Integrated Framework for Power System Security Assessment Using Energy Methods

使用能量方法进行电力系统安全评估的综合框架

• 批准号: 9209570
• 负责人: Thomas Overbye
• 金额: $ 10万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-09-15 至 1996-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9209570&HistoricalAwards=false
• 关键词: Integrated; Framework; Power; System; Security

As electrical power high voltage transmission systems become more heavily loaded due to increased electric loads and larger transfers of power between utilities, efficient system operation is becoming threatened due to static security, transient stability, and more recently voltage stability constraints. The objective of the research proposed here is to use energy function methods to develop a unified measure of power system security. To date energy functions techniques have been applied successfully to the transient stability and maximum stable loadability problems; however, little work has been done to access dynamic voltage stability. Such a measure of system voltage security is essential for economic and reliable operations. Research is to be performed in four areas. The first area will be an investigation of the modeling detail required to adequately capture the dynamics associated with voltage instability. More detailed models are anticipated for generators, loads, transformers and static var compensators (SVCs). Second, research will be done on the development of integrated energy function security framework, which will require a modified energy function, along with a new paradigm to incorporate the varying time scales of the voltage dynamics (from seconds to tens of minutes). Third, the relationship of the voltage stability unstable equilibrium points (UEPs) with the transient stability UEPs will be investigated; also work on the efficient calculation of the UEPs will also be done. Lastly, integration of energy methods into existing control center applications will be explored.

作为电力高压输电 系统的负载变得更重， 电力负荷增加， 公用事业之间的电力，高效的系统运行 由于静态安全而受到威胁， 瞬态稳定性，以及最近的电压 稳定性约束。 研究的目的 本文提出的方法是利用能量函数法， 制定统一的电力系统安全措施。 迄今为止，能量函数技术已经被 成功地应用于暂态稳定， 最大稳定负载能力问题;然而， 很少有人研究动态电压 稳定 这样的系统电压安全措施 对于经济和可靠的操作至关重要。 将在四个方面进行研究。 的 第一个领域将是一个调查的建模 充分捕捉动态所需的详细信息 与电压不稳定有关。 更详细 模型预计用于发电机，负载， 变压器和静态无功补偿器（SVC）。 第二，研究发展 综合能源功能安全框架， 这将需要修改的能量函数，沿着 一种新的模式， 电压动态的时间尺度（从秒开始 至数十分钟）。 第三， 电压稳定不稳定平衡点 与暂态稳定UEP将是 调查;也工作的有效计算 UEPs也将完成。 最后，融合 现有的控制中心 将探索应用。