Analysis and optimization of radial electromagnetic wave of synchronous generator based on distributed magnetic circuit method
In order to explore the influence of the distributed magnetic circuit method on the radial e-lectromagnetic force wave of synchronous generators,a non-salient pole rectifier synchronous genera-tor was taken as the research object.By analyzing the internal relationship between electromagnetic structure parameters and electromagnetic force wave characteristics,the distributed magnetic circuit method was used to optimize the electromagnetic force wave.The comparison of finite element simula-tion results shows that the rotor first-order tooth harmonic force wave of 18 times frequency and 36 orders has a greater influence on the medium and high frequency vibration of the motor.And the in-fluence of changes in air gap length and slot opening width on the radial electromagnetic force wave is clarified,analytical calculation results are in good agreement with the finite element results with high accuracy,and the calculation time is significantly reduced,thus verifying the effectiveness of the dis-tributed magnetic circuit method,which provids design guidance principles for generator electromag-netic vibration optimization.
non-salient pole rectifierradial electromagnetic wavedistributed magnetic circuit methodair gap lengthslot width
万方数据
维普
