Modeling and Stability Analysis of DC Microgrid with Constant Power Loads

被引：0
|
作者：
Wang, Yijing [1 ]
Wei, Fengxuan [1 ]
Zuo, Zhiqiang [1 ]
机构：
[1] Tianjin Univ, Sch Elect & Informat Engn, Tianjin Key Lab Proc Measurement & Control, Tianjin 300072, Peoples R China
来源：
2021 PROCEEDINGS OF THE 40TH CHINESE CONTROL CONFERENCE (CCC) | 2021年
基金：
中国国家自然科学基金;
关键词：
DC/DC converters; Constant power loads; Small signal model; Droop control; Stability analysis; CONVERTER; SYSTEM;
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：
This paper presents modeling and stability analysis of droop controlled converter-based DC microgrids with constant power loads. The closed-loop control system is constituted by double loop control and droop control. Then a linearized small signal model of DC/DC boost converters with controller is derived, which can be easily extended to multiple connected converter system. In terms of this small signal model, stability and parametric sensitivity analysis are carried out with parameter variation according to the distribution of eigenvalues. Moveover, the Hopf bifurcation is identified when the system enters unstable operation states. Simulation results are provided to demonstrate the validity of the developed model and stability analysis in this paper.
引用
收藏
页码：6799 / 6805
页数：7
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