SERIES BATTERY CELL CONSTANT-VOLTAGE CIRCUIT AND CONTROL METHOD THEREFOR

A series battery cell constant-voltage circuit, comprising a battery (1) and a direct current (DC) power supply (2), wherein a battery constant-voltage unit (3) is connected in parallel at two ends of each battery (1), all the battery constant-voltage units (3) are connected to a control unit (4) th...

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Bibliographische Detailangaben
Hauptverfasser:	ZENG, Zhiyong, LIANG, Ming, LIU, Mugui, LIANG, Dixiang, ZHANG, Wensheng
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:	A series battery cell constant-voltage circuit, comprising a battery (1) and a direct current (DC) power supply (2), wherein a battery constant-voltage unit (3) is connected in parallel at two ends of each battery (1), all the battery constant-voltage units (3) are connected to a control unit (4) that controls the state of the constant-voltage units, a feedback positive electrode terminal of each battery constant-voltage unit (3) is connected to an input positive electrode of the DC power supply (2), a feedback negative electrode terminal of each battery constant-voltage unit (3) is connected to an input negative electrode of the DC power supply (2), and the mode in which the control unit (4) controls the state of the constant-voltage units can implement an overall constant-current charging and discharging step for the battery (1) and can also implement a constant-voltage charging step for a single battery (1); in addition, during a constant voltage step of the single battery (1), excess energy is fed back to