Power System Transient Stability Assessment Using Convolutional Neural Network and Saliency Map

Heungseok Lee, Jongju Kim, June Ho Park and Sang-Hwa Chung ()
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Heungseok Lee: Department of Electrical and Computer Engineering, Pusan National University, Busan 46241, Republic of Korea
Jongju Kim: Korea Southern Power Company, Busan 48400, Republic of Korea
June Ho Park: Dong-Nam Grand ICT Research and Development Center, Busan 48059, Republic of Korea
Sang-Hwa Chung: School of Computer Science and Engineering, Pusan National University, Busan 46241, Republic of Korea

Energies, 2023, vol. 16, issue 23, 1-22

Abstract: This study proposes a model for transient stability assessment, which is a convolutional neural network model combined with a saliency map (S–CNN model). The convolutional neural network model is trained on dynamic data acquired through the data measurement devices of a power system. Applying the saliency map to the acquired dynamic data visually highlights the critical aspects of transient stability assessment. This reduces data training time by eliminating unnecessary aspects during the convolutional neural network model training, thus improving training efficiency. As a result, the proposed model can achieve high performance in transient stability assessment. The dynamic data are acquired by configuring benchmark models, IEEE 39 and 118 bus systems, through MATLAB/Simulink and performing time-domain simulations. Based on the acquired dynamic data, the performance of the proposed model is verified through a confusion matrix. Furthermore, an analysis of the effects of noise interference on the performance is conducted.

Keywords: transient stability assessment; convolutional neural network; saliency map; deep learning (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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