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The decision tree transient stability method is revisited via a case study carried out on the French EHV power system. In short, the method consists of building offline decision trees, able to subsequently assess the system transient behavior in terms of precontingency parameters (or "attributes") of it, likely to drive the stability phenomena. This case study aims at investigating practical feasibility aspects and features of the trees, at enhancing their reliability to the extent possible, and at generalizing them. Feasibility aspects encompass database generation, candidate attributes, stability classes; tree features concern in particular complexity in terms of their size and interpretability capabilities, robustness with respect to both their building and use. Reliability is enhanced by defining and exploiting pragmatic quality measures. Generalization concerns multicontingency, instead of single-contingency trees. The results obtained show real promise for the method to meet practical needs of electric power utilities.>
Wehenkel et al. (Sat,) studied this question.