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2. 发明公开

EP1914875A1 Control method and motorstarter device 有权转让
标题翻译： Steuerungsverfahren und Motorstartervorrichtung
公开(公告)号：EP1914875A1
公开(公告)日：2008-04-23
申请号：EP06122689.0
申请日：2006-10-20
申请人： ABB RESEARCH LTD.
发明人： Nolemo, Jan-Anders , Ek, Magnus , Lendenmann, Heinz , Kristensson, Jesper
IPC分类号： H02P3/18
CPC分类号： H02P3/18 , H02P1/26 , H02P1/42 , H02P23/20
摘要： This invention concerns a softstarter device adapted for controlling an electric motor connected to the device especially during a start or a stop of the motor. The softstarter device comprises calculating means for calculating a difference between a determined motor torque and a reference value for said motor torque, and calculating an error signal from the comparison between said calculated torque and the reference value to change the speed of said motor. The softstarter device also comprises means for reducing the speed of said motor and the rate of change of motor speed with respect to time during a stopping time interval is lower during a first part of the interval. The speed of said motor is reduced dependent on said error signal so that the rate of change of motor speed with respect to time during a stopping time interval varies at least between a first part of the time interval and a second part of the time interval.
摘要翻译：本发明涉及一种适于控制连接到该装置的电动机的软起动装置，特别是在马达的起动或停止期间。软起动器装置包括计算装置，用于计算所确定的电动机转矩与所述电动机转矩的参考值之间的差值，以及根据所计算的转矩和参考值之间的比较来计算误差信号，以改变所述电动机的速度。软起动器装置还包括用于降低所述电动机的速度的装置，并且在间隔的第一部分期间相对于停止时间间隔期间的电动机速度的变化率较低。所述电动机的速度取决于所述误差信号而减小，使得电动机速度相对于停止时间间隔期间的变化速率至少在时间间隔的第一部分和时间间隔的第二部分之间变化。

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