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1. WO2020007516 - IMPROVED MODULAR MULTILEVEL CONVERTER

Publication Number WO/2020/007516
Publication Date 09.01.2020
International Application No. PCT/EP2019/060495
International Filing Date 24.04.2019
IPC
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
M
APPARATUS 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
7
Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
42
Conversion of dc power input into ac power output without possibility of reversal
44
by static converters
48
using discharge tubes with control electrode or semiconductor devices with control electrode
483
Converters with outputs that each can have more than two voltage levels
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
M
APPARATUS 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
7
Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
42
Conversion of dc power input into ac power output without possibility of reversal
44
by static converters
48
using discharge tubes with control electrode or semiconductor devices with control electrode
483
Converters with outputs that each can have more than two voltage levels
49
Combination of the output voltage waveforms of a plurality of converters
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
M
APPARATUS 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
7
Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
42
Conversion of dc power input into ac power output without possibility of reversal
44
by static converters
48
using discharge tubes with control electrode or semiconductor devices with control electrode
497
sinusoidal output voltages being obtained by combination of several voltages being out of phase
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
P
CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS OR REACTORS OR CHOKE COILS
27
Arrangements or methods for the control of ac-motors characterised by the kind of supply voltage
04
using variable-frequency supply voltage, e.g. inverter or converter supply voltage
06
using dc to ac converters or inverters
08
with pulse width modulation
14
with three or more levels of voltage
H02M 7/483 (2007.01)
H02M 7/49 (2007.01)
H02M 7/497 (2007.01)
H02P 27/14 (2006.01)
CPC
H02M 2007/4835
H02M 7/483
H02M 7/49
H02M 7/497
H02P 27/14
Applicants
  • ABB SCHWEIZ AG [CH/CH]; Brown Boveri Strasse 6 5400 Baden, CH
Inventors
  • OKAZAKI, Yuhei; SE
  • ILVES, Kalle; SE
  • BAKAS, Panagiotis; SE
  • SHUKLA, Anshuman; SE
Agents
  • KRANSELL & WENNBORG KB; SE
Priority Data
1850857-206.07.2018SE
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVED MODULAR MULTILEVEL CONVERTER
(FR) CONVERTISSEUR MODULAIRE À PLUSIEURS NIVEAUX AMÉLIORÉ
Abstract
(EN)
A voltage source converter comprises a number of converter modules, one for each phase of an AC waveshape to be generated, connected between two DC terminals and each comprising a first and a second DC connection point (DCCP1, DCCP2), a string of director switches (S1, S2), the midpoint of which provides a third connection point (CP3), and waveshaper branches (WSB1, WSB2) connected in parallel with each other as well as to the string, each waveshaper branch (WSB1, WSB2) comprising submodules (SMA1, SMA2, SMA3, SMA4, SMB1, SMB2, SMB3, SMB4) and being connected to an AC connection point (ACCP1, ACCP2) provided for the branch, wherein at least one of the AC connection point and the third connection point is provided for connection to a corresponding phase of an AC link, the first and second waveshaper branches produce two similar waveshapes for the AC link and the switches change the way the waveshapes are applied to connection points.
(FR)
L'invention concerne un convertisseur de source de tension comprenant un certain nombre de modules convertisseurs, un module pour chaque phase d'une forme d'onde de CA à générer, connectés entre deux bornes de CC et comprenant chacun un premier et un deuxième point de connexion de CC (DCCP1, DCCP2), une chaîne de commutateurs directeurs (S1, S2) dont le point médian fournit un troisième point de connexion (CP3), et des branches de mise en forme d'ondes (WSB1, WSB2) connectées en parallèle l'une à l'autre ainsi qu'à la chaîne, chaque branche de mise en forme d'ondes (WSB1, WSB2) comprenant des sous-modules (SMA1, SMA2, SMA3, SMA4, SMB1, SMB2, SMB3, SMB4) et étant connectée à un point de connexion de CA (ACCP1, ACCP2) prévu pour la branche, le point de connexion de CA et/ou le troisième point de connexion étant prévus pour une connexion à une phase correspondante d'une liaison de CA, les première et seconde branches de mise en forme d'ondes produisant deux formes d'ondes similaires pour la liaison de CA et les commutateurs changeant la manière dont les formes d'ondes sont appliquées à des points de connexion.
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