用机器学习快速识别电机转子类型,替代传统高成本仿真。
KS-Net: Multi-layer network model for determining the rotor type from motor parameters in interior PMSMs
- 设计KS-Net深度模型,通过电磁参数预测转子形状。
- 9000样本下准确率达99.98%,接近100%完美分类。
- 适合电机设计优化与自动化检测场景使用。
电动汽车驱动系统对高效率和精确控制的需求推动了内置永磁同步电机(IPMSMs)的广泛应用。电机性能受转子结构显著影响。传统上依赖有限元法(FEM)分析转子形状,但计算成本高昂。本研究采用机器学习方法,基于电磁参数对IPMSMs的转子类型(2D型、V型、Nabla型)进行分类,并验证其作为传统方法替代方案的可行性。自研深度学习模型KS-Net与三次支持向量机(Cubic SVM)、二次支持向量机(Quadratic SVM)、精细KNN、余弦KNN及精细决策树算法进行了对比。在包含9000个样本的平衡数据集上,通过10折交叉验证,以准确率、精确率、召回率和F1分数为评估指标。结果显示,Cubic SVM与Quadratic SVM实现100%准确率,无误判;KS-Net达到99.98%准确率,仅2例误判,表现与经典方法相当。研究表明,基于数据驱动的方法可高精度预测IPMSM转子结构,提供一种快速且低成本的替代FEM分析的方案,为电机设计加速、自动化转子识别系统构建及工程故障诊断提供了坚实基础。
原文摘要 · Abstract (English)
The demand for high efficiency and precise control in electric drive systems has led to the widespread adoption of Interior Permanent Magnet Synchronous Motors (IPMSMs). The performance of these motors is significantly influenced by rotor geometry. Traditionally, rotor shape analysis has been conducted using the finite element method (FEM), which involves high computational costs. This study aims to classify the rotor shape (2D type, V type, Nabla type) of IPMSMs using electromagnetic parameters through machine learning-based methods and to demonstrate the applicability of this approach as an alternative to classical methods. In this context, a custom deep learning model, KS-Net, developed by the user, was comparatively evaluated against Cubic SVM, Quadratic SVM, Fine KNN, Cosine KNN, and Fine Tree algorithms. The balanced dataset, consisting of 9,000 samples, was tested using 10-fold cross-validation, and performance metrics such as accuracy, precision, recall, and F1-score were employed. The results indicate that the Cubic SVM and Quadratic SVM algorithms classified all samples flawlessly, achieving 100% accuracy, while the KS-Net model achieved 99.98% accuracy with only two misclassifications, demonstrating competitiveness with classical methods. This study shows that the rotor shape of IPMSMs can be predicted with high accuracy using data-driven approaches, offering a fast and cost-effective alternative to FEM-based analyses. The findings provide a solid foundation for accelerating motor design processes, developing automated rotor identification systems, and enabling data-driven fault diagnosis in engineering applications.
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