Stability Analysis for Grid-Connected Three-phase Inverter with LCL Filters

被引：0
|
作者：
Kato, Toshiji [1 ]
Inoue, Kaoru [1 ]
Akiyama, Yusuke [1 ]
Ohashi, Koki [1 ]
机构：
[1] Doshisha Univ, Dept Elect Engn, Kyotanabe, Kyoto 6100321, Japan
来源：
2015 IEEE 16TH WORKSHOP ON CONTROL AND MODELING FOR POWER ELECTRONICS (COMPEL) | 2015年
关键词：
grid-connected inverter; stability analysis; impedance method; frequency characteristics; parameter errors; interval analysis;
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：
A grid-connected inverter is indispensable, for example, for photovoltaic power generation and smart grid systems, and it must be designed and operated stably. This paper proposes a new simple stability analysis method based on a z-domain impedance method for three-phase inverter with a digital control. Then it also proposes a new stability analysis method which considers parameter tolerances. It is a sort of the tolerance analysis based on the Monte Carlo method. The frequency characteristics are computed numerically by a discrete transfer function with Matlab. The computed impedances and stability analysis results are verified both by simulation and by experiment.
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页数：7
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