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基于改进MPE和K-medoids的变压器绕组松动故障诊断

open access: yesGaoya dianqi
为了更加有效地对变压器绕组松动故障进行诊断,针对变压器有载运行时的振动信号,提出了一种基于改进多尺度排列熵(MPE)和K-medoids的变压器绕组松动故障诊断方法。首先采用粒子群优化(PSO)的MPE算法对绕组不同状态下的变压器振动信号进行特征提取,以减少MPE算法中参数设置对故障类型识别精度的影响,然后通过K-medoids聚类算法诊断变压器绕组松动故障,以完成故障的分类识别。对某10 kV变压器的绕组松动故障模拟实验结果表明,绕组不同状态下变压器振动信号的MPE值经PSO参数优化后存在明显差异 ...
马宏忠   +4 more
doaj  

[Repair and reconstruction of facial organ injuries: a perfect fit of structure and function]. [PDF]

open access: yesZhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Song BQ, Pei JM.
europepmc   +1 more source

[The role of body roundness index and a body size index in the assessment of obstructive sleep apnea-hypopnea syndrome]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Wang J   +7 more
europepmc   +1 more source

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