真实电网和模拟电网中频率动态的随机特性
Stochastic properties of the frequency dynamics in real and synthetic power grids
摘要：
频率是电网的关键状态变量。然而，由于频率受到几个波动来源的影响，从可再生能源波动到需求波动和调度，因此具有很强的动态性。然而，频率波动动力学的统计和随机特性远未完全理解。在这里，我们分析了从不同的同步区域记录的电网频率轨迹的属性。我们强调的非高斯和仍然近似马尔可夫性质的频率统计。此外，我们发现，频率显示显着的波动，正是在监管和交易的时间间隔，确认需要有一个监管和市场的设计，尊重未来高度可再生电网的技术和动态约束。最后，采用最近提出的合成模型的频率动态，我们结合我们的统计和随机分析和分析在多大程度上动态建模的频率特性匹配的真实轨迹。
英文摘要：
The frequency constitutes a key state variable of electrical power grids. However, as the frequency is subject to several sources of fluctuations, ranging from renewable volatility to demand fluctuations and dispatch, it is strongly dynamic. Yet, the statistical and stochastic properties of the frequency fluctuation dynamics are far from fully understood. Here, we analyse properties of power grid frequency trajectories recorded from different synchronous regions. We highlight the non-Gaussian and still approximately Markovian nature of the frequency statistics. Further, we find that the frequency displays significant fluctuations exactly at the time intervals of regulation and trading, confirming the need of having a regulatory and market design that respects the technical and dynamical constraints in future highly renewable power grids. Finally, employing a recently proposed synthetic model for the frequency dynamics, we combine our statistical and stochastic analysis and analyse in how far dynamically modelled frequency properties match the ones of real trajectories.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
