转子磁分路混合励磁同步电机漏磁特性分析与优化设计Feature-ANSYS.PDF

转子磁分路混合励磁同步电机漏磁特性分析与优化设计 [刘业] [江苏省新能源发电与电能变换重点实验室（南京航空航天大学），江苏省 南京市 210016] [ 摘 要 ] 转子磁分路混合励磁同步电机由切向结构永磁同步电机发展而来，转子导磁体轴向延伸为电机 提供轴向磁路，调节轴向磁通达到调节主气隙磁通的目的。轴向磁路的存在，使得电机存在较为严重的漏 磁，漏磁影响更为突出。 本文针对转子磁分路混合励磁同步电机的漏磁特性进行深入研究，通过三维场有限元分析验证漏磁通 的磁通路径与分布特性，并研究关键参数对漏磁特性的影响，总结优化规律。在漏磁特性分析基础上发展 精确的三维等效磁网络模型，利用现有的24kW 以及100kW 样机对模型进行对比分析验证。空载主气隙磁 通和空载相电势模型计算结果与有限元仿真结果以及实验结果误差均在8% 以下，验证了模型与漏磁特性分 析的正确性。基于漏磁特性以及优化规律，本文对24kW 转子磁分路混合励磁同步电机的结构进行了优化， 并尝试探索新的拓扑结构。 [ 关键词 ] 漏磁特性，等效磁网络，转子磁分路混合励磁同步电机，三维有限元分析 Feature Investigation of Flux Leakage and Optimization of Hybrid Excitation Synchronous Machine with Magnetic Shunt Rotor [Ye Liu] [Jiangsu Provincial Key Laboratory of New Energy Generation and Power Conversion (Nanjing University of Aeronautics and Astronautics), Nanjing 210016, Jiangsu Province, China] [ Abstract ] Hybrid excitation synchronous machine (HESM) with magnetic shunt rotor is proposed on the basis of flux concentrating IPM, producing axial flux path with extended magnetic poles and regulating the main flux by regulating the axial flux. Because of the axial flux path, the flux leakage of the machine is more serious and the effect of flux leakage is more significant. Magnetic flux leakage characteristics of the machine is researched, and the paths and distribution characteristics of flux leakage is analyzed by 3D-FEM in the paper. The influence of key parameters on the magnetic flux leakage characteristics is studied and the optimization principles are summarized. A precise 3D equivalent magnetic network (3D-EMCN) is developed based on the study of the magnetic flux leakage characteristics, and validated by the simulated and measured results of 24kW and 100kW