A Unified Technique for Dynamic Modeling and Stability Analysis of Microgrid Systems

microgrid;microgrids;power;stability;dynamic modeling;modeling;distributed generation

Johnson, Brian B. ; Chapman, Patrick L. ; Chapman ; Patrick L.

关键词: microgrid;    microgrids;    power;    stability;    dynamic modeling;    modeling;    distributed generation;   

Others  :  https://www.ideals.illinois.edu/bitstream/handle/2142/14620/Johnson_Brian.pdf?sequence=2&isAllowed=y

美国|英语

来源: The Illinois Digital Environment for Access to Learning and Scholarship

【 摘 要 】

This work presents a unified method for dynamic modeling and stability analysis of microgrid power systems. Using the automated state-model generation algorithm, a state-space model of the microgrid power system is derived. The model may be used to conduct time-domain simulations and analyze system response to large transients. Additionally, eigenvalues of the system may be analyzed with respect to inverter control gains to assess small-signal stability. The proposed methodology is verified for large-signal transient study and small-signal stability analysis using dual and single-inverter microgrid systems, respectively. The presented method is general and may be applied to any three-phase circuit topology and inverter control without the need to derive circuit state equations.