提出电动负载模拟器一种新的控制策略,目的是解决舵机运动带来的强扰动致使电动负载模拟器的跟踪速度和精度下降的问题。方法是在进行力矩控制的同时,将舵机和电动负载器的运动信息引入到控制系统中,使加载电机在进行力矩跟踪的同时同步跟踪舵机运动。仿真和试验结果表明:该方法使得闭环系统的静差小于1%,并且其正弦响应在12Hz时的幅差小于10%,相差小于10°。因此,该策略可以满足目前电动负载模拟器的工程使用需求。

A novel control strategy was proposed to solving the electric load simulator's external strong disturbance problem caused by fin servo movement, which will make the electric load simulator's tracking speed and accuracy decline. The core of method is to introduce the movement information of fin servo and electric load simulator into the controller while controlling the torque. These made the load motor not only track the torque command, but also synchronously follow the fin servo movement. The simulation and experiment results show that the controller can not only make steady error of the closed loop be less than 1%, but also make the error of amplitude be less than 10% and the error of phase be less than 10 degree when system is stimulated by 12Hz sine signal. So, the method is applicable to the electric load simulator.