EP 4115511 A1 20230111 - CONVERTER ASSEMBLY
Title (en)
CONVERTER ASSEMBLY
Title (de)
UMRICHTERANORDNUNG
Title (fr)
ENSEMBLE CONVERTISSEUR
Publication
Application
Priority
- AT 501732020 A 20200305
- AT 2021060079 W 20210305
Abstract (en)
[origin: WO2021174280A1] The invention relates to a converter assembly for converting a DC voltage from a DC voltage source, e.g. a battery, a fuel cell or a DC voltage intermediate circuit, into an N-phase AC voltage, e.g. for supplying an N-phase electric machine, comprising a connected inverter unit (1) having a number M of electronically controllable half bridges (2, 2', 2a, 2a', 2b, 2b') for each of the N phases, wherein M is greater than one, a control unit (3) controlling the half bridges (2, 2', 2a, 2a', 2b, 2b'), which is designed to activate the half bridges (2, 2', 2a, 2a', 2b, 2b') in a phase-offset manner with a switching frequency fT, wherein the phases are connected to a respective winding (5, 5', 5") of a common-mode choke (10) by a common magnetic core for damping electrical common-mode interference, and wherein the outputs of the half bridges (2, 2', 2a, 2a', 2b, 2b'), supplying said phases, are interconnected via interleaving chokes (4, 4', 4a, 4a', 4b, 4b'), wherein a first resistance-damped capacitor circuit (6) is provided at the output of the interleaving chokes (4, 4', 4a, 4a', 4b, 4b') forming a first LC filter stage (8), and a second resistance-damped capacitor circuit (7) is provided at the output of the common-mode choke (5, 5', 5") forming a second LC filter stage (9).
IPC 8 full level
H02M 1/12 (2006.01); H02M 1/15 (2006.01); H02M 7/493 (2007.01); H02M 7/5387 (2007.01)
CPC (source: AT EP KR US)
G05F 1/253 (2013.01 - AT KR); H02M 1/0043 (2021.05 - KR US); H02M 1/123 (2021.05 - US); H02M 1/126 (2013.01 - AT EP KR US); H02M 1/15 (2013.01 - EP KR); H02M 7/493 (2013.01 - EP KR); H02M 7/5387 (2013.01 - AT KR US); H02M 7/53871 (2013.01 - EP); H02M 1/0043 (2021.05 - EP)
Citation (search report)
See references of WO 2021174280A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2021174280 A1 20210910; AT 523576 A1 20210915; CN 115211010 A 20221018; EP 4115511 A1 20230111; JP 2023516599 A 20230420; KR 20220151642 A 20221115; US 11863085 B2 20240102; US 2023106145 A1 20230406
DOCDB simple family (application)
AT 2021060079 W 20210305; AT 501732020 A 20200305; CN 202180018693 A 20210305; EP 21712402 A 20210305; JP 2022551028 A 20210305; KR 20227034300 A 20210305; US 202117909046 A 20210305