公开(公告)号：EP2722724B1

公开(公告)日：2017-10-11

申请号：EP12188646.9

申请日：2012-10-16

Applicant: ABB Schweiz AG

Inventor： Pulli, Tuomas ,  Hellberg, Janne

IPC: G05F5/00 ,  G05F1/67 ,  H02J3/38

CPC classification number: G05F5/00 ,  G05F1/67 ,  H02J3/385 ,  Y02E10/58

公开(公告)号：EP3866302A1

公开(公告)日：2021-08-18

申请号：EP20157049.6

申请日：2020-02-13

Applicant: ABB Schweiz AG

Inventor： Juvonen, Linda ,  Hellberg, Janne ,  Koivula, Ville

IPC: H02J7/34 ,  H02M1/36

Abstract: A method and an arrangement for charging a capacitive circuit connected to an electric power converter (10), the arrangement comprising charging means (R1, R2, S3) configured to provide a charging current to the capacitive circuit (C), and control means (100) configured to detect, during the charging, a first value and a second value of a charging current of the capacitive circuit (C) or a quantity indicative thereof, such that the second value is detected after a predetermined period of time from the detecting of the first value, compare the second value with the first value; and control the charging means (R1, R2, S3) to stop the charging of the capacitive circuit (C) in response to the first value and the second value differing from each other by less than a predetermined current difference threshold.

公开(公告)号：EP2722959B1

公开(公告)日：2019-06-26

申请号：EP12188659.2

申请日：2012-10-16

Applicant: ABB Schweiz AG

Inventor： Uusimäki, Jari ,  Hyttinen, Jarkko ,  Hellberg, Janne

IPC: H02J3/38

公开(公告)号：EP2670033B1

公开(公告)日：2018-09-26

申请号：EP12169788.2

申请日：2012-05-29

Applicant: ABB Schweiz AG

Inventor： Kokkonen, Jesse ,  Hellberg, Janne ,  Uusimäki, Jari

IPC: H02M1/36 ,  H02J3/38 ,  H01L31/02

CPC classification number: G01R31/2607 ,  H02J3/383 ,  H02M1/36 ,  H02S50/10 ,  Y02E10/563

Abstract: A method and an arrangement of determining starting conditions of a solar converter in a photovoltaic system, the photovoltaic system comprising a photovoltaic panel system having one or more photovoltaic panels, the method comprising determining the open circuit voltage of the photovoltaic panel system, determining beforehand limit values for the starting conditions, the limit values comprising an open circuit voltage value and a temperature value, with which values the solar converter can be started, determining beforehand the temperature dependency of the open circuit voltage of the panel system, determining the temperature of the panel system, setting criteria for starting the converter, the criterion comprising determining, by using the determined temperature dependency and the known starting conditions, whether the determined temperature and the determined open circuit voltage enable the starting of the converter.