| 基于小波包分析的冷水机组故障诊断分析 |
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| 引用本文： | 郑洁,孙海军,张霞. 基于小波包分析的冷水机组故障诊断分析[J]. 暖通空调, 2007, 37(8): 46-49 |
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| 作者姓名： | 郑洁 孙海军 张霞 |
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| 作者单位： | 重庆大学,重庆大学,重庆大学 |
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| 基金项目： | 重庆市建委科研项目;重庆大学校科研和教改项目 |
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| 摘 要： | 模拟了单螺杆式冷水机组的9个常见故障,选取压缩机吸气温度和压缩机排气温度作为故障诊断的特征参数,将特征参数进行小波包分解和重构,提取故障特征信号,建立了特征向量-系统状态的对应关系。
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| 关 键 词： | 单螺杆冷水机组 小波包分析 故障诊断 特征参数 诊断准则 |
| 修稿时间： | 2006-11-242007-06-22 |
Fault diagnosis of water chillers based on wavelet-packet analysis |
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| Zheng Jie,Sun Haijun,Zhang Xia. Fault diagnosis of water chillers based on wavelet-packet analysis[J]. Journal Heating Ventilating and Airconditioning, 2007, 37(8): 46-49 |
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| Authors: | Zheng Jie Sun Haijun Zhang Xia |
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| Abstract: | Simulates nine common faults of single-screw chillers.Considers the suction temperature and exhaust temperature of the compressor as characteristic parameters,decomposes and reconstructs the characteristic parameters by wavelet-packet analysis method,extracts the signals of fault characters,and establishes the relationship between characteristic vector and system state. |
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| Keywords: | single-screw chiller wavelet-packet analysis fault diagnosis characteristic parameter diagnostic principle |
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