| Abstract | 第5-6页 |
| 1 Introduction | 第9-18页 |
| 1.1 Basic meaning of intelligent transformer | 第9-10页 |
| 1.2 The purpose and significance of intelligent transformer on line monitoring and faultdiagnosis technology research | 第10-11页 |
| 1.3 Overview of transformer fault diagnosis | 第11-16页 |
| 1.3.1 Transformer oil gas detection (based on the study of transformer faultdiagnosis technology in oil gas analysis and partial discharge detection) | 第13-14页 |
| 1.3.2 Research status of transformer fault diagnosis based on DGA | 第14-16页 |
| 1.4 Main research content | 第16-18页 |
| 2 Mechanism of dissolved gases in transformer oil and its relationship with fault | 第18-30页 |
| 2.1 Gas generation mechanism in transformer oil | 第18-23页 |
| 2.1.1 Source of dissolved gases in oil | 第18-20页 |
| 2.1.2 The causes and characteristics of characteristic gases | 第20-21页 |
| 2.1.3 Dissolution and diffusion of gas in transformer oil | 第21-22页 |
| 2.1.4 The relationship between the characteristic gas and oil in the transformerinternal fault | 第22-23页 |
| 2.2 Method of fault diagnosis of oil filled transformer | 第23-30页 |
| 2.2.1 Fault judging method | 第23-25页 |
| 2.2.2 Method for judging fault property and type of equipment | 第25-30页 |
| 3 Fault diagnosis of transformer based on Genetic Algorithm in wavelet neural network | 第30-52页 |
| 3.1 Main fault types of transformer | 第30-32页 |
| 3.2 Transformer fault diagnosis based on Genetic Wavelet Neural Network | 第32-43页 |
| 3.2.1 wavelet neural network | 第32-34页 |
| 3.2.2 Genetic algorithm | 第34-40页 |
| 3.2.3 Transformer fault diagnosis based on Genetic Wavelet Neural Network | 第40页 |
| 3.2.4 function type wavelet neural network structure | 第40-43页 |
| 3.3 Simulation test of transformer fault diagnosis | 第43-50页 |
| 3.3.1 Determination of input and output vectors | 第43-44页 |
| 3.3.2 Selection and processing of sample data | 第44-50页 |
| 3.4 Summary | 第50-52页 |
| 4. The design of intelligent transformer on line monitoring and diagnosis system | 第52-72页 |
| 4.1 The architecture of intelligent transformer on line monitoring and diagnosis system | 第52-53页 |
| 4.2 Intelligent transformer on line monitoring scheme | 第53-61页 |
| 4.2.1 Condition information monitoring | 第53-55页 |
| 4.2.2 On-line monitoring of partial discharge | 第55-58页 |
| 4.2.3 On-line monitoring of gas and micro water oil | 第58-59页 |
| 4.2.4 On-line monitoring winding temperature point temperature | 第59-61页 |
| 4.2.5 Intelligent unit | 第61页 |
| 4.3 Software design and development of intelligent transformer comprehensive analysisand diagnosis | 第61-72页 |
| 4.3.1 Software of comprehensive fault analysis and diagnosis system fortransformer | 第61-62页 |
| 4.3.2 Software diagnostic process of integrated fault analysis and diagnosis systemfor transformer | 第62-63页 |
| 4.3.3 Design of winding hot spot monitoring function unit | 第63-65页 |
| 4.3.4 Design of the function unit of dissolved gas monitoring in oil | 第65-66页 |
| 4.3.5 Partial discharge monitoring unit | 第66-68页 |
| 4.3.6 Condition information monitoring function unit | 第68-69页 |
| 4.3.7 Condition information monitoring function unit | 第69-71页 |
| 4.3.8 Integrated diagnostic function unit | 第71-72页 |
| 5 Conclusion and Prospect | 第72-74页 |
| Reference | 第74-77页 |
| Acknowledgements | 第77-78页 |
| 附件 | 第78页 |
