Charging and discharging circuit

The invention provides a charging and discharging circuit, which is used in a battery. The charging and discharging circuit comprises an isolation transformer, an input filter unit, a PWM bidirectional high-frequency rectifying unit, a bidirectional chopper unit, and a DC filter unit connected in se...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	SHI LINGDAN, LIU BANG, WANG RUI, LI JUN, RUAN HUI
Format:	Patent
Sprache:	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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention provides a charging and discharging circuit, which is used in a battery. The charging and discharging circuit comprises an isolation transformer, an input filter unit, a PWM bidirectional high-frequency rectifying unit, a bidirectional chopper unit, and a DC filter unit connected in sequence. The charging and discharging circuit also comprises a discharging unit. The positive electrode of the discharging unit is connected with the positive electrode output end of the bidirectional chopper unit, and the negative electrode is connected with the input end of the DC filter unit. A short circuit control switch for a short circuit discharging unit is arranged between the positive electrode output end of the bidirectional chopper unit and the input end of the DC filter unit. A discharging control switch is arranged between the negative electrode of the discharging unit and the input end of the DC filter unit. The discharging control switch is used for connecting the discharging unit in a loop of the bidirectional chopper unit and the DC filter unit when the short circuit control switch is controlled to be turned off. Through improving the main loop topological structure of the battery charging and discharging circuit, deep discharging of discharging the battery to 0V can be realized.