EP 1364451 A1 20031126 - A CONVERTER APPARATUS AND A METHOD FOR CONTROL THEREOF
Title (en)
A CONVERTER APPARATUS AND A METHOD FOR CONTROL THEREOF
Title (de)
WANDLERVORRICHTUNG UND VERFAHREN ZU IHRER STEUERUNG
Title (fr)
APPAREIL CONVERTISSEUR ET SON PROCEDE DE COMMANDE
Publication
Application
Priority
- SE 0200056 W 20020115
- SE 0100331 A 20010205
Abstract (en)
[origin: WO02063757A1] In an apparatus for converting alternating voltage to direct voltage and conversely with a series connection of at least four units (1-4) each comprising a semiconductor device (10-13) of turn-off type and a diode (14-17) connected in anti-parallel therewith between two poles of a diode voltage side, a flying capacitor (25) is connected between two outer midpoints (24, 26) between two units of the series connection, while the midpoint of the series connection is connected to an alternating voltage phase line (19). An arrangement (27) is adapted to control the units (1-4) for transferring the apparatus between a main operation mode and an alternative operation mode depending upon function parameters of the apparatus. The semiconductor devices of the outer units (1, 4) are then kept continuously turned on in the alternative operation mode and only semiconductor devices of the inner units (2, 3) are then switched. The control arrangement (27) controls the voltage of the pulses on the phase output (18) of the apparatus to be lower in the alternative operation mode.
IPC 1-7
IPC 8 full level
H02M 7/48 (2007.01); H02M 7/483 (2007.01); H02M 7/487 (2007.01)
CPC (source: EP US)
H02M 7/483 (2013.01 - EP US); H02M 7/4837 (2021.05 - EP US)
Citation (search report)
See references of WO 02063757A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 02063757 A1 20020815; EP 1364451 A1 20031126; SE 0100331 D0 20010205; SE 0100331 L 20020806; SE 520840 C2 20030902
DOCDB simple family (application)
SE 0200056 W 20020115; EP 02740064 A 20020115; SE 0100331 A 20010205