毕业论文,格式(2)

2.1 各级标题的排版格式 ....................................................................................................... 6

2.1.1 一级标题排版格式 .............................................................................................. 6

2.1.2 二级标题排版格式 .............................................................................................. 6

2.1.3 三级标题排版格式 .............................................................................................. 6

2.1.4 四级标题排版格式 .............................................................................................. 6

2.2 正文排版格式................................................................................................................... 7

2.2.1 正文排版格式 ...................................................................................................... 7

2.2.2 图形排版格式 ...................................................................................................... 7

2.2.3 表格排版格式 ...................................................................................................... 7

2.2.4 程序排版格式 ...................................................................................................... 8

第三章 论文附件排版格式........................................................................................................... 9

第四章 结束语 ............................................................................................................................ 10

参考文献 ........................................................................................................................................ 11

致谢 ................................................................................................................................................ 12

附录一 部分源程序代码[“一级标题”样式] .......................................................................... 13

附录二 部分数据表结构[使用“一级标题”样式] .................................................................... 15

附录三 调查问卷 ........................................................................................................................ 17

篇二：毕业论文摘要及格式要求

基于智能技术的电力变压器故障诊断系统

在多年研究成果的基础上，本文利用Delphi7

及ODBC数据库开发出了基于Access

数据库的电力变压器故障诊断系统。故障诊断基于专家知识库，而专家知识库又由专家经验构成。现场通常采用潜伏性故障诊断和绝缘预防性诊断对变压器状态进行诊断。其中，潜伏性故障诊断以油中溶解气体色谱分析为基础，结合外部检查、绝缘油诊断来综合分析判断运行中变压器的潜伏性故障；而绝缘预防性诊断则

由绝缘电阻、直流电阻、介损、直流泄漏、套管诊断构成。通过潜伏性故障诊断和绝缘预防性诊断，专家系统能够综合判断变压器的整体绝缘水平，并为现场操作人员提出建议。本专家系统在大量调研的基础上完成，并辅以试验报告等功能，充分考虑到现场的需要，有较强的实用价值。

关键词

Transformer Fault Diagnosing Expert System (TFDES) based on Access database. Fault Diagnosis is based on expert knowledge base, composed by experts’ experiences. Latent Fault Diagnostic (LFD) and Insulation Precautionary Test (IPT) are popularly used in reality ,so as to diagnose faults of transformers’ insulation. LFD, is used to indicate the latent faults of transformers, based on Dissolved Gas Analysis (DGA), and assisted by External Examination (EE), Insulation Oil (IO).IPT, consisted of Insulation Resistance ,Ohmic Resistance, Oil Dielectric Loss ,DC leaking Current and Bushing. Through LFD and ITP, TFDES can judge synthetically the whole insulation level of transformer, and give out proper expert suggestions to operators. This TFDES , completed through a lot of investigation and researching, affiliated with Test Report and some other functions, thinking completely of on-the-spot need, is very worthy practically.

Key System; Faults Diagnosis; Database; Knowledge Base

目录

1

２ 电力变压器绝缘故障诊断模型 .................................... 5

2.1. 电力变压器结构简介 ........................................... 5

2.2. 电力变压器绝缘基本知识 ....................................... 5

2.2.1电力变压器的绝缘 ........................................... 5

2.2.2油浸式变压器常用绝缘材料 ................................... 6

2.3. 电力变压器的故障及检测手段 ................................... 7

2.3.1 故障原因及其种类 .......................................... 7

2.3.2 电力变压器常规试验项目 .................................... 8

2.4. 电力变压器异常情况的分析 .................................... 12

2.4.1 声音异常 ................................................. 12

2.4.2 油温异常 ................................................. 13

2.4.3 油位异常 ................................................. 14

2.4.4 外表异常 ................................................. 15

2.3.1 气温、颜色异常 ........................................... 15 …… 此处隐藏：2370字，全部文档内容请下载后查看。喜欢就下载吧 ……