基于脉冲输入电压的Buck-Boost变换器非线性特性研究

doi:10.16182/j.issn1004731x.joss.201705012

系统仿真学报 ›› 2017, Vol. 29 ›› Issue (5): 1021-1027.doi: 10.16182/j.issn1004731x.joss.201705012

基于脉冲输入电压的Buck-Boost变换器非线性特性研究

李小秋, 张小平

湖南科技大学海洋矿产资源探采装备与技术湖南省工程实验室,湘潭 411201

收稿日期:2016-11-02 修回日期:2017-01-03 出版日期:2017-05-08 发布日期:2020-06-03
作者简介:李小秋(1989-),男,湖南耒阳,硕士生,研究方向为电力电子与电力传动;张小平(1966-),男,湖南株洲,博士,教授,硕导,研究方向为电力电子与电力传动、智能控制等。
基金资助:
国家自然科学基金(51477047),湖南省研究生科研创新项目(CX2015B487)

Study on Nonlinear Characteristics of Buck-Boost Converter in Pulse Input Voltage

Li Xiaoqiu, Zhang Xiaoping

Hunan Province Engineering Laboratory of Marine Mineral Resources Exploration Equipment and Technology,Hunan University of Science and Technology, Xiangtan 411201, China

Received:2016-11-02 Revised:2017-01-03 Online:2017-05-08 Published:2020-06-03

摘要/Abstract

摘要： 为研究Buck-Boost变换器在脉冲输入电压作用下的非线性特性,建立了该变换器的离散迭代非线性映射模型,分别获得了该变换器输出电压随电感、电容和电阻变化时的分岔混沌图,分析了该变换器的分岔混沌现象,同时与该变换器在直流输入电压作用下的分岔混沌现象进行了对比分析,结果表明：稳态时该变换器在脉冲输入电压作用下比在直流输入电压作用下的分岔参数变化范围更小,并且更早地进入到混沌状态,这对于保证Buck-Boost变换器的稳定运行及混沌控制具有重要的指导意义。

关键词: Buck-Boost变换器, 非线性特性, 脉冲输入电压, 分岔, 混沌

Abstract: To study on the nonlinear characteristics of the Buck-Boost converter in pulse input voltage, the nonlinear model with discrete and iterative was deduced, and the bifurcation and chaos diagram that reflected the output voltage of the converter changes with the inductance, capacitance and resistance respectively was obtained, which analyzed the bifurcate and chaotic phenomena of the converter, and at the same time, compared with that in the DC input voltage. The results show that, in a steady state the variation range of bifurcation parameter of the converter in the pulse input voltage is smaller and is earlier to get into the chaotic state than that in the DC input voltage, which are of great significance for the steady operation of the Buck-Boost converter and its chaos control.

Key words: Buck-Boost converter, nonlinear characteristics, pulse input voltage, bifurcation, chaos

中图分类号:

TM46

李小秋, 张小平. 基于脉冲输入电压的Buck-Boost变换器非线性特性研究[J]. 系统仿真学报, 2017, 29(5): 1021-1027.

Li Xiaoqiu, Zhang Xiaoping. Study on Nonlinear Characteristics of Buck-Boost Converter in Pulse Input Voltage[J]. Journal of System Simulation, 2017, 29(5): 1021-1027.

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基于脉冲输入电压的Buck-Boost变换器非线性特性研究

Study on Nonlinear Characteristics of Buck-Boost Converter in Pulse Input Voltage

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