实心转子永磁同步电机损耗分析与混合励磁技术研究 - Ansys.PDF

实心转子永磁同步电机损耗分析与混合励磁技术研究 [刘业] [南京航空航天大学，211106] [ 摘 要 ] 永磁同步电机(Permanent Magnet Synchronous Machine, PMSM)具有高效率、高功率密度和 高可靠性等优势。但由于主气隙磁密难以调节，作为驱动电机运行，恒功率区窄、高速区效率 较低，作为发电机运行，难以实现恒压输出。混合励磁技术永磁电机磁场调节技术，在电动汽 车驱动系统和航空电源系统等领域具有重要的应用前景。本文首先对切向结构实心磁极永磁同 步电机损耗展开研究。通过 Maxwell 有限元分析得到实心磁极损耗受到电机参数的影响规律， 并在此基础上提出优化方法，通过 Maxwell 有限元软件验证优化结果。转子磁分路混合励磁 同步电机(Hybrid Excitation Synchronous Machine, HESM)在切向结构实心磁极 PMSM 基础 上利用混合励磁技术发展而来，兼具高功率密度和磁场可调的优点。 [ 关键词 ] 切向结构实心磁极永磁同步电机损耗，混合励磁技术，转子磁分路 Research on Interior-Circumferential Permanent Magnet Synchronous Machine and its Hybrid Excitation Technology [Ye Liu] [Nanjing University of Aeronautics and Astronautics, 211106] [ Abstract ] Permanent magnet synchronous machines (PMSMs) have the advantages of high efficiency, high power density and high reliability. Air-gap magnetic field of PMSMs is difficult to adjust as motors or generators . Hybrid excitation technology makes reasonable combination of permanent magnet excitation and electro-magnetic excitation, which has a bright future for the electric vehicle drive system and aircraft power system. The loss of solid-rotor permanent magnet synchronous machine is firstly investigated and optimized by Mawell. Hybrid excitation synchronous machine (HESM) with magnetic shunt rotor is developed from interior-circumferential PMSM with the hybrid excitation technology, capturing the merits of high power density and field regulation capability. [ Keyword ] Interior-circumferential PMSM, hybrid excitation technology, magnetic shunt rotor. 1 前言 1.1 研究背景和意义 1.1.1 飞机变频交流电源系统对发电机的要求