公开(公告)号：US06879130B2

公开(公告)日：2005-04-12

申请号：US10715857

申请日：2003-11-19

申请人： Yasusuke Iwashita ,  Takahiro Akiyama ,  Junichi Tezuka

发明人： Yasusuke Iwashita ,  Takahiro Akiyama ,  Junichi Tezuka

IPC分类号： H02P21/00 ,  H02P21/08 ,  H02P27/04 ,  H02P3/36

CPC分类号： H02P21/10 ,  H02P21/09

摘要： A controller for a vector control of an induction motor, which is capable of easily determining a rotor resistance for use in calculation of a slip frequency. A temperature sensor is provided for detecting a temperature of a stator. Information on relation between the rotor temperature and the rotor resistance predetermined based on measurement is stored in a table. In driving the induction motor, the rotor resistance for the stator temperature detected by the temperature sensor is read from the table. A torque command I2 is divided by a magnetic flux command Φ2 and the obtained quotient is multiplied by the read value of the rotor resistance to obtain the slip frequency ωs, so that the vector control is performed based on the obtained slip frequency ωs. The value of the rotor resistance is easily determined by simply referring the table without complicated calculation. Since the stored information on the rotor resistance are based on measured values, a more precise value of the slip frequency is obtained to realize a precise vector control of the induction motor.

摘要翻译： 用于感应电机的矢量控制的控制器，其能够容易地确定用于计算滑差频率的转子电阻。 设置有用于检测定子的温度的温度传感器。 关于转子温度与基于测量值预定的转子电阻之间的关系的信息存储在表中。 在驱动感应电动机时，从表中读取由温度传感器检测的定子温度的转子电阻。 将转矩指令I2除以磁通指令Phi2，将所得到的乘数乘以转子电阻的读取值，得到转差频率ω，从而基于得到的转差频率ωo进行矢量控制。 通过简单地参考该表而不需要复杂的计算，可容易地确定转子电阻的值。 由于存储的关于转子电阻的信息基于测量值，所以获得更精确的转差频率值以实现感应电动机的精确矢量控制。