Pricing transmission congestion to alleviate system stability constraints in bulk power planning

Thirty-Sixth Southeastern Symposium on System Theory, 2004. Proceedings of the Pub Date : 2004-09-27 DOI:10.1109/SSST.2004.1295660

K. Sayler, S. Halpin, J. Valenzuela, C.S. Park

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引用次数: 4

Abstract

The quantity of power traded in the wholesale energy market went from almost nothing in 1994 to over 800 TWh in 2000 but there has been relatively little investment in transmission infrastructure during that time. Consequently, the transmission system is becoming increasingly more constrained resulting in reduced import capability, heavily loaded lines, and stability problems. Any effort to reduce transmission congestion may provide benefits in customer choice and economic efficiency in power operation, but it will also provide new challenges for bulk-power system reliability. As generation continues to increase in localized areas, export limits will be encountered initially in the form of thermal constraints on transmission lines. Continuing to add generation into a constant effective system impedance will threaten a system stability limit. The focus of this paper is on developing proper pricing signals that may encourage generator operation in ways favorable to power system security. The well-developed locational marginal pricing concept is adopted as a basis and expanded to include constraints associated with system stability.

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大容量电力规划中输电拥塞定价缓解系统稳定性约束

在批发能源市场上交易的电量从1994年几乎为零到2000年超过800太瓦时，但在此期间对输电基础设施的投资相对较少。因此，输电系统越来越受到限制，导致进口能力下降、线路负荷过重和稳定性问题。任何减少输电拥塞的努力都可以在用户选择和电力运行的经济效率方面带来好处，但也会对大容量电力系统的可靠性提出新的挑战。随着局部地区发电量的持续增加，出口限制最初将以输电线路的热约束形式遇到。继续将发电量增加到一个恒定的有效系统阻抗将威胁到系统的稳定性极限。本文的重点是制定适当的定价信号，以鼓励发电机以有利于电力系统安全的方式运行。采用成熟的位置边际定价概念作为基础，并扩展到包括与系统稳定性相关的约束。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Thirty-Sixth Southeastern Symposium on System Theory, 2004. Proceedings of the

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