SHORT CIRCUIT-RESISTANT CONVERTER WITH DIRECT CURRENT CONTROL

A converter feeds phase currents into phase lines by applying alternately a high and a low potential via phase units. The phase currents are supplied via a filter device arranged downstream of the converter, with a portion of the filter currents supplied to filter capacitors connected to the phase l...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WIESSMANN, Harald, GÖTZELMANN, Michael
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:	A converter feeds phase currents into phase lines by applying alternately a high and a low potential via phase units. The phase currents are supplied via a filter device arranged downstream of the converter, with a portion of the filter currents supplied to filter capacitors connected to the phase lines, and feeds the remaining parts of the phase currents supplied to an electric load. The control device accepts the phase currents. A regulating device determines control signals for the phase units by direct-current control, such that a voltage profile downstream of the filter device has a predetermined amplitude when and as long as the supplied phase currents have minimum spacing from a predetermined maximum value. Otherwise, the control device intervenes in the control of the phase units by limiting the phase currents to the maximum value, until the voltage profile downstream of the filter device regains the predetermined amplitude.