基于FNNC的转速闭环变频调速系统研究  

The Study for Closed-loop Variable Frequency Speed Governing System Based on FNNC

作　　者：薛薇[1] 李永丽[1] 

机构地区：[1]天津大学

出　　处：《太原理工大学学报》2006年第6期691-694,共4页Journal of Taiyuan University of Technology

基　　金：天津市高等学校科技发展基金项目(20030514)

摘　　要：针对交流电动机这种复杂的被控对象,传统的PID控制器难以获得理想的控制效果。提出一种采用结构简单的BP网络构建的模糊神经网络控制器(FNNC),并将该控制器在VC++软件平台上编制成相应的控制算法,组成了由工控机为控制器的转速闭环变频调速系统。通过实际系统运行实验表明,笔者提出的基于FNNC的转速闭环变频调速系统,具有良好的动态性能和较强的抗干扰能力。The normal PID controller cannot obtain ideal effect toward a complicated controlled plant-AC motor, so this paper brings forward a FNNC controller based on BP network with simple structure and programs the relevant control arithmetic of FNNC on VC＋＋. The article set up the speed governing system of closed loop with varying frequency using industry computer as the controller. The experiment result shows the proposed speed governing system of closed loop with varying frequency based on FNNC possesses very good control characters such as dynamic performance, and disturbance rejection characteristics.

关 键 词：模糊控制 BP网络 变频调速 FNNC 非线性 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]