Interacting Bifurcation Phenomenon in Three-Phase Voltage Source Converter Connected to Non-ideal Power Grid

被引：0
|
作者：
Huang, Meng [1 ,2 ]
Tse, Chi K. [2 ]
Wong, Siu-Chung [2 ]
Ruan, Xinbo [3 ]
Wan, Cheng [3 ]
机构：
[1] Wuhan Univ, Wuhan 430072, Peoples R China
[2] Hong Kong Polytech Univ, Kowloon, Peoples R China
[3] Huazhong Univ Sci & Technol, Wuhan, Peoples R China
来源：
39TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY (IECON 2013) | 2013年
关键词：
Grid interaction; low-frequency instability; Hopf bifurcation; catastrophic bifurcation; three-phase voltage source converter; INVERTERS; SYSTEMS;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Three-phase voltage source converters are commonly used to convert ac power from a three-phase grid to a regulated dc voltage with controlled unity input power factor. However, the non-ideal power grid may drive the converter to enter a low-frequency instability region. As a result of the emergence of low-frequency oscillation, the stability boundary leading to a catastrophic bifurcation shrinks dramatically. Simulation results show the interaction of the low-frequency oscillation and the catastrophic bifurcation. Analytical calculations based on harmonic balance are adopted to show how the stability margin is affected.
引用
收藏
页码：8373 / 8378
页数：6
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