基于故障诊断的电机可靠性预测

第1章 基本方法和工具··································································1
1.1 一般方法·········································································1
1.2 特征提取：信号和预处理····················································2
1.2.1 原始信号：信号和传感器类型·······································2
1.2.2 预处理····································································17
1.2.3 模型方法·································································38
1.2.4 等价空间法······························································44
1.3 特征简化——主成分分析···················································46
1.3.1 主成分分析：空间简化和无监督聚类······························47
1.3.2 组间关联·································································49
1.3.3 信息含量：香农熵·····················································50
1.3.4 监督聚类的模式大小简化············································51
1.3.5 无监督聚类的模式大小简化：拉普拉斯分数·····················53
1.3.6 无监督聚类的聚类数选择············································54
1.3.7 其他的聚类质量准则··················································56
1.4 聚类方法········································································58
1.4.1 概论·······································································58
1.4.2 监督聚类·································································61
1.4.3 无监督聚类······························································67
1.5 预测方法········································································73
1.5.1 预测过程·································································73
1.5.2 时间序列外推法························································75
1.5.3 贝叶斯网络······························································80
1.5.4 马尔可夫链······························································82
1.5.5 隐马尔可夫模型························································82
1.5.6 雨流算法·································································87
原著参考文献·········································································90
第2章 应用与具体细节·································································99
2.1 电机驱动概述··································································98
2.2 电机···············································································99
2.2.1 基本原理·······························································100
2.2.2 磁钢和磁体····························································101
2.2.3 绕组和绝缘····························································105
2.3 电机型号、运行与控制····················································108
2.3.1 三相绕组·······························································108
2.3.2 感应电机·······························································109
2.3.3 永磁交流电机·························································113
2.4 电机故障······································································115
2.4.1 操作变量及其测量···················································116
2.4.2 监控、检测和故障分类·············································117
2.4.3 轴承·····································································121
2.4.4 绝缘·····································································133
2.5 开路及短路故障、偏心、磁铁断裂和转子断条·····················143
2.5.1 感应电机·······························································144
2.5.2 永磁交流电机·························································158
2.5.3 传感器故障····························································166
2.5.4 故障缓解与管理······················································168
2.6 电力电子器件和系统·······················································172
2.6.1 交流电机中的电力电子器件·······································173
2.6.2 静态开关·······························································179
2.6.3 电容器··································································191
2.6.4 器件故障及其表现···················································202
2.6.5 电容器失效模式······················································207
2.6.6 功率器件故障诊断与预测技术····································207
2.6.7 电容器故障诊断与预测技术·······································247
原著参考文献·················································