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

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Title: A Unified Technique for Dynamic Modeling and Stability Analysis of Microgrid Systems
Author(s): Johnson, Brian B.
Advisor(s): Chapman, Patrick L.
Contributor(s): Chapman, Patrick L.
Department / Program: Electrical & Computer Eng
Discipline: Electrical & Computer Engr
Degree Granting Institution: University of Illinois at Urbana-Champaign
Degree: M.S.
Genre: Thesis
Subject(s): microgrid microgrids power stability dynamic modeling modeling distributed generation
Abstract: 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.
Issue Date: 2010-01-06
Rights Information: Copyright 2009 Brian Johnson
Date Available in IDEALS: 2010-01-06
Date Deposited: December 2

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