公开(公告)号：US11183322B2

公开(公告)日：2021-11-23

申请号：US15958220

申请日：2018-04-20

Applicant: ABB Schweiz Ag

Inventor： Harish Suryanarayana ,  Jiaqi Liang ,  Jukka Pekka Kittila ,  Wen Ouyang

IPC: H01F3/14 ,  H01F27/28 ,  H01F29/14 ,  H01F27/24 ,  H01F21/08

Abstract: Unique systems, methods, techniques and apparatuses for a ZVT ZCT resonant converter with a variable resonant tank are disclosed. One exemplary embodiment is a system comprising a bidirectional resonant converter comprising an input/output terminal, a switching device coupled with the input/output terminal, a resonant circuit coupled with the switching device and including a variable inductor, an output/input terminal coupled with the resonant circuit, and a DC biasing circuit operatively coupled with the variable inductor. The variable inductor comprises a toroidal core, a first winding wound around the toroidal core and coupled with the switching device and the output/input terminal, a second core structured to overlap a portion of the toroidal core, and a second winding wound around the second core and coupled with the DC biasing circuit. The DC biasing circuit is controllable to vary the inductance of the variable inductor by saturating a portion of the toroidal core.

公开(公告)号：US20250062611A1

公开(公告)日：2025-02-20

申请号：US18449309

申请日：2023-08-14

Applicant: ABB Schweiz AG

Inventor： Moein Choobineh ,  Harish Suryanarayana ,  Aniket M. Joshi ,  Jacob T. Miscio

IPC: H02J3/00

Abstract: A method of handling one or more errors in a microgrid includes measuring an attribute of a device within the microgrid for a measurement cycle and comparing the measured attribute of the device with a predetermined threshold attribute value. The presence of an error associated with the device is detected based on the comparison of the measured attribute with the predetermined threshold attribute value. An error signal is created that includes a numerical sequence having at least three digits, the numerical sequence identifying the measured attribute and the device within the microgrid.

公开(公告)号：US20250047133A1

公开(公告)日：2025-02-06

申请号：US18363375

申请日：2023-08-01

Applicant: ABB Schweiz AG

Inventor： Aniket M. Joshi ,  Jacob T. Miscio ,  Moein Choobineh ,  Harish Suryanarayana

IPC: H02J13/00 ,  H02J3/14

Abstract: A method of monitoring a microgrid includes receiving a plurality of inputs, using a state machine to determine an output based on the plurality of inputs, and outputting a control signal based on the output. The plurality of inputs include a microgrid-side voltage measurement and a microgrid-side frequency measurement. The control signal is configured to control operation of the microgrid at a point of common coupling between the microgrid and a utility grid.

公开(公告)号：US20240291859A1

公开(公告)日：2024-08-29

申请号：US18176087

申请日：2023-02-28

Applicant: ABB Schweiz AG

Inventor： Harish Suryanarayana ,  David Lee Coats

IPC: H04L9/40 ,  B60L53/62

CPC classification number: H04L63/1466 ,  B60L53/62

Abstract: In one aspect, a controller for detecting erroneous data generated at an electric vehicle charging station (EVCS) is provided. The EVCS includes a plurality of electric vehicle supply equipment (EVSE) for charging electric vehicles. The controller is configured to store a plurality of data models that predict a current at a point of common coupling (PCC) drawn by the EVCS from a utility, where each of the plurality of data models ignores measurements from a different one of the plurality of EVSEs, generate a plurality of predicted current values, each generated using a different one of plurality of data models, measure an actual current value at the PCC, calculate a plurality of difference values, each comprising a difference between one of the predicted current values and the actual current value, and determine whether the erroneous data is being generated based on the plurality of difference values.

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

Inventor： Harish Suryanarayana ,  Goran Mandic ,  Eddy C. Aeloiza

IPC: G06F1/30 ,  G06F11/07

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.

公开(公告)号：US20230115739A1

公开(公告)日：2023-04-13

申请号：US17500553

申请日：2021-10-13

Applicant: ABB Schweiz AG

Inventor： Harish Suryanarayana ,  Li Qi ,  Taosha Jiang ,  Yuzhi Zhang ,  Silvio Colombi

IPC: H01M8/04225 ,  H02J9/06 ,  H05K7/14 ,  H01M8/04228

Abstract: A system includes: a ring bus; a plurality of static uninterruptible power supplies (UPSs), each static UPS of the plurality of static UPSs including: at least one battery; an input that is electrically connected to a first external electrical power source; and an output that is electrically connected to a load, and, via a first corresponding choke, to the ring bus; at least one fuel-cell interface converter (FIC) that converts direct current (DC) electrical power to alternating current (AC) electrical power, each FIC of the at least one FIC being electrically connected to the ring bus via a second corresponding choke; and a fuel cell module corresponding to and electrically connected to each FIC, the fuel cell module including a fuel cell.

公开(公告)号：US10348093B2

公开(公告)日：2019-07-09

申请号：US15378679

申请日：2016-12-14

Applicant: ABB Schweiz AG

Inventor： Harish Suryanarayana ,  Hongrae Kim ,  Sara Ahmed ,  Peter Steimer ,  Philippe Maibach ,  Hans Krattiger ,  Silverio Alvarez ,  Paolo Casini ,  Jiuping Pan

IPC: H02J1/10 ,  H02J3/38 ,  H02H7/26

Abstract: Unique systems, methods, techniques and apparatuses of a power collection system are disclosed herein. One exemplary embodiment is an MVDC collection system coupled to a utility grid including a collection bus, a plurality of branches coupled to the collection bus, and a branch controller. Each of the plurality of branches include a semiconductor switch coupled to the collection bus, and a DC/DC converter coupled to the semiconductor switch and an LVDC power source. The branch controller configured to determine a fault condition is occurring within the MVDC collection system, determine the location of the fault condition, and isolate the fault condition using at least one of the semiconductor switches and the DC/DC converters.

公开(公告)号：US20190173388A1

公开(公告)日：2019-06-06

申请号：US15832283

申请日：2017-12-05

Applicant: ABB Schweiz AG

Inventor： Harish Suryanarayana

IPC: H02M3/335 ,  H02M7/48

CPC classification number: H02M3/33592 ,  H02M3/33546 ,  H02M3/33569 ,  H02M7/48 ,  H02M2001/0048 ,  H02M2001/0058 ,  H02M2007/4811 ,  H02M2007/4815

Abstract: Unique systems, methods, techniques and apparatuses of a power converter are disclosed. One exemplary embodiment is a resonant power converter comprising a DC bus, a primary leg, an auxiliary leg, and an LC resonant circuit. The auxiliary leg is coupled between DC bus and includes a first auxiliary switch and a second auxiliary switch coupled at an auxiliary midpoint connection. The LC resonant circuit includes an air-core resonant inductor and a resonant capacitor coupled between the auxiliary midpoint connection and a primary midpoint connection of the primary leg. A controller is structured to control the first and second auxiliary switch and the first and second primary switch so as to provide resonant operation of the LC resonant circuit effective to provide a substantially zero voltage condition across the first and second primary switch while toggling the switches.

公开(公告)号：US20180166881A1

公开(公告)日：2018-06-14

申请号：US15378679

申请日：2016-12-14

Applicant: ABB Schweiz AG

Inventor： Harish Suryanarayana ,  Hongrae Kim ,  Sara Ahmed ,  Peter Steimer ,  Philippe Maibach ,  Hans Krattiger ,  Silverio Alvarez ,  Paolo Casini ,  Jiuping Pan

IPC: H02J3/38 ,  H02M3/24 ,  H02M7/44

CPC classification number: H02J3/383 ,  H02H7/268 ,  Y02E10/563

Abstract: Unique systems, methods, techniques and apparatuses of a power collection system are disclosed herein. One exemplary embodiment is an MVDC collection system coupled to a utility grid including a collection bus, a plurality of branches coupled to the collection bus, and a branch controller. Each of the plurality of branches include a semiconductor switch coupled to the collection bus, and a DC/DC converter coupled to the semiconductor switch and an LVDC power source. The branch controller configured to determine a fault condition is occurring within the MVDC collection system, determine the location of the fault condition, and isolate the fault condition using at least one of the semiconductor switches and the DC/DC converters.