A New Hybrid Excitation Machine with Dual-Stator Single-Rotor Axial-Flux Topology for Electric Vehicle Traction Application

Hou, Jining; Geng, Weiwei; Zhu, Ting; Zhang, Yuqing; Li, Qiang; Zhang, Zhuoran

doi:10.23919/icems52562.2021.9634587

Cited by 8 publications

(3 citation statements)

References 16 publications

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“…According to expression (10), condition i d = 0 will simplify the control strategy of rotor maglev force as expression (11). It will also make the torque distribution easier based on the conclusion in chapter 3.…”

Section: Control Strategy Of Rotor Maglev Force In Apafhg 421 Rotor M...mentioning

confidence: 99%

“…When i d ≠0, the rotor maglev force model can no longer be expressed as expression (11) but (10). According to chapter 3, it is known that torque distribution is no longer influenced by i d , which is the basis of F q secondary compensation.…”

Section: Rotor Maglev Force Model When Id ≠mentioning

confidence: 99%

“…A single-stator double-rotor fractional-slot concentrated-winding (FSCW) axial-flux permanent-magnet machine is studied to verify a simple and reliable structure design to withstand large axial force [9] . A new type of axial-flux hybrid-excitation machine (AFHEM) is proposed and developed to improve the performance of electric vehicles using finite-element analysis (FEA) for electromagnetic design and performance simulation [10] . A study of the relationship between axial force and stator current in direct-quadrature rotating coordinate has been carried out by analyzing the 3-D finite-element model of an asymmetric-primary axial-flux hybrid-excitation generator (APAFHG), and a maglev force model has been derived [11] .…”

Section: Introductionmentioning

confidence: 99%

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Research on Levitation Force Control of an Axial-flux Hybrid-Excitation Generator with PI-Based Torque Distribution

Chen

Zhu

et al. 2023

J. Phys.: Conf. Ser.

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An asymmetric-primary axial-flux hybrid-excitation generator (APAFHG) has already been proposed to improve the starting performance of vertical axis wind turbines. However, the double-stator single-rotor structure causes a problem: different torque proportions create different rotor maglev forces, which will cause fluctuation and negatively impact the rotor bearing and even the operation of the wind power generation system. Therefore, a mathematical model considering the double-stator single-rotor structure and a proportional integral-based torque control strategy considering double-stator distribution are proposed in this paper to help APAFHG offer a good starting performance in vertical-axis wind power generation system and to stabilize maglev force generated by double-stator quadrature axis current simultaneously. Finally, the cooperation control of the maglev force and torque distribution is realized in MATLAB/Simulink, and the rotor maglev force will be relatively stable despite mechanical torque changes, which is a basis for the wind turbine to stably operate as the wind constantly fluctuates in vertical axis wind power system.

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Section: Control Strategy Of Rotor Maglev Force In Apafhg 421 Rotor M...mentioning

confidence: 99%

Section: Rotor Maglev Force Model When Id ≠mentioning

confidence: 99%