论文标题
考虑可变的最大能力输入损失的频率服务的最佳调度
Optimal Scheduling of Frequency Services Considering a Variable Largest-Power-Infeed-Loss
论文作者
论文摘要
由于可再生能源渗透而导致的惯性水平较低，带来了几个挑战，例如对初级频率响应（PFR）的需求更高。缓解此问题的潜在解决方案包括减少网格中最大的功率损失。本文开发了一个新颖的建模框架，以分析这种方法的好处。 这里提出了一个新的频率约束随机单位承诺（SUC），该承诺可以动态减少优化问题中最大的损失。此外，通过近似值包括负载阻尼的效果，而在先前的频率固定-UC研究中通常会忽略其效果。通过几个案例研究，我们证明，减少最大的损失可能会大大降低未来英国电网的运营成本和碳排放。
Low levels of inertia due to increasing renewable penetration bring several challenges, such as the higher need for Primary Frequency Response (PFR). A potential solution to mitigate this problem consists on reducing the largest possible power loss in the grid. This paper develops a novel modelling framework to analyse the benefits of such approach. A new frequency-constrained Stochastic Unit Commitment (SUC) is proposed here, which allows to dynamically reduce the largest possible loss in the optimisation problem. Furthermore, the effect of load damping is included by means of an approximation, while its effect is typically neglected in previous frequency-secured-UC studies. Through several case studies, we demonstrate that reducing the largest loss could significantly decrease operational cost and carbon emissions in the future Great Britain's grid.
