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Grid-Friendly Matching of Synchronous Machines by Tapping into the DC Storage * * This research is supported by ETH funds and the SNF Assistant Professor Energy Grant #160573.

机译:通过点击DC存储器,对同步机进行网格友好匹配 * * 此研究得到ETH的支持基金和SNF助理教授能源补助金#160573。

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Abstract: We propose a novel control strategy for grid-forming converters in low-inertia power grids. Our strategy is inspired by identifying the structural similarities between the 3-phase DC/AC converter and the synchronous machine model. We explicitly match these models through modulation control so that they become structurally equivalent. Compared to standard emulation of virtual synchronous machines, our controller relies solely on readily available DC-side measurements and takes into account the natural DC and AC storage elements which are usually neglected. As a result, our controller is generally faster and less vulnerable to delays and measurement inaccuracies. We provide a virtual adaptive oscillator interpretation of our controller various plug-and-play properties of the closed loop, such as passivity with respect to the DC and AC ports as well as the steady-state droop slopes, which we illustrate in simulations.
机译:摘要:我们提出了一种新的控制策略,用于低惯量电网中的网格形成转换器。我们的策略是通过确定三相DC / AC转换器和同步电机模型之间的结构相似性来激发的。我们通过调制控制明确匹配这些模型,以使它们在结构上等效。与虚拟同步机的标准仿真相比,我们的控制器仅依靠随时可用的直流侧测量,并考虑了通常被忽略的自然直流和交流存储元件。因此,我们的控制器通常速度更快,并且不易受到延迟和测量误差的影响。我们为控制器的虚拟自适应振荡器解释提供了闭环的各种即插即用特性,例如相对于DC和AC端口的无源性以及稳态下垂斜率,我们在仿真中进行了说明。

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