Method for boosting current compensation in auxiliary resonant commutated pole inverter (ARCPI) with saturable inductor

    公开(公告)号:US12255552B2

    公开(公告)日:2025-03-18

    申请号:US17975527

    申请日:2022-10-27

    Applicant: ABB Schweiz AG

    Abstract: A method for an auxiliary device of an auxiliary resonant commutated pole inverter (ARCPI) to determine a boosting time of the ARCPI is provided. The auxiliary device includes an auxiliary switch path that uses a resonant inductor with at least one saturable inductor. The method includes: calculating, by a processor of the auxiliary device, a first boosting time in the auxiliary switch path based on a theoretical resonance inductance and a voltage that are applied to the resonant inductor; determining, by the processor, a second boosting time in the auxiliary switch path based on a look-up table; and determining, by the processor, the boosting time in the auxiliary switch path based on the first boosting time and the second boosting time. The method further includes controlling, by the processor, boosting current of the ARCPI based on the boosting time in the auxiliary switch path.

    Voltage rate-of-change control for wide-bandgap-based inverter circuits for driving electric motors

    公开(公告)号:US11831251B2

    公开(公告)日:2023-11-28

    申请号:US17541784

    申请日:2021-12-03

    Applicant: ABB Schweiz AG

    CPC classification number: H02M7/53875 H02P27/06

    Abstract: An insulated gate field effect transistor (IGFET) based converter circuit is described that includes a direct current input comprising a high voltage input and a low voltage input, an IGFET gate input, and an equivalent phase leg comprising a plurality of parallel-connected cells. The parallel-connected cells each include: a first wide bandgap IGFET having a first drain electrode connected to the high voltage input, a first gate electrode connected to a first gate control input, and a first source electrode; a second wide bandgap IGFET having a second drain electrode connected to the first source electrode, a second gate electrode connected to a second gate control input, and a second source electrode connected to the low voltage input; and a step-inducing inductor coupled to: the first source electrode of the first wide bandgap IGFET, and an output node. The step-inducing inductor is connected to the output node.

    Method for Boosting Current Compensation in Auxiliary Resonant Commutated Pole Inverter (ARCPI) with Saturable Inductor

    公开(公告)号:US20240146212A1

    公开(公告)日:2024-05-02

    申请号:US17975527

    申请日:2022-10-27

    Applicant: ABB Schweiz AG

    CPC classification number: H02M7/539 H02M1/0012 H02M7/4815

    Abstract: A method for an auxiliary device of an auxiliary resonant commutated pole inverter (ARCPI) to determine a boosting time of the ARCPI is provided. The auxiliary device includes an auxiliary switch path that uses a resonant inductor with at least one saturable inductor. The method includes: calculating, by a processor of the auxiliary device, a first boosting time in the auxiliary switch path based on a theoretical resonance inductance and a voltage that are applied to the resonant inductor; determining, by the processor, a second boosting time in the auxiliary switch path based on a look-up table; and determining, by the processor, the boosting time in the auxiliary switch path based on the first boosting time and the second boosting time. The method further includes controlling, by the processor, boosting current of the ARCPI based on the boosting time in the auxiliary switch path.

    Systems and Methods for Predicting Power Converter Health

    公开(公告)号:US20230229220A1

    公开(公告)日:2023-07-20

    申请号:US17577891

    申请日:2022-01-18

    Applicant: ABB Schweiz AG

    CPC classification number: G06F1/30 G06F11/0793 G06F11/0721

    Abstract: A method for predicting power converter health is provided. The method comprises receiving a plurality of parameter measurements associated with a power converter system comprising a power converter. The plurality of parameter measurements comprises a first set of system measurements and a second set of failure precursor measurements. The method further comprises inputting the first set of system measurements into a first machine learning algorithm to generate expected failure precursor measurement information and inputting the expected failure precursor measurement information and the second set of failure precursor measurements into a second machine learning algorithm to generate component failure prediction information. The method also comprises performing one or more actions based on the generated component failure prediction information.

    Voltage Rate-of-Change Control for Wide-Bandgap-Based Inverter Circuits for Driving Electric Motors

    公开(公告)号:US20230179119A1

    公开(公告)日:2023-06-08

    申请号:US17541784

    申请日:2021-12-03

    Applicant: ABB Schweiz AG

    CPC classification number: H02M7/53875 H02P27/06

    Abstract: An insulated gate field effect transistor (IGFET) based converter circuit is described that includes a direct current input comprising a high voltage input and a low voltage input, an IGFET gate input, and an equivalent phase leg comprising a plurality of parallel-connected cells. The parallel-connected cells each include: a first wide bandgap IGFET having a first drain electrode connected to the high voltage input, a first gate electrode connected to a first gate control input, and a first source electrode; a second wide bandgap IGFET having a second drain electrode connected to the first source electrode, a second gate electrode connected to a second gate control input, and a second source electrode connected to the low voltage input; and a step-inducing inductor coupled to: the first source electrode of the first wide bandgap IGFET, and an output node. The step-inducing inductor is connected to the output node.

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