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Gaoya dianqi变压器作为电力系统中最主要的输变电设备之一，其绝缘状态监测与故障识别对于电力系统安全稳定的运行具有重要意义。变压器内部绝缘劣化所产生的局部放电信号是目前对其内绝缘状态评判以及故障类型识别的最为有效的判据之一。文中通过构建4种典型的变压器绝缘缺陷模型，搭建试验平台测量得到了局部放电下的特高频信号和超声波信号。通过对2种信号的分析，对于特高频信号在TRTD模式下和PRPD模式下提取了两组特征参量，对于超声波信号在TRTD模式下提取了一组特征参量。经过核主成分分析联合支持向量机（KPCA-SVM ...
杨旭 +5 more
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Gaoya dianqi, 2012 笔者通过局部放电超高频检测、缺陷定位、模式识别以及解体等,分析了一起组合电器GIS盆式绝缘子内部气隙缺陷,阐述了基于信号能量衰减法和到达时延法的缺陷精确定位过程,又根据超高频信号PRPD谱图特征对缺陷类型进行了识别,最后通过解体查找到了该内部气隙缺陷。
周云锋, 杨景刚, 张子阳
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[A time-frequency transform and Riemannian manifold-based domain adaptation method for motor imagery in brain source space]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiQi Q, Li M.
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[Infant sleep patterns based on latent class analysis and their influencing factors]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiWei W, Wang H, Zhang J.
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[Early Alzheimer's disease recognition via multimodal hand movement quality assessment]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiYang G +5 more
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[Applications of molecularly imprinted solid-phase microextraction coupled with chromatography/mass spectrometry for determination of drug residues]. [PDF]
Se PuYan J +8 more
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[Design and synthesis of molecularly imprinted polymers and their applications in medical diagnosis and biocatalysis]. [PDF]
Se PuSong Q, Li X, Lyu Y.
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[Diffusion cycle-consistent generative adversarial networks for pelvic active bone marrow segmentation]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoZhuo L +5 more
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