Multi Time-Scale Modeling of a STATCOM and Power Grid for Stability Studies using Modelica
Multi Time-Scale Modeling of a STATCOM and Power Grid for Stability Studies using Modelica
复制标题
使用 Modelica 对 STATCOM 和电网进行多时间尺度建模以进行稳定性研究
DOI：
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
L. Vanfretti
中科院分区：
文献类型：
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作者：
M. C. Fernandes;L. Vanfretti
目前，许多电力电子设备正在接入电网。研究这些设备控制器之间的相互作用以及由此产生的电磁和机电响应的一种有效方法是使用混合波相量模拟。文献中已经提出了许多涉及电磁 (EMT) 和暂态稳定 (TS) 模型联合仿真的解决方案，并采用不同的技术根据波量计算相量。本文提出了混合接口的 Modelica 实现，该接口能够耦合电网的两个部分，每个部分在两个不同时间尺度的模型中定义。该接口在 Modelica 兼容环境中用于连接 STATCOM（作为 EMT 模型）与单机无限总线系统（作为相量模型）。给出了接口性能和 STATCOM 实施的评估结果。
Currently many power-electronic-based devices are being connected to the electric power grid. An efficient way to study the interaction between these devices’ controllers, and the resulting electromagnetic and electromechanical responses is to use hybrid wave-phasor simulations. Many solutions involving the co-simulation of electromagnetic (EMT) and transient stability (TS) models have been proposed in literature, with different techniques being employed for the calculation of a phasor from the wave quantities. This paper presents a Modelica implementation of a hybrid interface that enables the coupling of two portions of a power grid, with each portion defined in models in two different time-scales. The interface is used in Modelica-compliant environment to interface a STATCOM, as an EMT model, with a single machine infinite bus system, as the phasor model. Results to assess the interface performance and the STATCOM implementation are presented.