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    • 4. 发明申请
    • METHOD OF ERROR DETECTION WHEN CONTROLLING A ROTATING FIELD MOTOR
    • 控制旋转电机时的错误检测方法
    • US20100283500A1
    • 2010-11-11
    • US12776641
    • 2010-05-10
    • Stefan ZehNicola-Valeriu Olarescu
    • Stefan ZehNicola-Valeriu Olarescu
    • G01R31/34
    • H02P29/0241
    • A method is specified for fault identification when operating a rotating-field motor by means of a pulse-controlled inverter, wherein electromagnetic state variables of the rotating-field motor are determined by means of a mathematical model in space-vector form, and wherein the pulse-controlled inverter is operated electronically using space-vector variables. In this case, the invention provides that, during the operation of the rotating-field motor, the space vector of an uncontrolled state variable of the rotating-field motor is formed, in that the space vector that is formed is analyzed for a spectral component at twice the frequency of the rotating field, and in that, if the spectral component at twice the frequency is present, a partial turns short is deduced in the stator windings.
    • 在通过脉冲控制逆变器操作旋转电动机的情况下,指定用于故障识别的方法,其中通过空间矢量形式的数学模型来确定旋转电动机的电磁状态变量,并且其中, 脉冲控制逆变器采用空间矢量变量电子式运行。 在这种情况下,本发明提供的是,在旋转电动机的动作中,形成旋转电动机的不受控状态变量的空间矢量,其特征在于分析所形成的空间矢量的频谱分量 在旋转场的频率的两倍,并且如果存在频率两倍的频谱分量,则在定子绕组中推导出部分匝数短。
    • 5. 发明授权
    • Method of error detection when controlling a rotating-field motor
    • 控制旋转场电机时的误差检测方法
    • US08368420B2
    • 2013-02-05
    • US12776641
    • 2010-05-10
    • Stefan ZehNicola-Valeriu Olarescu
    • Stefan ZehNicola-Valeriu Olarescu
    • G01R31/34G01R31/40
    • H02P29/0241
    • A method is specified for fault identification when operating a rotating-field motor by means of a pulse-controlled inverter, wherein electromagnetic state variables of the rotating-field motor are determined by means of a mathematical model in space-vector form, and wherein the pulse-controlled inverter is operated electronically using space-vector variables. In this case, the invention provides that, during the operation of the rotating-field motor, the space vector of an uncontrolled state variable of the rotating-field motor is formed, in that the space vector that is formed is analyzed for a spectral component at twice the frequency of the rotating field, and in that, if the spectral component at twice the frequency is present, a partial turns short is deduced in the stator windings.
    • 在通过脉冲控制逆变器操作旋转电动机的情况下,指定用于故障识别的方法,其中通过空间矢量形式的数学模型确定旋转电动机的电磁状态变量,并且其中, 脉冲控制逆变器采用空间矢量变量电子式运行。 在这种情况下,本发明提供的是,在旋转电动机的动作中,形成旋转电动机的不受控状态变量的空间矢量,其特征在于分析所形成的空间矢量的频谱分量 在旋转场的频率的两倍,并且如果存在频率两倍的频谱分量,则在定子绕组中推导出部分匝数短。
    • 7. 发明授权
    • Method and apparatus for determining the rotor position of synchronous motors
    • 确定同步电机转子位置的方法和装置
    • US06249094B1
    • 2001-06-19
    • US09398576
    • 1999-09-17
    • Stefan ZehMartin Weinmann
    • Stefan ZehMartin Weinmann
    • H02P118
    • H02P6/182
    • Described is a method of determining the rotary position of the rotor of a synchronous motor, in relation to the rotating magnetic stator field. The instantaneous rotor position is ascertained by measurement of the emf (E.s) induced in at least one stator winding by the rotor in a current gap in the stator current (I.s) flowing through said stator winding, wherein in accordance with the invention when using a sinusoidal or quasi-sinusoidal stator current an artificial current gap in the stator current is produced. In that case the induced emf (E.s) is directly derived from the tapped-off terminal potential (U.s) of the respective stator winding.
    • 描述了相对于旋转磁定子磁场确定同步电动机的转子的旋转位置的方法。 通过在流过定子绕组的定子电流(Is)中的电流间隙中由转子在至少一个定子绕组中感应的电动势(Es)的测量来确定瞬时转子位置,其中根据本发明,当使用 正弦或准正弦定子电流产生定子电流中的人造电流间隙。 在这种情况下,感应电动势(E.s)直接来源于相应定子绕组的分接端电位(U.s)。
    • 8. 发明申请
    • Method of determining the imbalance of a laundry drum
    • 确定洗衣滚筒不平衡的方法
    • US20050143940A1
    • 2005-06-30
    • US11040805
    • 2005-01-21
    • Stefan ZehMartin Weinmann
    • Stefan ZehMartin Weinmann
    • D06F33/02D06F37/20G06F19/00
    • D06F37/203D06F33/02D06F2202/12
    • Before a washing machine is switched over to a very high spin speed in the spin program of the washing machine, the existing imbalance due to irregular distribution of laundry in the drum should be checked. If the imbalance is too strong, the spin program should be interrupted if there is a threat of excessively high bearing forces to be expected. The fluctuation in rotary speed, which may have a high frequency due to the drum speed, and of the power consumption of the washing machine motor measured downstream of the direct current intermediate circuit prior to the feed thereof into the inverter for producing the rotary field in the motor. There, the vector product of the current and the voltage for imbalance measurement by determining power is blocked off from mains network interference effects by the high capacitance of the direct current intermediate circuit.
    • 在洗衣机的旋转程序中洗衣机切换到非常高的旋转速度之前,应检查由于滚筒中衣物的不规则分布造成的现有不平衡。 如果不平衡太强,如果出现轴承力过高的威胁,应该中断旋转程序。 在将直流中间电路下游测量的洗衣机电动机在进给逆变器之前产生旋转磁场的旋转磁场的旋转磁场的旋转速度的波动可能具有高频率以及洗衣机电动机的功率消耗 电机。 在那里,通过确定功率的电流和电压不平衡测量的矢量积被直流电中间电路的高电容阻塞在电网干扰影响之外。
    • 9. 发明授权
    • Method and device for controlling a multiphase electronically commutated motor
    • 用于控制多相电子换向电机的方法和装置
    • US07285930B2
    • 2007-10-23
    • US11359702
    • 2006-02-22
    • Martin WeinmannAlexander MüllerStefan Zeh
    • Martin WeinmannAlexander MüllerStefan Zeh
    • H02P5/00
    • H02P6/182H02M2001/0009H02P27/06H03K17/08142H03K17/18
    • A method is specified for controlling a multiphase motor that is commutated by an inverter-side bridge circuit, in the course of which a particularly precise and technically simple detection of a control-relevant variable of a considered motor phase, in particular of a motor phase current and/or a back EMF voltage and/or a variable derived therefrom, takes place. It is provided here to determine the control-relevant variable with the aid of the current state of a freewheeling diode that is disposed in a phase half bridge, assigned to the respective motor phase, of the bridge circuit, the current state being detected during an on time in which a power switch, connected in parallel with the freewheeling diode, of the phase half bridge exhibits a conducting state, and a power switch connected in series with the freewheeling diode exhibits a blocking state.
    • 指定用于控制由逆变器侧桥式电路换向的多相电动机的方法,在该过程中,特别精确和技术上简单地检测所考虑的电动机相位的控制相关变量,特别是电动机相位 发生电流和/或反EMF电压和/或从其导出的变量。 这里提供了借助于配置在桥式电路的相应电动机相位的相位半桥中的续流二极管的当前状态来确定控制相关变量,在当前状态期间在 与半桥式并联连接的电源开关的相位半桥的导通状态为导通状态,与续流二极管串联连接的功率开关呈现阻塞状态。
    • 10. 发明申请
    • METHOD AND DEVICE FOR CONTROLLING A MULTIPHASE ELECTRONICALLY COMMUTATED MOTOR
    • 用于控制多相电子交流电动机的方法和装置
    • US20070194734A1
    • 2007-08-23
    • US11359702
    • 2006-02-22
    • Martin WeinmannAlexander MullerStefan Zeh
    • Martin WeinmannAlexander MullerStefan Zeh
    • H02P25/12
    • H02P6/182H02M2001/0009H02P27/06H03K17/08142H03K17/18
    • A method is specified for controlling a multiphase motor that is commutated by an inverter-side bridge circuit, in the course of which a particularly precise and technically simple detection of a control-relevant variable of a considered motor phase, in particular of a motor phase current and/or a back EMF voltage and/or a variable derived therefrom, takes place. It is provided here to determine the control-relevant variable with the aid of the current state of a freewheeling diode that is disposed in a phase half bridge, assigned to the respective motor phase, of the bridge circuit, the current state being detected during an on time in which a power switch, connected in parallel with the freewheeling diode, of the phase half bridge exhibits a conducting state, and a power switch connected in series with the freewheeling diode exhibits a blocking state.
    • 指定用于控制由逆变器侧桥式电路换向的多相电动机的方法,在该过程中,特别精确和技术上简单地检测所考虑的电动机相位的控制相关变量,特别是电动机相位 发生电流和/或反EMF电压和/或从其导出的变量。 这里提供了借助于配置在桥式电路的相应电动机相位的相位半桥中的续流二极管的当前状态来确定控制相关变量,在当前状态期间在 与半桥式并联连接的电源开关的相位半桥的导通状态为导通状态,与续流二极管串联连接的功率开关呈现阻塞状态。