摘要
当旋转磁场电机用作拖动电动机时,转矩的产生和控制就需要得到特殊的考虑。举例来说,就是用定子电压矢量,还是用定子电流矢量来表示产生转矩的变量,取决于给电动机供电的静止变换器是改变电压,还是改变电流。本文描述旋转磁场电机作为感应电动机时的磁场定向原理,这是一种新的闭环控制方法。文中表明,需要如何影响这些变量才能使转矩得到瞬时的、阻尼得很好的调整,而又不受感应电动机固有特性的影响。
When rotating-field machines are employed as drive motors,the question of torque generation and control requires special consideration. It is,for instance,possible to use the vector of the stator voltage or the vector of the stator current as the manipulated variable for the torque,depending on whether the static converter supplying the motor provides a variable voltage or a variable current. This paper describes the principle of field orientation-a new closed-loop control method for rotating-field machines-by way of reference to an induction motor. It is shown how these manipulated variables must be influenced to provide instantaneous and well-damped adjustment of the torque independently of the inherent characteristics of an induction motor.
出处
《电力电子》
2004年第2期26-28,共3页
Power Electronics
