Prevention of Power Grid Blackouts Using Intentional Islanding Scheme
Prevention of Power Grid Blackouts Using Intentional Islanding Scheme
复制标题
DOI：
10.1109/tia.2016.2614772
复制
发表时间：
2017-01-01
影响因子：
4.4
通讯作者：
Kezunovic, Mladen
中科院分区：
文献类型：
--
作者：
Esmaeilian, Ahad;Kezunovic, Mladen
故意孤岛化通常是保护电网免受严重停电的最后手段。有意孤岛化方案有意地将电力系统隔离成若干自我维持的孤岛，以增强电力网络的暂态稳定性。在这项研究中，提出了一种谱聚类算法，以获得孤岛的解决方案，这将导致最小的潮流中断跨越边界的岛屿。在发电机同调分组的基础上，引入了谱聚类方法中的约束条件。所提出的方案确保每个岛仅由彼此同步的发电机组成。建议的聚类方案采用了一个计算效率更高，更准确的k-medoids算法相比，k-means。提出的故意孤岛的方法是仔细检查使用IEEE 9总线和IEEE 118总线模型。仿真结果表明，该方法通过将系统分离为稳定岛，可以有效地防止停电。
Intentional islanding is often conducted as the last resort to preserve the electric grid from severe blackouts. The intentional islanding scheme deliberately segregates the power system into a number of self-sustained islands to enhance the transient stability of the power network. In this study, a spectral clustering algorithm is presented to obtain an islanding solution, which results in minimal power flow disruption across boundaries of islands. The constraint in the spectral clustering method is introduced based on generator coherency grouping. The proposed scheme ensures that each island is only comprised of generators, which are synchronized with each other. The proposed clustering scheme utilizes a more computationally efficient and accurate k-medoids algorithm comparing to k-means ones. The proposed intentional islanding method is scrutinized using the IEEE 9-bus and IEEE 118-bus models. The results of simulations demonstrate that the proposed method can effectively prevent blackouts by separating the systems into stable islands.