Conference paper Open Access

Terminal Capacitor Compensation Based Stability Design for DC Microgrids

Li, Fulong; Lin, Zhengyu; Chen, Alian; Wu, Jiande

This paper investigates the detailed elements of a DC microgrid that might cause instability, and proposes a stabilizing guidance based on the passive stability criterion. For illustration purpose, the terminal output impedance model of a source side power converter under double loop with droop control is built, and its frequency characteristics are analyzed. It is found that the instant high power absorption from the microgrid might make the source side power converter’s output to oscillate. The details of how the circuit and control elements in the source side impact the terminal impedance are illustrated. This paper shows that the stability of plug and play performance of DC microgrid can be guaranteed with the proposed enstabilization methods. A Matlab/Simulink model is used to validate the analysis.

Files (689.1 kB)
Name Size
ICDCM2019 Full Paper_1.pdf
md5:fa1368f1904f26c9074a5e440c5f5f7b
689.1 kB Download
34
19
views
downloads
All versions This version
Views 3434
Downloads 1919
Data volume 13.1 MB13.1 MB
Unique views 3232
Unique downloads 1919

Share

Cite as