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Buck型变换器自适应有限时间降压控制算法研究

杨晨 程盈盈 都海波 王金平 何怡刚

杨晨, 程盈盈, 都海波, 王金平, 何怡刚. Buck型变换器自适应有限时间降压控制算法研究. 自动化学报, 2016, 42(2): 315-320. doi: 10.16383/j.aas.2016.c150446
引用本文: 杨晨, 程盈盈, 都海波, 王金平, 何怡刚. Buck型变换器自适应有限时间降压控制算法研究. 自动化学报, 2016, 42(2): 315-320. doi: 10.16383/j.aas.2016.c150446
YANG Chen, CHENG Ying-Ying, DU Hai-Bo, WANG Jin-Ping, HE Yi-Gang. An Adaptive Finite-time Control Algorithm for Buck Converter Systems. ACTA AUTOMATICA SINICA, 2016, 42(2): 315-320. doi: 10.16383/j.aas.2016.c150446
Citation: YANG Chen, CHENG Ying-Ying, DU Hai-Bo, WANG Jin-Ping, HE Yi-Gang. An Adaptive Finite-time Control Algorithm for Buck Converter Systems. ACTA AUTOMATICA SINICA, 2016, 42(2): 315-320. doi: 10.16383/j.aas.2016.c150446

Buck型变换器自适应有限时间降压控制算法研究

doi: 10.16383/j.aas.2016.c150446
基金项目: 

国家自然科学基金 51577046

国家自然科学基金 61304007

国家自然科学基金 51407054

教育部博士点基金项目 20130111120007

详细信息
    作者简介:

    杨晨  合肥工业大学电气与自动化工程学院硕士研究生.主要研究方向为电力电子控制.E-mail:yang_chen92@163.com

    程盈盈  合肥工业大学电气与自动化工程学院助理研究员.主要研究方向为非线性系统控制和电力电子控制.E-mail:zoeych@126.com

    王金平  合肥工业大学电气与自动化工程学院副教授.主要研究方向为开关变换器拓扑及控制方法研究.E-mail:waupter919@163.com

    何怡刚  合肥工业大学电气与自动化工程学院教授.主要研究方向为电路理论及其应用.E-mail:18655136887@163.com

    通讯作者:

    都海波  合肥工业大学电气与自动化工程学院副教授.主要研究方向为非线性系统控制理论及应用.本文通信作者.E-mail:haibo.du@hfut.edu.cn

An Adaptive Finite-time Control Algorithm for Buck Converter Systems

Funds: 

National Natural Science Foundation of China 51577046

National Natural Science Foundation of China 61304007

National Natural Science Foundation of China 51407054

Ph.D. Programs Foundation of Ministry of Education of China 20130111120007

More Information
    Author Bio:

    Master student at the School of Electrical Engineering and Automation, Hefei University of Technology. His main research interest is power electronics control

    Assistant professor at the School of Electrical Engineering and Automation, Hefei University of Technology. Her research interest covers nonlinear system control and power electronics control

    Associate professor at the School of Electrical Engineering and Automation, Hefei University of Technology. His research interest covers topology and control method of switching converters

    Professor at the School of Electrical Engineering and Automation, Hefei University of Technology. His research interest covers circuit theory and its applications

    Corresponding author: DU Hai-Bo Associate professor at the School of Electrical Engineering and Automation, Hefei University of Technology. His research interest covers nonlinear system control and its applications. Corresponding author of this paper.
  • 摘要: 针对负载未知情况下Buck型DC-DC变换器系统, 基于有限时间控制技术和自适应控制技术, 提出了一种新的快速降压控制算法.首先, 基于时间尺度变换, 对系统的平均状态空间方程进行变换; 然后, 利用饱和有限时间控制理论设计出一类新的快速降压控制算法, 以实现输出电压在有限时间内收敛到参考电压.由于控制器设计过程中考虑了饱和约束条件, 使得变换器的占空比函数满足0到1之间的约束条件.对于负载未知情况, 设计了有限时间观测器以估计未知负载, 最终得到自适应式的有限时间控制算法.与PI控制结果进行了仿真对比, 验证了所提出的控制算法既具有快速的调节性能, 又具有较强的抗负载变化性能.
  • 图  1  变换器电路图

    Fig.  1  Buck converter circuit

    图  2  自适应有限时间电压调节控制算法实现框图

    Fig.  2  The block diagram of adaptive finite-time voltage control algorithm

    图  3  两种控制算法作用下输出电压响应曲线 (1 s时, 参考电压由8 V $\to$ 5 V)

    Fig.  3  The response curves for output voltage under two control algorithms (At 1 second, reference voltage is from 8 V $\to$ 5 V.)

    图  4  两种控制算法作用下输出电压响应曲线 (0.5 s时, 负载电阻由30 $\Omega\to15 \Omega$ ; 1 s时, 负载电阻由15 $\Omega\to30 \Omega$ )

    Fig.  4  The response curves for output voltage under two control algorithms (At 0.5 second, load resistance is from 30 $\Omega\to15 \Omega$ ; at 1 second, load resistance is from 15 $\Omega\to30 \Omega$ .

    图  5  负载估计值响应曲线

    Fig.  5  The response curve for load estimation

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出版历程
  • 收稿日期:  2015-07-08
  • 录用日期:  2015-11-06
  • 刊出日期:  2016-02-01

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