arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2102.05655eess.SYcs.SY
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基于前向神经网络的智能网不稳定性预测

Instability Prediction in Smart Cyber-physical Grids Using Feedforward Neural Networks

Amirreza Jafari, Farzad Darbandi, Hadis Karimipour

摘要:

由于大量传感器的使用和通信网络的日益普及,网络物理系统(CPS)越来越容易受到网络攻击。CPS的复杂性不断增加,需要数据驱动的机器学习应用程序来满足模型创建的需求,以描述系统行为。本文提出了一种基于级联前馈神经网络的新型稳定状态预报器。所提出的方法旨在将由于网络或物理干扰而导致的异常识别为不稳定的早期迹象。建议的神经网络利用级联连接,以提高预测的准确性。共轭梯度反向传播和Polak-Ribière公式用于训练过程。该方法还可以预测临界发电机,以减轻系统中的连锁故障和随之而来的停电的影响。IEEE 39节点系统的仿真结果表明,所提出的方法在精度,速度和鲁棒性方面的优越性。

英文摘要:

Due to the use of huge number of sensors and the increasing use of communication networks, cyber-physical systems (CPS) are becoming vulnerable to cyber-attacks. The ever-increasing complexity of CPS bring up the need for data-driven machine learning applications to fill in the need of model creation to describe the system behavior. In this paper, a novel stability condition predictor based on cascaded feedforward neural network is proposed. The proposed method aims to identify anomaly due to cyber or physical disturbances as an early sign of instability. The proposed neural network utilizes cascaded connections in order to increase accuracy of the prediction. The conjugate gradient backpropagation and Polak-Ribière formula are utilized for training process. This method also can predict the critical generators to mitigate the effect of the cascading failure and consequent blackout in the system. Simulations results on the IEEE 39-bus system indicate the superiority of the proposed method in terms of accuracy, speed, and robustness.

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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