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A novel 24/17-pole 3-phase stator wound field flux switching (SWFFS) machine with the combination of overlapping armature winding (OAW) and asymmetric stator poles (ASP) is proposed for higher torque density in this paper. Firstly, the air-gap modulation principle of the 24/17-pole OAW-SWFFS machine is analyzed to better understand its torque production mechanism. Secondly, since the torque capacity will be greatly restricted due to the serious magnetic saturation introduced by the OAW configuration, two effective measures are proposed from two perspectives in this paper to solve this problem. The first measure is to reduce the magnetic saturation directly by optimizing the area ratio of armature slot and excitation slot and thus the torque density can be improved effectively. The second measure is to further enhance the open circuit flux linkages, back electromotive force (EMF) and thus the torque density by adopting the proposed ASP structure. Furthermore, the accurate ASP distances which are corresponding to the largest back EMF can be obtained effectively based on the air-gap field modulation theory. Finally, the proposed design is validated experimentally by a prototype machine. The simulated and experimental results show that about 25.7% higher torque density can be obtained when compared with 24/14-pole SWFFS machine.
Wen Jiang; Wenxin Huang; Xiaogang Lin; Yong Zhao; Xu Wu; Yajun Zhao; Dingfeng Dong; Xuefeng Jiang. A Novel Stator Wound Field Flux Switching Machine with the Combination of Overlapping Armature Winding and Asymmetric Stator Poles. IEEE Transactions on Industrial Electronics 2021, PP, 1 -1.
AMA StyleWen Jiang, Wenxin Huang, Xiaogang Lin, Yong Zhao, Xu Wu, Yajun Zhao, Dingfeng Dong, Xuefeng Jiang. A Novel Stator Wound Field Flux Switching Machine with the Combination of Overlapping Armature Winding and Asymmetric Stator Poles. IEEE Transactions on Industrial Electronics. 2021; PP (99):1-1.
Chicago/Turabian StyleWen Jiang; Wenxin Huang; Xiaogang Lin; Yong Zhao; Xu Wu; Yajun Zhao; Dingfeng Dong; Xuefeng Jiang. 2021. "A Novel Stator Wound Field Flux Switching Machine with the Combination of Overlapping Armature Winding and Asymmetric Stator Poles." IEEE Transactions on Industrial Electronics PP, no. 99: 1-1.
The moving-coil type voice coil motor(VCM) has very light moving mass, which can achieve higher reciprocating frequency and work efficiency. However, the power supply lead connected to the moving coil is easily break under long-term reciprocating motion, so it is rarely used in compressor drive systems. The core technology of the compressor development trend is a driving motor with high-efficiency, high reciprocating frequency, certain piston stroke and light moving mass. Due to its structural characteristics, the moving-coil type VCM has broad application prospects. This paper proposes a new structure for power supply of a moving coil voice coil motor based on the principle of electromagnetic induction. The proposed VCM can overcome the problems of aging and disconnection of power supply lines caused by reciprocating motion, and meet the requirements of high-frequency and long-term repetitive action of the moving coil. The content of this article is as follows. Firstly, the construction of the proposed VCM is introduced. Secondly, the power-driven circuit based on interleaving double switch forward converter is provided. Finally, two working modes of drive circuit for reciprocating motion are proposed. Simulation and experimental results verify the effectiveness of the method.
Weikang Huang; Wenxin Huang; Dingfeng Dong; Li Cao; Can Sun. Research and Analysis of a Novel Voice Coil Motor with Wireless Power Supply. IEEE Transactions on Industry Applications 2021, PP, 1 -1.
AMA StyleWeikang Huang, Wenxin Huang, Dingfeng Dong, Li Cao, Can Sun. Research and Analysis of a Novel Voice Coil Motor with Wireless Power Supply. IEEE Transactions on Industry Applications. 2021; PP (99):1-1.
Chicago/Turabian StyleWeikang Huang; Wenxin Huang; Dingfeng Dong; Li Cao; Can Sun. 2021. "Research and Analysis of a Novel Voice Coil Motor with Wireless Power Supply." IEEE Transactions on Industry Applications PP, no. 99: 1-1.
A novel primary consequent-pole tubular transverse-flux flux-reversal linear machine (TTFFRLM) is proposed in this paper. The permanent magnets (PMs) of the machine are located on the inner surface of the short teeth of the primary iron cores for reducing the amount of PM in long stroke drive systems, and the primary is easily manufactured. The structure and principle of this machine are analyzed in detail. Based on the unit machine, a no-load equivalent magnetic circuit model is established by using the magnetic circuit method. Then, the equations of the no-load back electromotive force (back-EMF) and the electromagnetic thrust force are deduced. The simulation models of the unit machine are established by equivalent 2D finite element method (FEM) for saving computation time, and the static characteristics, including the flux field, the no-load back-EMF, and the electromagnetic thrust force, are analyzed. Detailed simulation and experimental results of a three-phase 4-poles 12-slots machine are given. The results verify the correctness and effectiveness of topology, model, and analysis method of the proposed TTFFRLM. Compared with the conventional TTFFRLM, the proposed prototype has the advantages of a lower cost and smaller electromagnetic thrust force ripple.
Dingfeng Dong; Wenxin Huang; Feifei Bu; Qi Wang; Wen Jiang; Xiaogang Lin. Modeling and Static Analysis of Primary Consequent-Pole Tubular Transverse-Flux Flux-Reversal Linear Machine. Energies 2017, 10, 1479 .
AMA StyleDingfeng Dong, Wenxin Huang, Feifei Bu, Qi Wang, Wen Jiang, Xiaogang Lin. Modeling and Static Analysis of Primary Consequent-Pole Tubular Transverse-Flux Flux-Reversal Linear Machine. Energies. 2017; 10 (10):1479.
Chicago/Turabian StyleDingfeng Dong; Wenxin Huang; Feifei Bu; Qi Wang; Wen Jiang; Xiaogang Lin. 2017. "Modeling and Static Analysis of Primary Consequent-Pole Tubular Transverse-Flux Flux-Reversal Linear Machine." Energies 10, no. 10: 1479.