基于ESD考虑的短路比率,研究主动支持的长期和短期储能设备的配置策略
Scientific reports
|November 3, 2025
概括
本研究引入了ESD考虑的短路比率 (ECSCR),以评估可再生能源的电网强度. 新的指标提高了节点强度,并通过优化储能设备的放置和操作来降低成本.
科学领域:
- 电气工程 电气工程
- 电力系统 电力系统
- 整合可再生能源的整合
背景情况:
- 对可再生能源 (RES) 的传统短路比率 (SCR) 分析忽略了储能装置 (ESD) 和动态稳定性.
- 现有的优化方法往往将经济学优先于系统稳定性量化.
研究的目的:
- 提出一个ESD考虑的短路比率 (ECSCR),量化ESD对电网节点强度的贡献.
- 为ESD制定双层优化战略,以平衡电网稳定性和经济效率.
主要方法:
- 引入了ECSCR,包括ESD的短路能力.
- 开发了双层优化:上层用于ESD位置 (最大化最小的ECSCR),下层用于动态功率调度 (牛顿-拉普森).
- 实施了基于ECSCR相对于关键短路比率 (CSCR) 的分层运营策略,使用飞轮 (FES),电池 (BES) 和热 (TES) 储能.
主要成果:
- 在高可再生能源透率的电力系统中,ECSCR有效地提高了节点强度.
- 双层优化战略成功地平衡了电网稳定性和运营经济性.
- 与基准系统上的传统SCR方法相比,在系统稳定性和成本降低方面取得了显著的改进.
结论:
- 拟议的ECSCR在ESDs的存在下提供了更全面的电网强度评估.
- 通过ECSCR优化ESD集成显著提高了电力系统的弹性和经济性能.
- 这种方法为管理电网稳定性和成本提供了强大的框架,并增加了可再生能源的整合.
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