基于变换器的电力系统中的网格形成ω虚拟振荡器控制
Grid-forming lambda-omega virtual oscillator control in converter-based power systems
摘要：
受生物系统反应扩散模型中波动现象动力学的启发，提出了一种新的用于电力系统中三相DC/AC变换器控制的并网控制策略。（$λ-ω$）虚拟振荡器控制或（ω-ω）VOC是从以固定标称频率旋转的虚拟振荡器动态到自适应、基于角度的频率函数的思想的自然增量。我们研究了通过$Π$传输线互连的相同的三相DC/AC转换器的网络。为此，我们证明了几乎全球渐近稳定性的减少（时间尺度分离）版本的模型，与一组定义良好的控制器增益和系统参数。此外，我们将（λ-ω）VOC与文献中研究良好的控制器联系起来，例如下垂控制。最后，我们验证了我们的结果的一个例子三DC/AC转换器网络。
英文摘要：
Inspired by the kinetics of wave phenomena in reaction-diffusion models of biological systems, we propose a novel grid-forming control strategy for control of three-phase DC/AC converters in power systems. The ($λ-ω$) virtual oscillator control or (lambda-omega) VOC is a natural increment on ideas from virtual oscillator dynamics rotating at a fixed nominal frequency to adaptive, angle-based frequency function. We study a network of identical three-phase DC/AC converters interconnected via $Π$ transmission lines. For this, we prove almost global asymptotic stability for a reduced (time-scale separated) version of the model, associated to a well-defined set of controller gains and system parameters. Additionally, we link the (λ-ω) VOC to well-studied controllers in the literature, e.g. droop control. Finally, we validate our results on an example three DC/AC converter network.
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