Pressure pulsation test of Wanjiazhai Francis turbine at different loads
Jinjun Li,
Qiang Liu,
Weigang Wang
et al.
Abstract:In this paper, the pressure pulsation of Wanjiazhai Francis turbine at six monitoring points under different loads is monitored. Fast Fourier Transform(FFT) was used to perform time-frequency conversion, and the data was analyzed from both time-domain and frequency-domain perspectives. From a time perspective, the pressure pulsation at the upstream bladeless area is the most sensitive to changes in power. From a frequency perspective, the frequency components of pressure pulsation are more complex when P=40kW,… Show more
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