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    • 2. 发明申请
    • CONTROL DEVICE AND METHOD FOR OPERATING AN ELECTRICAL MACHINE DRIVEN BY AN INVERTER
    • 控制装置及方法用于运行由逆变器控制的电动机
    • WO2012139792A3
    • 2013-05-23
    • PCT/EP2012052566
    • 2012-02-15
    • BOSCH GMBH ROBERTHEIDRICH TORSTENHIRSCH MICHELEKRETSCHMER MARKUSGAAB STEFANDJONGA CHRISTIANWERNER TOBIASHEEB MICHAEL
    • HEIDRICH TORSTENHIRSCH MICHELEKRETSCHMER MARKUSGAAB STEFANDJONGA CHRISTIANWERNER TOBIASHEEB MICHAEL
    • B60L3/06B60L3/12G01K7/42H01L27/02H02M1/32
    • H02P27/06G01K7/427G01K2217/00H02H6/00H02M2001/327H02P29/028H02P29/032H02P29/68
    • The invention relates to a method for operating an electrical machine (1) controlled by an inverter (2), wherein the inverter (2) comprises half-bridge branches (10-U, 10-V, 10-W) having power components in the form of controllable power switching elements (3) and power diodes (4) respectively connected in parallel therewith, wherein each of the half-bridge branches (10-U; 10-V; 10-W) is arranged on a separate semiconductor module (11-U; 11-V; 11-W), which are arranged jointly on a baseplate (12), wherein the phase currents (l_U, l_V, l_W) flowing through the half-bridge branches (10-U, 10-V, 10-W), the voltages present at the power components and temperatures (t_Sens_U, t_Sens_V, t_Sens_W) on the semiconductor modules (11-U, 11-V, 11-W) are determined, from the current (l_U; l_V; l_W) respectively flowing at a power component and from the voltage respectively present a power loss (P) is calculated for each of the power components, from the power losses (P) a relevant temperature swing (Deltat; Deltat_Sens) is determined for each of the power components and for temperature sensors (13-U, 13-V, 13-W) serving to determine the temperatures on the semiconductor modules, a temperature (TempCooler) of the baseplate (12) is determined from the determined temperatures (t_Sens_U, t_Sens_V, t_Sens_W) on the semiconductor modules (11-u, 11-V, 11-W) and the determined temperature swings (Deltat_Sens) at the temperature sensors (13-U, 13-V, 13-W), and a torque or a power of the electrical machine (1) is determined in a manner dependent on the determined temperature swings (Deltat) and the determined temperature (TempCooler) of the basplate (12).
    • 本发明涉及一种方法,用于由逆变器操作(2)控制的电动机(1),其中所述逆变器(3)半桥分支(10-U,10 V,10 W)与电源组件在可控功率开关元件的形式 (3)和每个并联连接的功率二极管(4),其中,每个半桥分支(10-U,10 V,10 W)的单独的半导体模块(11-U,11 V,11 W) 被布置,它们在基体板(12),其中,所述通过半桥分支(10-U,10 V,10 W)中流动的相电流(l_U,L_V,l_W),施加至功率元件紧张的电压和共同布置 (; L_V; l_W l_U)和分别施加电压的的温度(t_Sens_U,t_Sens_V,t_Sens_W)由在功率器件中流动的电流的相应电流来计算在所述半导体模块(11-U,11 V,11 W) 功耗(P)计算用于每个功率组件,从V erlustleistungen(P),的相应的温度升程(DeltaT的; Deltat_Sens)(对于每个电力设备,以及用于温度传感器13-U,13 V,13 W),其用于温度对半导体模块的判断,则确定(从所确定的温度t_Sens_U,t_Sens_V,t_Sens_W) 半导体模块(11-U,11 V,11 W)和温度笔划确定(Deltat_Sens)与温度传感器(13-U,13 V,13 W)的温度下底板的(TempCooler)(12) 被确定,并且一个扭矩或所述电机(1)的在所确定的温度笔划(DeltaT的)依赖性的功率,并且所述底板(12)的检测温度(TempCooler)是固定的。