基于双层评估方法的光伏电站主频支持能力评估
Zhengxi Li1,2,3, Libin Yang4,5,6, Wanpeng Zhou1,2,3
1Economics and Technological Research Institute, State Grid Qinghai Electric Power Company, Xining, 810008, Qinghai, China.
Scientific reports
|February 7, 2025
概括
本研究引入了一种新的方法,用于评估光伏 (PV) 电站对电网稳定性的主动频率支持能力 (AFSC). 开发的系统和软件有效地评估了光伏电站对电网频率调节的贡献.
科学领域:
- 电气工程 电气工程
- 可再生能源系统可再生能源系统
- 电力系统分析 分析 分析
背景情况:
- 越来越多的光伏 (PV) 透挑战了电网频率安全.
- 电网规范要求光伏电站参与频率调节.
- 准确评估主动频率支持能力 (AFSC) 对于有效的频率响应策略至关重要.
研究的目的:
- 提出一个全面的指标系统来评估光伏电站的AFSC.
- 开发一个综合评估方法来评估AFSC,尽量减少主观影响.
- 为应用AFSC评估系统创建一个实用的工具.
主要方法:
- 建立了基于国家标准的AFSC综合指标系统,涵盖频率稳定性,功率支持和功率调节.
- 开发了一种双层评估模型,整合了决策试验和评估实验室 (DEMATEL),通过类似于理想解决方案的订单偏好技术 (TOPSIS) 和对抗性解释性结构建模 (AISM) 来进行指标权重.
- 通过IEEE 39总线测试系统与集成光伏站的案例研究来验证该方法.
主要成果:
- 拟议的指标系统有效地捕捉了光伏电站AFSC的关键方面.
- 综合评估方法为AFSC提供了可靠和客观的评估.
- 开发的软件有助于AFSC评估系统的实际应用和实施.
结论:
- 拟议的指标系统和评估方法准确地反映了光伏电站的AFSC.
- 开发的软件促进了AFSC评估的更广泛采用和实施.
- 这项工作有助于通过增加光伏集成来提高电网频率安全性.
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