Discrete-Time Modeling and Stability Analysis of Grid-Connected Inverter Based on Equivalent Circuit

被引：0
|
作者：
Wu, Xuanlyu [1 ]
Xiao, Guochun [1 ]
Lu, Yong [1 ]
Chen, Fengwen [1 ]
Lu, Dapeng [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：
2015 THIRTIETH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC 2015) | 2015年
关键词：
Digital control; Discrete-time modeling; Bifurcation; DC-DC CONVERTER; POWER CONVERTERS; MAPS; BIFURCATIONS; PREDICTION; CONTROLLER; SYSTEMS; DESIGN;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
This paper presents a simplified discrete-time modeling and stability analysis method for digital controlled grid-connected inverters. Based on state-space average approximation, the dynamic of the original grid-connected inverter system is analyzed using the discrete-time model of the corresponding state-space average equivalent circuit. Compared to the conventional discrete-time modeling, this new approach has almost the same reliability and accuracy in stability prediction. In addition, the new model is more convenient for digital control design than the conventional discrete-time model due to its obvious simplicity. The simplified discrete-time modeling approach is validated by simulation and experiment.
引用
收藏
页码：1222 / 1226
页数：5
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