| 无人机交流发电系统故障诊断技术 |
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| 引用本文： | 李红,杨善水.无人机交流发电系统故障诊断技术[J].南京航空航天大学学报,2009,41(Z1). |
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| 作者姓名： | 李红 杨善水 |
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| 作者单位： | 1. 南京航空航天大学无人机研究院,南京,210016
2. 南京航空航天大学自动化学院,南京,210016 |
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| 摘 要： | 使用MATLAB 7.0软件,建立了飞机交流发电系统模型.应用小波分析工具箱Wavelet Toolbox 3.0,对仿真的故障进行检测诊断.针对某型飞机2 kVA交流发电机,建立了飞机交流发电系统,利用纯阻性负载创建一个测试点的新方法,对此系统进行单相负载短路仿真.运用小波函教对测试点的故障信号进行尺度分解,获得奇异点发生时间及其特性,从而对采集的故障信号进行诊断和分析.
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| 关 键 词： | 同步发电机 小波分析 奇异点 故障诊断 |
Fault Diagnosis Technology for UAV AC Electric Power Generating System |
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| Li Hong,Yang Shanshui.Fault Diagnosis Technology for UAV AC Electric Power Generating System[J].Journal of Nanjing University of Aeronautics & Astronautics,2009,41(Z1). |
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| Authors: | Li Hong Yang Shanshui |
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| Abstract: | MATLAB 7.0 software is used to establish a model for the aircraft AC generation system. Wavelet-analysis toolbox, called the Wavelet Toolbox 3.0, is utilized to detect and to diagnose the faults. The aircraft AC electric power generating system, targeting at a 2 kVA AC generator in an aircraft, is established. The new method for creating a new testing point by using pure resistance load is given. The single-phase load short-circuit of the system based on the method is simulated. The occurring time and characteristics of the singularity are obtained by applying the scale-decomposition of the wavelet function on the fault signals of the testing point. Finally, the collected fault signals are diagnosed and analyzed. |
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| Keywords: | synchronous generator wavelet analysis singularity fault diagnosis |
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