Converter system, charging and discharging system, and charging and discharging control method and device

The invention discloses a converter system, a charging and discharging system and a charging and discharging control method and device. The converter system comprises a three-level energy storage converter used for being connected with an external alternating current power supply; the charging and d...

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Bibliographische Detailangaben
Hauptverfasser:	CHEN YI, JIN ZHAOZHAO, ZHANG XINTAO, HE JIANJUN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	The invention discloses a converter system, a charging and discharging system and a charging and discharging control method and device. The converter system comprises a three-level energy storage converter used for being connected with an external alternating current power supply; the charging and discharging circuit comprises a positive-stage bus circuit, the first end of the positive-stage bus circuit is connected with the positive electrode end of the three-level energy storage converter, and the second end of the positive-stage bus circuit is connected with the first connecting terminal so as to be connected with the positive electrode end of an external battery pack; the first end of the negative bus circuit is connected with the negative end of the three-level energy storage converter, and the second end of the negative bus circuit is connected with the second connecting terminal so as to be connected with the negative end of the battery pack; and the grounding module is connected with the zero potentia