车载卫星天线用交流伺服系统设计

Design of AC Servo System of Satellite Antenna Used in Vehicle

为实现在运动车辆上收看卫星电视,设计了车载卫星天线用交流伺服系统。给出了方案的基本原理,并采用矢量控制对交流电机进行变频调速,以及位置、速度和电流反馈的三闭环调节器。确定了电流环、速度环和位置环的参数。仿真结果表明,所设计的交流伺服系统有良好的动态和抗干扰性能。

The AC servo system of mobile satellite antenna was designed for watching satellite TV program in a moving vehicle in this paper. The general principle of the scheme was given. The vector control for variable frequency changing of AC motor and three-loop controller of position, velocity and current feedback were adopted. The parameters of the current loop, velocity loop and position loop were determined. The simulation results showed that the AC servo system designed had good performance of dynamic and anti-interfere.