新型交流调磁型永磁同步电机基本机理及运行特性  

Basic Mechanism and Operation Characteristics of a Novel AC Flux-regulation Permanent Magnet Synchronous Motor

作　　者：王柄东 王道涵[1] 王承启 许铖 王秀和[1] WANG Bingdong;WANG Daohan;WANG Chengqi;XU Cheng;WANG Xiuhe(School of Electrical Engineering,Shandong University,Jinan 250061,Shandong Province,China)

机构地区：[1]山东大学电气工程学院,山东省济南市250061

出　　处：《中国电机工程学报》2023年第7期2573-2584,共12页Proceedings of the CSEE

基　　金：国家自然科学基金项目(51737008,51977125);山东省自然科学杰出青年基金项目(ZR2019JQ20)。

摘　　要：以提升永磁同步电机广速域运行性能为目标,提出一种新型交流调磁型永磁同步电机(AC flux-regulation permannent magnet synchronous motor,ACFR-PMSM),相较于传统永磁同步电机,所提电机拥有独立的轴向定子及轴向交流绕组,且转子上设计有凸出的轴向导磁极。该电机的数学模型、等效磁路模型和三维有限元模型分别被建立,并通过对比计算证明了所搭建模型的准确性。另外,通过对该电机等效磁路模型的分析,归纳了电磁性能与径向定子裂比、电机轴径比、永磁体参数的关系,进而完成了该电机关键尺寸参数的优选设计。采用三维有限元分析进行了所设计电机与传统永磁电机的电磁性能对标,结果表明,ACFR-PMSM拥有更优秀的磁场调节能力、更低的永磁体退磁风险及更宽的恒功率运行范围。最后,制造了一台ACFR-PMSM样机并搭建了测试平台,经验证,所制造样机的实测结果与有限元仿真结果的吻合度良好。样机的性能测试结果展现了ACFRPMSM在诸如电动汽车驱动、航空起动/发电系统、新能源发电等需要进行高效磁场调节及高性能宽速域运行领域的广阔应用前景。In order to improve the operational performance of permanent magnet synchronous motors(PMSM)in the wide speed range,an AC flux-regulation permanent magnet synchronous motor(ACFR-PMSM)is proposed in this paper.Compared with the ordinary PMSM,the proposed motor has an independent axial stator and axial AC windings,and the rotor is provided with protruding axial magnetic poles.The mathematical model,magnetic equivalent circuit(MEC)model,and 3D finite element analysis(3D FEA)model are established,respectively.In addition,the accuracy of models is verified by calculation and comparison.The MEC model is used to analyze the relationship between motor performance and key parameters,thus assisting the optimal design of the motor.ACFR-PMSM and PMSM are compared by 3D FEA.The results show that the proposed motor has excellent flux regulation ability,low irreversible demagnetization risk,and a wide constant power range.Finally,the prototype is manufactured and the test platform is built.The test results are in good agreement with the simulation results.Furthermore,the magnetic field adjustment tests of ACFR-PMSM show its broad application prospects in fields such as electric vehicle,aviation starter/generator systems,renewable power generation systems,etc.,which requires high efficiency magnetic field adjustment and a wide constant power range.

关 键 词：永磁同步电机 等效磁路模型 三维有限元分析 磁场调节 广速域恒功率运行 

分 类 号：TM341[电气工程—电机]