DC/DC变换器的变结构模糊控制研究  

Study of variable structure fuzzy control for DC/DC converter

作　　者：金鑫嘉[1] 张逸成[1] 姚勇涛[1] 吴璐璐[1] 

机构地区：[1]同济大学电信学院,上海201804

出　　处：《电子技术应用》2008年第10期78-82,共5页Application of Electronic Technique

摘　　要：对不同类型的模糊PID控制器(模糊P控制器、模糊PD控制器、模糊PI控制器、模糊PID控制器)在DC/DC变换器中的应用作了全面的研究。目前,模糊PI控制器应用得最为广泛,然而在其控制作用下,DC/DC变换器的输出电压通常会超调,并且当响应时间较短时有很大的冲击电流尖峰。探讨一种变结构模糊控制器,这种控制器将有效地克服模糊PI控制器的上述不足。基于Matlab/Simulink对应用变结构模糊控制器控制的DC/DC变换器系统进行了计算机仿真。仿真结果表明,变结构模糊控制器控制拥有较好的动态特性和稳态性能。This paper presents a comprehensive study of different types of Fuzzy-PID controllers, such as Fuzzy-P, Fuzzy- PD, Fuzzy-PI, and Fuzzy PID, for DC-DC converter. Fuzzy-PI Controllers are the most popular. However,they generally give overshoot in output voltage and high initial current especially when rise time of response is reduced. A Variable Structure Fuzzy Logic Controller （VS-FLC） is proposed in this paper to overcome these disadvantages of Fuzzy-PI Controllers. Computer simulations are performed to investigate the performance of DC-DC Converter system with proposed variable structure FLC. And better starting and steady state performance are obtained.

关 键 词：模糊控制 DC/DC PID控制 MATLAB 

分 类 号：TN624[电子电信—电路与系统] TP273.2[自动化与计算机技术—检测技术与自动化装置]