Electrical arrangement for power electronics in electric motor, has impedance switched in series with electrolytic capacitor, where impedance lies in region between condenser and fully equivalent series resistance of capacitor

Electrical arrangement for power electronics in electric motor, has impedance switched in series with electrolytic capacitor, where impedance lies in region between condenser and fully equivalent series resistance of capacitor

The arrangement has a voltage intermediate circuit, a parallel switched film capacitor (1) and an electrolytic capacitor (2), where an impedance (3) with a specific resistance value is switched in series with the electrolytic capacitor. The impedance lies in the region between a condenser and the fu...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: STELLMACHER, THORSTEN, WOLFF, CHRISTIAN, BLOECKER, GERRIT
Format: Patent
Sprache:eng ; 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 arrangement has a voltage intermediate circuit, a parallel switched film capacitor (1) and an electrolytic capacitor (2), where an impedance (3) with a specific resistance value is switched in series with the electrolytic capacitor. The impedance lies in the region between a condenser and the fully equivalent series resistance (ESR) of the electrolytic capacitor. A series circuit lies in parallel to the film capacitor. The resistance switched in series to the electrolytic capacitor displaces the ripple current in the film capacitor. Die Erfindung betrifft eine elektrische Anordnung zur Bildung eines Spannungszwischenkreises für einen Elektromotor, mit zumindest einem ersten Kondensator (1) und zumindest einem parallel zu diesem geschalteten zweiten Kondensator (2), wobei in Reihe zu dem zumindest einen zweiten Kondensator (2) eine Impedanz (3) mit einem Widerstandswert geschaltet ist, der im Bereich zwischen einem Drittel und dem vollen äquivalenten Serienwiderstand des zumindest einen zweiten Kondensators (2) liegt.