Title: No-Load Voltage Waveform Optimization of Tubular Hydro-Generator by Adjusting the Skew Degree of the Stator Slots
Abstract: In order to analyze the influence of tubular hydro-generator no-load voltage waveform by the stator slot skew, the computations are implemented and analyzed by multi-slice moving electromagnetic field-circuit coupling model of the generator, considering the factors such as rotor motion and nonlinearity of the time-varying electromagnetic field and stator slots skew, Based above, the no-load voltage waveforms of a 36MW tubular hydro-generator are optimized with the design schemes which adjust the stator slots skew degree. The results show that the waveforms of the no-load voltage are improved observably when reasonable skewing stator slots. The calculation results are coincident well with the test data. The research is helpful for improving design standard and enhancing the operation reliability of the large hydro-generator and electric network.
Publication Year: 2012
Publication Date: 2012-10-16
Language: en
Type: article
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