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1. WO2017144430 - MODULAR MULTILEVEL CONVERTER AND POWER ELECTRONIC TRANSFORMER

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Publication Number WO/2017/144430
Publication Date 31.08.2017
International Application No. PCT/EP2017/053833
International Filing Date 21.02.2017
IPC
H02M 5/45 2006.1
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
5Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
40with intermediate conversion into dc
42by static converters
44using discharge tubes or semiconductor devices to convert the intermediate dc into ac
443using devices of a thyratron or thyristor type requiring extinguishing means
45using semiconductor devices only
H02M 7/483 2007.1
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 1/008
H02M 1/0095
H02M 5/225
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
5Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
02without intermediate conversion into dc
04by static converters
22using discharge tubes with control electrode or semiconductor devices with control electrode
225comprising two stages of AC-AC conversion, e.g. having a high frequency intermediate link
H02M 5/4585
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
5Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
40with intermediate conversion into dc
42by static converters
44using discharge tubes or semiconductor devices to convert the intermediate dc into ac
453using devices of a triode or transistor type requiring continuous application of a control signal
458using semiconductor devices only
4585having a rectifier with controlled elements
H02M 7/4835
Applicants
  • SIEMENS AKTIENGESELLSCHAFT [DE]/[DE]
Inventors
  • SHI, Lei
  • YAO, Ji Long
  • ZHAO, Yan Feng
Agents
  • ISARPATENT PATENT- UND RECHTSANWÄLTE BEHNISCH, BARTH, CHARLES, HASSA, PECKMANN & PARTNER MBB
Priority Data
201610100169.323.02.2016CN
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) MODULAR MULTILEVEL CONVERTER AND POWER ELECTRONIC TRANSFORMER
(FR) CONVERTISSEUR MODULAIRE MULTINIVEAU ET TRANSFORMATEUR ÉLECTRONIQUE DE PUISSANCE
front page image
Abstract
(EN) The present invention provides a modular multilivel converter and a power electronic transformer, the modular multilevel converter comprising: a low- frequency AC to DC conversion module, comprising three branch circuits connected in parallel between output ends V1, V2, each branch circuit being formed of multiple IGBT half -bridge circuits connected in series, and an electric coupling point N0 of two adjacent IGBT half -bridge circuits in a middle position of the branch circuit being connected to a voltage input end Vin; a DC to high-frequency AC conversion module, connected between the output ends V1 V2, the DC to high-frequency AC conversion module being formed of multiple IGBT half -bridge circuits connected in series, the DC to high-frequency AC conversion module having multiple sets of output ends. The MMC and power electronic transformer of the present invention have a smaller volume, lower cost and better stability in use.
(FR) La présente invention concerne un convertisseur modulaire multiniveau (MMC) et un transformateur électronique de puissance, le convertisseur modulaire multiniveau comprenant : un module de conversion de courant alternatif basse fréquence en courant continu, comprenant trois circuits de branche connectés en parallèle entre des bornes de sortie V1, V2, chaque circuit de branche étant constitué de multiples circuits en demi-pont à IGBT connectés en série, et un point de couplage électrique N0 de deux circuits en demi-pont à IGBT adjacents dans une position centrale du circuit de branche étant connecté à une borne d'entrée de tension Vin ; et un module de conversion de courant continu en courant alternatif haute fréquence connecté entre les bornes de sortie V1, V2, le module de conversion de courant continu en courant alternatif haute fréquence étant constitué de multiples circuits en demi-pont à IGBT connectés en série, le module de conversion de courant continu en courant alternatif haute fréquence comprenant de multiples ensembles de bornes de sortie. Le MMC et le transformateur électronique de puissance de la présente invention présentent un plus petit volume, un plus bas coût et une meilleure stabilité lors de l'utilisation.
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