A method is disclosed for reducing the common mode current flowing between the internal ground of an electrical circuit in an automotive vehicle, and the earth, when electric power is exchanged between an electric power storage unit of the electrical circuit and an electric power source external to the circuit. An electronic component is used to apply an electrical quantity as a function of the common mode current to an injection point in the circuit in order to reduce the common mode current. The value of the common mode current is obtained using a measuring device having a magnetic torus configured to be traversed by an electric line by which the electric power is exchanged, the electric line forming a primary winding, a secondary winding, wound about said torus for generating a magnetic flux on the basis of a reference current, and an oscillator for generating the reference current through the secondary winding.


    Access

    Download


    Export, share and cite



    Title :

    Method for reducing the common mode current


    Contributors:

    Publication date :

    2016-01-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / 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



    TRANSFORMER FOR MEASURING A COMMON MODE CURRENT AND METHOD OF DETERMINING A COMMON MODE CURRENT

    GABRIELSSON PETER / FLACK ALBERT JOSEPH / BERMAN SCOTT | European Patent Office | 2023

    Free access

    MVDC grounding and common mode current control

    Amy, John V. / Doerry, Norbert H. | IEEE | 2017



    COMMON MODE CURRENT REDUCTION HYBRID DRIVE SYSTEM

    WANG JIYAO / XU WEI / XU YINGHAN et al. | European Patent Office | 2019

    Free access

    Common mode current reduction hybrid drive system

    WANG JIYAO / XU WEI / XU YINGHAN et al. | European Patent Office | 2020

    Free access