Data-driven small signal stability assessment of power system

• Main Author: Luo, Bingqian
• Other Authors: Xu Yan
• Format: Thesis-Master by Coursework
• Language: English
• Published: Nanyang Technological University 2021
• Subjects: Engineering::Electrical and electronic engineering
• Online Access: https://hdl.handle.net/10356/153320
• Institution: Nanyang Technological University

In this article, we focus on the data-driven approach. The experimental data comes from the New England 10-machine 39-bus system. The data-driven method needs to obtain a regression model in the training phase and then use the regression model to get the predicted value in the test phase to evaluate the regression performance. We use the Gaussian regression model in this article. Therefore, we have discussed the Bayesian inference, Gaussian process, Gaussian distribution, and Gaussian noise involved in the Gaussian regression model. We use principal component analysis and Relief’s method to perform data dimensionality reduction processing on input features. Finally, we also compared the best performing Gaussian regression model with other algorithms. Other algorithms include the Extreme Learning Machine, Random Vector Functional Link, Artificial Neural Networks, and Random Forest. By comparison, we know that Gaussian distribution has better regression performance. Finally, we discussed the deficiencies of this paper and future research topics worthy of attention in the field of small-signal stability.