Abstract— This paper analyses the stability issues of a multi-fed radial distribution network (RDN) by evaluating its states using a state-of-the-art technique under different operating condition. In its working principle, the entire RDN is visualized as a network comprising of N number of 2-bus sections cascaded sequentially. The required bus states are evaluated using the feed forward technique on the basis of the measurements from customized PMU(s) and smart meters (SMs) placed at suitable locations within the RDN. The inherent single iterative feature of the feed forward technique reduces the computational time leading toward the possibility of real time monitoring. The stability indices are evaluated based on these measured parameters for different case studies viz. normal, contingent, and faulty as well as inclusions and/or exclusions of renewables at different bus nodes conditions. The stability indices are also analyzed for inclusions and/or exclusions of renewables at different bus nodes. The findings of the analysis are summarized to propose the prediction about the abnormal running of the segment(s) of this multi-fed RDN in real time. The MATLAB simulation shows the nature of variation in voltage and power angle profiles of different buses with change in positions of DERs.

中文翻译：

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使用 PMU 和前馈技术的多馈 RDN 中分布式发电的实时稳定性分析

摘要—本文通过在不同操作条件下使用最先进的技术评估其状态来分析多馈径向配电网络 (RDN) 的稳定性问题。在其工作原理中，整个 RDN 可视化为一个由 N 个顺序级联的 2 总线部分组成的网络。所需的总线状态使用前馈技术根据来自放置在 RDN 内合适位置的定制 PMU 和智能仪表 (SM) 的测量结果进行评估。前馈技术固有的单一迭代特征减少了导致实时监控可能性的计算时间。稳定性指数是根据不同案例研究的这些测量参数进行评估的，即。正常的，偶然的，在不同总线节点条件下可再生能源的故障以及包含和/或排除。还针对不同总线节点处的可再生能源的包含和/或排除分析了稳定性指数。总结分析的结果以提出对该多馈RDN的段的异常运行的实时预测。MATLAB 仿真显示了随 DER 位置变化的不同母线电压和功率角曲线变化的性质。