公开(公告)号：WO2018146174A1

公开(公告)日：2018-08-16

申请号：PCT/EP2018/053128

申请日：2018-02-08

Applicant: ABB SCHWEIZ AG

Inventor： MARET, Yannick ,  AGGELER, Daniel ,  PAATERO, Esa-Kai ,  ZURFLUH, Franz ,  FURLAN, Ivan ,  NOTARI, Nicola

IPC: G01R31/36

CPC classification number: G01R31/389 ,  G01R31/3842 ,  G01R31/392 ,  G01R31/396

Abstract: The present invention provides a method for monitoring a battery (22) connected to a UPS device (10), the UPS device (10) comprising a central DC link (12), a power supply side AC/DC converter (14), a power supply side DC/DC converter (16), and a load side output converter (18), whereby all converters (14, 16, 18) are connected to the DC link (12), and the DC/DC converter (16) is connected to the battery (22) at its power supply side, comprising the steps of generating at least one current pulse (42) through the battery (22) using the DC/DC converter (16), measuring a voltage and current across the battery (22) as response to the at least one current pulse (42), and determining at least one battery parameter based on the voltage and current measured across the battery (22) as response to the at least one current pulse (42). The present invention also provides a UPS device (10) comprising a central DC link (12), a power supply side AC/DC converter (14), a power supply side DC/DC converter (16), and a load side output converter (18), whereby all converters (14, 16, 18) are connected to the DC link (12), and the DC/DC converter (16) is connected to the battery (22) at its power supply side, wherein the UPS device (10) is adapted to perform the above method.

公开(公告)号：WO2019011848A1

公开(公告)日：2019-01-17

申请号：PCT/EP2018/068525

申请日：2018-07-09

Applicant: ABB SCHWEIZ AG

Inventor： AGGELER, Daniel ,  PAATERO, Esa-Kai ,  FURLAN, Ivan ,  NOTARI, Nicola ,  MARET, Yannick

IPC: G01R31/02

Abstract: The present invention provides a method for detecting a ground fault (60) in a battery (22) of a uninterrupted power supply (10, 40), the battery (22) comprises at least one string (26) with multiple battery cells, the method comprising the steps of defining multiple individual battery blocks (28) of battery cells along the at least one string (26), performing an reference impedance measurement for the multiple individual battery blocks (28) at a first point of time, performing a verification impedance measurement for the multiple individual battery blocks (28) 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 (28) of the at least one string (26), and identifying a ground fault (60) based on a correlated change of measured impedance of the multiple individual battery blocks (28) along the at least one string (26). The present invention also provides a battery management system (36) for managing a battery (22) of a uninterrupted power supply (10, 40), which is adapted to perform the above method. The present invention further provides a UPS device (10) and a UPS system (40), each of which comprising an above battery management system (36).

公开(公告)号：EP2812971B1

公开(公告)日：2017-11-01

申请号：EP13700778.7

申请日：2013-01-22

Applicant: ABB Schweiz AG

Inventor： AGGELER, Daniel ,  CANALES, Francisco ,  PAPAFOTIOU, Georgios ,  LI, Tin Ho ,  APELDOORN, Oscar

IPC: H02J1/10 ,  H02J7/02

CPC classification number: H02J7/007 ,  B60L11/1824 ,  B60L11/1842 ,  B60L11/1844 ,  B60L2210/00 ,  B60L2230/10 ,  H02J1/102 ,  H02J7/0027 ,  H02J7/0052 ,  H02J7/02 ,  H02J2007/0059 ,  Y02E60/721 ,  Y02T10/7005 ,  Y02T10/7055 ,  Y02T10/7088 ,  Y02T90/121 ,  Y02T90/127 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/163 ,  Y04S10/126