直流电源转换器系统的模糊跟踪控制  

The Fuzzy Control on the Dc-dc Buck Converter System

作　　者：李宁 LI Ning

机构地区：[1]淮南师范学院金融与数学学院,安徽淮南232038

出　　处：《淮南师范学院学报》2020年第5期134-136,共3页Journal of Huainan Normal University

基　　金：安徽省高等学校自然科学重点基金(KJ2016A666)。

摘　　要：针对未知直流电源转换器系统,提出一种模糊控制策略。利用模糊系统估计系统控制器,对系统中的未知控制系数,设计自适应率实现对未知控制系数的线上估计。设计的控制器仅涉及到系统信号,能保证闭环系统所有信号有界,并且对目标信号的逼近误差渐近收敛到一个设定区域内。最后通过数值仿真,验证该方法是简洁、有效的。For an unknown DC power converter system,a fuzzy control strategy is proposed.The fuzzy system is used to estimate the system controller.For the unknown control coefficient in the system,the adaptive rate is designed to realize the on-line estimation of unknown control coefficient.The designed controller only involves the system signals.The proposed controller can ensure that all signals in the closed loop system are bounded.Moreover,the approximation error to the target signal converges to a set neighborhood.Finally,through numerical simulation,the efficiency and conciseness of the proposed method are demonstrated.

关 键 词：直流电源转换器 模糊控制 未知控制系数 

分 类 号：G642.46[文化科学—高等教育学]