INVERTER CIRCUIT COMPRISING A CIRCUIT ARRANGEMENT FOR REGENERATIVE DAMPING OF ELECTRICAL OSCILLATIONS, AND METHOD FOR REGENERATIVE DAMPING OF ELECTRICAL OSCILLATIONS

The invention relates to an inverter circuit for the alternating connection of the phases of a three-phase load to a DC source, having pairs of electronic switches connected in parallel with one The two switches of each pair are connected in series, and wherein the connection for the respective phas...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	PEUSER, Thomas, PURCAREA, Calin
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 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:	The invention relates to an inverter circuit for the alternating connection of the phases of a three-phase load to a DC source, having pairs of electronic switches connected in parallel with one The two switches of each pair are connected in series, and wherein the connection for the respective phase of the load is provided at the connection of the two electronic switches belonging to the pair. An intermediate circuit capacitor is connected in parallel to the DC source. Electric connections are provided between the intermediate circuit capacitor and the power module for the connection of the switch pairs. The circuit arrangement has a buffer capacitor connected to a connection of the switch pairs. A first diode connects the buffer capacitor to the other connection of the switch pairs. A step-down controller connects the buffer capacitor to the intermediate circuit capacitor.