Fault Simulation of DC Distribution Network with Distributed Power Access

doi:10.16628/j.cnki.2095-8188.2022.04.013

LOW VOLTAGE APPARATUS ›› 2022, Vol. 0 ›› Issue (4): 76-82.doi: 10.16628/j.cnki.2095-8188.2022.04.013

• Distribution System Technology • Previous Articles Next Articles

Fault Simulation of DC Distribution Network with Distributed Power Access

LI Jiaxu¹, XIA Hua², BAO Xiangyu³

1. Guangzhou Metro Design and Research Institute Co.,Ltd.,Guangzhou 510010,China
2. Guodian NARI Power Technology Branch,Nanjing 211100,China
3. Nanjing University of Posts and Telecommunications,Nanjing 210023,China

Received:2022-01-18 Online:2022-04-30 Published:2022-06-06

Abstract

Abstract:

The power access requirements and the topology of modular multi-level converters in the multi-terminal flexible DC distribution network,are introduced.The scope of protection required in the multi-terminal flexible DC distribution network is clarified.The typical faults in each protection area are analyzed theoretically.According to the equivalent circuit diagram after each failure,the current and voltage characteristics are numerically calculated.Based on the actual engineering construction of a three-terminal flexible DC distribution network simulation model,the faults in eacharea are simulated and verified.

Key words: flexible DC distribution network, modular multi-level converter, ground fault, short circuit fault

CLC Number:

TM73

LI Jiaxu, XIA Hua, BAO Xiangyu. Fault Simulation of DC Distribution Network with Distributed Power Access[J]. LOW VOLTAGE APPARATUS, 2022, 0(4): 76-82.

Figures/Tables 10

References 12

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Fault Simulation of DC Distribution Network with Distributed Power Access

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