单相SPWM逆变器的分岔及混沌现象分析  

Study of Bifurcation and Chaos in Single-Phase SPWM Inverter

作　　者：王学梅[1] 张波[1] 

机构地区：[1]华南理工大学电力学院,广州510640

出　　处：《电工技术学报》2009年第1期101-107,共7页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(60474066);广东省自然科学基金(8251064101000014);863科研(2007AA05Z229)资助项目

摘　　要：以基本单相正弦脉宽调制(SPWM)逆变器为研究对象,采用迭代法建立一阶离散模型,应用频闪映射图、折叠图和分岔图,详细描述了系统出现的分岔和混沌现象,借助仿真给出了系统的稳定运行参数域,从时域及频域分析了分岔和混沌行为对系统性能的影响。本文的研究结果将混沌研究从DC/DC变换器推广到DC/AC变换器,为深入研究电力电子变换器的非线性行为打下了基础。A basic single-phase SPWM inverter of proportion control is studied in this paper. First, a one-dimension discrete model of sine inverter is established. Then stroboscopic sampling diagram, folded diagram and sampling bifurcation diagram are used to describe the bifurcation and chaos phenomena, and steady parameter area is derived by simulation. Lastly, the impact on system performance by bifurcation and chaos behavior is analyzed from the perspective of time domain and frequency domain. The study expands the chaos researches from DC/DC converters to DC/AC converters, and lay the foundation for the deep study of nonlinear dynamics in power electronics.

关 键 词：SPWM逆变器 分岔 混沌 离散映射 

分 类 号：TM463[电气工程—电器]