Direct-current electrolysis system topology based on photovoltaic energy storage and control method thereof

Direct-current electrolysis system topology based on photovoltaic energy storage and control method thereof

The invention provides a DC electrolysis system topology based on photovoltaic energy storage and a control method thereof. The system comprises a power grid balancer, a photovoltaic unit, an energy storage unit, a low-voltage direct-current transformer, a medium-voltage direct-current transformer,...

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Bibliographische Detailangaben
Hauptverfasser: CHEN YING, HUANG SHENHAI, ZHANG ZHONGFENG, ZHONG YIFENG, GE JIAN, SHA LEI, LIU XIN, LI JIAPENG, WANG KANGXIONG, HONG XIAOYAN, YAO YUE, LI JINGYU, ZHANG SILIANG, LIU XIONGJIE, LU SHUANG, QIAN WEIJIE, DU CHAO, ZHOU WEIGUO
Format: Patent
Sprache:chi ; eng
Schlagworte:
APPARATUS THEREFOR
CHEMISTRY
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS
GENERATION
METALLURGY
SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:The invention provides a DC electrolysis system topology based on photovoltaic energy storage and a control method thereof. The system comprises a power grid balancer, a photovoltaic unit, an energy storage unit, a low-voltage direct-current transformer, a medium-voltage direct-current transformer, an electrolytic cell, a low-voltage direct-current bus, a medium-voltage direct-current bus and switches K1, K2 and K3. The power grid balancer is connected with an AC power grid and a medium-voltage DC power grid; the low-voltage direct-current transformer LDCT1 is connected with a photovoltaic bus and a low-voltage direct-current bus; the low-voltage direct-current transformer LDCT2 is connected with an energy storage and low-voltage direct-current bus; the medium-voltage direct-current transformer MDCT1 is connected with the low-voltage direct-current bus and the medium-voltage direct-current bus; and the medium-voltage direct-current transformer MDCT2 is connected with the medium-voltage direct-current bus and