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1. WO2020108739 - DEVICE FOR TRANSFORMING A DIRECT CURRENT VOLTAGE

Publication Number WO/2020/108739
Publication Date 04.06.2020
International Application No. PCT/EP2018/082704
International Filing Date 27.11.2018
IPC
H02M 3/155 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
02without intermediate conversion into ac
04by static converters
10using discharge tubes with control electrode or semiconductor devices with control electrode
145using devices of a triode or transistor type requiring continuous application of a control signal
155using semiconductor devices only
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
H02J 3/36 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
3Circuit arrangements for ac mains or ac distribution networks
36Arrangements for transfer of electric power between ac networks via a high-tension dc link
H02M 7/757 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
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
66with possibility of reversal
68by static converters
72using discharge tubes with control electrode or semiconductor devices with control electrode
75using devices of a thyratron or thyristor type requiring extinguishing means
757using semiconductor devices only
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 3/155
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
02without intermediate conversion into ac
04by static converters
10using discharge tubes with control electrode or semiconductor devices with control electrode
145using devices of a triode or transistor type requiring continuous application of a control signal
155using semiconductor devices only
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 7/7575
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
66with possibility of reversal
68by static converters
72using discharge tubes with control electrode or semiconductor devices with control electrode
75using devices of a thyratron or thyristor type requiring extinguishing means
757using semiconductor devices only
7575for high voltage direct transmission link
Applicants
  • SIEMENS AKTIENGESELLSCHAFT [DE]/[DE]
Inventors
  • KAMMERER, Felix
  • PIESCHEL, Martin
Priority Data
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) EINRICHTUNG ZUM ÜBERSETZEN EINER GLEICHSPANNUNG
(EN) DEVICE FOR TRANSFORMING A DIRECT CURRENT VOLTAGE
(FR) DISPOSITIF DE CONVERSION D’UNE TENSION CONTINUE
Abstract
(DE)
Die Erfindung betrifft eine Einrichtung (2), die eine erste Gleichspannung in eine deutlich kleinere zweite Gleichspannung übersetzt, oder umgekehrt, mit einem Gesamtstromrichter (GMMC), der einen ersten und einen zweiten modularen Mehrstufenstromrichter (11, 12) aufweist, die in Reihe geschaltet sind, wobei die erste Gleichspannung an dem ersten Mehrstufenstromrichter (11) und die zweite Gleichspannung an der Reihenschaltung der Mehrstufenstromrichter (11, 12) anliegt. Um die Übersetzung bei einer großen Spannungsdifferenz mit einer geringeren Anzahl an Submodulen zu erzielen, wird vorgeschlagen, dass der erste Mehrstufenstromrichter (11) die erste Gleichspannung in eine dreiphasige erste Wechselspannung überführt, dass ein erster Transformator (T1), der eine erste Wicklung (W1) und eine zweite Wicklung (W2) aufweist und die an der ersten Wicklung (W1) anliegende dreiphasige erste Wechselspannung in eine an der zweiten Wicklung (W2) anliegende einphasige zweite Wechselspannung transformiert, und dass der erste Mehrstufenstromrichter (11) an die erste Wechselspannung und der zweite Mehrstufenstromrichter (12) an die zweite Wechselspannung angeschlossenen sind.
(EN)
The invention relates to a device (2), which transforms a first direct current voltage into a considerably smaller second direct current voltage, or vice versa, with a total power converter (GMMC), which has a first and a second modular multi-stage power converter (11, 12), which are connected in series, wherein the first direct current voltage is applied to the first multi-stage power converter (11) and the second direct current voltage is applied to the series circuit for the multi-stage power converters (11, 12). In order to achieve the transformation at a large voltage difference with a low number of sub-modules, according to the invention: the first multi-stage power converter (11) converts the first direct current voltage into a three-phase first alternating voltage; a first transformer (T1) which has a first winding (W1) and a second winding (W2) transforms the three-phase first alternating voltage applied across the first winding (W1) into a single-phase second alternating voltage applied across the second winding (W2); and the first multi-stage power converter (11) is connected to the first alternating voltage, and the second multi-stage power converter (12) is connected to the second alternating voltage.
(FR)
L’invention concerne un dispositif (2) qui convertit une première tension continue en une seconde tension continue nettement inférieure, ou vice versa. Le dispositif comporte un convertisseur de puissance global (GMMC) qui comporte des premier et second convertisseurs de puissance modulaires à plusieurs niveaux (11, 12), qui sont montés en série. La première tension continue est appliquée au premier convertisseur de puissance à plusieurs niveaux (11) et la seconde tension continue s’applique aux convertisseurs de puissance à plusieurs niveaux (11, 12) montés en série. L’invention vise à convertir avec une grande différence de tension, en utilisant un nombre plus réduit de sous-modules. À cet effet, l’invention propose que le premier convertisseur de puissance à plusieurs niveaux (11) convertisse la première tension continue en une première tension alternative triphasée, qu’un premier transformateur (T1) comporte un premier enroulement (W1) et un second enroulement (W2) et transforme la première tension alternative triphasée appliquée au premier enroulement (W1) en une seconde tension alternative monophasée appliquée au second enroulement (W2), que le premier convertisseur de puissance à plusieurs niveaux (11) soit connecté à la première tension alternative, et que le second convertisseur de puissance à plusieurs niveaux (12) soit connecté à la seconde tension alternative.
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