AI 中文总结
提出模块化模型降阶框架，可独立降阶子区域并保留互联结构，通过个体规格保证整体精度与稳定性，在改进IEEE 118节点系统上验证有效。
AI 中文摘要
本文提出了一种面向大规模集成可再生能源的电力系统的模块化模型降阶框架。该框架的优势在于能够独立地降阶各个子区域，同时保留电力系统的互联结构。此外，给定用户对整体降阶互联电力系统的精度规格要求，可确定各个降阶子区域的相应目标规格：满足这些个体规格即可保证整体用户定义的精度规格，同时保持整体降阶互联电力系统的稳定性。该框架在一个改进的IEEE 118节点系统上进行了验证（其中同步发电机已被基于逆变器的资源所替代），通过评估整体降阶互联电力系统在注入扰动时的频率响应、稳定性、有功功率和次同步行为方面的精度规格满足情况来验证其有效性。
英文摘要
This paper proposes a modular model order reduction framework for large-scale power grids integrated with renewable energy sources. The proposed framework has the advantage of reducing individual sub-areas independently while retaining the power grid interconnection structure. Moreover, given a user-defined accuracy specification on the overall reduced-order interconnected power grid, corresponding target specifications for the individual reduced sub-areas are determined: satisfaction of such individual specifications guarantees the overall user-defined accuracy specification, while also preserving the stability of the overall reduced-order interconnected power grid. The proposed framework is validated on a modified IEEE 118-bus system (where synchronous generators have been replaced by inverter-based resources) by assessing the accuracy specification satisfaction of the overall reduced-order interconnected power grid, in terms of frequency response, stability, active power, and sub-synchronous behaviour when injected with disturbances.
Comments10 pages, submitted to IEEE Transactions on Power Systems
