电工技术学报2017，Vol.32Issue(19)：52-61,10.DOI:10.19595/j.cnki.1000-6753.tces.L70485
五相永磁容错型游标电机弱磁特性研究
Research on Flux-Weakening Performances for Five-Phase Fault-Tolerant Permanent-Magnet Vernier Motors
摘要
Abstract
The fault-tolerant permanent magnet vernier (FTPMV) machine combines the advantages of high torque density of the permanent-magnet vernier machine and high reliability of the fault-tolerance permanent-magnet machine.Hence,it has become a hot research topic for experts and scholars.In order to study the operating performances of this kind of machine in low and high speed operation regions,the structure,modulation principle of magnetic fields and inductance characteristics of two five-phase machines are compared and analyzed in this paper.Additionally,the mathematical model of five-phase machines is deduced based on flux-weakening and the drive system is established according to the space vector pulse width modulation (SVPWM) control method.Based on the stage control strategy,in the low speed region,id =0 control strategy is used.In the high speed region,a kind of flux-weakening control strategy is used and the flux-weakening characteristics of machines are studied importantly,in which the moment of flux-weakening is judged based on the difference between bus-bar voltage and back-EMFs.Moreover,by parameters calculation and simulations,it can be found that the new FTPMV machine possesses better flux-weakening capacity than the conventional FTPMV machine when they works on the condition of rated current.Finally,the theoretical analysis is verified by experimental results.关键词
永磁同步电机/游标电机/容错电机/弱磁特性Key words
Permanent magnet synchronous machine/vernier machine/fault-tolerant machine/flux-weakening performance分类
信息技术与安全科学引用本文复制引用
刘国海,杨欣宇,徐亮,赵文祥,周华伟..五相永磁容错型游标电机弱磁特性研究[J].电工技术学报,2017,32(19):52-61,10.基金项目
国家自然科学基金项目(51422702,51577084)、江苏省“333工程”科研项目(BRA2015302)、江苏省高校自然科学研究重大项目(15KJA470002)和江苏省优势学科资助. （51422702,51577084）
