电网和仪器变压器高达150kHz:文献和标准的审查
Mohamed Agazar1, Giovanni D'Avanzo2, Guglielmo Frigo3
1Laboratoire National de Métrologie et d'Essais (LNE), 1 Rue Gaston Boissier, 75015 Paris, France.
Sensors (Basel, Switzerland)
|July 13, 2024
概括
来自可再生能源的高频扭曲 (HFD) 对电网产生影响. 本综述考察了HFD测量挑战,特别是仪器变压器,并确定了准确的电网干扰分析的研究缺口.
科学领域:
- 电气工程 电气工程
- 电力系统分析 分析 分析
- 电磁兼容性 电磁兼容性 电磁兼容
背景情况:
- 越来越多的可再生能源的整合引入了高频扭曲 (HFD) 在电网.
- 分散发电系统中的电力电子转换器是这些电网干扰的主要来源.
- 现有的标准和研究解决了HFD问题,但在精确测量方面仍然存在挑战,特别是在中压 (MV) 电网中.
研究的目的:
- 提供有关HFD和仪表变压器 (IT) 的最新情况的全面审查.
- 确定与HFD测量相关的当前研究,标准和欧洲项目成果.
- 建立一个定义测试波形和理解HFD在现实世界的网格的基础.
主要方法:
- 对科学论文和国际标准进行了广泛的文献审查.
- 对HFD欧洲研究项目的输出进行分析.
- 在真实网格中收集关于高频频谱振幅和频率变化的数据.
主要成果:
- 由于可再生能源的整合,HFD在低压 (LV) 和MV电网中越来越令人担忧.
- 仪表变压器 (IT) 对于在 MV 电网中进行 HFD 测量至关重要,其精度标准不断变化 (IEC 61869-1 第二版).
- 目前的IT测试指南仅限于功率频率,这对HFD分析构成了挑战.
结论:
- 对于高频率IT的标准化测试程序存在很大的差距,这与HFD相关.
- 需要进一步的研究来确定适合的HFD测试波形和测量方法.
- 解决这些挑战对于准确的电力质量评估和电网稳定性至关重要.
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