论文标题
合成电网的瞬态稳定性模型中的惯性充分性
Inertia Adequacy in Transient Stability Models for Synthetic Electric Grids
论文作者
论文摘要
如果干扰岩石是低惯性功率系统，则频率下降可能太快了，无法在触发发电机和负载的不良反应之前停止。在最坏的情况下，这种不稳定可能会导致停电和重大设备损坏。为了打击这一问题，电力公用事业在特别脆弱的系统中研究惯性。涉及详细瞬态模拟的过程通常会导致整个系统惯性地板的概念。此分析中正在进行的问题在于如何设置惯性地板以及频率控制资源的位置在多大程度上很重要。本文提出了一种新的分析技术，该技术将频率变化（ROCOF）的理论位置量化量化为可扩展到大型系统的计算有效筛选算法。在向这一领域推动这一领域的另一个挑战是缺乏高质量的公共基准动态案例。本文为此类目的提供了一种合成案例和验证方法，以确保它非常适合惯性足够的研究以改善电网性能。
If a disturbance rocks a low-inertia power system, the frequency decline may be too rapid to arrest before it triggers undesirable responses from generators and loads. In the worst case, this instability could lead to blackout and major equipment damage. Electric utilities, to combat this, study inertia adequacy in systems that are particularly vulnerable. This process, involving detailed transient simulations, usually leads to a notion of a system-wide inertia floor. Ongoing questions in this analysis are in how to set the inertial floor and to what extent the location of frequency control resources matters. This paper proposes a new analysis technique that quantifies theoretical locational rate of change of frequency (ROCOF) as a computationally efficient screening algorithm scalable to large systems. An additional challenge in moving this area forward is the lack of high-quality, public benchmark dynamics cases. This paper presents a synthetic case for such purposes and a methodology for validation, to ensure that it is well suited to inertia adequacy studies to improve electric grid performance.
