End effect braking force reduction in high-speed single-sided linear induction machine

Shiri, Abbas; Shoulaie, Abbas

doi:10.1016/j.enconman.2011.11.014

Cited by 20 publications

(13 citation statements)

References 32 publications

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“…These equations are obtained with an approach similar to [41] with some modifications. In fact, in [41], the secondary reactance is neglected due to the quite large-air-gap length, but this assumption is not applicable for low-air-gap length machines. In addition, secondary's skewed bars deteriorate this assumption.…”

Section: E Output Characteristics Calculationsmentioning

confidence: 99%

“…The third group of papers has focused on the designing of LIMs [7], [26]- [41]. Some of these papers have presented their experiences on manufacturing a specific LIM [31]- [35], and some others have discussed on the optimum design of LIMs with special objectives [7], [29], [30], [37]- [41].…”

Section: Introductionmentioning

confidence: 99%

“…Some of these papers have presented their experiences on manufacturing a specific LIM [31]- [35], and some others have discussed on the optimum design of LIMs with special objectives [7], [29], [30], [37]- [41]. The main single/multiobjective functions introduced in the literatures are winding design [29], thrust and power to weight ratio [30], efficiency and power factor [37]- [39], efficiency, power factor, end-effect factor, and motor weight [7], height to length ratio [40], and efficiency, power factor, and end-effect braking force (EEBF) [41]. However, these papers have neglected the effect of secondary leakage reactance in their analyses, which can be significant in low-air-gap machines.…”

Section: Introductionmentioning

confidence: 99%

“…Transverse edge effect would distort the distribution of induced current in the depth direction in the secondary and requires 3-D models for detailed studies. However, some works have entered the effect of this phenomenon by some analytical and empirical equations in their models [9], [16], [41], [42].…”

Section: Introductionmentioning

confidence: 99%

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Design Optimization of a Ladder Secondary Single-Sided Linear Induction Motor for Improved Performance

Ravanji

Nasiri‐Gheidari

2015

IEEE Trans. Energy Convers.

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In this paper, design and optimization of a ladder-type single-sided linear induction motor (Ladder SLIM) for machine tool applications is investigated. High-speed linear induction machines suffer from the end-effect phenomenon, which can reduce the thrust and result in declined output characteristics. Although it is common to consider this phenomenon in high-speed applications, it is essential to take it into account in the design and analysis of low-speed low-air-gap linear machines. In addition, Ladder SLIMs have significant flux density ripples, and using skewed bars for secondary of the machine is a common solution for it. Therefore, providing required equations, an algorithm for designing a Ladder SLIM considering the end-effect phenomenon based on Duncan model is proposed, and effect of several design parameters on the output characteristics are analyzed. In order to find the optimum design parameters, a multiobjective optimization problem considering efficiency, power factor, and braking force due to the end effect is defined. This problem is optimized with two algorithms, interior point and genetic algorithms, and results are compared. Finally, the validity of the obtained solution is verified using a 2-D and 3-D time-stepping finite-element method. Index Terms-End-effect braking force (EEBF), genetic algorithm (GA), interior point algorithm (IPA), ladder-type single-sided linear induction motor (Ladder SLIM), multivariable multiobjective (MVMO) optimization, time-stepping finiteelement method (TSFEM). 0885-8969 . Her research interests include design, optimization, and performance analysis of electrical machines and electromagnetic sensors.

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Section: E Output Characteristics Calculationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Design Optimization of a Ladder Secondary Single-Sided Linear Induction Motor for Improved Performance

Ravanji

Nasiri‐Gheidari

2015

IEEE Trans. Energy Convers.

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“…Also, from the review of the existing literature studies, it can be recognised that only some of the studies focused towards the optimisation of SLIM. Optimization techniques namely, GA [23], [24],PSO [25],cuckoo search algorithm [26], backtracking search algorithm [27], etc., are being used in many studies in order to enhance the performance of IM drives, in particular, its control systems [28]- [30]. In [31], GA was applied to improve the fuzzy-phase plane controller for speed tracking/ ideal position control in IM.…”

Section: Introductionmentioning

confidence: 99%

Optimal design selection and analysis of single sided linear induction motor

Issac¹,

Poorani²

2018

IJET

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This paper investigates the design and implementation of single-sided linear induction motor towards determining the end effect intensity, reduces the primary weight of the system and improves the efficiency by multi-objective optimisation approach. This optimisation technique is a combination of genetic with cuckoo search (GCS) algorithm is introduced to improvise the efficiency and power factor, as well as to minimize the end effect intensity, simultaneously. The performance of the designed novel approach will be validated based on the measure of different parameters such as Efficiency, Power factor, Maximum thrust slip, Aluminum thickness, Primary width/pole pitch, Primary current density and the braking force due to the end effect. Finally, to validate the optimisation results, 3D finite element method is employed and compared the results with the existing technique like GA, PSO, and Cuckoo search.

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Design and optimization of air‐cored double‐sided linear permanent magnet generators for wave energy conversion

Niknafs

Shiri

Bagheri

2022

Energy Science & Engineering

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Recently, linear generators have been widely employed to convert oceanic wave energy into electricity. Among various linear generators, linear permanent magnet generators (LPMGs) have gained attention due to their special characteristics such as high power density and simple control structure. In this paper, flat double-sided LPMG is investigated and designed.Considering all effective design variables, a particle swarm optimization algorithm-based optimization method is employed to maximize efficiency and minimize weight. The optimization results show an increase in efficiency and a reduction in the weight of the generator. Finally, the design results are evaluated and validated using magnetic equivalent circuit and finite element analysis methods.

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End effect braking force reduction in high-speed single-sided linear induction machine

Cited by 20 publications

References 32 publications

Design Optimization of a Ladder Secondary Single-Sided Linear Induction Motor for Improved Performance

Design Optimization of a Ladder Secondary Single-Sided Linear Induction Motor for Improved Performance

Optimal design selection and analysis of single sided linear induction motor

Design and optimization of air‐cored double‐sided linear permanent magnet generators for wave energy conversion

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