Clustering of electrical transmission systems based on network topology and stability
Clustering of electrical transmission systems based on network topology and stability
复制标题
基于网络拓扑和稳定性的输电系统集群
DOI：
10.1080/00949655.2014.924517
复制
发表时间：
2015
影响因子：
1.2
通讯作者：
C. Weihs
中科院分区：
文献类型：
--
作者：
S. Krey;S. Brato;U. Ligges;J. Götze;C. Weihs
对重载大型电力传输系统的行为进行正确的理解和建模对于安全和不间断的运行至关重要。在本文中，我们提出了根据不同标准将电力网络聚类为区域的方法。这些区域对于大型跨大陆电力网络的有效建模、切换操作决策或放置监控系统的冗余部分非常有用。在交流电网中，功率振荡是正常现象，但如果振荡加剧就会变得危险。第一种方法使用每个节点上这些振荡的稳定性评估结果之间的相关性作为集群标准。第二种方法专注于网络拓扑，并在网络图上使用谱聚类来创建所有节点互连的集群。在这项工作中，我们还讨论了如何选择正确数量的集群的问题，以及如何使用所讨论的集群方法对大型电力网络或保护和控制系统进行有效建模。
A proper understanding and modelling of the behaviour of heavily loaded large-scale electrical transmission systems is essential for a secure and uninterrupted operation. In this paper, we present methods to cluster electrical power networks based on different criteria into regions. These regions are useful for the efficient modelling of large transcontinental electricity networks, switching operation decisions or placement of redundant parts of the monitoring and control system. In alternating current electricity networks, power oscillations are normal, but they can become dangerous if they build up. The first approach uses the correlation between results of a stability assessment for these oscillations at every node for the cluster criterion. The second method concentrates on the network topology and uses spectral clustering on the network graph to create clusters where all nodes are interconnected. In this work, we also discuss the problem how to choose the right number of clusters and how the discussed clustering methods can be used for an efficient modelling of large electricity networks or in protection and control systems.