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1. WO2015142324 - HYBRID THREE-LEVEL NPC THYRISTOR CONVERTER WITH CHAIN-LINK STRINGS AS INNER AC SWITCHES

Publication Number WO/2015/142324
Publication Date 24.09.2015
International Application No. PCT/US2014/031178
International Filing Date 19.03.2014
Chapter 2 Demand Filed 28.01.2015
IPC
H02M 7/487 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
487Neutral point clamped inverters
H02M 7/515 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
505using devices of a thyratron or thyristor type requiring extinguishing means
515using semiconductor devices only
H02M 7/757 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
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 1/0095
H02M 1/083
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
1Details of apparatus for conversion
08Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
083for the ignition at the zero crossing of the voltage or the current
H02M 7/1557
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
02Conversion of ac power input into dc power output without possibility of reversal
04by static converters
12using discharge tubes with control electrode or semiconductor devices with control electrode
145using devices of a thyratron or thyristor type requiring extinguishing means
155using semiconductor devices only
1555with control circuit
1557with automatic control of the output voltage or current
H02M 7/217
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
02Conversion of ac power input into dc power output without possibility of reversal
04by static converters
12using discharge tubes with control electrode or semiconductor devices with control electrode
21using devices of a triode or transistor type requiring continuous application of a control signal
217using semiconductor devices only
H02M 7/4835
H02M 7/487
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
487Neutral point clamped inverters
Applicants
  • GENERAL ELECTRIC COMPANY [US]/[US]
Inventors
  • ZHANG, Di
  • GARCES, Luis, Jose
  • ROCKHILL, Andrew, Allen
Agents
  • JOSHI, Nitin, N.
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) HYBRID THREE-LEVEL NPC THYRISTOR CONVERTER WITH CHAIN-LINK STRINGS AS INNER AC SWITCHES
(FR) CONVERTISSEUR À THYRISTOR NPC À TROIS NIVEAUX HYBRIDE AVEC DES CHAÎNES À LIAISON DE CHAÎNE EN TANT QUE COMMUTATEURS À COURANT ALTERNATIF (CA) INTERNES
Abstract
(EN)
A method for power conversion includes coupling a first string (302) to a second string (304) via a first connecting node (310) and a second connecting node (312) to form at least one leg (301, 303, 305) of a power converter (104, 300). The first string (302) is operatively coupled across a first bus (306) and a second bus (308) and comprises a first branch (314) and a second branch (316) coupled via a third connecting node (318). The first branch (314) and the second branch (316) include a plurality of controllable semiconductor switches (330). Furthermore, the second string (304) comprises a first chain link (320) and a second chain link (322) coupled via an alternating current phase bus (326) and includes a plurality of switching units (334). The first chain link (320) and/or the second chain link (322) are controlled to generate a negative voltage across at least one of the plurality of controllable semiconductor switches (330) during a switch turn off process.
(FR)
L'invention porte sur un procédé pour une conversion de puissance, qui comprend le couplage d'une première chaîne (302) à une seconde chaîne (304) par l'intermédiaire d'un premier nœud de connexion (310) et d'un second nœud de connexion (312) pour former au moins une branche (301, 303, 305) d'un convertisseur de puissance (104, 300). La première chaîne (302) est couplée de manière fonctionnelle à travers un premier bus (306) et un second bus (308) et comprend une première branche (314) et une seconde branche (316) couplées par l'intermédiaire d'un troisième nœud de connexion (318). La première branche (314) et la seconde branche (316) comprennent une pluralité de commutateurs à semi-conducteurs commandables (330). En outre, la seconde chaîne (304) comprend une première liaison de chaîne (320) et une seconde liaison de chaîne (322) couplées par l'intermédiaire d'un bus de phase à courant alternatif (326) et comprend une pluralité d'unités de commutation (334). La première liaison de chaîne (320) et/ou la seconde liaison de chaîne (322) sont commandées pour générer une tension négative à travers au moins l'un de la pluralité de commutateurs à semi-conducteurs commandables (330) pendant un processus d'ouverture de commutateur.
Related patent documents
CN201480077300.8This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.
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