通过金字塔分组技术考虑并行事件的微电网保护协调的创意方法
Hossein Karimkhan-Zand1,2, Kazem Mazlumi3, Hamed Hashemi-Dezaki4
1Department of Electrical Engineering, Faculty of Engineering, University of Zanjan, Zanjan, Iran.
Scientific reports
|November 27, 2025
概括
本研究引入了一种新方法,用于简化微电网保护协调中的并行事件,使用定向超电流继电器 (DOCR). 金字塔分组技术和混合SQ-QN-LP算法显著减少继电器运行时间.
科学领域:
- 电气工程 电气工程
- 电力系统工程 电力系统工程
- 控制系统 控制系统
背景情况:
- 微电网保护协调至关重要,特别是在单一事件或岛屿场景期间.
- 平行事件显著增加了微电网保护设计的复杂性.
- 现有的方法可能无法有效地处理并行事件带来的复杂性.
研究的目的:
- 开发一种创新的方法来减少微电网保护协调中并行事件的范围.
- 在复杂的微电网场景中提高定向超流继电器 (DOCR) 的效率.
- 引入和验证一个新的参数识别混合算法.
主要方法:
- 实施金字塔分组技术来分类和简化并行事件.
- 应用一种新的混合算法,顺序二次,准牛顿和线性编程 (SQ-QN-LP),用于参数识别.
- 在现实世界 (SHARIAT料) 和标准 (IEEE 399 总线) 网络上进行验证.
主要成果:
- 拟议的金字塔分组技术有效地组织复杂的事件场景.
- 该SQ-QN-LP算法成功地确定了保护协调问题参数.
- 与其他方法相比,SQ-QN-LP方法显著减少了继电器运行时间 (22%至75%).
- 在经过测试的SHARIAT供应器和IEEE 399巴士网络中没有观察到任何协调不当.
结论:
- 开发的方法提供了一种有效的方法来管理微电网保护中的并行事件.
- 该SQ-QN-LP算法提供了一个强大的和高效的解决方案,用于参数优化在DOCR协调.
- 这项研究有助于提高微电网保护系统的可靠性和更快的响应时间.
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