| 大型水轮发电机组临界转速现场识别技术 |
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| 引用本文： | 曹剑绵.大型水轮发电机组临界转速现场识别技术[J].水力发电学报,1996(3):72-78. |
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| 作者姓名： | 曹剑绵 |
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| 作者单位： | 德阳东方电机股份有限公司 |
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| 摘 要： | 提出了一种从水轮机补气所激起的大轴摆度中识别水电机组临界转速的新方法，并对安康水电厂一号机组临界转速进行了现场识别。
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| 关 键 词： | 补气，脉冲响应，频率响应，FIR滤波，时域平均，临界转速 |
Identification of Critical Speed for Large Hydro Turbine Generator Units |
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| Cao Jianmian.Identification of Critical Speed for Large Hydro Turbine Generator Units[J].Journal of Hydroelectric Engineering,1996(3):72-78. |
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| Authors: | Cao Jianmian |
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| Abstract: | In this paper, a new on-site identification method for critical speed of large hydrogenerator set is introduced. The critical speed is caleulated by FFT process to impulse response function of shaft system of hydogenerator set, which is obtained by FIR and in time domain average to the shaft vibration signal caused by aeration. The critical speed of No. 1 hydrogenerator set of Ankang hydropower station is calculated successfully. |
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| Keywords: | Air intrusion Impulse respond Frequency respond FIR filter Time domain average Critical speed |
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