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1. WO2020108460 - THREE-LEVEL POWER CONVERSION SYSTEM AND METHOD

Publication Number WO/2020/108460
Publication Date 04.06.2020
International Application No. PCT/CN2019/120772
International Filing Date 26.11.2019
IPC
H02M 7/04 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
02Conversion of ac power input into dc power output without possibility of reversal
04by static converters
CPC
H02M 2001/0058
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
0048Circuits or arrangements for reducing losses
0054Transistor switching losses
0058by employing soft switching techniques, i.e. commutation of transistor when voltage applied to it is zero and/or when current flowing through it is zero
H02M 2001/007
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
0067Converter structures employing plural converter units, other than for parallel operation of the units on a single load
007Plural converter units in cascade
H02M 2001/0077
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
0067Converter structures employing plural converter units, other than for parallel operation of the units on a single load
0077Plural converter units whose outputs are connected in series
H02M 2001/008
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
0067Converter structures employing plural converter units, other than for parallel operation of the units on a single load
008Plural converter units for generating at least two independent, non-parallel outputs, e.g. systems with plural point of load switching regulators
H02M 3/158
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
156with automatic control of output voltage or current, e.g. switching regulators
158including plural semiconductor devices as final control devices for a single load
H02M 3/33538
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
33538of the forward type
Applicants
  • HUAWEI TECHNOLOGIES CO., LTD. [CN]/[CN]
Inventors
  • ZHU, Huibin
  • DAI, Heping
Priority Data
62/771,43826.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) THREE-LEVEL POWER CONVERSION SYSTEM AND METHOD
(FR) SYSTÈME ET PROCÉDÉ DE CONVERSION DE COURANT À TROIS NIVEAUX
Abstract
(EN)
A system comprises a first three-level power converter having output terminals coupled to a three-level voltage bus apparatus and input terminals configured to be coupled with a solar panel array, an inverter coupled between the three-level voltage bus apparatus and an electrical grid and a second three-level power converter coupled between the three-level voltage bus apparatus and an energy storage unit.
(FR)
La présente invention concerne un système qui comprend un premier convertisseur de courant à trois niveaux ayant des bornes de sortie couplées à un appareil de bus de tension à trois niveaux et des bornes d'entrée configurées pour être couplées à un réseau de panneaux solaires, un onduleur couplé entre l'appareil de bus de tension à trois niveaux et un réseau électrique et un second convertisseur de courant à trois niveaux couplé entre l'appareil de bus de tension à trois niveaux et une unité de stockage d'énergie.
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