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1. WO2020200760 - CONVERTER, ARRANGEMENT COMPRISING A CONVERTER AND METHOD FOR OPERATING SAME

Publication Number WO/2020/200760
Publication Date 08.10.2020
International Application No. PCT/EP2020/057263
International Filing Date 17.03.2020
IPC
H02M 7/483 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
483Converters with outputs that each can have more than two voltage levels
CPC
H02M 2007/4835
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
483Converters with outputs that each can have more than two voltages levels
4835comprising a plurality of cells, each including a switchable capacitor, the capacitors having a nominal charge voltage which corresponds to a given fraction of the input voltage, the capacitors being selectively connected in series to determine the instantaneous output voltage
H02M 7/483
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
483Converters with outputs that each can have more than two voltages levels
Applicants
  • SIEMENS AKTIENGESELLSCHAFT [DE]/[DE]
Inventors
  • PIESCHEL, Martin
  • SCHUSTER, Dominik
Priority Data
19166799.702.04.2019EP
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) UMRICHTER, ANORDNUNG MIT EINEM UMRICHTER UND VERFAHREN ZU DEREN BETRIEB
(EN) CONVERTER, ARRANGEMENT COMPRISING A CONVERTER AND METHOD FOR OPERATING SAME
(FR) ONDULEUR, ENSEMBLE COMPRENANT UN ONDULEUR ET PROCÉDÉ POUR LES FAIRE FONCTIONNER
Abstract
(DE)
Die Erfindung bezieht sich unter anderem auf einen Umrichter (2) mit einem Teilkonverter (9), der aufweist: teilkonverteeigene Einspeisedrehstromanschlüsse (L1',L2',L3') zum Anschluss an ein einspeisendes elektrisches Drehstromsystem sowie teilkonvertereigene Ausgabedrehstromanschlüsse (A',B', C'), die ein teilkonvertereigenes Ausgabedrehstromsystem bil- den, und einen teilkonvertereigenen Sternpunktanschluss (X) zum Kontaktieren eines Sternpunkts des teilkonvertereigenen Ausgabedrehstromsystems. Erfindungsgemäß ist vorgesehen, dass der Umrichter (2) zumindest einen weiteren Teilkonverter (9) umfasst, der teilkonvertereigene Einspeisedrehstromanschlüsse (L1',L2',L3'), teilkonvertereigene Ausgabedrehstromanschlüsse (A',B',C'), die ein teilkonvertereigenes Ausgabedrehstromsystem bilden, und einen teilkonvertereigenen Sternpunktanschluss (Y) zum Kontaktieren eines Sternpunkts des teilkonvertereigenen Ausgabedrehstromsystems aufweist, die Teilkonverter (9) bezüglich ihrer teilkonvertereigenen Einspeisedrehstromanschlüsse (L1',L2',L3') parallelgeschaltet sind und die parallelgeschalteten teilkonvertereigenen Einspeisedrehstromanschlüsse (L1',L2',L3') umrichtereigene Einspeisedrehstromanschlüsse (L1,L2,L3) zum Anschluss an ein und dasselbe speisende Drehstromsystem bilden, und die Teilkonverter (9) bezüglich ihrer teilkonvertereigenen Ausgabedrehstromanschlüsse (A',B',C') parallelgeschaltet sind, wobei die Teilkonverter (9) jeweils pro teilkonvertereigenem Einspeisedrehstromanschluss ein Konvertermodul (10) aufweisen und die Konvertermodule (10) jeweils zwei oder mehr elektrisch ausgangsseitig in Reihe geschaltete Submodule (13), einen Transformtor (17) aufweisen.
(EN)
The invention relates, amongst other things, to a converter (2) comprising a partial converter (9) which has: partial converter-specific feed three-phase connections (L1', L2', L3') for connection to a feeding electrical three-phase system and also partial converter-specific output three-phase connections (A', B', C') which form a partial converter-specific output three-phase system, and a partial converter-specific star point connection (X) for making contact with a star point of the partial converter-specific output three-phase system. It is provided according to the invention that the converter (2) comprises at least one further partial converter (9) which has partial converter-specific feed three-phase connections (L1', L2', L3'), partial converter-specific output three-phase connections (A', B', C') which form a partial converter-specific output three-phase system, and a partial converter-specific star point connection (Y) for making contact with a star point of the partial converter-specific output three-phase system, the partial converters (9) are connected in parallel with respect to their partial converter-specific feed three-phase connections (L1', L2', L3') and the partial converter-specific feed three-phase connections (L1', L2', L3') which are connected in parallel form converter-specific feed three-phase connections (L1', L2', L3') for connection to the same feeding three-phase system, and the partial converters (9) are connected in parallel with respect to their partial converter-specific output three-phase connections (A', B', C'), wherein the partial converters (9) each have a converter module (10) for each partial converter-specific feed three-phase connection and the converter modules (10) each have two or more submodules (13) which are connected in series at the output end, and a transformer (17).
(FR)
L’invention concerne, entre autres, un onduleur (2) comprenant un sous-convertisseur (9), lequel présente : des raccordements de courant triphasé d’alimentation (L1',L2',L3’) propres au sous-convertisseur pour le raccord à un système de courant triphasé électrique d’alimentation ainsi que des raccordements de courant triphasé de sortie (A',B', C’) propres au sous-convertisseur, qui forment un système de courant triphasé de sortie propre au sous-convertisseur, et un raccord de point neutre (X) propre au sous-convertisseur pour le contact d’un point neutre du système de courant triphasé de sortie propre au sous-convertisseur. Selon l’invention, l’onduleur (2) comprend au moins un autre sous-convertisseur (9), qui présente des raccordements de courant triphasé d’alimentation (L1',L2',L3’) propres au sous-convertisseur, des raccordements de courant triphasé de sortie (A',B', C’) propres au sous-convertisseur, qui forment un système de courant triphasé de sortie propre au sous-convertisseur, et un raccord de point neutre (X) propre au sous-convertisseur pour le contact d’un point neutre du système de courant triphasé de sortie propre au sous-convertisseur, les sous-convertisseurs (9) sont branchés en parallèle en ce qui concerne leurs raccordements de courant triphasé d’alimentation (L1',L2',L3’) propres aux sous-convertisseurs et les raccordements de courant triphasé d’alimentation (L1',L2',L3’) propres aux sous-convertisseurs branchés en parallèle forment des raccordements de courant triphasé d’alimentation (L1',L2',L3’) propres à l’onduleur pour le raccord au seul et même système de courant triphasé d’alimentation, et les sous-convertisseurs (9) sont branchés en parallèle en ce qui concerne leurs raccordements de courant triphasé de sortie (A',B', C’) propres aux sous-convertisseurs, les sous-convertisseurs (9) présentant respectivement un module de convertisseur (10) par raccordement de courant triphasé d’alimentation et les modules de convertisseur (10) présentant respectivement deux ou plusieurs sous-modules (13) branchés électriquement en série côté sortie, un transformateur (17).
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