DC Fault Current Analyzing, Limiting, and Clearing in DC Microgrid Clusters

被引：12

作者：

Bayati, Navid ^{[1
]}

Baghaee, Hamid Reza ^{[2
]}

Savaghebi, Mehdi ^{[1
]}

Hajizadeh, Amin ^{[3
]}

N. Soltani, Mohsen ^{[3
]}

Lin, Zhengyu ^{[4
]}

机构：

[1] Univ Southern Denmark, Dept Mech & Elect Engn, Elect Engn Sect, DK-5230 Odense, Denmark

[2] Amirkabir Univ Technol, Dept Elect Engn, Tehran 158754413, Iran

[3] Aalborg Univ, Dept Energy Technol, DK-6700 Esbjerg, Denmark

[4] Loughborough Univ, Wolfson Sch Mech Elect & Mfg Engn, Loughborough LE11 3TU, Leics, England

来源：

ENERGIES | 2021年 / 14卷 / 19期

关键词：

DC microgrid; fault; cluster; fault current limiter (FCL); DC/DC converter; CIRCUIT-BREAKER; MEDIUM VOLTAGE; PROTECTION; SCHEME;

D O I：

10.3390/en14196337

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A new DC fault current limiter (FCL)-based circuit breaker (CB) for DC microgrid (MG) clusters is proposed in this paper. The analytical expressions of the DC fault current of a bidirectional interlink DC/DC converter in the interconnection line of two nearby DC MGs are analyzed in detail. Meanwhile, a DC fault clearing solution (based on using a DC FCL in series with a DC circuit breaker) is proposed. This structure offers low complexity, cost, and power losses. To assess the performance of the proposed method, time-domain simulation studies are carried out on a test DC MG cluster in a MATLAB/Simulink environment. The results of the proposed analytical expressions are compared with simulation results. The obtained results verify the analytical expression of the fault current and prove the effectiveness of the proposed DC fault current limiting and clearing strategy.

引用

页数：19

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