Modular centralized energy storage system

The invention relates to a modular centralized energy storage system comprising a modular multilevel converter, an energy storage system interface, an isolated DC/DC circuit and an energy storage unit. An input end of the modular multilevel converter is connected to k-phase high-voltage alternating...

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Main Authors YANG XIAOFENG, WEI CHUNXIA, XUE YAO, YOU XIAOJIE, WANG ZHIBING, ZHENG QIONGLIN, LI YAN, CHI YONGNING, LI ZEJIE, LIU CHAO, YAO LIANGZHONG
Format Patent
LanguageChinese
English
Published 20.07.2018
Subjects
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
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Abstract The invention relates to a modular centralized energy storage system comprising a modular multilevel converter, an energy storage system interface, an isolated DC/DC circuit and an energy storage unit. An input end of the modular multilevel converter is connected to k-phase high-voltage alternating current, and an output end of the modular multilevel converter is connected to positive and negativehigh-voltage DC buses. The positive DC bus is connected to sub modules 1 to n through an upper bridge arm inductor to be connected to an i1 end of an energy storage system sub interface 20i, the negative DC bus is connected to sub modules n+1 to 2n through a lower bridge arm inductor to be connected to an i2 end of the energy storage system sub interface 20i, i=1, 2, to k, an output end of the energy storage system sub interface 20i is connected to an input end of the isolated DC/DC circuit, and an output end of the isolated DC/DC circuit is connected to the energy storage unit. According tothe topology of the invent
AbstractList The invention relates to a modular centralized energy storage system comprising a modular multilevel converter, an energy storage system interface, an isolated DC/DC circuit and an energy storage unit. An input end of the modular multilevel converter is connected to k-phase high-voltage alternating current, and an output end of the modular multilevel converter is connected to positive and negativehigh-voltage DC buses. The positive DC bus is connected to sub modules 1 to n through an upper bridge arm inductor to be connected to an i1 end of an energy storage system sub interface 20i, the negative DC bus is connected to sub modules n+1 to 2n through a lower bridge arm inductor to be connected to an i2 end of the energy storage system sub interface 20i, i=1, 2, to k, an output end of the energy storage system sub interface 20i is connected to an input end of the isolated DC/DC circuit, and an output end of the isolated DC/DC circuit is connected to the energy storage unit. According tothe topology of the invent
Author YANG XIAOFENG
ZHENG QIONGLIN
XUE YAO
WEI CHUNXIA
CHI YONGNING
LIU CHAO
LI YAN
LI ZEJIE
YAO LIANGZHONG
WANG ZHIBING
YOU XIAOJIE
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– fullname: LI YAN
– fullname: CHI YONGNING
– fullname: LI ZEJIE
– fullname: LIU CHAO
– fullname: YAO LIANGZHONG
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BEIJING JIAOTONG UNIVERSITY
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Snippet The invention relates to a modular centralized energy storage system comprising a modular multilevel converter, an energy storage system interface, an isolated...
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SubjectTerms CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
Title Modular centralized energy storage system
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