This paper presents the application of a
probabilistic multi-stability assessment of a modified two-area
system under the presence of low and high uncertainty sources.
The stability of the network is assessed under four stability
regimes: frequency, small-signal rotor angle, large-signal rotor
angle, and long-term voltage. The probabilistic assessment is
carried out using Monte Carlo simulation. Two cases
considering low and high uncertainty are investigated. The
obtained results are presented in the form of parallel coordinate
plots so that the interaction between multiple stability regimes
can be more easily understood. It is observed that the poor
response of small-signal rotor angle stability generally
corresponds to poor response of other stability types in low
uncertainty case. However, once the level of uncertainty
increases and more sources of uncertainty exist, this
relationship is significantly changed.