A Method for Parameter Identification of Distribution Network Equipment Based on Sequential Model-Based Optimization
Bin Li, Jiayang Ma, Ke Hu, Shihe Xu, Hao Jiao, Jinming Chen, Wei Liu · International Transactions on Electrical Energy Systems · 2022
We present the first model-based parameter identification method in the power distribution network to successfully achieve parameter identification directly based on sequential model-based optimization. This method is building a model with a posteriori probability to optimize an objective function. Furthermore, to achieve an efficient exploration, three different acquisition functions, i.e., random search, tree-structured Parzen estimator approach, and simulated annealing, were proposed. We applied our three models and the conventional model-free method to the actual feeder data with no adjustment of the other conditions. The experiment shows that our method achieves at least 25% and 70% improvements in accuracy and convergence speed, respectively.