Design and analysis of a hybrid axial field flux-switching permanent magnet machine

Xu, Da; Lin, Ming Yao; Fu, Xing He; Li, Hao; Zhang, Wei; Zhao, Jie

doi:10.1109/asemd.2015.7453590

Cited by 3 publications

(3 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Define A si as the effective magnetic flux area corresponding to the ith magnetic potential source, so, when ψ represents the angle with reference to d axis, the flux density of outer side of the rotor and the Fourier expansion on the calculated position can be expressed as [40]: (28) where r and α are the position of the calculated point, representing the radial length and the circumferential angle, respectively. The general solution of (28) in different regions can be expressed by separation of variables method as follows: (31) where i, ii, and iii represent the regions of the slot, slotopening, and air-gap. A1, A2, A3, B3, C3, and D3 are the coefficients to be determined.…”

Section: A Magnetic Circuit Modelmentioning

confidence: 99%

See 1 more Smart Citation

Analytical Model of Air-Gap Field in Hybrid Excitation and Interior Permanent Magnet Machine for Electric Logistics Vehicles

Zhang

Lei

et al. 2020

IEEE Access

View full text Add to dashboard Cite

With the increasing energy shortages and environmental degradation, electric logistics vehicle (ELVs) with energy conservation and environmental protection has become a research hotspot. The design of machine is the key to develop ELVs. Magnetic field analysis is the most critical issue since its accuracy affects the calculation of motor torque, loss, and other characteristics. To provide a calculation method for the field and performance analysis of the machine for ELVs, this paper presents an analytical model of air-gap field for hybrid excitation and interior permanent magnet machine. In the proposed model, it is taken into account for the shape of the stator and rotor teeth. The flux density on the rotor side is derived by equivalent magnetic circuit (EMC) with leakage magnetic flux. Taking the calculated flux density as one of the second boundary conditions, the air-gap field distribution is calculated by magnetic potential model with the eccentricity of the rotor. To verify the analytical method, we adopted the finite element method. The simulation results of the air-gap flux, back electromotive force, and cogging torque are in good agreement with the analytical results. Besides, applying the analytical model, the machine can be optimized for obtaining the optimal air-gap flux density distribution. The hybrid excitation machine with salient pole and interior magnets can provide a good flux density waveform. The study offers a helpful analytical method for design and optimization of the type of machine for ELVs. INDEX TERMS Analytical method, hybrid excitation and interior permanent magnet machine, equivalent magnetic circuit (EMC), the eccentricity of the rotor.

show abstract

Section: A Magnetic Circuit Modelmentioning

confidence: 99%

“…Each PM is placed on between two adjacent salient poles respectively. References [30]- [31] provide other topologies of HESMs with complicated geometric structure, in which the studies are only done by the FEM.…”

Section: Introductionmentioning

confidence: 99%

Analytical Model of Air-Gap Field in Hybrid Excitation and Interior Permanent Magnet Machine for Electric Logistics Vehicles

Zhang

Lei

et al. 2020

IEEE Access

View full text Add to dashboard Cite

show abstract

“…The hybrid axial field flux‐switching permanent magnet (HAFFSPM) machine is a novel hybrid excitation machine, which incorporates the positive characteristics of a flux‐switching permanent magnet machine (FSPMM) and axial field machine [1]. The advantages of the HAFFSPM machine, such as high‐torque density, flexible flux regulation capacity, robust rotor structure, and efficient thermal management make it more suitable for an electrical vehicle and industrial applications that may be required for a wide speed range and smooth output torque.…”

Section: Introductionmentioning

confidence: 99%

Investigation of cogging torque reduction for a 6/10 hybrid axial field flux‐switching permanent magnet machine by harmonic field current injection

Jiang

et al. 2020

IET Electric Power Applications

Self Cite

View full text Add to dashboard Cite

Hybrid axial field flux‐switching permanent magnet (HAFFSPM) machine exhibits a high‐cogging torque due to its doubly salient structure and flux focusing effect. In consideration of the armature and field windings are both equipped in the HAFFSPM machine, a cogging torque reduction method by the harmonic field current injection is proposed in this study. Initially, the mathematical model of the HAFFSPM machine is analysed. Moreover, the theoretical principle of the proposed method is investigated based on the analytical model of the machine. The amplitude and phase angle of the injected current are calculated according to the harmonic component of the cogging torque. The feasibility of the proposed method is analysed and validated by both the finite‐element analysis method and experiments on the prototype. Finally, the comparison between the proposed method and several topology optimisation methods of the HAFFSPM machine is given to indicate the priority of the harmonic field current injection method on cogging torque reduction.

show abstract

Analysis and Optimization of Equivalent Magnetic Circuit Model for a Hybrid Axial Field Flux-Switching Permanent Magnet Machine

Zhu

et al. 2018

2018 21st International Conference on Electrical Machines and Systems (ICEMS)

View full text Add to dashboard Cite

Design and analysis of a hybrid axial field flux-switching permanent magnet machine

Cited by 3 publications

References 2 publications

Analytical Model of Air-Gap Field in Hybrid Excitation and Interior Permanent Magnet Machine for Electric Logistics Vehicles

Analytical Model of Air-Gap Field in Hybrid Excitation and Interior Permanent Magnet Machine for Electric Logistics Vehicles

Investigation of cogging torque reduction for a 6/10 hybrid axial field flux‐switching permanent magnet machine by harmonic field current injection

Analysis and Optimization of Equivalent Magnetic Circuit Model for a Hybrid Axial Field Flux-Switching Permanent Magnet Machine

Contact Info

Product

Resources

About