Modeling and Analysis of Coexisting Slow- and Fast-Scale Instabilities in Current-Mode PI-Controlled H-Bridge Inverter

被引：0

作者：

Wu, Xuanlyu ^{[1
]}

Li, Weilin ^{[1
]}

Zhang, Ruihong ^{[1
]}

Wu, Xiaohua ^{[1
]}

Zhang, Xiaobin ^{[1
]}

Wang, Bei ^{[2
]}

Xiao, Guochun ^{[3
]}

Zhang, Shuai ^{[3
]}

机构：

[1] Northwestern Polytech Univ, Dept Elect Engn, Xian, Shaanxi, Peoples R China

[2] China XD Grp, Xian XD Elect Res Inst Co Ltd, Xian, Shaanxi, Peoples R China

[3] Xi An Jiao Tong Univ, Sch Elect Engn, Xian, Shaanxi, Peoples R China

来源：

THIRTY-THIRD ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC 2018) | 2018年

基金：

中国国家自然科学基金;

关键词：

discrete-time model; bifurcation; digital control; state-space average; STABILITY ANALYSIS; CONVERTER; BIFURCATIONS; MAPS;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The characteristic of current-mode H-bridge inverter under PI-control is much more complex than under P-control. When system parameters are not properly designed, the system not only has the potential of slow-scale instability (Hopi), but also has the possibility of fast-scale instability (Period doubling). In previous works on discrete-time modeling and analysis, P-controller is always taken as object of study for simplicity, which is different from practical applications where PI-controller is often adopted. In this paper, a simplified discrete-time model of current-mode H-bridge inverter under PI control is derived. Based on analysis of the proposed model, coexisting slow- and fast-scale instability phenomenon and mechanism have been revealed. Moreover, high accuracy stability boundary has been derived and verified by experiment.

引用

页码：2910 / 2913

页数：4

共 24 条

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INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS, 2016, 26 (12):
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[7] Fast-Scale and Slow-Scale Subharmonic Oscillation of Valley Current-Mode Controlled Buck Converter
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