EP 2430736 A1 20120321 - METHOD FOR IDENTIFYING DIRT AND/OR DEW ON COMPONENTS OF A VOLTAGE INTERMEDIATE CIRCUIT CONVERTER
Title (en)
METHOD FOR IDENTIFYING DIRT AND/OR DEW ON COMPONENTS OF A VOLTAGE INTERMEDIATE CIRCUIT CONVERTER
Title (de)
VERFAHREN ZUR IDENTIFIZIERUNG VON VERSCHMUTZUNG UND/ODER BETAUUNG VON BAUELEMENTEN EINES SPANNUNGSZWISCHENKREIS-UMRICHTERS
Title (fr)
PROCÉDÉ DE DÉTECTION DE SALISSURE ET/OU DE CONDENSATION SUR DES COMPOSANTS D'UN CONVERTISSEUR À CIRCUIT INTERMÉDIAIRE DE TENSION
Publication
Application
Priority
- EP 2010051109 W 20100129
- DE 102009021238 A 20090514
Abstract (en)
[origin: WO2010130470A1] The invention relates to a method for identifying dirt and/or dew on components of a voltage intermediate circuit converter. According to the invention, the temporal curve of a partial discharge pulsed current is detected at least during a precharging process of an intermediate circuit capacitor of the voltage intermediate circuit converter comprising at least one capacitor, wherein a frequency spectrum is calculated from said current pulse, and wherein depending of the result, a dirt warning and/or a dew warning is activated. Thus, the degree of dirt and/or dew of said voltage intermediate circuit converter can be determined at least during a charging process of an intermediate circuit capacitor of a voltage intermediate circuit converter, thereby preventing a breakdown including the consequences thereof.
IPC 8 full level
H02M 1/32 (2007.01)
CPC (source: EP US)
H02M 1/32 (2013.01 - EP US)
Citation (search report)
See references of WO 2010130470A1
Designated contracting state (EPC)
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 SE SI SK SM TR
DOCDB simple family (publication)
DE 102009021238 A1 20101118; BR PI1010984 A2 20180306; CN 102422515 A 20120418; CN 102422515 B 20151014; EP 2430736 A1 20120321; RU 2011150818 A 20130620; RU 2526372 C2 20140820; US 2012105235 A1 20120503; US 8786450 B2 20140722; WO 2010130470 A1 20101118
DOCDB simple family (application)
DE 102009021238 A 20090514; BR PI1010984 A 20100129; CN 201080021134 A 20100129; EP 10705319 A 20100129; EP 2010051109 W 20100129; RU 2011150818 A 20100129; US 201013320326 A 20100129