|本期目录/Table of Contents|

[1]冯全源,严宏举.一种变参数比例积分控制 BUCK 变换器设计[J].电机与控制学报,2016,20(05):68-76.[doi:10. 15938 / j. emc. 2016. 05. 010]
 FENG Quan-yuan,YAN Hong-ju.Design of variable parameter proportional integral controlled BUCK converter[J].,2016,20(05):68-76.[doi:10. 15938 / j. emc. 2016. 05. 010]
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一种变参数比例积分控制 BUCK 变换器设计(PDF)
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
20
期数:
2016年05
页码:
68-76
栏目:
出版日期:
2016-05-02

文章信息/Info

Title:
Design of variable parameter proportional integral controlled BUCK converter
作者:
冯全源 严宏举
( 西南交通大学 微电子研究所,四川 成都 611756)
Author(s):
FENG Quan-yuan YAN Hong-ju
 ( Institute of Microelectronics,Southwest Jiaotong University,Chengdu 611756,China)
关键词:
比例积分 扰动 控制方法 变参数 PI 控制器 前馈补偿 扰动观测器 收敛速度
Keywords:
proportional integral disturbance control method feed-forward compensation variable param-eters PI controller disturbance observer convergence rate
分类号:
TM 46
DOI:
10. 15938 / j. emc. 2016. 05. 010
文献标志码:
A
摘要:
BUCK 变换器中存在诸如系统参数不确定、输入电压变化、输出负载变化等多种扰动,这些 扰动对 BUCK 变换器的输出有很大影响,而采用传统的比例积分控制( proportional integral,PI) 方法 很难取得满意的控制效果。为此,在传统的 PI 控制策略的基础上,提出了变参数比例积分( varia-ble parameters proportional integral,VAPI) 控制策略以解决系统干扰的问题。由于 VAPI 控制器不仅 具有传统 PI 控制器瞬态响应速度快和消除静态误差等的优点,同时还能在不同的阶段调整相应的 参数,使得 BUCK 变换器在每个阶段都有更好的特性。首先用变参数比例积分器替换常规的比例 积分器,然后设计扰动观测器观测出参数摄动与负载变化带来的系统扰动,将其作为补偿量补偿 到前馈通道,提高系统的收敛速度与抗扰动能力,最后通过仿真和实验,分别验证了该算法的有效性。
Abstract:
There are a variety of disturbances existing in the BUCK converter,including uncertain param-eters,input voltage variation and load changes. These disturbances have a significant impact on output BUCK converter. By using traditional proportional integral ( PI) control the method,it is difficult to a-chieve satisfactory control effect. By the traditional PI control method it is difficult to obtain satisfactory performance. Based on the traditional PI control strategy( variable parameters proportional integral,VA-PI) control strategy was proposed to address the problem of interference system. Since VAPI controller not only has the advantage of traditional PI controller fast transient response and eliminating static error, etc. ,but also adjusts the corresponding parameters at different stages,so BUCK converter in each stage has better characteristics. Conventional proportional integrator was replaced by a first variable parameter proportional integral,and the disturbance observer was designed to observe the parameter perturbation and load variations caused by system disturbances,as compensation to compensate feedforward channel and to improve the convergence speed of the system and disturbance rejection. Finally,simulation and experi-ments proved the validity of the algorithm respectively.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2016 - 03 - 20
基金项目: 国家自然科学基金( 61271090) ; 四川省科技支撑计划项目( 2015GZ0103)
作者简介: 冯全源( 1961—) ,男,博士,教授,博士生导师,研究方向为数字、模拟及射频集成电路设计;
严宏举( 1991—) ,男,硕士研究生,研究方向为模拟集成电路设计和滑模控制器的设计。
更新日期/Last Update: 2016-06-26