| 水轮发电机组故障诊断系统中几种征兆的获取 |
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| 引用本文： | 刘利娜,韩凤琴,张双全,章志平. 水轮发电机组故障诊断系统中几种征兆的获取[J]. 华中科技大学学报(自然科学版), 2003, 31(3): 86-88 |
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| 作者姓名： | 刘利娜 韩凤琴 张双全 章志平 |
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| 作者单位： | 1. 华中科技大学,能源与动力工程学院
2. 湖北省电力公司 |
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| 基金项目： | 国家自然科学基金资助项目 ( 5 99790 0 7) |
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| 摘 要： | 在水轮发电机组故障诊断系统中，征兆获取能力是评价故障诊断系统性能的重要指标，故障信号的特征提取影响到整个诊断过程的计算以及整个诊断系统的品质．将FFT、分形几何、相关分析、奇异谱等理论应用于故障诊断系统中征兆的获取，针对不同类型征兆采取不同的数学处理方法，并结合水轮发电机组故障诊断系统，证明了所述方法的合理性和可行性，提高了整个诊断系统的可靠性和准确性．
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| 关 键 词： | 水轮发电机组 故障诊断 分形维数 相关分析 奇异谱 征兆获取 |
| 文章编号： | 1671-4512(2003)03-0086-03 |
| 修稿时间： | 2002-06-10 |
Acquisition of systems in fault diagnosis of hydropower generating units |
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| Liu Lina Han Fengqing Zhang Shuangquan Zhang Zhiping Liu Lina Postgraduate, College of Energy , Power Eng.,Huazhong Univ. of Sci. , Tech.,Wuhan ,China.. Acquisition of systems in fault diagnosis of hydropower generating units[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 2003, 31(3): 86-88 |
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| Authors: | Liu Lina Han Fengqing Zhang Shuangquan Zhang Zhiping Liu Lina Postgraduate College of Energy & Power Eng. Huazhong Univ. of Sci. & Tech. Wuhan China. |
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| Affiliation: | Liu Lina Han Fengqing Zhang Shuangquan Zhang Zhiping Liu Lina Postgraduate, College of Energy & Power Eng.,Huazhong Univ. of Sci. & Tech.,Wuhan 430074,China. |
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| Abstract: | This paper discussed the application of FFT, sub dimension, correlation analysis, singularity spectrum to the acquisition of symptoms in fault diagnosis system. Different mathematic methods were applied to different types of symptoms. This proved to be reasonable and available in fault diagnosis of hydropower generating units so that the reliability and accuracy of the whole fault diagnosis system was improved. |
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| Keywords: | hydropower generating units fault diagnosis fractal dimension correlation analysis singularity spectrum symptom acquisition |
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