No-Load Voltage Waveform Computation of Tubular Hydro-Generator which Skew the Rotor

In order to analyze the influence of tubular hydro-generator no-load voltage waveform by the rotor skew, the multi-slice moving electromagnetic field-circuit coupling model of a 36MW tubular hydro-generator is established, then the no-load voltage waveforms of the design scheme which skew rotor is calculated.