Investigation of Flux-Coupling-Type SFCLs for Enhancing Interconnectivity of Multiple Microgrid Clusters Under Fault Conditions

被引:13
作者
Chen, Lei [1 ]
Deng, Xinyi [1 ]
Ding, Meng [1 ]
Chen, Hongkun [1 ]
Li, Guocheng [1 ]
Li, Yanhong [2 ]
Qiao, Xuefeng [1 ]
Yin, Youjun [3 ]
Wang, Lei [4 ]
He, Huiwen [4 ]
机构
[1] Wuhan Univ, Sch Elect Engn & Automat, Wuhan 430072, Hubei, Peoples R China
[2] China Southern Power Grid Co Ltd, Guangzhou Power Supply Co Ltd, Guangzhou 510620, Peoples R China
[3] Cent Southern China Elect Power Design Inst, Wuhan 430071, Hubei, Peoples R China
[4] China Elect Power Res Inst, Wuhan 430074, Hubei, Peoples R China
基金
中国国家自然科学基金;
关键词
Flux-coupling-type; power distribution system; interconnectivity ability; multiple microgrid (MG) clusters; superconducting fault current limiter;
D O I
10.1109/TASC.2021.3094455
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Building multiple microgrid (multi-MG) clusters is conducive to accessing high penetration of renewable generations, consuming electric energies locally, and reducing operating losses. Nevertheless, it causes a challenge that the interconnectivity of multi-MG clusters may be seriously affected by short-circuit faults. To figure out the issue, this paper puts forward a solution of using flux-coupling-type superconducting fault current limiters (SFCLs), which are positioned at the points of common coupling (PCCs) among the multi-MG clusters and the distribution system. Considering the power exchange and balance under faults, the interconnectivity characteristics of the multi-MG clusters are theoretically analyzed, and the potential actions of the SFCLs to boost the interconnectivity are expounded. Using MATLAB, a modified IEEE 13-node distribution system containing multi-MG clusters and flux-coupling-type SFCLs is modeled, and different fault scenarios are simulated to assess the efficacy and suitability of the proposed solution. From the findings, the SFCLs can very usefully relieve the power fluctuation and mitigate the PCC voltage drop for the multi-MG clusters. Not only the operation of tripping off the multi-MG clusters is efficaciously avoided, but also a stronger power support capability withstanding the fault rush is appreciatively obtained.
引用
收藏
页数:7
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