EP 3326286 A1 20180530 - METHOD FOR OPERATING A FREQUENCY CONVERTER AND FREQUENCY CONVERTER
Title (en)
METHOD FOR OPERATING A FREQUENCY CONVERTER AND FREQUENCY CONVERTER
Title (de)
VERFAHREN ZUM BETREIBEN EINES FREQUENZUMRICHTERS UND FREQUENZUMRICHTER
Title (fr)
PROCÉDÉ POUR FAIRE FONCTIONNER UN CONVERTISSEUR DE FRÉQUENCE ET CONVERTISSEUR DE FRÉQUENCE
Publication
Application
Priority
- DE 102015213648 A 20150720
- EP 2016067182 W 20160719
Abstract (en)
[origin: WO2017013117A1] The invention relates to a method for operating a frequency converter which is designed for controlling a rotary current motor, wherein the frequency converter comprises three half-bridges, each having at least two switching means. The method comprises the steps of: - generating three phase voltages for the rotary current motor by means of pulse width modulation, wherein different switching patterns of the switching means are activated for pulse width modulation, wherein specific star point voltages are reached for different groups of switching patterns, - wherein only those switching pattern are activated in at least one operating state of the frequency converter within a respective period (TP) of the pulse width modulation, which reach an identical star point voltage.
IPC 8 full level
H02P 27/08 (2006.01); H02M 7/5387 (2007.01)
CPC (source: EP US)
H02M 7/53875 (2013.01 - EP US); H02M 7/53876 (2021.05 - EP); H02P 27/08 (2013.01 - EP US); H02P 27/14 (2013.01 - US); H02M 1/123 (2021.05 - EP); H02M 1/44 (2013.01 - EP); H02M 7/53876 (2021.05 - US); H02P 2209/13 (2013.01 - EP US)
Citation (search report)
See references of WO 2017013117A1
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
DOCDB simple family (publication)
DE 102015213648 A1 20170126; CN 107852126 A 20180327; CN 107852126 B 20210326; EP 3326286 A1 20180530; US 10910956 B2 20210202; US 2018219493 A1 20180802; WO 2017013117 A1 20170126
DOCDB simple family (application)
DE 102015213648 A 20150720; CN 201680042856 A 20160719; EP 16751189 A 20160719; EP 2016067182 W 20160719; US 201615746738 A 20160719