A transformer (2) steps down and feeds an inputted AC power to a converter (3). A primary voltage of the transformer (2) detected by a voltage detector (8) is sent to a converter control unit (4) and a frequency detection unit (6) via a BPF (5). The converter control unit (4) controls a converter (3) on the basis of the primary voltage so that the power factor becomes a predetermined value or greater, and the converter (3) converts the AC power to DC power. The frequency detector (6) detects the frequency of the primary voltage on the basis of an interval between time points when the primary voltage which has passed through the BPF (5) exceeds a threshold value. A filter regulation unit (7) calculates filter characteristics using the detected frequency as the center frequency of the BPF (5), and regulates the BPF (5) on the basis of the filter characteristics.


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    Titel :

    Power conversion device and power conversion method


    Beteiligte:

    Erscheinungsdatum :

    2015-11-26


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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