EPNES: Pricing Transmission Congestion to Alleviate System Stability Constraints in Bulk Power Planning

电力传输是将大量能量从产生的地方输送到需要的地方的能力。尽管美国批发市场的电力交易量从1994年的几乎为零增加到2000年的800太瓦时，但投入输电系统的资金相对较少。因此，输电基础设施老化，导致“线路拥堵”，如受限系统实例增加、进口能力降低、线路负荷过重以及稳定性问题。因此，任何减少输电阻塞的努力都可能在用户选择和电力运行的经济效率方面提供实质性的好处。一种流行的拥堵管理定价被称为位置边际定价(LMP)。尽管LMP应该是一种有效的长期战略，但各方尚未一致努力利用LMP来缓解人们对稳定的担忧。该项目的学术价值在于扩展了LMP的概念，将大容量电力系统的稳定限制区域包括在内。拟议的工作将集中在定义基于电力系统基本物理的稳定性约束，将这些约束纳入适当的优化模型，以及评估这种优化所产生的经济影响。预计最重要的更广泛的影响之一是使用南方公司提供的实际批量电力系统数据。基于这些数据的结果将使大型互联电力系统的稳态和动态研究变得更加现实，这将是对电力工程研究界的重大贡献。

Transmission of electric power is the ability to move large volumes of energy from where it is generated to where is needed. Even though the quantity of power traded in the wholesale market in the United States went from almost nothing in 1994 to over 800 terrawatthours in 2000, there has been relatively little money put into the transmission system. Consequently, the transmission infrastructure is aged, resulting in "congested lines" such as increased instances of constrained systems, reduced import capability, heavily loaded lines, and stability problems. Therefore, any effort to reduce transmission congestion may provide substantial benefits in customer choice and economic efficiency in power operation. A popular type of congestion-management pricing is known as locational marginal pricing (LMP). Although LMP should be an effective long-term strategy, there has not been a concerted effort to use LMP to alleviate stability concerns. The intellectual merit of this project lies in extending the LMP concept to include stability-limited regions of bulk power systems. The proposed work will focus on defining the stability constraints based on the underlying physics of power systems, the inclusion of these constraints into suitable optimization models, and the evaluation of the economic implications produced by such optimizations. One of the most significant broader impacts anticipated is the use of actual bulk-power system data provided by Southern Company. The results based on this data will permit more realistic steady-state and dynamic studies of large interconnected power systems, which will be a major contribution to the power engineering research community.