同步电机功角δ的控制方法

The Control Method of Torque Angle δ of Synchronous Motor

同步电机由于其自身的诸多优点,越来越多的被应用在工农业生产中。特别是高压大容量的同步电机传动,起到了改善工艺,节能降耗的效果。针对同步电机的特点,目前已经有很多种调速控制方法,像传统的LCI控制,磁场定向的矢量控制,定子电流磁场分量补偿法等等。本文针对同步电机突加负载时容易造成δ角震荡的缺点,提出了直接δ角控制方法,给出了两种δ角控制方案和其计算机仿真图形。仿真结果表明,控制效果达到了预期目标。

Synchronous motor has its own advantage, and is used widely in the industry and agriculture domains, especially in high-voltage and large capacity transmission domain. It has achieved the goals of accuracy control and saving the energy. According to synchronous motor＇s characteristics, there are some velocity modulation control methods, such as the traditional LCI control, the magnetic field direction detection vector control, the magnetic field component of the stator current compensation method and so on. To solve the problem of synchronous motor, which the angle δ will shake when the loact is added, the aricle proposes a method called direct angle δ control and gives some scheme to control the angle δ. The effect is quite obvious that we can see through the simulation result.