The SCAE methodology, which is implemented based on
analytical techniques, encompasses three main steps: (a)
critical contingency selection, (b) effects analysis, and (c)
reliability index computation. To improve the accuracy and
efficiency in contingency selection and effects analysis, an
advanced power flow model, i.e., the single phase quadratized
power flow (SPQPF) model [16], is applied in the SCAE
methodology.