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公开(公告)号：US09880223B2
公开(公告)日：2018-01-30
申请号：US14295123
申请日：2014-06-03
Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
Inventor： David M. Messersmith , Douglas J. Bader , Haihui Lu , Thomas A. Nondahl , Zhenhuan Yuan
CPC classification number: G01R31/343 , G01R27/08 , G01R27/2611 , H02P23/14
Abstract: A method of estimating stator resistance of an induction motor is provided. The method includes applying voltage pulses through two phase paths of the motor for a plurality of electrical cycles to inject current in the motor, wherein the voltage pulses are applied until rotor flux of the motor is substantially stabilized and measuring stator voltage and stator current in response to the applied voltage pulses for each of the plurality of electrical cycles. The method also includes calculating the stator resistance based upon the measured stator voltages and the stator currents.
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公开(公告)号：US20140285230A1
公开(公告)日：2014-09-25
申请号：US14295123
申请日：2014-06-03
Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
Inventor： David M. Messersmith , Douglas J. Bader , Haihui Lu , Thomas A. Nondahl , Zhenhuan Yuan
CPC classification number: G01R31/343 , G01R27/08 , G01R27/2611 , H02P23/14
Abstract: A method of estimating stator resistance of an induction motor is provided. The method includes applying voltage pulses through two phase paths of the motor for a plurality of electrical cycles to inject current in the motor, wherein the voltage pulses are applied until rotor flux of the motor is substantially stabilized and measuring stator voltage and stator current in response to the applied voltage pulses for each of the plurality of electrical cycles. The method also includes calculating the stator resistance based upon the measured stator voltages and the stator currents.
Abstract translation: 提供了一种估计感应电动机的定子电阻的方法。 该方法包括通过电动机的两个相位路径施加电压脉冲多个电循环以在电动机中注入电流，其中施加电压脉冲直到电动机的转子磁通基本稳定并且响应于测量定子电压和定子电流 对于多个电循环中的每一个的施加的电压脉冲。 该方法还包括基于所测量的定子电压和定子电流来计算定子电阻。
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