Abstract
A simplified linear state-space model for a multimachine power system is presented. The basic assumptions for the generators are the same as used in the well known Heffron-Phillips model for a single machine on an infinite bus. However, the model is structure-preserving and accounts for loads modelled as functions of voltage and frequency. The usefulness of the model in studying the dependence of small-disturbance stability on operating conditions, load model parameters and exciter gain is demonstrated. A detailed study of the one-machine special case is also given. This leads to a modification of the original Heffron-Phillips model to allow for a non-linear load rather than the usual impedance load.
| Original language | English |
|---|---|
| Pages (from-to) | 171-182 |
| Number of pages | 12 |
| Journal | International Journal of Electrical Power and Energy Systems |
| Volume | 12 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Jul 1990 |
| Externally published | Yes |
Keywords
- dynamic stability
- machine modelling
- modelling of energy systems-global