Analysis of partial oscillation phenomenon in a digital-controlled three-phase inverter

被引：1
|
作者：
Lei Bo [1 ]
Xiao Guo-Chun [1 ]
Wu Xuan-Lu [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Elect Engn, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Peoples R China
来源：
ACTA PHYSICA SINICA | 2013年 / 62卷 / 04期
基金：
中国国家自然科学基金;
关键词：
three-phase inverter; digital-controlled; dynamic behavior; partial oscillation; LOW-FREQUENCY OSCILLATION; H-BRIDGE INVERTER; SLOW-SCALE; CONVERTER; INSTABILITY;
D O I：
10.7498/aps.62.040502
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A partial oscillation phenomenon in a digital-controlled three-phase inverter system, which is controlled by proportional controller in synchronous rotating reference frame, is analyzed in this paper. First, the discrete-time model of the system is derived. Then, a dynamics analysis scheme for this type of system is proposed. In addition, the underlying mechanism of the partial oscillation phenomenon occurring in this system is analyzed. The factors, which will cause the partial oscillation, are exactly predicted by analytical expressions. Finally, the theoretical results are verified by both simulations and experiments. These conclusions can provide an insight into the dynamics of the system.
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页数：11
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