带饱和电感的移相全桥软开关变换器的研究  

Research on a Phase-shift Full Bridge Soft Switching Converter with Saturable Inductor

作　　者：马佳睿 陈力 MA Jiarui;CHEN Li(No.91404 Troops of PLA,Qinhuangdao 066000;No.31658 Troops of PLA,Xining 810000)

机构地区：[1]91404部队 [2]31658部队

出　　处：《舰船电子工程》2019年第4期172-176,182,共6页Ship Electronic Engineering

摘　　要：由于全桥软开关变换器为强非线性时变系统,工作特性复杂,传统的PID控制器不具有在线自整定功能,控制效果较差。为了解决传统PID控制系统的动态响应速度慢、突加负载时电压跌落大的问题,提出了采用PID参数模糊自整定控制变换器。通过分析带饱和电感的移相全桥变换器工作过程,给出了几个重要参数的设计原则,利用Matlab/Simulink控制器超调量小,调节时间短,加快系统的动态响应速度,有效地减小了负载突变时输出电压的波动。Because of strongly nonlinear time-varying system of the full-bridge soft switching converter with complex working characteristics,traditional PID controllers do not have online self-tuning function and their poor control effect.In order to solve the traditional PID control system’s dynamic response speed slow,the problem of large load voltage drop,using the adaptive fuzzy PID controller.The working process and several important parameters are discussed deeply based on the analysis of the converter working principle.The simulation results based on Matlab/Simulation prove that the dynamic response of the system can be improved with this improved control strategy.Besides,the voltage fluctuation is decreased effectively when load change.

关 键 词：移相全桥 饱和电感 软开关 模糊自适应PID控制 

分 类 号：TN624[电子电信—电路与系统]