A Non-neutral alternate arc suppression method for single phase grounding fault in active distribution network

被引：6
|
作者：
Huang, Zejun [1 ]
Guo, Qi [1 ]
Tu, Chunming [1 ]
Hou, Yuchao [1 ]
Jiang, Fei [2 ]
Wang, Xin [1 ]
Xiao, Fan [1 ]
Xiao, Zekun [1 ]
机构：
[1] Hunan Univ, Natl Elect Power Convers & Control Engn Technol Re, Changsha 410082, Peoples R China
[2] Changsha Univ Sci & Technol, Sch Elect & Informat Engn, Changsha 410004, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS | 2023年 / 152卷
基金：
中国国家自然科学基金;
关键词：
Grounding fault; Multi-functional grid-connected converter; Arc suppression; Power quality control; Flexible regulation; CONTROL STRATEGY; COMPENSATION;
D O I：
10.1016/j.ijepes.2023.109182
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：
To fully compensate reactive and active components of the single line-to-ground (SLG) fault current, additional DC power supply devices are usually used for arc suppression devices. Therefore, the alternate arc suppression method is proposed for the non-neutral multi-function arc suppression device (MF-ASD) in this paper, which can achieve energy self-balance in the MF-ASD during the SLG fault without additional DC power supply devices. Firstly, the DC-link charge-discharge characteristic of the MF-ASD is analyzed under different SLG fault conditions. Then, the alternate arc suppression principle and energy flow law between two non-faulty phases of the MF-ASD are described in detail. Further, the relationship between the alternate period, switching time, and the DC-link voltage are deduced as well. Then, the control parameters are reasonably designed for the DC-link voltage stability of two non-faulty phases of the MF-ASD. Finally, the correctness and feasibility of the proposed method are verified by simulation and experiment results.
引用
收藏
页数：10
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