论文标题
建模具有较高可再生能源的动力系统的动力和控制
Modeling the dynamics and control of power systems with high share of renewable energies
论文作者
论文摘要
可再生和混合动力系统的挑战是可再生能源（RES）的动态稳定集成。本文专门研究了间歇性RES的影响以及电力电子资源对频率稳定性的延迟。此外，它提供了一个开源框架，以进行动态RES建模。 首先，对于局部间歇性分布网格中的间歇性波动，我发现动态和拓扑特性的显着，微妙但坚固的相互作用，这在很大程度上是无损网格的。 其次，我展示了延迟如何引起共振灾难以及临界延迟的存在如何设定测量时间上限。此外，我研究了集中式和分散的电力生产，对于不同的网格拓扑，是否会改变这种行为。 第三，用于产生上述结果的代码是在以编程语言朱莉娅（Julia）开发的名为powerdynamics.jl的开源软件框架。它将涵盖RES与差分代数（DAE），延迟差分（DDES）和随机差分代数方程（SDAE）的实现引起的丰富新型动力学。 总的来说，本文研究了未来功率网格的稳定性，朝着整合可再生能源动力学的更多方面，并为RES集成研究提供了足够的建模框架。
A challenge for renewable and hybrid power systems is the dynamically stable integration of Renewable Energy Sources (RES). This paper specifically investigates the influence of intermittent RES and measurement delays from power electronic resources on frequency stability. In addition it presents an Open-Source framework to undertake dynamic RES modeling. First, for local intermittent fluctuations in lossy distribution grids I find a remarkable and subtle but robust interplay of dynamical and topological properties, which is largely absent for lossless grids. Second, I show how delays may induce resonance catastrophes and how the existence of critical delays sets an upper limit for measurement times. Further, I investigate whether centralized vs. decentralized power production, for different grid topologies, changes this behavior. Third, the code used for producing the above results is in the process of being published as an open-source Software framework called PowerDynamics.jl being developed in the programming language Julia. It will cover the rich novel dynamics caused by the integration of RES with the implementation of Differential Algebraic (DAEs), Delayed Differential (DDEs) and Stochastic Differential Algebraic Equations (SDAEs). Altogether, this paper investigates the stability of future power grids moving towards integrating more aspects of renewable energy dynamics and presents an adequate modeling framework for RES integration studies.
