CHARGE BALANCING CIRCUIT FOR AN ENERGY STORE AND METHOD FOR BALANCING CHARGE DIFFERENCES IN AN ENERGY STORE

The invention relates to a charge balancing circuit for an energy store having: a plurality of energy storage cells and modules connected in series; an inverter, the input terminals of which are coupled to terminals of the energy store and which is designed to convert the total voltage of the energy...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SCHMIDT, ALEXANDER, DITTMER, BERND, IMRE, ARPAD
Format:	Patent
Sprache:	eng ; fre ; ger
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 ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL GENERATION MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES PERFORMING OPERATIONS SYSTEMS FOR STORING ELECTRIC ENERGY TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	The invention relates to a charge balancing circuit for an energy store having: a plurality of energy storage cells and modules connected in series; an inverter, the input terminals of which are coupled to terminals of the energy store and which is designed to convert the total voltage of the energy store into a balancing voltage; a transformer with a primary-side winding coupled to the inverter and with a plurality of secondary-side windings; a plurality of rectifiers, each of which is connected to a respective one of the plurality of secondary-side windings and which are designed to rectify the balancing voltage of the inverter and to feed the rectified balancing voltage into a respective one of the plurality of energy storage cells and modules; and a control device which is coupled to the inverter and is designed to adjust the level of the balancing voltage on the basis of the total voltage of the energy store and the number of energy storage cells and modules of the energy store.