Rotor optimization of a segmented reluctance synchronous motor utilizing genetic algorithm

Abdollahi, Seyed Ehsan; Mirzaei, Mehran; Lesani, Hamid

doi:10.1109/icems.2009.5382780

Cited by 10 publications

(9 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Because SynRMs do not include permanent magnet, they cannot generate of magnet torque. Therefore, the electromagnetic torque, T e , consists of only reluctance torque and it is defined by the difference of daxis inductance, L d, and q-axis inductance, L q, given in (1) [24] 3 ( ) , 2…”

Section: A Working Principle and Torque Generation Of Synrm Machinesmentioning

confidence: 99%

Design and Analysis of a Rotor for a 22 kW Transversally Laminated Anisotropic Synchronous Reluctance Motor

Ozdil

Uzun

2021

ELEKTRON ELEKTROTECH

View full text Add to dashboard Cite

Substantial increase in energy consumption in all around the world has led to researchers to need to produce electrical machines with high energy efficiency since majority of energy has been consumed at industry, especially by electrical machines. Among electrical machines, the Synchronous Reluctance Machines (SynRMs) have been preferred to investigate in recent years due to lack of Induction Machines (IMs) in terms of efficiency and high price of the Permanent Magnet Synchronous Machines (PMSMs). In this study, the Finite Element Analysis (FEA) showing the effects of phase angle of current, number of flux barriers, starting diameter of flux barriers, and ribs on machine performance of 22 kW Transversally Laminated Anisotropic (TLA)-SynRM with distributed winding have been carried out in ANSYS Electronics. The design is based on creating a novel rotor considering these rotor parameters since the utilized SynRM consists of same stator with same sized 22 kW IM. The performance of the machine has been investigated through torque, torque ripple, efficiency, saliency, and power factor. Moreover, the effect of the phase angle of the current on the machine performance and the comparison of the 22 kW-SynRM with the same sized and powered IM and with a different SynRM have been carried out in this study. This study has concluded that although the novel SynRM has high torque ripple values, it is better than the IM due to lack of copper losses of rotor and the previously utilized SynRM considering their efficiency classes. The efficiency class of novel SynRM is IE4, whereas that for utilized IM and previously created SynRM are IE1 and IE3, respectively.

show abstract

Section: A Working Principle and Torque Generation Of Synrm Machinesmentioning

confidence: 99%

Design and Analysis of a Rotor for a 22 kW Transversally Laminated Anisotropic Synchronous Reluctance Motor

Ozdil

Uzun

2021

ELEKTRON ELEKTROTECH

View full text Add to dashboard Cite

show abstract

“…1. This condition can be expressed as (11) where R ciω is the outer radius of the inner cylinder at the operating speed, R coω is the inner radius of the outer cylinder at the operating speed if the two cylinders are considered as separate entities. ε θics is the circumferential strain at the outer radius of the inner cylinder generated by the shrinkage pressure, S and ε θocs is the circumferential strain at the inner radius of the outer cylinder due to S. The shrinkage pressure is the load acting between the two cylinders causing them to deform to become compatible.…”

Section: Classical Modelsmentioning

confidence: 99%

“…Substituting (12)-(15) into (10) will generate equations for ε θics and ε θocs . Then, using (11), the relationship between the shrinkage pressure and the geometry of the cylinders during rotation can be determined (see (16)) The stress at any point in either the magnets or the sleeve can then be calculated using (12)-(15).…”

Section: Classical Modelsmentioning

confidence: 99%

“…A number of authors have addressed the mechanical design. In some cases [11][12][13][14], finite-element analysis (FEA) has been used as the principal stress analysis tool. In the latter case, the rotor being designed was for a large electric machine (rotor diameter 686 mm) and was a complex assembly of parts, so there was no alternative but to use FEA.…”

Section: Introductionmentioning

confidence: 99%

“…Zhang et al [17] use a PS model to determine the stresses in a rotor assembly with a carbon fibre sleeve and state that axial strain is neglected. Other papers in this area such as [18] refer to [15] for the analytical work or in the case of [11] the theory presented in [4] is used. Yon et al [19] did not use the classical compound cylinder theory, as the magnets in their rotor were segmented and separated circumferentially by substantial layers of other material.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Mechanical design of rotors for permanent magnet high‐speed electric motors for turbocharger applications

Barrans

Al-Ani

Carter

2017

IET Electrical Systems in Transportation

View full text Add to dashboard Cite

Realization of electrically boosted turbochargers requires electric motors capable of operating at very high speeds. These motors often use a permanent magnet rotor with the magnets retained within an interference fit external sleeve. Whilst it is possible to model such systems numerically, these models are an inefficient tool for design optimization. Current analytical models of rotors typically consider the stresses induced by the shrink fit of the sleeve separately from the stresses generated by centripetal forces due to rotation. However, such an approach ignores the frictional interaction between the components in the axial direction. This paper presents an analytical model that simultaneously accounts for interaction between the magnet and outer sleeve in both the radial and axial directions at designed interference and with the assembly subjected to centripetal and thermal loads. Numerical models presented show that with only moderate coefficients of friction and rotor lengths; axial load transfer between magnet and sleeve takes place over a short distance at the ends of the assembly. The paper then demonstrates how the analytical model aids definition of a feasible set of rotor designs and selection of an optimum design.

show abstract

High speed operation of electrical machines, a review on technology, benefits and challenges

Moghaddam

2014

2014 IEEE Energy Conversion Congress and Exposition (ECCE)

View full text Add to dashboard Cite

Rotor optimization of a segmented reluctance synchronous motor utilizing genetic algorithm

Cited by 10 publications

References 5 publications

Design and Analysis of a Rotor for a 22 kW Transversally Laminated Anisotropic Synchronous Reluctance Motor

Design and Analysis of a Rotor for a 22 kW Transversally Laminated Anisotropic Synchronous Reluctance Motor

Mechanical design of rotors for permanent magnet high‐speed electric motors for turbocharger applications

High speed operation of electrical machines, a review on technology, benefits and challenges

Contact Info

Product

Resources

About