基于故障树法的直流环形微电网保护系统可靠性评估

2020 7th International Conference on Electrical and Electronics Engineering (ICEEE) Pub Date : 2020-04-01 DOI:10.1109/ICEEE49618.2020.9102582

Jehad Hedel, Ahmad Abuelrub

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引用次数: 3

摘要

提出了一种直流环形微电网的保护方案。然后，利用故障树(FT)方法对该保护方案的可靠性进行了分析。用平均无故障时间(MTTF)可靠性指标来表示保护系统的可靠性。基于该可靠性指标，工程师可以预测整个系统的可靠性。在此过程中，采用时间区间法计算系统各组成部分对整个系统可靠性的影响程度。结果表明，该防护系统整体的MTTF为2155.23 h。此外，电缆保护系统的保护功能最重要，而柴油发电机的保护功能最低。

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Reliability Assessment of Protection System for DC Ring Microgrid Using Fault Tree Method

This paper suggests a protection scheme for DC ring Microgrid (MG). Then, the reliability of this protection scheme is analyzed using the Fault Tree (FT) method. The reliability of the protection system is represented using Mean Time To Failure (MTTF) reliability index. Based on this reliability index, engineers can anticipate the reliability of the overall system. In this process, the importance of the system components influencing the overall system reliability is calculated using the time interval method. For the suggested protection system, results show that the MTTF for the overall protection system equals 2155.23 hours. In addition, the cable protection system is shown to have the most important protection function while diesel generator protection has the lowest one.

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2020 7th International Conference on Electrical and Electronics Engineering (ICEEE)

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