基于元件分级传递的配电网可靠性评估快速算法

发布时间：2018-02-10 16:36

本文关键词： 配电网可靠性评估分级传递备用电源可靠性指标　出处：《中国电机工程学报》2014年S1期 　论文类型：期刊论文

【摘要】：提出一种配电网可靠性评估算法以解决故障模式影响分析法等在系统急剧增大时所具有的计算冗余问题。可靠性指标逆流传递过程考虑了下游故障对上游负荷的停电影响,而顺流传递过程考虑了上游故障对下游负荷的停电影响。在逆流传递过程中,先将支线的可靠性指标传递到馈线上,再从馈线末端开始传递至上一级馈线中。在顺流传递中,通过保护元件的逐级传递,将不同保护元件的操作时间计入可靠性指标当中。结合此2种等值过程得到系统中每一点的可靠性指标。该算法考虑保护元件的不可靠动作率,实现了可靠性指标的全网络传递。并利用区域等值技术和最小路方法以简化传递路径和有效减少计算量。所提出方法在IEEE标准可靠性测试模型RTBS上完成测试。结果表明,提出方法的可靠性计算结果与故障模式影响分析法完全相同,并能最大化地提高计算效率。
[Abstract]:A reliability evaluation algorithm for distribution network is proposed to solve the problem of computing redundancy when the system increases rapidly, such as the fault mode impact analysis method. The upstream load blackout is considered in the process of countercurrent transmission of reliability index. In the process of countercurrent transmission, the reliability index of the branch line is first transferred to the feeder line, and then the upper first level feeder line is transferred from the end of the feeder line. The operation time of different protection elements is counted into the reliability index through the step transfer of the protection element. The reliability index of each point in the system is obtained by combining the two equivalent processes. The algorithm considers the unreliable action rate of the protection element. The whole network transmission of reliability index is realized, and the region equivalent technique and the minimum path method are used to simplify the transfer path and reduce the computation effectively. The proposed method is tested on the IEEE standard reliability test model RTBS. The results show that, The reliability calculation results of the proposed method are identical to that of the fault mode impact analysis method, and the computational efficiency can be maximized.
【作者单位】：华南理工大学;深圳大学;江门供电局;
【基金】：国家重点基础研究发展计划项目(973计划)(2013CB228205) 国家自然科学基金项目(51177051,51477055) 中国南方电网科技资助项目~~
【分类号】：TM732

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