Nonlinear Chaotic Behavior Analysis of DC/DC Converter with High Frequency Z-source

LI Shan; CUI Sen; CHEN Yan; SI Wenxu

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Nonlinear Chaotic Behavior Analysis of DC/DC Converter with High Frequency Z-source

更新时间：2025-12-08

- Nonlinear Chaotic Behavior Analysis of DC/DC Converter with High Frequency Z-source
- Vol. 43, Issue 10, Pages: 3290-3299(2017)
- 作者机构：
  
  1. 重庆理工大学电气与电子工程学院
  2. 重庆市能源互联网工程技术研究中心
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：30 October 2017，
  
  Published：2017
- 稿件说明：
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LI Shan, CUI Sen, CHEN Yan, et al. Nonlinear Chaotic Behavior Analysis of DC/DC Converter with High Frequency Z-source[J]. 2017, 43(10): 3290-3299.
DOI：

LI Shan, CUI Sen, CHEN Yan, et al. Nonlinear Chaotic Behavior Analysis of DC/DC Converter with High Frequency Z-source[J]. 2017, 43(10): 3290-3299. DOI：

摘要

为了优化高频Z源变换器系统参数和提高系统稳定性

针对峰值电流控制下的高频Z源变换器分析其非线性特性。从其状态方程出发

建立该变换器的精确离散迭代映射模型

应用改进的雅克比矩阵法判断系统稳定性随高频Z源网络电感、电容等不同参数下变化规律

并确定系统的稳定运行区域

最后通过实验验证了理论分析的正确性。结果表明高频Z源变换器存在分岔、混沌等此类非线性现象;且当高频Z变换器的电路参数规定为稳定区域内时

将大大提高系统稳定性

进而为控制性能的提升提供参考。

Abstract

In order to optimize the system parameters and improve the stability of high frequency Z-source converter

the nonlinear characteristics of high frequency Z-source converter with peak current control are analyzed.Based on the equation of state

an accurate discrete iterative mapping model of the converter in continuous operation mode is established.The improved Jacobian matrix is applied to judge the law of stability of the system that changes with the reference current

Z-source network inductance capacitance

and other different parameters

and to determine the stable operating region of the system.Finally

the correctness of the theoretical analysis is verified by experiments.The results of this paper show that the nonlinear phenomena such as bifurcation and chaos exist in high frequency Z-source converter

when the circuit parameters of the high frequency Z-source converter are defined as the stable region

the stability of the system will be greatly improved

and the reference for the improvement of the control performance can be provided.

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