线性自抗扰控制在全桥DC–DC变换器中的应用
Application of linear active disturbance rejection control in full-bridge DC–DC converters
摘要点击 193  全文点击 201  投稿时间:2018-04-30  修订日期:2018-07-22
查看全文  查看/发表评论  下载PDF阅读器
DOI编号  10.7641/CTA.2018.80318
  2018,35(11):1610-1617
中文关键词  全桥DC–DC变换器  自抗扰控制  降阶模型  鲁棒性  
英文关键词  full-bridge DC–DC converters  active disturbance rejection control  reduced order models  robustness
基金项目  广东省科技计划项目(2015A010106004, 2016B090911003), 中央高校基本科研业务费专项资金项目(2018KZ05)资助.
学科分类代码  
作者单位E-mail
王孝洪 华南理工大学 xhwang@scut.edu.cn 
吴丰 华南理工大学  
HOANG Thi Thu Giang 华南理工大学 tranghoanganh2811@gmail.com 
潘志锋 华南理工大学  
曾健华 华南理工大学  
中文摘要
      针对DC–DC变换器在实际应用中会受到多种输入扰动、负载扰动及电磁扰动影响的问题, 本文结合全 桥DC–DC变换器的系统模型特点, 对传统线性自抗扰控制器进行了改进. 设计了基于降阶扩张状态观测器和以比 例控制作为误差反馈律的自抗扰控制器用于实际系统, 在确保系统性能的前提下优化了参数整定过程. 仿真和实 验结果表明, 该控制系统具有比传统PI控制系统更优的快速性、鲁棒性和适应性, 且大大简化了传统自抗扰控制器 设计过程中参数过多、取值困难的问题, 具有良好的发展前景.
英文摘要
      This paper is aimed at the problems of DC–DC converters in various applications, such as input disturbances, load disturbances and electromagnetic disturbances. The traditional linear active disturbance rejection control (LADRC) controller is improved according to the system model characteristics of full-bridge DC–DC converter. An ADRC controller based on reduced-order extended state observer and proportional control is designed for the actual system, and the parameter tuning process is optimized under the premise of ensuring system performance. Simulation and experimental results show that the control system has better speed, robustness and adaptability than traditional PI control systems. It greatly simplifies the problems of parameters selection in the design process of the traditional ADRC controllers