The increasing penetration of variable distributed generation causes the transmission lines to operate closer to their design thermal limits. In this context, Dynamic Thermal Rating is a very promising technique, since it permits a better exploitation of the real capability margins of the infrastructures and eliminate network congestions. In this vein, the article proposes a novel control strategy that allows maintaining the conductor temperature of a given line within its thermal limit through the real-time curtailment of distributed energy resources in the network. The impact of weather volatility and measurement uncertainty on the dynamic response of the controller is evaluated. A comprehensive case study, based on a real-world Italian sub-transmission system and measurement data serve to illustrate the dynamic behavior of the proposed controller. The effect of measurement noise and delays is also discussed. Finally, the performance of the proposed control strategy is compared with a conventional robust optimal power flow approach.

中文翻译：

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DER的在线控制以增强传输线的动态热额定值

可变分布式发电的渗透率不断提高，导致传输线的工作温度接近其设计热极限。在这种情况下，动态热额定值是一项非常有前途的技术，因为它可以更好地利用基础架构的实际能力裕度并消除网络拥塞。有鉴于此，本文提出了一种新颖的控制策略，该策略可以通过实时减少网络中分布式能源的使用，将给定线路的导体温度保持在其热限制内。评估了天气波动性和测量不确定性对控制器动态响应的影响。全面的案例研究 基于实际的意大利子传输系统和测量数据来说明所提出的控制器的动态行为。还讨论了测量噪声和延迟的影响。最后，将所提出的控制策略的性能与常规鲁棒的最优潮流方法进行比较。