新型混合励磁永磁同步电机齿谐波电动势的协调控制

摘要

For hybrid excitation permanent magnet synchronous generator utilizing tooth harmonic magnetic field for excitation,it hopes that tooth harmonic electromotive force（EMF） of the rotor tooth harmonic windings,which is induced and used for excitation,is large enough,and that of the stator armature windings,which is induced and makes EMF waveform distortion,is small enough.The principle of tooth harmonic EMF is analyzed in order to realize the target,and the main factors that influence tooth harmonic EMF of stator and rotor windings are found and some practical conclusions are drawn after discussed in detail.Finally,calculation and experiment are performed for one hybrid excitation permanent magnet synchronous generator utilizing tooth harmonic for excitation,and the comparison of calculated and experimental results verify the correctness of the theoretical analysis.%对于利用齿谐波磁场来励磁的混合励磁永磁同步电机,希望转子齿谐波绕组中感应的用来励磁的齿谐波电动势足够大,而定子电枢绕组中感应的影响电动势波形的齿谐波电动势尽可能小。为了实现这一目标,分析了齿谐波电动势产生的机理,找到了影响定、转子绕组齿谐波电动势大小的主要因素,并进行了详细的讨论,得出了一些实用的结论。最后,对一台齿谐波励磁的混合励磁永磁同步发电机进行了理论计算和实验,计算结果和实验结果的比较验证了理论分析的正确性。