摘要
模块化电机便于拆卸与运输,可以减少运输成本,为实现清洁替代、提高能源利用率起到了关键作用。在此背景下,设计一台定转子双模块化风力发电机,保证电机电磁性能并降低加工安装成本。首先,从槽极配合的选择出发,从电机电磁性能方面校验模块化电机优劣性,在合理的槽极配合下,改进电机拓扑结构,削弱低次非工作谐波,改善电机模块化所形成的不利影响,优化电机电磁性能;其次,对传统外定子模块化永磁电机加以改进创新,设计定转子双模块化结构,进一步加强模块化电机运输优势;最后,改进电机转子励磁结构,采用铁氧体替代部分永磁体,节约电机成本。对比分析采用铁氧体替代的定转子双模块化电机与传统永磁体励磁的模块化电机的电磁性能,验证了该电机在电磁特性及经济特性方面的优越性。通过仿真分析,验证了本文理论分析的合理性。
The modular motor is easy to disassemble and transport,reduces transportation costs,and plays a key role in achieving clean replacement and improving energy efficiency.In this context,this paper aims to design a stator and rotor dual modular wind turbine to ensure the electromagnetic performance of the motor and reduce the processing and installation cost.Based on the selection of slot-pole matching,this paper verifies the advantages and disadvantages of modular motors from the aspect of electromagnetic performance of the motor.Under the reasonable slot and pole cooperation,the topology of the motor is improved,the low non-working harmonics are weakened,the adverse effects of the modularization of the motor are improved,and the electromagnetic performance of the motor is optimized.Then the traditional external stator modular permanent magnet motor is improved and innovated.The stator and rotor double modular structure is designed to further strengthen the advantages of modular motor transportation.Finally,the excitation structure of the motor rotor is improved,and ferrite is used to replace part of the permanent magnet to save the motor cost.The electromagnetic performance of the stator and rotor dual modular motor replaced by ferrite and the modular motor with traditional permanent magnet excitation is compared and analyzed,and the superiority of the motor in terms of electromagnetic characteristics and economic characteristics is verified.Simulation analysis is carried out to verify the rationality of the theoretical analysis in this paper.
作者
杨帅
王秀平
YANG Shuai;WANG Xiuping(School of Electric Power,Shenyang Institute of Engineering,Shenyang 110136,Liaoning Province)
出处
《沈阳工程学院学报（自然科学版）》
2024年第2期60-67,共8页
Journal of Shenyang Institute of Engineering:Natural Science
关键词
模块化电机
定转子双模块
铁氧体励磁
有限元分析
拓扑结构优化
Modular generator
Dual modules of stator and rotor
Ferrite
Finite element analysis
Topology optimization
