التفاصيل البيبلوغرافية
| العنوان: |
Key Technology of Wide-Area Backup Protection of Intelligent DC Power Networks Based on Fault Identification. |
| المؤلفون: |
Cui, Chongyu, Li, Zhaoxia, Wu, Hongmei, Sun, Xiaojia |
| المصدر: |
Mobile Information Systems; 8/23/2022, p1-10, 10p |
| مصطلحات موضوعية: |
RANDOM matrices, FAULT zones, SPECTRUM analysis, INTELLIGENT transportation systems, INFORMATION measurement, SPECTRAL imaging |
| مستخلص: |
As the size of the grid continues to grow, traditional backup protection is no longer sufficient to meet the needs of the grid in complex environments. The key to wide-area protection is the concept of making full use of the wide-area information measured in the grid to identify faults. This paper first describes the architecture of a wide-area defense team and then proposes a fault line detection algorithm based on normal fault assembly wide-area backup protection and a positive matrix based on spectral analysis. In the assembly-based positive sequence error discovery algorithm, the difference in the amount of fault judgment between line zone faults and out-of-zone faults is illustrated, and fault line detection criteria are given. In the algorithm based on random matrix spectrum analysis, the current error sequence of each pin of the circuit is copied, translated, and superimposed with noise, then the original random matrix is matrix transformed according to random matrix theory to obtain the fault identification matrix, and finally the average spectrum radius is calculated. Through the simulation of the IEEE10 machine 39-node standard test model, it is proved that the two algorithmic methods proposed in our article can accurately identify faulty lines under various fault conditions. [ABSTRACT FROM AUTHOR] |
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