E3S Web Conf.
Volume 233, 20212020 2nd International Academic Exchange Conference on Science and Technology Innovation (IAECST 2020)
|Number of page(s)||4|
|Section||NESEE2020-New Energy Science and Environmental Engineering|
|Published online||27 January 2021|
Fault Characteristic Analysis of Single-Phase Grounding Fault in AC grid of Energy Router in Interacted and Interconnected Micro Grid
1 State Grid HBEPC Economic & Technology Research Institute, Wuhan 430077, China
2 State Grid Laboratory for Hydro-thermal Power Resources Optimal Allocation & Simulation Technology, Wuhan 430077, China
a Corresponding author: firstname.lastname@example.org
The energy router composed of double active bridge (DAB) can interconnect multiple voltage level AC distribution network through DC lines to form AC/DC hybrid distribution network. The fault types of the system are diverse and the fault characteristics are complex. This paper studies the fault characteristics of the system in detail. The single-phase grounding fault of AC network side and single-phase grounding fault of AC valve side occurred in the system. This paper explored the impact of the AC side of the system after the above failure, and make a detailed comparative analysis. The results show that DAB can isolate the influence of AC side fault, and provide theoretical basis for the selection of grounding mode and the design of protection system for AC/DC hybrid distribution network.
© The Authors, published by EDP Sciences 2021
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