发动机测试台循环水温度智能混合控制  

Intelligent Combined Control Strategy Used for Engine Test System Circulating Water Temperature Regulation

作　　者：徐毅[1] 

机构地区：[1]南京工程学院,江苏南京210013

出　　处：《计算机测量与控制》2005年第10期1072-1073,1118,共3页Computer Measurement &Control

摘　　要：介绍了发动机测试台循环水温度控制对象的建模,针对大滞后强耦合的特点,构造了一种新型的智能混合控制器,在近似解耦的基础上,利用专家控制思想,将Fuzzy和PID两种控制算法相结合,根据温度误差和误差变化率实现选择控制,避免了过大的超调量,减小了静态误差,提高了系统稳定性;经实际使用表明,达到了发动机的测试需求。This paper introduces the modeling method of engine test system circulating water temperature control. A novel intelligent combined controller is constructed in view of the feature of large delay and strongly coupled. According to the temperature error and the variety rate of error, Fuzzy and PID algorithms are combined together, based upon the expert control thought and de-coupled model. So the system can avoid the dynamic overshoot, reduce the static error, and improve the system stability. The fact results demonstrate that the strategy is usable and can satisfy the demands of engine test.

关 键 词：发动机 智能混合控制 FUZZY PID 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]