面向 HVDC 电网和电能枢纽的保护配置筛选
摘要
本文提出了一种用于筛选大型 HVDC 换流站保护系统配置的方法，这些换流站预计将在多终点 HVDC 电网和电能枢纽（或能源岛屿）中出现。这种新方法聚焦于保护设备的配置以及各种保护区域中线路和换流器的布置，而非基于大量仿真的专家保护策略决策。 presented a graph-based approach that allows high-level evaluation of possible DC fault impacts. This fault impact evaluation method can evaluate many possible protection configurations allowing the selection of less obvious choices, as experts cannot consider all possible configurations, especially when the switching station size increases. A filtering process is applied to reduce the number of possible configurations based on multiple protection performance metrics which are evaluated for different power flow scenarios. The results for these performance metrics can be compared for configurations with different numbers of HVDC circuit breakers to assess the benefit of increasing the amount of protection equipment in different network topologies. It is also shown that, through continued filtering using additional performance metrics or fault scenarios, the number of possible breaker, cable and converter configurations can be further reduced, leading to a protection design that is well suited for many operational scenarios. The results of the shortlisting process provide insights on the required number of HVDC circuit breakers to limit fault impacts to a given value. Moreover, observed trends in the results could, in future studies, contribute to new design principles and priorities, allowing system developers to more effectively design HVDC protection systems for different operational scenarios and possible investment levels.
引用
@article{arxiv.2505.05886,
title = {Shortlisting Protection Configurations for HVDC Grids and Electrical Energy Hubs},
author = {Merijn Van Deyck and Geraint Chaffey and Dirk Van Hertem},
journal= {arXiv preprint arXiv:2505.05886},
year = {2025}
}