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1. WO2011000741 - DC/DC CONVERTER COMPRISING AUXILIARY CONVERTER FOR GROUND CURRENT COMPENSATION

Publication Number WO/2011/000741
Publication Date 06.01.2011
International Application No. PCT/EP2010/058817
International Filing Date 22.06.2010
IPC
H02M 3/335 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
3Conversion of dc power input into dc power output
22with intermediate conversion into ac
24by static converters
28using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
325using devices of a triode or a transistor type requiring continuous application of a control signal
335using semiconductor devices only
H02M 7/48 2007.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
42Conversion of dc power input into ac power output without possibility of reversal
44by static converters
48using discharge tubes with control electrode or semiconductor devices with control electrode
CPC
H02M 3/335
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
3Conversion of dc power input into dc power output
22with intermediate conversion into ac
24by static converters
28using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
325using devices of a triode or a transistor type requiring continuous application of a control signal
335using semiconductor devices only
H02M 7/4807
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
42Conversion of dc power input into ac power output without possibility of reversal
44by static converters
48using discharge tubes with control electrode or semiconductor devices with control electrode
4807having a high frequency intermediate AC stage
Applicants
  • SMA SOLAR TECHNOLOGY AG [DE]/[DE] (AllExceptUS)
  • RIGBERS, Klaus [DE]/[DE] (UsOnly)
Inventors
  • RIGBERS, Klaus
Agents
  • REHBERG HÜPPE + PARTNER
Priority Data
09164447.602.07.2009EP
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) DC/DC-WANDLER MIT HILFSWANDLER ZUR ERDSTROMKOMPENSATION
(EN) DC/DC CONVERTER COMPRISING AUXILIARY CONVERTER FOR GROUND CURRENT COMPENSATION
(FR) CONVERTISSEUR CONTINU-CONTINU AVEC CONVERTISSEUR AUXILIAIRE DESTINÉ À COMPENSER LE COURANT DE FUITE
Abstract
(DE)
Bei einem DC/DC-Wandler (5), der eine zwischen Eingangsleitungen (6 und 7) anliegende Eingangsgleichspannung (UE) in eine zwischen Ausgangsleitungen (8 und 9) anliegende Ausgangsgleichspannung (Uz) umwandelt, wobei die Eingangsleitungen (6 und 7) und die Ausgangsleitungen (8 und 9) durch Kapazitäten (Cr1, Cr2), die in alle Wechselstromvorwärts- und -rückflusspfaden (13) geschaltet sind, galvanisch voneinander getrennt sind, ist ein Hilfswandler (17) vorgesehen, der einen über alle Wechselstromvorwärts- und - rückflusspfade (13) abfließenden Strom kompensiert, indem er einen Kompensationsstrompfad (18), der parallel zu allen Wechselstromvorwärts- und -rückflusspfaden (13) verläuft, über zwei getaktete Schalter (S7, S8) wechselweise mit je einer der Eingangsleitungen (6, 7) oder wechselweise mit je einer der Ausgangsleitungen (8 und 9) elektrisch leitend verbindet, wobei der Kompensationsstrompfad (18) auf seiner den getakteten Schaltern (S7, S8) gegenüberliegenden Seite über mindestens eine Verbindungskapazität (Ce) mit einer der Ausgangsleitungen (8, 9) bzw. einer der Eingangsleitungen (6, 7) verbunden ist.
(EN)
In a DC/DC converter (5), which converts an input DC voltage (UE) present between input lines (6 and 7) into an output DC voltage (Uz) present between output lines (8 and 9), wherein the input lines (6 and 7) and the output lines (8 and 9) are galvanically separated from each other by capacitances (Cr1, Cr2), which are switched in all AC current forward and return flow paths (13), an auxiliary converter (17) is provided, which compensates for a current flowing out via all AC current forward and return flow paths (13) by electrically connecting a compensation current path (18), which runs in parallel to all AC current forward and return flow paths (13), by way of two clocked switches (S7, S8) alternately to one of the input lines (6, 7) or alternately to one of the output lines (8 and 9), wherein the compensation current path (18) on the side thereof opposing the clocked switches (S7, S8) is connected, by way of at least one connection capacitance (Ce), to one of the output lines (8, 9) or one of the input lines (6, 7).
(FR)
L'invention concerne un convertisseur continu-continu (5) qui convertit une tension continue d'entrée (UE) appliquée entre des lignes d'entrée (6 et 7) en une tension continue de sortie (Uz) appliquée entre des lignes de sortie (8 et 9). Les lignes d'entrée (6 et 7) et les lignes de sortie (8 et 9) sont isolées galvaniquement l'une de l'autre par des condensateurs (Cr1, Cr2) qui sont montés sur tous les chemins d'aller et de retour de courant alternatif (13). Il est prévu un convertisseur auxiliaire (17) qui compense le courant circulant sur tous les chemins d'aller et de retour de courant alternatif (13) en reliant de manière électriquement conductrice, alternativement avec l'une des lignes d'entrée (6 et 7) ou alternativement avec l'une des lignes de sortie (8 et 9) à l'aide de deux commutateurs cadencés (S7, S8), un trajet de courant de compensation (18) qui est parallèle à tous les chemins d'aller et de retour de courant alternatif (13). Le trajet de courant de compensation (18), du côté opposé aux commutateurs cadencés (S7, S8), est relié à l'une des lignes de sortie (8 et 9) ou à l'une des lignes d'entrée (6 et 7) par l'inermédiaire d'au moins un condesateur de liaison (Ce).
Also published as
Latest bibliographic data on file with the International Bureau