Substantial efforts are currently underway around the world to develop environmentally friendly transportation,of which the development of electric vehicles plays a key role.Statorpermanent magnet(PM)machines have att...Substantial efforts are currently underway around the world to develop environmentally friendly transportation,of which the development of electric vehicles plays a key role.Statorpermanent magnet(PM)machines have attracted wide attention due to the robust rotor structure and comparable performance in terms of normal permanent magnet synchronous machines(PMSM)having magnets in the roto.In particular,the flux-switching machines feature a particular magnetic circuit configuration that favors Dy-free magnets in terms of demagnetization risk,and as a result,the cost of the motor can be reduced considerably.With focus on applications in electric vehicles(EVs)and hybrid electric vehicles(HEVs),this paper reviews the latest developments of PM flux switching machines,with particular emphasis on the novel machine topologies and control strategies.展开更多
提出一种混合动力汽车(hybrid electric vehicle,HEV)用新型定子永磁式双转子电机(stator-permanent-magnet double-rotor motor,SPM-DRM),采用双凸极式电机结构简化了中间转子,有效提高中间转子的机械强度,并克服了双转子永磁同步电机...提出一种混合动力汽车(hybrid electric vehicle,HEV)用新型定子永磁式双转子电机(stator-permanent-magnet double-rotor motor,SPM-DRM),采用双凸极式电机结构简化了中间转子,有效提高中间转子的机械强度,并克服了双转子永磁同步电机研究中存在的中间转子永磁体散热难的问题。分析SPM-DRM应用于HEV的能量传递原理,结合有限元分析所得电机电磁参数,建立了SPM-DRM的数学模型,仿真分析了SPM-DRM的多工况运行模式;研制了实验原理样机并搭建基于SPM-DRM的动力混合系统实验平台,完成起动运行、纯电动驱动、混合驱动等多种典型工况的实验与分析。实验结果验证了理论分析的正确性、样机设计和控制策略的合理性。为该类电机实际应用于混合动力汽车的进一步研究提供参考。展开更多
In this paper,a new hybrid excited doubly salient stator-permanent-magnet motor is proposed,where both permanent magnets and DC field windings are located in the stator.In theory,the mathematical model and design meth...In this paper,a new hybrid excited doubly salient stator-permanent-magnet motor is proposed,where both permanent magnets and DC field windings are located in the stator.In theory,the mathematical model and design method of the motor are developed.The corresponding output power equation and the relationship between the flux control capability and the extended speed range are deduced in details.By using an efficient "one-step" three-dimensional(3D) finite element method,the electromagnetic performances are analyzed,in which the leakage flux outside the stator circumference and end-effect are taken into account.Based on the operation principle of the motor,the control strategy and scheme are developed and implemented experimentally.Both experimental results and finite element analysis show that the proposed motor not only maintains the advantages of doubly salient permanent magnet motors,but also offers high energy efficiency over a wide speed range,which makes the motor an interesting candidate for electric vehicles.展开更多
基金part by 973 Program of China(2013CB035603)NSFC(51137001,51322705).
文摘Substantial efforts are currently underway around the world to develop environmentally friendly transportation,of which the development of electric vehicles plays a key role.Statorpermanent magnet(PM)machines have attracted wide attention due to the robust rotor structure and comparable performance in terms of normal permanent magnet synchronous machines(PMSM)having magnets in the roto.In particular,the flux-switching machines feature a particular magnetic circuit configuration that favors Dy-free magnets in terms of demagnetization risk,and as a result,the cost of the motor can be reduced considerably.With focus on applications in electric vehicles(EVs)and hybrid electric vehicles(HEVs),this paper reviews the latest developments of PM flux switching machines,with particular emphasis on the novel machine topologies and control strategies.
文摘提出一种混合动力汽车(hybrid electric vehicle,HEV)用新型定子永磁式双转子电机(stator-permanent-magnet double-rotor motor,SPM-DRM),采用双凸极式电机结构简化了中间转子,有效提高中间转子的机械强度,并克服了双转子永磁同步电机研究中存在的中间转子永磁体散热难的问题。分析SPM-DRM应用于HEV的能量传递原理,结合有限元分析所得电机电磁参数,建立了SPM-DRM的数学模型,仿真分析了SPM-DRM的多工况运行模式;研制了实验原理样机并搭建基于SPM-DRM的动力混合系统实验平台,完成起动运行、纯电动驱动、混合驱动等多种典型工况的实验与分析。实验结果验证了理论分析的正确性、样机设计和控制策略的合理性。为该类电机实际应用于混合动力汽车的进一步研究提供参考。
基金supported by the National Natural Science Foundation of China (Grant Nos.50807022,50337030,50729702)the Foundation of Jiangsu University (Grant No.09JDG031)
文摘In this paper,a new hybrid excited doubly salient stator-permanent-magnet motor is proposed,where both permanent magnets and DC field windings are located in the stator.In theory,the mathematical model and design method of the motor are developed.The corresponding output power equation and the relationship between the flux control capability and the extended speed range are deduced in details.By using an efficient "one-step" three-dimensional(3D) finite element method,the electromagnetic performances are analyzed,in which the leakage flux outside the stator circumference and end-effect are taken into account.Based on the operation principle of the motor,the control strategy and scheme are developed and implemented experimentally.Both experimental results and finite element analysis show that the proposed motor not only maintains the advantages of doubly salient permanent magnet motors,but also offers high energy efficiency over a wide speed range,which makes the motor an interesting candidate for electric vehicles.
