断路器机械特性的在线监测的研究.docx

目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc320813733"1绪论PAGEREF_Toc320813733\h1HYPERLINK\l"_Toc320813734"1.1断路器机械特性在线监测的目的及意义PAGEREF_Toc320813734\h1HYPERLINK\l"_Toc320813735"1.2断路器机械特性在线监测的发展现状PAGEREF_Toc320813735\h2HYPERLINK\l"_Toc320813736"1.3本课题的主要研究工作PAGEREF_Toc320813736\h3HYPERLINK\l"_Toc320813737"2断路器机械特性在线监测原理PAGEREF_Toc320813737\h4HYPERLINK\l"_Toc320813738"2.1高压断路器的简介PAGEREF_Toc320813738\h4HYPERLINK\l"_Toc320813739"2.1.1高压断路器的概念、特点及组成结构PAGEREF_Toc320813739\h4HYPERLINK\l"_Toc320813740"2.1.2高压断路器的操动结构与机械寿命PAGEREF_Toc320813740\h5HYPERLINK\l"_Toc320813741"2.1.3高压断路器的机械故障类型介绍PAGEREF_Toc320813741\h6HYPERLINK\l"_Toc320813742"2.2高压断路器机械特性在线监测PAGEREF_Toc320813742\h7HYPERLINK\l"_Toc320813743"2.2.1断路器合闸、分闸线圈电流监测PAGEREF_Toc320813743\h8HYPERLINK\l"_Toc320813744"2.2.2断路器操动机构行程及速度的监测PAGEREF_Toc320813744\h11HYPERLINK\l"_Toc320813745"2.2.3断路器振动信号的监测PAGEREF_Toc320813745\h11HYPERLINK\l"_Toc320813746"3断路器在线监测中的小波应用PAGEREF_Toc320813746\h12HYPERLINK\l"_Toc320813747"3.1小波分析的概念PAGEREF_Toc320813747\h12HYPERLINK\l"_Toc320813748"3.2小波函数的选取PAGEREF_Toc320813748\h14HYPERLINK\l"_Toc320813749"3.3小波去噪PAGEREF_Toc320813749\h16HYPERLINK\l"_Toc320813750"3.4利用小波处理断路器行程信号PAGEREF_Toc320813750\h17HYPERLINK\l"_Toc320813751"3.4.1合闸过程PAGEREF_Toc320813751\h18HYPERLINK\l"_Toc320813752"3.4.2分闸过程PAGEREF_Toc320813752\h20HYPERLINK\l"_Toc320813753"3.5小波降噪和傅里叶降噪法PAGEREF_Toc320813753\h21HYPERLINK\l"_Toc320813754"3.5.1傅里叶降噪法PAGEREF_Toc320813754\h21HYPERLINK\l"_Toc320813755"3.5.2小波降噪法PAGEREF_Toc320813755\h22HYPERLINK\l"_Toc320813756"3.6利用使用全局阈值和分层阈值处理分合闸线圈电流信号PAGEREF_Toc320813756\h24HYPERLINK\l"_Toc320813757"3.7结论PAGEREF_Toc320813757\h25HYPERLINK\l"_Toc320813758"4总结和展望PAGEREF_Toc320813758\h26HYPERLINK\l"_Toc320813759"4.1总结PAGEREF_Toc320813759\h26HYPERLINK\l"_Toc320813760"4.2展望PAGEREF_Toc320813760\h26HYPERLINK\l"_Toc320813761"参考文献PAGEREF_Toc320813761\h