arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2102.10296eess.SYcs.AIcs.SY
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基于实例迁移学习的通用鲁棒暂态稳定评估

Versatile and Robust Transient Stability Assessment via Instance Transfer Learning

Monash University(莫纳什大学);Commonwealth Scientific and Industrial Research Organisation (CSIRO)(联邦科学与工业研究组织)

Seyedali Meghdadi, Guido Tack, Ariel Liebman, Nicolas Langrené, Christoph Bergmeir

摘要:

为了支持N-1故障前暂态稳定评估,本文介绍了一种新的数据收集方法,在数据驱动算法,结合电力系统动态知识。利用扰动效应如何从故障位置传播到网络其余部分的领域知识来识别确定系统稳定性的主导条件。因此,我们引入了一个新的概念,称为断层影响区,它提供了关键信息的不稳定区域的操作。该信息被嵌入在增强数据集中,以使用实例迁移学习框架来训练集成模型。IEEE 39节点系统的测试结果验证了该模型可以准确预测以前看不见的操作场景的稳定性,同时与标准方法相比,降低了错误预测不稳定实例的风险。

英文摘要:

To support N-1 pre-fault transient stability assessment, this paper introduces a new data collection method in a data-driven algorithm incorporating the knowledge of power system dynamics. The domain knowledge on how the disturbance effect will propagate from the fault location to the rest of the network is leveraged to recognise the dominant conditions that determine the stability of a system. Accordingly, we introduce a new concept called Fault-Affected Area, which provides crucial information regarding the unstable region of operation. This information is embedded in an augmented dataset to train an ensemble model using an instance transfer learning framework. The test results on the IEEE 39-bus system verify that this model can accurately predict the stability of previously unseen operational scenarios while reducing the risk of false prediction of unstable instances compared to standard approaches.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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