Decision tree approaches to voltage security assessment

A short survey of methods for voltage instability detection

“…The use of Decision Tree (DT) methodology for detection of emergency voltage conditions was proposed in [30]. DTs automatically built offline on the basis of learning set and a list of candidate attributes are used in real-time to assess quickly any new operating state, in terms of the values of its test attributes [30].…”

“…DTs automatically built offline on the basis of learning set and a list of candidate attributes are used in real-time to assess quickly any new operating state, in terms of the values of its test attributes [30]. The latter are readily available from realtime measurements.…”

“…The latter are readily available from realtime measurements. It was shown in [30] that the DT methodology is able to provide an emergency indicator, automatically generated off-line and efficient to use in real-time.…”

Power system online stability assessment using active learning and synchrophasor data

“…BACKGROUND Data mining tools have been previously applied in power systems to assess the transient stability [2], system operational security [3], system post-disturbance stability [4], and other areas where the complexity of detailed model computations may be alleviated by creating highly accurate but approximate predictors. In [1] and [5], the authors have used data mining tools in order to quickly estimate the system voltage and small-signal stability margins.…”

A novel continuation-based quasi-steady-state analysis approach to mitigate long-term voltage instability

“…Then along the system's tran sient trajectory, he found the critical point, and continued with basically the same methodology as [26]. Furthermore, he proposed a decision tree methodology to tackle voltage security concerns under preventive-wise and corrective-wise facets [31]. The whole process involved here is not associated with the optimization procedure for the general PCC problem.…”