公开(公告)号：US20250105759A1

公开(公告)日：2025-03-27

申请号：US18474807

申请日：2023-09-26

Applicant: ABB Schweiz AG

Inventor： Eddy Aeloiza ,  Weiqiang Chen ,  Goran Mandic

IPC: H02M7/537 ,  H02M1/00 ,  H02M7/48 ,  H03K5/1536

Abstract: A zero voltage detection device may include a voltage divider that scales down a first voltage to a second voltage, a comparator that compare the second voltage to one or more voltage thresholds and outputs a first set of signals indicative of an estimation of the first voltage approaching a zero-voltage instant, the one or more voltage thresholds configured to compensate for a time delay from the voltage divider, a flip flop that obtains the first set of signals and outputs a second set of signals to control a switching operation of a switching device, and a control system that obtains the second set of signals during a defined time window and that forces the switching device to turn on at an end of the defined time window if the second set of signals is not detected to limit turn-on losses.

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

Inventor： Eddy C. Aeloiza ,  Yuxiang Shi ,  Goran Mandic ,  Weiqiang Chen

IPC: H02M7/539 ,  H02M1/00 ,  H02M7/48

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.

公开(公告)号：US20250119069A1

公开(公告)日：2025-04-10

申请号：US18483088

申请日：2023-10-09

Applicant: ABB Schweiz AG

Inventor： Eddy C. Aeloiza ,  Goran Mandic ,  Weiqiang Chen

IPC: H02M7/5387 ,  H02M1/00 ,  H02M1/08 ,  H02M7/5395

Abstract: The present disclosure provides a method, control circuit, and non-transitory computer-readable medium for adjusting a boosting current of an auxiliary resonant commutated pole inverter (ARCPI). The method includes: (1) providing an input to trigger a first counter; (2) triggering a second counter based on determining that the first counter reaches a boosting time of the ARCPI; (3) stopping the second counter based on determining that a detection signal is received, and obtaining a time interval counted by the second counter; and (4) adjusting the boosting current based on determining that the time interval is equal to a sum of a first time and a blanking time.

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

Inventor： Eddy C. Aeloiza ,  Yuxiang Shi ,  Goran Mandic ,  Weiqiang Chen

IPC: H02M7/539 ,  H02M1/00 ,  H02M7/48

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.