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为了提高电动舵机系统的动态响应性能,文中提出了一种自适应变阻尼控制方法。首先,在分析舵机传递函数的基础上对其进行了简化;其次,分析了无阻尼自然频率和阻尼比对系统动态性能的影响;再次,结合常规PID控制结构简单、易于实现和遗传算法自适应能力强的优点,设计了基于自适应变阻尼控制算法的新型变阻尼控制器;最后,通过仿真结果对比,表明自适应变阻尼控制方法可以优化随动系统的动态响应性能,系统单位阶跃响应速度快,无超调。
In order to improve the dynamic response performance of the electric servo system, an adaptive variable damping control method is proposed in this paper. First of all, based on the analysis of the transfer function of the steering gear, it is simplified. Secondly, the influence of the undamped natural frequency and damping ratio on the dynamic performance of the system is analyzed. Thirdly, combining the conventional PID control structure with simple, easy to implement and genetic algorithm The new variable damping controller based on adaptive variable damping control algorithm is designed. Finally, the simulation results show that the adaptive variable damping control method can optimize the dynamic response performance of the servo system, the system unit step Fast response, no overshoot.