论文标题
动态线等级对ERCOT传输系统的影响
Impacts of Dynamic Line Ratings on the ERCOT Transmission System
论文作者
论文摘要
网格调节器和参与者正在越来越关注动态线等级（DLR），作为解决传输系统瓶颈的新方法。在本文中，在合成ERCOT网格上对DLR，环境调整后的评分（AAR）和传统的静态线等级（SLR）进行了详尽的比较。 DLR和AAR的估计值是使用基于热平衡物理学的方程以及温度和风速的高分辨率天气数据来计算的。开发了一种用于解决安全受限的最佳功率流的约束生成方法。数值结果表明，与AAR相对于SLR相比，在系统成本，可再生削减和排放方面，使用DLR的收益可能会增加一倍。
Grid regulators and participants are paying increasing attention to Dynamic Line Ratings (DLR) as a new approach to address transmission system bottlenecks. In this paper, a thorough comparison of DLR, Ambient Adjusted Ratings (AAR), and the traditional Static Line Ratings (SLR) are conducted on a synthetic ERCOT grid. Estimates of DLR and AAR are calculated using an equation based on heat balance physics, along with high-resolution weather data of temperature and wind velocities. A constraint generation method for contingency screening is developed for solving security-constrained optimal power flow. Numerical results suggest that employing DLR could double the benefits compared to those of AAR relative to SLR, in terms of system costs, renewable curtailment, and emissions.
