Open Access

ARTICLE

Fault Current Identification of DC Traction Feeder Based on Optimized VMD and Sample Entropy

Zhixian Qi^1,2,*, Shuohe Wang^1,2, Qiang Xue^1,2, Haiting Mi³, Jian Wang^1,2

1 Hebei Provincial Collaborative Innovation Center of Transportation Power Grid Intelligent Integration Technology and Equipment, Shijiazhuang Tiedao University, Shijiazhuang, 050043, China
2 School of Electrical and Electronic Engineering, Shijiazhuang Tiedao University, Shijiazhuang, 050043, China
3 Tianjin Branch of China Railway Shanghai Design Institute Group Corporation Limited, Tianjin, 300073, China

* Corresponding Author: Zhixian Qi. Email: