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1. WO2019059487 - ENERGY STORAGE SYSTEM

Publication Number WO/2019/059487
Publication Date 28.03.2019
International Application No. PCT/KR2018/005380
International Filing Date 10.05.2018
IPC
H02J 3/32 2006.01
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
28Arrangements for balancing the load in a network by storage of energy
32using batteries with converting means
H02M 7/17 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
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
17arranged for operation in parallel
H02J 3/38 2006.01
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
38Arrangements for parallelly feeding a single network by two or more generators, converters, or transformers
H02M 1/00 2007.01
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
1Details of apparatus for conversion
CPC
G05B 19/042
GPHYSICS
05CONTROLLING; REGULATING
BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
19Programme-control systems
02electric
04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
042using digital processors
G05B 2219/2639
GPHYSICS
05CONTROLLING; REGULATING
BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
2219Program-control systems
20Pc systems
26Pc applications
2639Energy management, use maximum of cheap power, keep peak load low
H02J 1/082
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
1Circuit arrangements for dc mains or dc distribution networks
08Three-wire systems; Systems having more than three wires
082Plural DC voltage, e.g. DC supply voltage with at least two different DC voltage levels
H02J 3/32
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
28Arrangements for balancing of the load in a network by storage of energy
32using batteries with converting means
H02J 3/38
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
38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
H02J 3/381
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
38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
381Dispersed generators
Applicants
  • 엘에스산전 주식회사 LSIS CO., LTD. [KR]/[KR]
Inventors
  • 이지헌 LEE, Ji-Heon
Agents
  • 특허법인 대아 DAE-A INTELLECTUAL PROPERTY CONSULTING
Priority Data
10-2017-012123420.09.2017KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) ENERGY STORAGE SYSTEM
(FR) SYSTÈME DE STOCKAGE D'ÉNERGIE
(KO) 에너지 저장 시스템
Abstract
(EN)
The present invention relates to an energy storage system. An energy storage system according to an embodiment of the present invention relates to an energy storage system for managing a grid and power of a direct current (DC) power distribution network associated with the grid, the energy storage system comprising: a first converter connected between a grid and a DC power distribution network so as to control voltage of the DC power distribution network; a second converter connected to the DC power distribution network so as to detect voltage of the DC power distribution network; a battery connected to the second converter, wherein the second converter controls charging/discharging of the battery; a rectifier connected in parallel to the first converter; and a first higher layer controller for controlling the first converter, the second converter, and the rectifier, and determining a limit voltage of the DC power distribution network and whether to drive the rectifier, on the basis of a state of the first converter.
(FR)
La présente invention concerne un système de stockage d'énergie. Un système de stockage d'énergie selon un mode de réalisation de l'invention est un système de stockage d'énergie conçu pour gérer une grille et une puissance d'un réseau de distribution de courant continu (CC) associé à la grille, le système de stockage d'énergie comprenant : un premier convertisseur connecté entre une grille et un réseau de distribution de CC de façon à commander la tension du réseau de distribution de CC ; un second convertisseur connecté au réseau de distribution de CC de façon à détecter une tension du réseau de distribution de CC ; une batterie connectée au second convertisseur, le second convertisseur commandant la charge/décharge de la batterie ; un redresseur connecté en dérivation au premier convertisseur ; et un premier dispositif de commande de couche supérieure pour commander le premier convertisseur, le second convertisseur et le redresseur, et déterminer une tension limite du réseau de distribution de CC et la nécessité ou non d'exciter le redresseur, sur la base d'un état du premier convertisseur.
(KO)
본 발명은 에너지 저장 시스템에 관한 것이다. 본 발명의 실시예에 따른 에너지 저장 시스템은 계통 및 계통에 연계된 DC(Direct Current) 배전망의 전력을 관리하는 에너지 저장 시스템에 있어서, 계통과 DC 배전망 사이에 연결되어 DC 배전망의 전압을 제어하는 제1 컨버터, DC 배전망에 연결되어 DC 배전망의 전압을 감지하는 제2 컨버터, 제2 컨버터에 연결되고, 제2 컨버터에 의해 충방전이 제어되는 배터리, 제1 컨버터에 병렬 연결되는 정류기 및 제1 및 제2 컨버터와 정류기를 제어하고, 제1 컨버터의 상태를 토대로 정류기의 구동 여부와 DC 배전망의 한계 전압을 결정하는 제1 상위 제어기를 포함한다.
Also published as
JP2020515877
Latest bibliographic data on file with the International Bureau