Electric machine comprising an alternating current electric motor and an inverter

    公开(公告)号:US10320321B2

    公开(公告)日:2019-06-11

    申请号:US15366385

    申请日:2016-12-01

    Applicant: MAVEL S.r.l.

    Inventor: Davide Bettoni

    Abstract: An electric machine includes an alternating current electric motor comprising two semi-windings and an inverter comprising at least two inverter branches which are electrically connected each one to a respective semi-winding. The machine also includes a control unit which provides respective control signals to the two inverter branches so that they induce two alternating currents of frequency in the respective semi-windings. The control signals of the two inverter branches have a frequency smaller than the frequency and are also reciprocally out of phase by 180° relative to the frequency. This allows reducing ripples of the overall alternating current resulting from the sum of the two alternating currents provided by the two semi-windings.

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