摘要
模糊控制器中的模糊化过程作为精确的物理量到模糊量之间转换的中间环节是借助隶属函数来实现的。隶属函数选择得恰当，可以提高精确量到模糊量的转换精度，因而也就可以从根本上提高系统的控制精度。本文以电液位置伺服控制系统为研究对象，从理论和实验两个方面分析了隶属函数曲线的分布形状对模糊控制系统的控制性能的影响，归纳总结出了选择隶属函数曲线应该遵循的准则。
As an important part of fuzzy controller,fuzzification is fulfilled with membership functions.Appropriate membership functions can enhance the transfer accuracy from accurate state into the fuzzy one.Furthermore the high control accuracy and the good performance can be obtained.Based on the electrohydraulic position fuzzy control system,the influence of the shape of membership functions on the control performance is analyzed,and the rules for selecting membership functions are summarized from two aspects of theoretical analyses and experiments. [WT5”HZ〗
出处
《系统工程与电子技术》
EI
CSCD
1998年第7期54-58,共5页
Systems Engineering and Electronics
关键词
模糊控制系统
电液伺服阀
控制系统
Fuzzy control theory,Membership functions,Servo valve,Position control systems.
