VERFAHREN ZUM PLAUSIBILISIEREN DES DREHMOMENTES EINER ELEKTRISCHEN MASCHINE UND MASCHINENREGLER ZUR REGELUNG EINER ELEKTRISCHEN MASCHINE UND ZUR DURCHFÜHRUNG DES VERFAHRENS
    5.
    发明公开

    公开(公告)号:EP2499737A1

    公开(公告)日:2012-09-19

    申请号:EP10754508.9

    申请日:2010-09-16

    申请人: Robert Bosch GmbH

    IPC分类号: H02P29/02 B60L3/00 G05B17/02

    摘要: The invention relates to a method for checking the plausibility of a torque (Trq
    EmMdl ) of an electrical machine (1), which torque is calculated using a machine model, in which method a first value (Pwr
    EmMdl ) of an electromagnetic power of the electrical machine (1) is determined from the calculated torque (Trq
    EmMdl ) and a rotational speed (n) of the electrical machine (1). The stator currents (l
    sU , l
    sV , l
    sW ) and the stator phase voltages (U
    sU , U
    sV , U
    sW ) are used to calculate stator current components (l
    sA , l
    sB ) and stator phase voltage components (U
    sA , U
    sB ), respectively, with respect to a reference system which is fixed to the stator. A second value (Pwr
    EmSens ) of the electromagnetic power of the electrical machine (1) is determined from the stator current components (l
    sA , I
    sB ) and the stator phase voltage components (U
    sA , U
    sB ). If a difference between the first value (Pwr
    EmMdl ) of the electromagnetic power and the second value (Pwr
    EmSens ) of the electromagnetic power of the electrical machine (1) exceeds a predefined power threshold value (Pwr
    ErrLim ), the torque (Trq
    EmMdl ) of the electrical machine (1), as calculated using the machine model, is classified as implausible.