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首页> 外文学位 >Small signal analysis of power systems: Eigenvalue tracking method and eigenvalue estimation contingency screening for DSA.
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Small signal analysis of power systems: Eigenvalue tracking method and eigenvalue estimation contingency screening for DSA.

机译：电力系统小信号分析：DSA的特征值跟踪方法和特征值估计应急筛选。

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摘要

Two aspects of small signal analysis of power systems are investigated in this dissertation. The first part presents the eigenvalue tracking method for power system stabilizer (PSS) placement. Traditional methods for determining PSS placements are based on the analysis of the interconnected system. However, the design of the PSS is based on a simplified single machine infinite bus (SMIB) model. A new method, the eigenvalue tracking method, makes a connection between the interconnected and system of SMIBs models to determine PSS placements. Thus, this method bridges the relationship between the way a PSS is designed and placed. This method will be compared to traditional methods for PSS placement, and it will be shown that the eigenvalue tracking method can outperform the traditional methods and should be included for a complete analysis to determine PSS placement.;The second part of this dissertation develops a new line outage screening method for dynamic security analysis (DSA). The new screening method extends the use of distribution factors commonly used in static security analysis (SSA) to DSA by using the factors with eigenvalue sensitivities to estimate the change in the eigenvalues due to a line outage. This method screens line outages by estimating the stability of the post-line-outage system equilibrium point. Using the estimated changes in the eigenvalues, several line outage severity indices will be created. These severity indices will be used to rank line outages in order of severity and will also be combined with the eigenvalue estimation screening method to form a more conservative line outage screening method.
机译：本文研究了电力系统小信号分析的两个方面。第一部分介绍了用于电力系统稳定器（PSS）放置的特征值跟踪方法。确定PSS位置的传统方法是基于对互连系统的分析。但是，PSS的设计基于简化的单机无限总线（SMIB）模型。一种新方法，特征值跟踪方法，在互连的SMIB模型与系统之间建立联系，以确定PSS位置。因此，该方法桥接了PSS设计和放置方式之间的关系。将该方法与传统的PSS放置方法进行了比较，结果表明，特征值跟踪方法的性能优于传统方法，应进行完整的分析以确定PSS放置方法。第二部分开发了一种新的方法。动态安全分析（DSA）的线路中断筛选方法。通过使用具有特征值敏感性的因子来估计由于线路中断而引起的特征值的变化，新的筛选方法将静态安全分析（SSA）中常用的分布因子的使用扩展到了DSA。该方法通过估计停电后系统平衡点的稳定性来筛选停电。使用特征值的估计变化，将创建多个线路中断严重性指标。这些严重性指标将用于按严重性顺序对线路中断进行排序，还将与特征值估计筛选方法结合以形成更为保守的线路中断筛选方法。

著录项

  • 作者

    Yeu, Rodney H.;

  • 作者单位

    University of Illinois at Urbana-Champaign.;

  • 授予单位 University of Illinois at Urbana-Champaign.;
  • 学科 Engineering Electronics and Electrical.
  • 学位 Ph.D.
  • 年度 2010
  • 页码 171 p.
  • 总页数 171
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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