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Security assessment for intentional island operation in modern power system

机译：现代电力系统中有意孤岛运行的安全性评估

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摘要

There has been a high penetration level of Distributed Generations (DGs) in distribution systems in Denmark. Even more DGs are expected to be installed in the coming years. With that, to utilize them in maintaining the security of power supply is of great concern for Danish utilities. During the emergency in the power system, some distribution networks may be intentionally separated from the main grid to avoid complete system collapse. If DGs in those networks could continuously run instead of immediately being shut down, the blackout could be avoided and the reliability of supply could be increased. However, when to island or how to ensure the islanded systems can survive the islanding transition is uncertain. This article proposes an Islanding Security Region (1SR) concept to provide security assessment of island operation. By comparing the system operating state with the 1SR, the system operator can clearly know if it is suitable to conduct island operation at one specific moment. Besides, in order to improve the computation efficiency, the Artificial Neural Network (ANN) is applied for fast ISR formation. Thus, online application of ISR based islanding security assessment could be realized.
机译：在丹麦的配电系统中，分布式发电（DG）的普及率很高。预计在未来几年中将安装更多的DG。因此，利用它们来维护电源的安全性是丹麦公用事业公司非常关注的问题。在电力系统发生紧急情况期间，可能有意将某些配电网络与主电网分开，以避免整个系统崩溃。如果这些网络中的DG可以连续运行而不是立即关闭，则可以避免停电，并可以提高供电可靠性。然而，何时到岛上或如何确保岛上的系统能够生存，岛上过渡尚不确定。本文提出了孤岛安全区（1SR）的概念，以提供对岛屿运营的安全评估。通过将系统操作状态与1SR进行比较，系统操作员可以清楚地知道在某个特定时刻进行孤岛操作是否合适。此外，为了提高计算效率，将人工神经网络（ANN）用于快速ISR形成。因此，可以实现基于ISR的孤岛安全评估的在线应用。

著录项

  • 来源
    《Electric power systems research》 |2011年第9期|p.1849-1857|共9页
  • 作者

    Yu Chen; Zhao Xu; Jacob 0stergaard;

  • 作者单位

    Centre for Electric Technology, Department of Electrical Engineering, Technical University of Denmark, Elektrovej 325, Kgs. Lyngby 2800, Denmark;

    Centre for Electric Technology, Department of Electrical Engineering, Technical University of Denmark, Elektrovej 325, Kgs. Lyngby 2800, Denmark,Department of Electrical Engineering Hong Kong Polytechnic University, Hunghom, Kowloon, Hong Kong China;

    Centre for Electric Technology, Department of Electrical Engineering, Technical University of Denmark, Elektrovej 325, Kgs. Lyngby 2800, Denmark;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    distributed generation; island operation; artificial neural network; security region;

    机译：分布式发电;孤岛运行;人工神经网络;安全区域;

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