A Unified Technique for Dynamic Modeling and Stability Analysis of Microgrid Systems
Johnson, Brian B.
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https://hdl.handle.net/2142/14620
Description
Title
A Unified Technique for Dynamic Modeling and Stability Analysis of Microgrid Systems
Author(s)
Johnson, Brian B.
Issue Date
2010-01-06T16:19:53Z
Director of Research (if dissertation) or Advisor (if thesis)
Chapman, Patrick L.
Doctoral Committee Chair(s)
Chapman, Patrick L.
Department of Study
Electrical & Computer Eng
Discipline
Electrical & Computer Engr
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(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.
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