摘要
本文在交流电机广义派克方程的基础上提出了一种定子磁通控制方法。这种方法把参数坐标系放在同步旋转磁通上,并使 d 轴与定子电压矢量重合,并根据磁通不变条件求得其动态控制规律。为实现上述控制规律,须观测某些派克方程状态变量。仿真和实验结果证明,此规律不但避免了传统矢量控制系统中繁杂的坐标变换问题,还可使得磁通和转矩的控制完全解耦。因此,在此基础上可方便地实现速度和位置控制。
The paper presents a stator flux control method of induction motor in which the reference frame is fixed to the synchronous field,the d-axis is oriented in the direction of stator voltage vector and then a relationship proper to the induction motor is developed. The simulation and experimental results show that,with this control strategy,it is possible to maintain the stator flux constant not only in steady state,but also during transients,thus realizing a completely decoupling control of the flux and the torque of the induction motor without using the rather complicated coordinate transformations.Finally, variable speed control and position servo system can be easily implemented.
出处
《电气传动》
北大核心
1990年第4期2-7,54,共7页
Electric Drive
关键词
异步电机
电压
矢量控制
供电
Induction motor
Voltage-oriented control
PWM
optimal control
