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arXiv 2406.09805eess.SYcs.SY

通过具备灵活性的微电网孤岛运行实现两步停电缓解

Two-Step Blackout Mitigation by Flexibility-Enabled Microgrid Islanding

Philipp Danner, Anna Volkova, Hermann de Meer

AI总结:

针对高可再生能源微电网停电问题,提出含灵活性预留与分布式共识控制的两步孤岛运行方法,可减少40%减负荷并快速收敛至最优运行点。

摘要:

停电是发生概率较低但对系统及其用户具有高影响的灾难性事件。借助更多分布式、可控发电以及部门耦合灵活性,微电网可做好在停电期间以孤岛模式运行的准备。本文讨论了一种面向高可再生能源微电网的两步停电缓解方法,该方法利用用户灵活性和储能系统来实现孤岛电网运行中的功率平衡。所提方法包括一个前瞻性灵活性预留步骤,该步骤在不确定性下考虑相关运行成本,得出微电网资源的最小预留计划。第二步是在停电期间实施完全分布式控制,基于一系列最大值和最小值共识轮次来最大化可用资源的使用。本文重点关注第二步,并展示了黑启动和长期协调的有效性。与预测值相比,减负荷可降低40%。对构网型变流器的硬件在环仿真进一步表明,其可快速收敛至最优运行点。

英文摘要:

Blackouts are disastrous events with a low probability of occurrence but a high impact on the system and its users. With the help of more distributed and controllable generation and sector-coupled flexibility, microgrids could be prepared to operate in islanded mode during a blackout. This paper discusses a two-step blackout mitigation approach for highly renewable microgrids that utilizes user flexibility and energy storage systems for power balance in islanded grid operation. The proposed method includes a proactive flexibility reservation step, which derives a minimal reservation schedule for microgrid resources under uncertainty considering related operational costs. As a second step, during a blackout, a fully distributed control is implemented to maximize the usage of available resources based on a sequence of max and min-consensus rounds. This paper focuses on the second step, for which the effectiveness of blackstart and long-term coordination is shown. Load shedding can be reduced by 40\% compared to the forecast value. A hardware-in-the-loop simulation of a grid-forming converter further showed a fast convergence toward the optimal operation point.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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