深度转移学习方法用于单个和多个功率质量干扰的分类
Uvesh Sipai1, Rajendrasinh Jadeja2, Nishant Kothari2
1Department of Electrical Engineering, Marwadi University, Rajkot, Gujarat, 360003, India. uvesh.sipai@marwadieducation.edu.in.
Scientific reports
|October 3, 2025
概括
本研究引入了一种深度转移学习方法,用于分类功率质量干扰 (PQD). 谷歌网络模型在识别各种PQD方面取得了很高的准确性,即使在噪音和现实场景中,也提高了电网的可靠性.
科学领域:
- 电气工程 电气工程
- 人工智能的人工智能
- 信号处理 信号处理
背景情况:
- 电源质量干扰 (PQD) 会降低电力系统的可靠性,并可能损坏设备.
- 准确的PQD分类对于保持不间断和可靠的电力服务至关重要.
- 现有的方法在多样化和噪音条件下可能缺乏稳定性.
研究的目的:
- 为单个和多个功率质量干扰准确分类提出深度转移学习 (TL) 方法.
- 评估预先训练的深度学习模型 (GoogleNet,SqueezeNet,ResNet-18,ShuffleNet) 的性能,这些模型已被调整为PQD分类.
- 评估在噪音条件下和实际实验数据的建议方法的稳定性.
主要方法:
- 基于IEEE 1159和IEC 61000-4-30标准,为15个类生成合成PQD信号.
- 使用连续波纹转换 (CWT) 将时间域的PQD信号转换为2D图像.
- 使用CWT图像进行重新训练,修改预先训练的深度学习模型 (GoogleNet,SqueezeNet,ResNet-18,ShuffleNet).
主要成果:
- 谷歌网络模型在各种条件下表现出优越且一致的性能.
- 在合成无噪声数据上达到99.8%的准确性,在20dB的SNR噪声中达到98.87%,在实验数据上达到98.89%.
- 成功地分类了现实世界中的高精度的冲动和冲动信号,证明了其实际适用性.
结论:
- 深度转移学习,特别是使用GoogleNet模型,为电源质量干扰分类提供了强大而准确的解决方案.
- 基于CWT的图像转换有效地为深度学习模型准备PQD数据.
- 拟议的方法显示了提高电力系统可靠性和稳定的巨大潜力.
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