RUI: A Coherency-based Simple Dynamic Equivalent for On-line Transient Stability Assessment

RUI：基于相干性的简单动态等效在线暂态稳定性评估

• 批准号: 0423355
• 负责人: Abdul Miah
• 金额: $ 10万
• 依托单位: South Carolina State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-01 至 2007-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0423355&HistoricalAwards=false
• 关键词: RUI; Coherency; based; Simple; Dynamic

A simple dynamic equivalent for a power system external area containing a group of coherent generators is proposed for on-line transient stability assessment. The proposed method is based on decomposition and aggregation of generators. The idea of decomposing generators is a completely new idea. The resulting equivalent is simple as required for on-line application. With the knowledge of only the passive network model of the external area and the total inertia of the generators in this area, the parameters of this equivalent are determinable from a set of measurement data taken solely at the boundary buses. The method does not require any measurement data at the original generators. This important feature makes the proposed equivalent attractive and suitable for on-line applications. In this project, a thorough investigation will be made to evaluate the performance of the proposed equivalent. Further, the proposed method will be compared with one of the state-of-the art methods of forming dynamic equivalents. Dissemination of results will be through conference presentations and publications. This research will provide a powerful tool that can play a very important role in the secured operation of power systems. The proposed research involves one faculty member and two undergraduate students from the Electrical Engineering Technology (EET) Program Unit of South Carolina State University. Besides these students, other EET students (senior) will be involved in this project in different ways to integrate research and education. This project will allow PI to have an infrastructure in place to conduct research.

提出了一种用于在线暂态稳定评估的电力系统外区的简单动态等值方法。该方法基于生成器的分解和聚合。分解生成器的想法是一个全新的想法。所产生的等价物与在线申请所需的等价物一样简单。在仅知道外部区域的无源网络模型和该区域内发电机的总惯性的情况下，该等值的参数可以通过仅在边界母线处获得的一组测量数据来确定。该方法不需要原始发电机的任何测量数据。这一重要特征使得所提出的等价物具有吸引力并且适合于在线应用。在这个项目中，将进行彻底的调查，以评估拟议的等价物的性能。此外，所提出的方法将与最先进的形成动态等值的方法之一进行比较。将通过会议介绍和出版物传播成果。该研究将为电力系统的安全运行提供有力的工具。这项拟议的研究涉及南卡罗来纳州立大学电气工程技术(EET)项目组的一名教员和两名本科生。除了这些学生，其他EET学生(高年级)将以不同的方式参与这个项目，以整合研究和教育。该项目将使PI有一个适当的基础设施来进行研究。