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

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.

Name thesis:degree_name

M.S.

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Electrical & Computer Engr

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2010

Author dc:creator

• Johnson, Brian B.

Contributors dc:contributor

• Chapman, Patrick L.

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

Statement dc:rights

• Copyright 2009 Brian Johnson

Language dc:language

en

Handle dc:identifier

http://hdl.handle.net/2142/14620

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/14620