在配电网络中使用机器学习检测非技术性损失
Safdar Ali Abro1,2, Javed Ahmed Laghari2, Sufyan Ali Memon3
1Department of Electrical Engineering Technology, Benazir Bhutto Shaheed University of Technology and Skill Development, Khairpur Mirs, 66020, Pakistan.
Scientific reports
|October 16, 2025
概括
这项研究通过机器学习增强了在发电分配中的非技术性损失 (NTL) 检测. 随机森林随机采样实现了98.03%的准确性,显著改善了NTL识别.
科学领域:
- 电气工程 电气工程
- 数据科学数据科学数据科学
- 机器学习 机器学习
背景情况:
- 电力分配中的非技术性损失 (NTL),包括电力盗窃,导致公用事业公司每年数十亿美元的财务损失.
- 由于不平衡的数据集,检测NTL具有挑战性,其中NTL的实例数量远远超过合法消费数据.
研究的目的:
- 评估和比较各种机器学习算法和数据平衡技术,以有效检测NTL.
- 确定算法和数据平衡方法的最佳组合,以最大限度地提高检测准确度和精度.
主要方法:
- 应用了七种数据平衡技术:ADASYN,随机多采样,随机少采样,几乎错过少采样,边界-SMOTE,SMOTE-ENN和SMOTE-Tomek.
- 七个分类算法 (决策树,物流回归,XGBoost,随机森林,SVM,天真贝叶斯,KNN) 在两阶段模型中进行了测试,第二阶段包含数据平衡.
- 使用准确性,精度,回忆力,F1分数和马修斯相关系数 (MCC) 以70%-30%的训练测试比率来评估表现.
主要成果:
- 随机森林算法与随机采样相结合,证明了卓越的性能.
- 这种组合实现了98.03%的准确性和99.02%的精度,超过了文献中现有的方法.
- 所有的性能改进都经过统计验证,在95%的置信度水平上显示出显著的改进.
结论:
- 机器学习,特别是随机森林算法与随机采样相结合,为检测电力分配中的非技术性损失提供了高度有效的解决方案.
- 拟议的方法显著提高了NTL检测的准确性和精度,解决了数据不平衡的挑战.
- 这种方法为公用事业公司提供了一个强大的框架,以减轻电力盗窃和其他NTL造成的财务损失.
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