Abstract
A systematic, automatable, unified methodology is presented for the modeling of non-linear large-signal dynamics and eigenvalue analysis of microgrid systems. Unlike nodal-based simulators and typical state-variable methods that require Kirchhoff's current law analysis, a state-space model is systematically derived from the netlist of the equivalent qd microgrid circuit model. The model may be used to conduct time-domain simulations and analyze system response to large transients. Additionally, system eigenvalues may be analyzed with respect to inverter control gains and system parameters to assess small-signal stability and sensitivity. The dynamic model is verified against existing experimental results, and small-signal stability results are presented.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 93-111 |
| Number of pages | 19 |
| Journal | Electric Power Components and Systems |
| Volume | 40 |
| Issue number | 1 |
| DOIs | |
| State | Published - Nov 22 2011 |
| Externally published | Yes |
Keywords
- microgrid
- power system control
- power system dynamics
- power system stability
- simulation
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Mechanical Engineering
- Electrical and Electronic Engineering