公开(公告)号：US11670958B2

公开(公告)日：2023-06-06

申请号：US17421225

申请日：2019-11-22

Applicant: ABB Schweiz AG

Inventor： Simon Walton ,  Sridhar Pulikanti ,  Dustin Murdock ,  Nicholas James Elliott ,  Robert Turner ,  Parthasaradhy Kozhiparambil Kumaran

IPC: H02J9/06 ,  H02J3/00 ,  H02J3/32

CPC classification number: H02J9/062 ,  H02J3/0012 ,  H02J3/32

Abstract: Embodiments of the present disclosure provide an electrical apparatus, a power supply system having the same and a method of manufacturing the electrical apparatus. The electrical apparatus includes a detecting circuit coupled to a generator and configured to detect a frequency of the generator. The electrical apparatus also includes a controller coupled to the detecting circuit and configured to receive a first signal indicating the detected frequency and adjust the frequency of the generator in response to determining that the detected frequency is out of a predetermined frequency range. In this way, an actively controlling of the changing rate of the power to and from generator may be achieved, if the generator frequency exceeds the configured limits.

公开(公告)号：US20230035249A1

公开(公告)日：2023-02-02

申请号：US17758553

申请日：2020-01-09

Applicant: ABB Schweiz AG

Inventor： Sridhar Pulikanti ,  Simon Walton ,  Robert Turner ,  Nicholas James Elliott

IPC: H02J9/06 ,  H02J3/38 ,  H02M1/40

Abstract: Embodiments of present disclosure relate to apparatus and method for flux management in the ZISC based UPS system. The apparatus comprises: a first determining unit configured to determine a first offset flux on a series reactor in the ZISC based UPS system when power quality events occur in a grid connected to the ZISC based UPS system and the ZISC based UPS system operates in a grid-connected mode; and a first resetting unit configured to provide synthetic impedance damping to the series reactor to reset the first offset flux.

公开(公告)号：US20220069615A1

公开(公告)日：2022-03-03

申请号：US17421225

申请日：2019-11-22

Applicant: ABB Schweiz AG

Inventor： Simon Walton ,  Sridhar Pulikanti ,  Dustin Murdock ,  Nicholas James Elliott ,  Robert Turner ,  Parthasaradhy Kozhiparambil Kumaran

IPC: H02J9/06 ,  H02J3/32 ,  H02J3/00

Abstract: Embodiments of the present disclosure provide an electrical apparatus, a power supply system having the same and a method of manufacturing the electrical apparatus. The electrical apparatus includes a detecting circuit coupled to a generator and configured to detect a frequency of the generator. The electrical apparatus also includes a controller coupled to the detecting circuit and configured to receive a first signal indicating the detected frequency and adjust the frequency of the generator in response to determining that the detected frequency is out of a predetermined frequency range. In this way, an actively controlling of the changing rate of the power to and from generator may be achieved, if the generator frequency exceeds the configured limits.