NETWORK FEEDBACK UNIT AND ELECTRICAL DRIVE SYSTEM

A network feedback unit (1) is designed to feed electrical energy from a voltage intermediate circuit (2) into a three-phase network (3), wherein the network feedback unit (1) comprises: a step-down converter unit (4) having a first step-down converter (5) and a second step-down converter (6), where...

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Bibliographische Detailangaben
Hauptverfasser:	SCHEKULIN DIRK, SCHNEGGENBURGER CHRISTOF
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 CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	A network feedback unit (1) is designed to feed electrical energy from a voltage intermediate circuit (2) into a three-phase network (3), wherein the network feedback unit (1) comprises: a step-down converter unit (4) having a first step-down converter (5) and a second step-down converter (6), wherein the first step-down converter (5) and the second step-down converter (6) are connected in parallel and each electrically coupled on the input side with the voltage intermediate circuit (2); an inverter (7), which is electrically coupled on the input side with an output of the step-down converterunit (4) and is electrically coupled on the output side with the three-phase network (3); at least one filter capacitor (CF; CF1, CF2, CF3), which is arranged on the output of the step-down converterunit (4) or on the output of the inverter (7); and a control unit (8), which is designed to control the first step-down converter (5) and the second step-down converter (6), according to a filter capacitor current (iCF; iCF1,