Ma Zhi-yong

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The safe and stable operation of the large capacity thermal power unit must be seriously affected by the rapidly changed load when the unit participates in peak regulation. This paper takes a domestic 600MW steam turbine unit as an example, sets up a mass-spring model with lumped parameter method and calculates the torsional vibration responses of the(More)
Hilbert-Huang transform (HHT) is a new signal processing method for analyzing the non-linear and non-stationary signal, but it still has some problems. This paper discusses the problems of illusive components and mode confusion due to HHT, uses the Kolmogorov-Smirnov test and wavelet transform to deal with these two shortcomings, proposes the similarity(More)
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