ENERGY STORAGE APPARATUS AND FLEXIBLE DIRECT-CURRENT POWER TRANSMISSION SYSTEM

Disclosed in the present application are an energy storage apparatus and a flexible direct-current power transmission system. The energy storage apparatus is connected between a positive direct-current bus and a negative direct-current bus of a receiving-end converter of the flexible direct-current...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LU, Yanhua, CAI, Xu, LIANG, Liliuyuan, LI, Zhekai, YANG, Renxin, YU, Dongxu
Format:	Patent
Sprache:	chi ; eng ; fre
Schlagworte:	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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Beschreibung
Zusammenfassung:	Disclosed in the present application are an energy storage apparatus and a flexible direct-current power transmission system. The energy storage apparatus is connected between a positive direct-current bus and a negative direct-current bus of a receiving-end converter of the flexible direct-current power transmission system, and comprises an energy storage battery, wherein the energy storage battery performs charging and/or discharging at a first power during normal operation of the flexible direct-current power transmission system, and the energy storage battery performs charging and/or discharging at a second power when an outgoing fault occurs in the receiving-end converter and results in a surplus power in the flexible direct-current power transmission system, the second power being greater than the first power. A surplus power of a flexible direct-current power transmission system is absorbed by using a relatively large second power of an energy storage battery, and daily energy storage and release are t