Armature Reaction Field and Inductance Feature Analysis of a Hybrid Excitation Synchronous Machine With Magnetic Shunting Rotor
Dai Ji,Zhang Zhuoran,Mu Yang,Liu Ye
Jiangsu Provincial Key Laboratory of New Energy Generation and Power Conversion Nanjing University of Aeronautics and Astronautics Nanjing 210016 China
Abstract：An optimized hybrid excitation synchronous machine(HESM) with magnetic shunting rotor and brushless field excitation is proposed and flux density distribution is discussed. Armature reaction field and inductance feature of the machine is investigated in comparison with that of permanent magnet synchronous machine(PMSM). It is shown that introduction of excitation winding and magnetic shunting structure has significant effect on armature reaction field of the machine. Inductance feature is determined by the saturation of both axial and radial flux path which vary with field current and armature current. And on this basis, influence of inductance feature on motoring operation is analyzed and the risk of irreversible demagnetization of the magnets is estimated. A novel topology is presented and compared to search the influence of structure variation on inductance feature of the HESM. A 24kW prototype is developed, and the 3D finite element analysis(FEA) results in accordance with measured results validate the inductance variation of the HESM.
戴冀,张卓然,沐杨,刘业. 转子磁分路混合励磁同步电机电枢反应磁场与电感特性研究[J]. 电工技术学报, 2015, 30(12): 276-283.
Dai Ji,Zhang Zhuoran,Mu Yang,Liu Ye. Armature Reaction Field and Inductance Feature Analysis of a Hybrid Excitation Synchronous Machine With Magnetic Shunting Rotor. Transactions of China Electrotechnical Society, 2015, 30(12): 276-283.
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2015, Vol. 30 
