论文标题
基于转换器的电源系统中的网格形成lambda-omega虚拟振荡器控制
Grid-forming lambda-omega virtual oscillator control in converter-based power systems
论文作者
论文摘要
受到生物系统反应扩散模型的波浪现象动力学的启发，我们提出了一种新型的网格形成控制策略，用于控制功率系统中三相DC/AC转换器。 （$λ-ω$）虚拟振荡器控制或（lambda-omega）VOC是从虚拟振荡器动力学中以固定的标称频率旋转到自适应，基于角度的频率函数的虚拟振荡器动力学的自然增量。我们研究通过$π$传输线相互连接的相同三相直流/交流转换器的网络。为此，我们证明了几乎全局的渐近稳定性，用于缩短的模型（时间尺度分离）版本，该版本与一组定义明确的控制器收益和系统参数相关联。此外，我们将（λ-ω）VOC链接到文献中的经过良好的控制器，例如下垂控制。最后，我们在示例三个DC/AC转换器网络上验证结果。
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.
