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A Quantitative Analysis of the Relationship Between Congestion and Reliability in Electric Power Networks

机译：电网拥塞与可靠性关系的定量分析

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Restructuring efforts in the U.S. electric power sector have tried to encourage transmission investment by independent (non-utility) transmission companies, and have promoted various levels of market-based transmission investment. Underlying this shift to "merchant" transmission investment is an assumption that new transmission infrastructure can be classified as providing a congestion-relief benefit or a reliability benefit. In this paper, we demonstrate that this assumption is largely incorrect for meshed interconnections such as electric power networks. We focus on a particular network topology known as the Wheatstone network to show how congestion and reliability can represent tradeoffs. Lines that cause congestion may be justified on reliability grounds. We decompose the congestion and reliability effects of a given network alteration, and demonstrate their dependence through simulations on a 118-bus test network. The true relationship between congestion and reliability depends critically on identifying the relevant range of demand for evaluating any network externalities.
机译：美国电力部门的重组工作试图鼓励独立的（非公用事业）输电公司进行输电投资，并促进了各种水平的基于市场的输电投资。转移到“商户”传输投资的基础是一个假设，即可以将新的传输基础结构归类为提供拥塞缓解效益或可靠性效益。在本文中，我们证明了这种假设对于网状互连（例如电力网络）在很大程度上是不正确的。我们将重点放在称为惠斯通网络的特定网络拓扑上，以显示拥塞和可靠性如何代表折衷方案。可能会出于可靠性考虑而导致引起拥塞的线路是合理的。我们分解了给定网络变更的拥塞和可靠性影响，并通过对118总线测试网络的仿真证明了它们的依赖性。拥塞与可靠性之间的真正关系主要取决于确定评估任何网络外部性的相关需求范围。

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