公开(公告)号：US12074531B2

公开(公告)日：2024-08-27

申请号：US17840790

申请日：2022-06-15

Applicant: ABB Schweiz AG

Inventor： Mario Schweizer ,  Ivan Furlan ,  Nicola Notari

IPC: H02M1/08 ,  H02M5/458 ,  H03L7/08

CPC classification number: H02M5/458 ,  H02M1/08 ,  H03L7/08

Abstract: A converter system includes a rectifier, a DC link stage and an inverter connected in series. A control unit includes a slow reference frame angle determination unit that generates a slow reference frame angle θr,slow representing an angle that is slowly following a grid phase deviation, and a fast Phase Locked Loop generating a fast reference frame angle θr,fast representing an angle that is fast following a grid phase deviation. The control unit uses the slow reference frame angle θr,slow and the fast reference frame angle θr,fast to control the rectifier output current, and the fast reference frame angle θr,fast to control the inverter output voltage and to synchronize the inverter output voltage with the grid voltage.

公开(公告)号：US11500033B2

公开(公告)日：2022-11-15

申请号：US16736353

申请日：2020-01-07

Applicant: ABB Schweiz AG

Inventor： Daniel Aggeler ,  Esa-Kai Paatero ,  Ivan Furlan ,  Nicola Notari ,  Yannick Maret

IPC: G01R31/52 ,  H02J9/06 ,  G01R31/385 ,  G01R31/389

Abstract: The present invention provides a method for detecting a ground fault in a battery of a uninterrupted power supply, the battery includes at least one string with multiple battery cells, the method including the steps of defining multiple individual battery blocks of battery cells along the at least one string, performing an reference impedance measurement for the multiple individual battery blocks at a first point of time, performing a verification impedance measurement for the multiple individual battery blocks at a second point of time, evaluating a change of measured impedance between the reference impedance and the verification impedance for the multiple individual battery blocks of the at least one string, and identifying a ground fault based on a correlated change of measured impedance of the multiple individual battery blocks along the at least one string. The present invention also provides a battery management system for managing a battery of a uninterrupted power supply, which is adapted to perform the above method. The present invention further provides a UPS device and a UPS system, each of which including an above battery management system.

公开(公告)号：US20220407430A1

公开(公告)日：2022-12-22

申请号：US17840790

申请日：2022-06-15

Applicant: ABB Schweiz AG

Inventor： Mario Schweizer ,  Ivan Furlan ,  Nocola Notari

IPC: H02M5/458 ,  H02M1/08 ,  H03L7/08

Abstract: A converter system includes a rectifier, a DC link stage and an inverter connected in series. A control unit includes a slow reference frame angle determination unit that generates a slow reference frame angle θr,slow representing an angle that is slowly following a grid phase deviation, and a fast Phase Locked Loop generating a fast reference frame angle θr,fast representing an angle that is fast following a grid phase deviation. The control unit uses the slow reference frame angle θr,slow and the fast reference frame angle θr,fast to control the rectifier output current, and the fast reference frame angle θr,fast to control the inverter output voltage and to synchronize the inverter output voltage with the grid voltage.

公开(公告)号：US11289940B2

公开(公告)日：2022-03-29

申请号：US14301516

申请日：2014-06-11

Applicant: ABB Schweiz AG

Inventor： Lorenzo Giuntini ,  Ivan Furlan

IPC: H02J9/06 ,  H02J3/18 ,  H02J3/32 ,  H02J9/04

Abstract: A multi-mode uninterruptible power supply (UPS) is provided. The multi-mode UPS includes a first path including a rectifier and an inverter, and a second path in parallel with the first path, wherein the multi-mode UPS is operable in an economy mode in which power flows from a utility to a load through the second path while at least one of the rectifier and the inverter is activated, the at least one of the rectifier and the inverter operable to perform at least one of DC voltage regulation, reactive power compensation, and active damping.

公开(公告)号：US20180054084A1

公开(公告)日：2018-02-22

申请号：US15671885

申请日：2017-08-08

Applicant: ABB Schweiz AG

Inventor： Esa-Kai Paatero ,  Nicola Notari ,  Ivan Furlan

IPC: H02J9/06

Abstract: The present application contemplates a power installation including an uninterruptible power supply system and a user installation, wherein the user installation includes a load, at least one AC power source, at least one secondary power supply, at least one controllable hardware component, and a system Protective Earth, the uninterruptible power supply system includes—at least one uninterruptible power supply module, and a control device for controlling the uninterruptible power supply system based on at least one system parameter of the uninterruptible power supply system, wherein the at least one uninterruptible power supply system is connected between the at least one AC power source, the at least one secondary power supply, and the load, the power installation further includes at least one installation control assembly including an assembly controller, and at least one measurement device connected to the assembly controller, wherein the installation control assembly is galvanically referenced to system Protective Earth, and the assembly controller performs a control of the uninterruptible power supply system and the at least one controllable hardware component based on measurement signals received from the at least one measurement device.