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首页> 外文期刊>American Journal of Electrical Power and Energy Systems >Reliability Assessment and Study the Effect of Substation Feeder Length on Failure Rate and Reliability Indices
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Reliability Assessment and Study the Effect of Substation Feeder Length on Failure Rate and Reliability Indices

机译：可靠性评估和研究变电站送料长度对故障率和可靠性指标的影响

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摘要

Today, utilities are trying to maximize system reliability, improve efficiency, and reduce costs by using protection system, distributed generation system, by reconfiguring the feeder, by connecting the end of feeder to other substation and so on. However, when it tries to use some techniques (reconfiguring the feeder, connecting the end of the feeder to another substation); the techniques have positive and negative impact on reliability improvement. The substation which is taken in this paper has the System Average Interruption Frequency Index (SAIFI) and System Average Interruption Duration Index (SAIDI) is 521.46 interruptions per customer per year and 446.82 hours per customer per year respectively. The historical outage interruption data of the years of 2016-2018 has been used as a base year. The study has evaluated the new substation to improve the system reliability. The simulation results have been done with the help of Electrical Transient Analysis Program (ETAP 12.6) software. In this paper includes improvement of the system reliability of the feeder is supplied from two substations or new substation should be connected at the end of the feeder. Due to the new substation, the length of the feeder will vary, and the variation of the feeder has significant effect on power reliability. The value of SAIFI and SAIDI after the new substation connected is 169 and 96 respectively. Since the new substation has negative impact, the value of indices is not reduced more.
机译：如今，公用事业公司试图通过使用保护系统，分布式发电系统来最大限度地提高系统可靠性，提高效率，降低成本，通过将送料器的端部连接到其他变电站等，通过重新配置进料器来通过重新配置。但是，当它试图使用一些技术时（重新配置进料器，将馈线的端部连接到另一个变电站）;这些技术对可靠性改进具有正负影响。本文采用的变电站具有系统平均中断频率指数（SAIFI），系统平均中断持续时间指数（SEDI）每年每年521.46个中断，每年每年446.82小时。 2016 - 2018年历史中断数据已被用作基准年。该研究评估了新的变电站，提高了系统可靠性。仿真结果是在电气瞬态分析程序（ETAP 12.6）软件的帮助下完成的。本文包括改进馈线的系统可靠性，从两个变电站提供，或者新的变电站应连接在进料器的末端。由于新的变电站，进料器的长度将变化，并且进料器的变化对功率可靠性具有显着影响。在连接的新变电站连接之后的佐肌和方向的值分别为169和96。由于新的变电站产生负面影响，因此指数的价值不会减少更多。

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