公开(公告)号：US20180138734A1

公开(公告)日：2018-05-17

申请号：US15566988

申请日：2016-03-04

Applicant: ABB Schweiz AG

Inventor： Andrea Bianco ,  Andrea Ricci ,  Gabriele Valentino De Natale ,  Marco Testa

IPC: H02J7/04 ,  H02J7/02 ,  H02J7/06 ,  H02M3/155

CPC classification number: H02J7/045 ,  H02J7/0052 ,  H02J7/022 ,  H02J7/06 ,  H02J7/345 ,  H02J2007/0059 ,  H02M3/155 ,  H02M2003/1557

Abstract: An electronic charger for electric power distribution installations is provided. The electronic charger includes a DC/DC converter of the SEPIC type including an input stage, an output stage and a coupling capacitor. The input stage is electrically connected with input terminals and includes an input inductor and a switching device. The output stage is electrically connected with output terminals and includes an output inductor, an output capacitor and a blocking device. The coupling capacitor is configured to electrically couple the input stage and the output stage with a capacitive coupling. A first sensor provides a first sensing signal indicative of a charging current. A first controller receives the first sensing signal and a reference signal and provides a driving signal to control the switching device.

公开(公告)号：US20170250042A1

公开(公告)日：2017-08-31

申请号：US15512797

申请日：2015-08-05

Applicant: ABB Schweiz AG

Inventor： Andrea Bianco ,  Gabriele Valentino De Natale ,  Andrea Ricci ,  Marco Testa

IPC: H01H47/00 ,  G01R31/327 ,  H01H50/20 ,  H01H47/02 ,  H01H50/54 ,  H01H50/44

CPC classification number: H01H47/002 ,  G01R31/3274 ,  H01F2007/1855 ,  H01H47/02 ,  H01H50/20 ,  H01H50/44 ,  H01H50/54

Abstract: A method for determining the operating status of a MV switching device (1), which comprises one or more electric poles, each comprising a movable contact and a fixed, contact adapted to be coupled or uncoupled during the switching operations of said switching device, and an electromagnetic actuator comprising a magnetic core, a test coil wound around said magnetic core and a movable plunger operatively coupled to the movable contact of each electric pole. The method comprises: providing a test signal (ST) to said test coil for an observation period of time (TO), said test signal having a waveform adapted to excite said magnetic core; obtaining measuring data (VM, IM) indicative of the voltage at the terminals of said test coil and of the current circulating along said test coil during said observation period of time; calculating observation data (RN, IM) indicative of the electric behaviour of said test coil at the end of said observation period of time on the base of said measuring data; selecting at least a transformation function (F1, F2) indicative of the electromagnetic behaviour of said electromagnetic actuator; and calculating first estimation data (P, T) indicative of the operating status of said electromagnetic actuator on the base of said observation data (RN, LN) by using said transformation function, said first estimation data comprising, a first estimation value (P) indicative of the position of the movable plunger of said electromagnetic actuator.