Indices Relating to Variable Renewable Penetration Level For Preliminary Microgrid Stability Assessment
Résumé
This article proposes new indices for microgrid
stability assessment. Various definitions of renewable penetration
level in the literature are firstly reviewed and their influence on
power system stability is discussed. It is found that the limit of
variable renewable penetration varies on a case-per-case basis.
Consequently, new indices are necessary as a guide in the design
and operations of microgrids. The new indices are introduced
based on practical requirements of maintaining power supply
and balance stability. The usability of the indices is then
validated with the results from the literature, which has
confirmed the practicability of the indices for microgrid planning
and operations.