摘要
本文从一般位置电液伺服系统的组成 ,引出了全状态反馈电液伺服系统的框图 ,并对该系统的液压部分的特性进行分析 ,推导出系统的传递函数。由于状态反馈电液伺服系统的响应极易受到使用条件和状况的影响 ,本文利用模糊控制的概念 ,在系统中加入一模糊变增益控制 ,可以提高系统克服诸如调节对象负载变化等一类干扰的能力 ,有效地抑制了系统动态参数变化的影响 ,明显地提高了系统的鲁棒性。
A full order state feedback electrio-hydraulic servo system is prone to be affected by the changing of its working condition. With the help of concept of fuzzy control, we applied a changeable gain controller on the system. From final result we conclude that by using this method we can improve the ability to overcome interference like the load change of controlled object of the system. Although we only use a simple fuzzy arithmetic in our example, it is obvious that there is great improvement on robustness of the system.
出处
《机床与液压》
北大核心
2003年第5期171-172,112,共3页
Machine Tool & Hydraulics
