A study about optimum stator pole design of Axial-gap switched reluctance motor

Murakami, Shinya; Goto, Hiroki; Ichinokura, O.

doi:10.1109/icelmach.2014.6960299

Cited by 14 publications

(5 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In [91], a new structure of the SRM, namely, the axial-flux SRM was introduced, which enables efficient utilization of the inner bore and coil end space. To further increase the torque density, the relationship between torque density and axial length (stator pole length, rotor pole length, and rotor yoke thickness) was investigated [92,93]. According to this relationship, three parameters (stator pole length, rotor pole length, and rotor yoke thickness) of axial length were separately optimized, and a maximum torque density of 47 Nm/L was obtained, which considers the three parameters [92,93].…”

Section: ) Motor Topology Developmentsmentioning

confidence: 99%

“…To further increase the torque density, the relationship between torque density and axial length (stator pole length, rotor pole length, and rotor yoke thickness) was investigated [92,93]. According to this relationship, three parameters (stator pole length, rotor pole length, and rotor yoke thickness) of axial length were separately optimized, and a maximum torque density of 47 Nm/L was obtained, which considers the three parameters [92,93]. The optimization of the stator sectional area could improve the torque density to 51 Nm/L regardless of the heat dissipation.…”

Section: ) Motor Topology Developmentsmentioning

confidence: 99%

See 1 more Smart Citation

Challenges Faced by Electric Vehicle Motors and Their Solutions

et al. 2021

View full text Add to dashboard Cite

Section: ) Motor Topology Developmentsmentioning

confidence: 99%

Section: ) Motor Topology Developmentsmentioning

confidence: 99%

Challenges Faced by Electric Vehicle Motors and Their Solutions

et al. 2021

View full text Add to dashboard Cite

“…The axial-flux SRM (AFSRM) is all the more interesting, as it is more compact than the radial-flux machine. As a consequence, there is an increasing interest toward the AFSRM for size reduction reasons (Murakami et al , 2014; Madhavan and Fernandes, 2012; Krishnan et al , 1990; Labak and Kar, 2013), even if the AFSRM is not very widespread in the bibliography and not often used in industrial applications. Madhavan and Fernandes (2013) and Tsai and Chen (2006) show that the comparison of both machines is favorable to the AFSRM owing to electromagnetic torque improvement.…”

Section: Introductionmentioning

confidence: 99%

Comparison of 8/6 radial and axial flux switched reluctance machines

Aydoun¹,

Parent

Tounzi

et al. 2019

COMPEL

View full text Add to dashboard Cite

Purpose This paper aims to deal with a performance comparison of an 8/6 radial-flux switched reluctance machine (RFSRM) and an axial-flux switched reluctance machine (AFSRM), presenting equivalent active surfaces. Design/methodology/approach An axial machine was designed based on the equivalent active surfaces of a radial one. After estimating the machine inductances with a reluctance network, finite elements numerical models have been implemented for a more precise inductance determination and to estimate the electromagnetic torque for both machines. Finally, the AFSRM was thoroughly examined by analyzing the impact of some geometric parameters on its performance. Findings The comparison of the RFSRM and AFSRM at equivalent active surfaces showed that the obtained axial machine is more compact along with an improvement in the electromagnetic torque. Practical implications The equivalent AFSRM is more compact, therefore more interesting for transport and on-board applications. Originality/value The RFSRM and AFSRM performance comparison using the same active surfaces has not been done. Moreover, the AFSRM presented has a rare design with no rotor yoke and where the rotor teeth are encapsulated in a nonmagnetic structure, allowing a more compact design.

show abstract

“…Consequently, the magnetic flux density and output thrust force can be improved. However, longer stator pole length means the volume of the actuator is larger which reduces the torque density of the actuator [43]- [44]. So, Goto et al [43] proposed that the stator pole length need to be optimize with longer stator pole length before the torque density gradually reduced.…”

Section: Influence Of Stator Pole Shoe and Pole Shapementioning

confidence: 99%

A Review: Design Variables Optimization and Control Strategies of a Linear Switched Reluctance Actuator for High Precision Applications

Kiat¹,

Ghazaly²,

Chong³

et al. 2017

IJPEDS

View full text Add to dashboard Cite

This paper presents the review of design variables optimization and control strategies of a Linear Switched Reluctance Actuator (LSRA). The introduction of various type of linear electromagnetic actuators (LEA) are compared and the advantages of LSRA over other LEA are discussed together with the type of actuator configurations and topologies. The SRA provides an overall efficiency similar to induction actuator of the similar rating, subsequently the friction and windage losses are comparable but force density is better. LSRA has the advantage of low cost, simple construction and high reliability compare to the actuator with permanent magnet. However, LSRA also has some obvious defects which will influence the performance of the actuator such as ripples and acoustic noise which are caused by the highly nonlinear characteristics of the actuator. By researching the design variables of the actuator, the influences of those design variables are introduced and the detail comparisons are analyzed in this paper. In addition, this paper also reviews on the control strategies in order to overcome the weaknesses of LSRA. Keyword:Actuator INTRODUCTIONLinear electromagnetic actuators (LEA) is a mechanism that generate linear motion due to the interactions of the magnetic fields and electromagnetic thrust. The major advantage of electromagnetic actuators over the conventional actuators is that it is almost maintenance free which is due to the absence of mechanical part such as gears The typical design of LEA can be characterized as three topologies: (i) Planar Single Sided; (ii) Planar Double Sided; (iii) Tubular. By comparison, the tubular topology of LEA has greater force density compare to planer topology actuator due to lesser flux leakage and tubular topology actuator minimized the stray magnetic field in the direction of travel along the stator and mover part [5]. Hence, the thrust force and

show abstract

A study about optimum stator pole design of Axial-gap switched reluctance motor

Cited by 14 publications

References 10 publications

Challenges Faced by Electric Vehicle Motors and Their Solutions

Challenges Faced by Electric Vehicle Motors and Their Solutions

Comparison of 8/6 radial and axial flux switched reluctance machines

A Review: Design Variables Optimization and Control Strategies of a Linear Switched Reluctance Actuator for High Precision Applications

Contact Info

Product

Resources

About