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https://open.uns.ac.rs/handle/123456789/2877
Nаziv: | Voltage Stability Prediction Using Active Machine Learning | Аutоri: | Malbaša, Vuk Zheng C. Chen P. Popović, Živko Kezunovic M. |
Dаtum izdаvаnjа: | 1-нов-2017 | Čаsоpis: | IEEE Transactions on Smart Grid | Sažetak: | © 2012 IEEE. An active machine learning technique for monitoring the voltage stability in transmission systems is presented. It has been shown that machine learning algorithms may be used to supplement the traditional simulation approach, but they suffer from the difficulties of online machine learning model update and offline training data preparation. We propose an active learning solution to enhance existing machine learning applications by actively interacting with the online prediction and offline training process. The technique identifies operating points where machine learning predictions based on power system measurements contradict with actual system conditions. By creating the training set around the identified operating points, it is possible to improve the capability of machine learning tools to predict future power system states. The technique also accelerates the offline training process by reducing the amount of simulations on a detailed power system model around operating points where correct predictions are made. Experiments show a significant advantage in relation to the training time, prediction time, and number of measurements that need to be queried to achieve high prediction accuracy. | URI: | https://open.uns.ac.rs/handle/123456789/2877 | ISSN: | 19493053 | DOI: | 10.1109/TSG.2017.2693394 |
Nаlаzi sе u kоlеkciјаmа: | FTN Publikacije/Publications |
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