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标题：基于模糊C均值支持向量机的直流电机故障模式识别 |
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作者：刘曼兰，崔淑梅，郭 斌 |
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| 2011年第10期 访问次数：278次 |
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摘 要：提出了一种基于模糊C-均值的永磁直流电机故障模式识别方法。首先通过模糊C-均值聚类算法对无类别标识的故障样本数据进行模糊划分，并根据模糊聚类的隶属度矩阵，判断定位每一样本数据的所属类，并定位样本数据中的野点，消除野点后，再利用基于支持向量机的模式识别方法对模糊划分后的数据进行训练。研究结果表明：该方法解决了永磁直流电机故障在线监测与诊断中缺少已知类别标签的训练样本问题，抑制了复杂环境中噪声，提高了含有大量噪声数据的永磁直流电机在线故障识别精度。
关键词：永磁直流电机；支持向量机；模糊C-均值；模式识别；故障诊断
Abstract: An improved failure recognize method based on fuzzy C-means for permanent magnetic DC motors was proposed in this paper. The online data were clustered by the fuzzy C-means and the outliers were recognized according to the membership grade calculated from the fuzzy C-means. And then the data which removed the outliers were trained and tested by the support vector machine algorithm above mentioned. The experimental results show that support vector machine algorithm based on fuzzy C-means have better tolerance of noise and anti-noise performance. It enhances fault recognition precision in the complex case for the online faults diagnosis of permanent-magnetic DC motors.
Key words: permanent magnetic DC motor; support vector machines; fuzzy C-means; failure recognize; failure diagnosis |
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