Fault Characteristic on DC Pole-to-Pole Short-Circuit in Distribution Electronic Power Transformers. Issue 6 (February 2019)

• Record Type: Journal Article
• Authors: Sang, Zi-Xia; Li, Ya; Zhang, Ji; Wang, Si-Cong; Yan, Jiong; Du, Zhi; Huang, Jia-Qi; Chen, Zhu
• Is Part Of: IOP conference series. Volume 237:Issue 6(2019)
• Publication Date: 2019-02
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/237/6/062016
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: The analysis on fault characteristic of Distribution Electronic Power Transformer (D-EPT) can help design its operation and protection scheme, hence improve the reliability of the D-EPT as well as the distribution power grid. The DC pole-to-pole short-circuit fault at DC-Link is analyzed with R-L-C resonant mode and free-wheeling mode, and the theoretical analysis on the short-circuit voltage and current is based on several influence factors and relevant system parameters, which indicates that the fault characteristics are related to the configuration, operation and system parameters of D-EPT.