EP 2671311 A1 20131211 - METHOD AND CIRCUITS FOR COMMON MODE CURRENT DEPRESSION IN 3 PHASE TRANSFORMERLESS PV INVERTER
Title (en)
METHOD AND CIRCUITS FOR COMMON MODE CURRENT DEPRESSION IN 3 PHASE TRANSFORMERLESS PV INVERTER
Title (de)
VERFAHREN UND SCHALTUNGEN FÜR GLEICHTAKTSTROMUNTERDRÜCKUNG BEI EINEM 3-PHASIGEN TRANSFORMATORLOSEN PV-WECHSELRICHTER
Title (fr)
PROCÉDÉ ET CIRCUITS POUR SUPPRESSION DE COURANT DE MODE COMMUN DANS ONDULEUR PV SANS TRANSFORMATEUR TRIPHASÉ
Publication
Application
Priority
- HU P1102617 A 20110204
- KR 2011005697 W 20110803
Abstract (en)
[origin: WO2012105737A1] The DC energy is provided by A string which output 1is connected to B well known boost terminal 1and A string terminal 2 is connected B boost terminal 2. The increased voltage from B boost output terminal 3 and 4 is connected to the well-known D inverter terminal 1 and 2. D inverter R,S,T outputs go through the E RCD ring and connected to the F utility grid terminal R,S,T. A string terminal 1 connected to C1 stray capacitance while terminal 2 is connected to C2 stray capacitance while C1 nad C2 stray capacitance other terminal are connected to the ground (earth) potential. E RCD terminal 1 connects to H filter and G comparator terminal 1, while H filter terminal 2 connects to I modifier terminal 1. I modifier terminal 2 connects J controller terminal 2 while J controller terminal 1 connects to K PWM terminal 3. K PWM terminal 1 connects to B boost terminal 5 while K PWM terminal 2 connects to D inverter terminal 3.
IPC 8 full level
CPC (source: EP US)
H02J 3/381 (2013.01 - EP US); H02M 1/12 (2013.01 - EP US); H02M 1/32 (2013.01 - EP); H02J 2300/24 (2020.01 - EP US); Y02E 10/56 (2013.01 - EP)
Citation (search report)
See references of WO 2012105737A1
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
DOCDB simple family (publication)
DOCDB simple family (application)
KR 2011005697 W 20110803; EP 11857825 A 20110803