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1. WO2022160791 - TOPOLOGICAL STRUCTURE OF HYBRID CONVERTER AND CONTROL METHOD THEREFOR

Publication Number WO/2022/160791
Publication Date 04.08.2022
International Application No. PCT/CN2021/124770
International Filing Date 19.10.2021
IPC
H02M 7/521 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
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
521in a bridge configuration
H02M 1/32 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
1Details of apparatus for conversion
32Means for protecting converters other than by automatic disconnection
H02J 3/36 2006.1
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
CPC
H02J 3/36
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 1/32
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
32Means for protecting converters other than automatic disconnection
H02M 7/521
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
521in a bridge configuration
Y02E 60/60
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
60Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
60Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Applicants
  • 全球能源互联网研究院有限公司 GLOBAL ENERGY INTERCONNECTION RESEARCH INSTITUTE CO., LTD. [CN]/[CN]
Inventors
  • 高冲 GAO, Chong
  • 贺之渊 HE, Zhiyuan
  • 汤广福 TANG, Guangfu
  • 杨俊 YANG, Jun
  • 盛财旺 SHENG, Caiwang
Agents
  • 北京派特恩知识产权代理有限公司 CHINA PAT INTELLECTUAL PROPERTY OFFICE
Priority Data
202110139638.301.02.2021CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) TOPOLOGICAL STRUCTURE OF HYBRID CONVERTER AND CONTROL METHOD THEREFOR
(FR) STRUCTURE TOPOLOGIQUE D'UN CONVERTISSEUR HYBRIDE ET SON PROCÉDÉ DE COMMANDE
(ZH) 一种混合式换流器拓扑结构及其控制方法
Abstract
(EN) Embodiments of the present application disclose a topological structure of a hybrid converter and a control method therefor. The topological structure comprises: at least one phase of main branch, each phase of main branch comprising an upper bridge arm main branch and a lower bridge arm main branch, each upper bridge arm main branch being provided with a first thyristor valve, and each lower bridge arm main branch being provided with a second thyristor valve; at least one phase of assistive branch, each phase of assistive branch comprising an upper bridge arm assistive branch and a lower bridge arm assistive branch, each upper bridge arm assistive branch circuit being provided with a first assistive commutation valve, each lower bridge arm assistive branch being provided with a second assistive commutation valve, the assistive branches being connected in parallel with the main branches and used for assisting the main branches to perform forced commutation when the commutation of the main branches fails; and switchable valves, provided on the main branches or the assistive branches and used for transferring the current of each main branch to each assistive branch during forced commutation.
(FR) Des modes de réalisation de la présente demande concernent une structure topologique d'un convertisseur hybride et son procédé de commande. La structure topologique comprend : au moins une phase de dérivation principale, chaque phase de dérivation principale comprenant une dérivation principale de branche de pont supérieure et une dérivation principale de branche de pont inférieure, chaque dérivation principale de branche de pont supérieure étant pourvue d'une première vanne à thyristor, et chaque dérivation principale de branche de pont inférieure étant pourvue d'une seconde vanne à thyristor ; au moins une phase de dérivation d'assistance, chaque phase de dérivation d'assistance comprenant une dérivation d'assistance de branche de pont supérieure et une dérivation d'assistance de branche de pont inférieure, chaque circuit de dérivation d'assistance de branche de pont supérieure étant pourvu d'une première vanne de commutation d'assistance, chaque dérivation d'assistance de branche de pont inférieure étant pourvue d'une seconde vanne de commutation d'assistance, les dérivations d'assistance étant reliées en parallèle aux dérivations principales et utilisées pour aider les dérivations principales à effectuer une commutation forcée lors de l'échec de la commutation des dérivations principales ; et des vannes commutables, disposées sur les dérivations principales ou les dérivations d'assistance et utilisées pour transférer le courant de chaque dérivation principale à chaque dérivation d'assistance pendant une commutation forcée.
(ZH) 本申请实施例公开了一种混合式换流器拓扑结构及其控制方法,其中,该拓扑结构包括:至少一相主支路,每相主支路包括上桥臂主支路和下桥臂主支路,上桥臂主支路上设置有第一晶闸管阀,下桥臂主支路上设置有第二晶闸管阀;至少一相辅助支路,每相辅助支路包括上桥臂辅助支路和下桥臂辅助支路,上桥臂辅助支路上设置有第一辅助换相阀,下桥臂辅助支路上设置有第二辅助换相阀;辅助支路与主支路并联,用于在主支路换相失败时,辅助主支路进行强迫换相;可关断阀设置在主支路或者辅助支路上,用于强迫换相时,将主支路的电流转移至辅助支路。
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