inductance or current slope is used as an input to a control loop in the SRM control system. The time determining module determines an optimum time signal to fire a next pulse. The optimum time signal is fed to the SRM for turning the plurality of SRM switches to on and off states.

公开(公告)号：US11601081B2

公开(公告)日：2023-03-07

申请号：US17516044

申请日：2021-11-01

Applicant: Turntide Technologies Inc.

Inventor： Trevor Creary ,  Mahesh Krishnamurthy ,  Tim Knodel

IPC: H02P25/089 ,  H02P6/18

Abstract: A method for controlling switched reluctance machine (SRM) utilizing a SRM control system. The method allows for adaptive pulse positioning over a wide range of speeds and loads. An initial rotor position is provided for the SRM utilizing an initialization mechanism. A pinned point on a phase current waveform is defined during an initial current rise phase of the current waveform. A slope of the current rise is determined as the current waveform reaches the pinned point. The slope is then fed to the commutation module of the SRM control system. An error signal from calculated inductance or current slope is used as an input to a control loop in the SRM control system. The time determining module determines an optimum time signal to fire a next pulse. The optimum time signal is fed to the SRM for turning the plurality of SRM switches to on and off states.