Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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改进无源延时反馈控制下Buck变换器分岔抑制研究

来源:电工电气发布时间:2022-10-25 13:25 浏览次数:333

改进无源延时反馈控制下Buck变换器分岔抑制研究

马闯,高志强,郭帅朝,张超
(天津理工大学 电气工程与自动化学院,天津 300384)
 
    摘 要:针对断续导通模式下的 Buck 变换器因负载参数敏感而引发的无预测性分岔现象,设计了一种以无源延时反馈控制为核心的改进无源控制方法。建立了 Buck 变换器在脉宽调制策略下的离散迭代映射数学模型,分析了非线性分岔行为的产生机理;以抑制强随机性分岔现象为目标,引入无源延时反馈控制策略,并替代传统比例积分矢量控制;为优化系统动态响应,提升系统波形质量,引入指数优化通道,形成改进无源反馈控制。通过 MATLAB/Simulink 仿真平台,搭建了 Buck 降压变换器物理拓扑仿真模型,验证分岔抑制情况,并设计不同工况进行多条件下的系统特性验证。仿真结果表明:改进无源反馈控制下的变换器系统既具备抑制分岔行为的抗扰能力,又可使系统输出波形质量佳的优质电能。
    关键词: Buck 变换器;断续导通模式;分岔现象;改进无源反馈控制
    中图分类号:TM46 ;TN624     文献标识码:A     文章编号:1007-3175(2022)10-0001-09
 
Research on the Situation of Bifurcation Suppression of Buck Converters
Under the Improved Passive Delay Feedback Control Method
 
MA Chuang, GAO Zhi-qiang, GUO Shuai-chao, ZHANG Chao
(College of Electrical Engineering and Automation, Tianjin University of Technology, Tianjin 300384, China)
 
    Abstract: This research proposed an improved passive control method based on passive delay feedback control to solve the unpredictability bifurcation phenomenon of Buck converter in intermittent conduction mode due to the sensitivity of load parameters. It constructed the discrete iterative mapping mathematical model of Buck converter under pulse width modulation strategy to analyze the generation mechanism of nonlinear bifurcation behavior. In addition, this paper introduced a passive delay feedback control strategy to replace the traditional proportional integral vector control for suppressing the strong stochastic bifurcation. Besides, it introduced an exponential optimization channel to form an improved passive feedback control for optimizing the dynamic response and improving the waveform quality of the system. Furthermore, this study built the physical topology simulation model of the Buck converter based on the MATLAB/Simulink simulation platform to verify the bifurcation suppression. It also designed different working conditions to check the system characteristics under multiple situations.The simulation result shows that the converter system under the improved passive feedback control not only has the anti-interference ability to suppress the bifurcation behavior, but also could make the system output high-quality electric energy with good waveform quality.
    Key words: Buck converter; intermittent conduction mode; bifurcation phenomenon; improve passive delay feedback control
 
参考文献
[1] 张勇,徐瑞东,李涛,等. 恒功率负载下 DC-DC 双向变换器分岔现象研究[J] . 工矿自动化,2016,42(2):61-66.
[2] BOROYEVICH Sushan, CVETKOVIC Igor, DONG Dong,et al.Future electronic power distribution systems-A contemplative view[C]//2010 12th International Conference on Optimization of Electrical and Electronic,2010.
[3] 纪任馨. 基于占空比补偿的三电平双 Buck 逆变器电压过零畸变控制策略[J] . 电子测量技术,2020,43(22):26-30.
[4] 张波,曲颖. 电压反馈型 Boost 变换器 DCM 的精确离散映射及其分岔和混沌现象[J] . 电工技术学报,2002,17(3):43-47.
[5] CHAKRABARTY K , PODDAR G , BANERJEE S .Bifurcation behavior of the buck converter[J].IEEE Transactions on Power Electronics,1996,11(3) :439-447.
[6] NUSSE H E , YORKE J A . Border-collision bifurcations including“period two to period three”for piecewise smooth systems[J].Physica D,1992,57:39-57.
[7] 谢玲玲,龚仁喜,卓浩泽,等. 电压模式控制不连续传导模式 boost 变换器切分岔研究[J] . 物理学报,2012,61(5):058401.
[8] 潘赛虎,曹秋娟,史国栋,等. 电流控制反激式变换器动力学特性研究[J] . 电测与仪表,2015,52(3):64-69.
[9] 张初文, 佟殿馨, 李鑫, 等. 基于随机扩频的 Buck-Boost 变换器分岔与混沌现象的仿真分析[J].电测与仪表,2017,54(11):19-25.
[10] 王瑶,许建平,周国华. 电压型控制 SIDO CCM Buck 变换器的统一离散迭代映射模型及稳定性研究[J] . 中国电机工程学报,2018,38(9):2717-2727.
[11] 郑连清,申滔,池俊锋. 断续导通模式下 Buck 变换器的混沌分析及其滑模控制[J] . 电力自动化设备,2012,32(7):30-35.
[12] 周宇飞,陈军宁,谢智刚,等. 参数共振微扰法在 Boost 变换器混沌控制中的实现及其优化[J]. 物理学报,2004,53(11):3676-3683.
[13] SAMANTA S, PATRA P, MUKHOPADHYAY S, et al.Optimal slope compensation for step load in peak current controlled dc-dc buck converter[C]//2008 13th International Power Electronics & Motion Control Conference,2008.
[14] 黄报星. 微分反馈控制与延迟微分反馈控制[J] .华中科技大学学报(自然科学版),2003,31(7):49-52.
[15] 何金梅,郑雪梅,王卫,等. Boost 变换器混沌现象的非奇异终端滑模控制方法[J] . 电工技术学报,2013,28(4):104-108.
[16] 张方樱,杨汝,龙晓莉,等.V2 控制 Buck 变换器分岔与混沌行为的机理及镇定[J] . 物理学报,2013,62(21):218404.
[17] 周群,徐懿,张金保,等. I2 控制 Buck 变换器的一阶动力学分析[J] . 电子科技大学学报,2016,45(3):387-392.
[18] 郑连清,彭一. 电压型 buck-boost 变换器的混沌控制[J]. 物理学报,2016,65(22):220502.
[19] 吕锋,彭一,赵亮宇,等. 电压型 Boost 变换器的混沌分岔现象及其控制[J]. 昆明理工大学学报(自然科学版),2018,43(1):55-60.