| 引用本文: | 王 臻,李 承,王 蕾,陈 旭,李惠章.基于解析导纳的感应电机故障诊断[J].电力自动化设备,2016,36(8): |
| WANG Zhen,LI Cheng,WANG Lei,CHEN Xu,LI Huizhang.Induction generator fault diagnosis based on analytical admittance[J].Electric Power Automation Equipment,2016,36(8): |
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| 摘要: |
| 提出了一种利用定子解析导纳辨识感应电机转子断条故障、偏心故障以及复合故障的方法。利用Hilbert变换相移作用获得解析电流和解析电压从而构造解析导纳，并从中提取特征故障频率。为了最大限度地减少硬件开销，利用迭代Prony算法，精确地求出基波参数，构造解析电压。理论和实验结果表明，所提方法可有效在线识别感应电机单一故障和复合故障。 |
| 关键词: 电机 Hilbert变换 解析导纳 故障特征频率 复合故障 迭代Prony算法 |
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| Induction generator fault diagnosis based on analytical admittance |
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WANG Zhen1,2, LI Cheng1,2, WANG Lei2, CHEN Xu2, LI Huizhang2
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1.State Key Laboratory of Advanced Electromagnetic Engineering and Technology，Huazhong University of Science and Technology，Wuhan 430074，China;2.School of Electrical and Electronic Engineering，Huazhong University of Science and Technology，Wuhan 430074，China
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| Abstract: |
| The stator analytical admittance is proposed to identify the broken bar fault，eccentricity fault and mixed faults of inductor generator rotor. The phase shift function of Hilbert transform is applied to obtain the analytical voltage and current for constructing the analytical admittance，from which，the fault characteristic frequency is extracted. For minimizing hardware cost，the iterative Prony algorithm is adopted to accurately obtain the fundamental parameters and construct the analytical voltage. Theoretical analysis and experimental results show that the proposed method can online identify single or mixed faults of inductor generator effectively. |
| Key words: electric generators Hilbert transform analytical admittance fault characteristic frequency mixed faults iterative Prony algorithm |
