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A risk-based methodology for defining the time of intentional controlled islanding

机译：基于风险的方法来定义有意控制的孤岛时间

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Power systems are operated close to their stability limits and this increases the probability of cascading outages leading to large-area blackouts. To mitigate these phenomena, intentional controlled islanding (ICI) has been suggested as an effective corrective strategy that splits the system into sustainable subsystems (islands). There are two primary aspects associated with ICI: i) where to island, and ii) when to island? This work focuses on the latter and proposes a risk-based methodology that compares in a real-time fashion (i.e., quickly enough) the overall risk of the system without and with islanding (i.e., when an ICI scheme is activated) in order to define a suitable time for system splitting. Simulation results on the IEEE 9-bus system demonstrate the effectiveness of the methodology in determining a suitable time for the creation of islands, which in turn corresponds to the crossing point between the risks of the system without and with islanding.
机译：电力系统的运行接近其稳定极限，这增加了导致大面积停电的级联中断的可能性。为了减轻这些现象，有人建议使用有意控制的孤岛（ICI）作为将系统分为可持续的子系统（岛屿）的有效纠正策略。与ICI相关的主要方面有两个：i）到哪里去岛上，以及ii）何时去岛上？这项工作侧重于后者，并提出了一种基于风险的方法，该方法可以实时比较（即足够快）没有和有孤岛（即，激活ICI方案时）的系统总体风险，以便定义系统分裂的合适时间。在IEEE 9总线系统上的仿真结果证明了该方法在确定创建岛的合适时间方面的有效性，而该时间恰好对应于没有岛和有岛的系统风险之间的交叉点。

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