模糊PID控制DC-DC转换器设计与仿真  

Design and Simulation of Fuzzy PID Control for DC-DC Converter

作　　者：甘家梁[1] 王光伟[1] 徐翠琴[1] 李骥[1] 

机构地区：[1]湖北工程学院计算机与信息科学学院,湖北孝感432100

出　　处：《计算机仿真》2014年第10期386-389,418,共5页Computer Simulation

基　　金：国家自然科学基金项目(61370092);湖北工程学院科技项目(Z2013010)

摘　　要：在DC/DC变换器优化动态特性的研究中,应用改进的模糊控制算法将PID算法和模糊逻辑算法相结合,形成了一种新的智能控制算法,所提出的方法不同于以前的模糊控制设计方法,系统没有去模糊化模块,具有模糊控制策略的优点,解决了模糊PID控制DC-DC转换器的去模糊化过程的计算的复杂性,并且能够保证控制系统的全局稳定性,可使转换器的输出电压,在有负载和电源电压干扰时,具有优良的动态响应。通过使用一个低成本的8位微控制器对所提出模糊PID控制器仿真,实验结果证明了上述方法和结构的可行性和优越性。The terminal characteristics of DC/DC are intrinsic characteristics, an improved fuzzy PID controller design method was proposed based on Fuzzy logic control and PID control for the complexity and time - varying of DC - DC converters. With the strongpoint of fuzzy logic control, which is different from the previous fuzzy control design methods, the proposed method requires no defuzzification module and the global stability of the proposed fuzzy control system can be guaranteed, and the new system can eliminate the effect of the large and small signal disturbances of the line voltage and the load on the output voltage. The proposed fuzzy PID controller was implemented by using a low -cost 8 -bit microcontroller, and the simulation and experimental results were given to demonstrate the effectiveness of the proposed method.

关 键 词：转换器 模糊系统 微控制器 稳定性分析 

分 类 号：TM131[电气工程—电工理论与新技术]