Stability Analysis of DC MicrogridWith Virtual Inertia Control

被引：0

作者：

Zhu X. ^{[1
]}

Meng F. ^{[1
]}

机构：

[1] State Key Laboratory of Alternate Electrical Power System With Renewable Energy Sources, North China Electric Power University, Baoding, 071003, Hebei Province

来源：

Dianwang Jishu/Power System Technology | 2020年 / 44卷 / 01期

关键词：

DC microgrid; Small signal model; Stability; Virtual inertia control;

D O I：

10.13335/j.1000-3673.pst.2019.0786

中图分类号：

学科分类号：

摘要：

In order to explore the impact of different types of virtual inertia controls on DC microgrid stability, small signal models of converters in power source side and load side are established firstly in this paper. The dynamic response and impedance characteristics of the grid-side and the battery-side interfaced converters are analyzed respectively, when different virtual inertia control strategies are adopted. Considering the stability issues caused by multi-converter interaction, an equivalent impedance model of DC microgrid is built. Then, based on impedance matching principle, the influence of virtual inertia controller parameters and system parameters on system stability is analyzed for different control modes. According to stability analysis results, it is concluded that a better dynamic characteristic and stability margin can be obtained when the virtual generator type inertial control is applied to battery side converter. Finally, a DC microgrid simulation model is established on Matlab Simulink and RT-LAB real time simulation platform respectively, and relevant theoretical analysis is verified. © 2020, Power System Technology Press. All right reserved.

引用

页码：208 / 216

页数：8

共 18 条

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