线性插值模糊控制及其在PLC上的实现  

Linear Interpolation Fuzzy Control and Its Application in PLC

作　　者：张红军[1] 张翔[1] 佟明明[1] 

机构地区：[1]中国空空导弹研究院,河南洛阳471009

出　　处：《计算机测量与控制》2008年第11期1632-1634,共3页Computer Measurement &Control

摘　　要：文章针对常规模糊控制器控制精度低的问题,提出了一种提高模糊控制器控制精度的方法;首先分析了常规模糊控制器存在的稳态控制精度差的原因,在此基础上给出一种通过在线查表插值算法提高模糊控制精度的方法及该算法在PLC上的实现,最后在液位控制系统上进行实验应用并和常规模糊控制器的控制效果进行了比较;结果表明,这种改进后的插值模糊控制器能有效消除系统稳态误差,提高模糊控制器的控制精度,而且易于在PLC上实现,有一定的实用价值。To counter the problem of lower controlling precision of fuzzy controller, this paper puts forward a method to improve controlling precision of fuzzy controller. First, the paper analyses the reason of lower controlling precision of conventional fuzzy controller, then puts forward interpolation algorithm to improve controlling precision of fuzzy controller and gives its application in PLC. The algorithm is applied in liquid level control system and is compared with conventional fuzzy controller. The improved fuzzy controller can really eliminate stable state error and improve the controlling precision. Its design is simple and its realization is easy in PLC, it has certain practical application value.

关 键 词：模糊控制 控制精度 线性插值 PLC 

分 类 号：TP273.4[自动化与计算机技术—检测技术与自动化装置]