Combined Vector and Direct Thrust Control of Linear Induction Motors With End Effect Compensation

Karimi, Hossein; Vaez‐Zadeh, Sadegh; Salmasi, Farzad Rajaei

doi:10.1109/tec.2015.2479251

Cited by 92 publications

(36 citation statements)

References 32 publications

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“…The control has also been used to compensate the influence of the end effect [35], [36]. A combined vector and direct thrust control is proposed in [38]. The experiments show that the proposed control can operate a LIM smoother than the direct thrust control, and the dynamic performance of the conventional vector control is improved with the new solution.…”

Section: Linear Induction Machinesmentioning

confidence: 99%

Linear Machines for Long Stroke Applications—A Review

et al. 2020

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This document reviews the current state of the art in the linear machine technology. First, the recent advancements in linear induction, switched reluctance and permanent magnet machines are presented. The ladder slit secondary configuration is identified as an interesting configuration for linear induction machines. In the case of switched reluctance machines, the mutually-coupled configuration has been found to equate the thrust capability of conventional permanent magnet machines. The capabilities of the so called linear primary permanent magnet, viz. switched-flux, flux-reversal, doubly-salient and vernier machines are presented afterwards. A guide of different options to enhance several characteristics of linear machines is also listed. A qualitative comparison of the capabilities of linear primary permanent magnet machines is given later, where linear vernier and switched-flux machines are identified as the most interesting configurations for long stroke applications. In order to demonstrate the validity of the presented comparison, three machines are selected from the literature, and their capabilities are compared under the same conditions to a conventional linear permanent magnet machine. It is found that the flux-reversal machines suffer from a very poor power factor, whereas the thrust capability of both vernier and switched-flux machines is confirmed. However, the overload capability of these machines is found to be substantially lower than the one from the conventional machine. Finally, some different research topics are identified and suggested for each type of machine.

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Section: Linear Induction Machinesmentioning

confidence: 99%

Linear Machines for Long Stroke Applications—A Review

et al. 2020

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“…So, LIM model of indirect vector control [3][4] is expressed as follows F is the electromagnetic thrust; r T is the secondary time constant; P is the number of pole-pairs; h is the pole pitch; v is the mover speed of LIM.…”

Section: Model Of Lim Considering End Effectmentioning

confidence: 99%

“…LIM is a kind of driving device with excellent performance, which does not need the intermediate transmission device and produce linear motion thrust directly compared with the rotary induction motor [1][2][3], which has been widely used in industrial machine, transportation, military and other fields. However, the parameters of LIM are time-varying and uncertain 0.…”

Section: Introductionmentioning

confidence: 99%

Adaptive Nonlinear Control for Linear Induction Motor Based on Q-Axis Current Compensation

Huang¹,

Xu²,

Yan³

et al. 2017

Proceedings of the 2017 International Conference on Manufacturing Engineering and Intelligent Materials (ICMEIM 2017)

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Abstract. The aim of paper is to propose position control of linear induction motor (LIM) taking into account the end effect, external force disturbance and the uncertainties of LIM model by use of an adaptive command-filtered back stepping controller based on q-axis current compensation to improve the dynamic performance and robustness of controlled system. Two simulation cases are carried out to demonstrate the possibility and effectiveness of proposed controller.

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“…A multi-air gap LSPMM for aeronautical applications is designed and optimized for improved force output performance in [10]. Force ripple reduction can also be realized by characteristic linearization [12][13][14] and advanced force control methods [15][16][17][18]. However, the linearization schemes or control strategies for a single mover-based LM cannot provide a sufficient amount of force and the force ripples are hard to maintain at a precise level, especially during a change of movement direction.…”

Section: Introductionmentioning

confidence: 99%

Complimentary Force Allocation Control for a Dual-Mover Linear Switched Reluctance Machine

et al. 2017

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This paper inspects the complementary force allocation control schemes for an integrated, dual-mover linear switched reluctance machine (LSRM). The performance of the total force is realized by the coordination of the two movers. First, the structure and characteristics of the LSRM are investigated. Then, a complimentary force allocation control scheme for the two movers is proposed. Next, three force allocation methods-constant proportion, constant proportion with a saturation interval and error compensation, and the variable proportion allocation strategies-are proposed and analyzed, respectively. Experimental results demonstrate that the complimentary force interaction between the two movers can effectively reduce the total amount of force ripples from each method. The results under the variable proportion method also show that dynamic error values falling into 0.044 mm and −0.04 mm under the unit ramp force reference can be achieved. With the sinusoidal force reference with an amplitude of 60 N and a frequency of 0.5 Hz, a dynamic force control precision of 0.062 N and 0.091 N can also be obtained.

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Combined Vector and Direct Thrust Control of Linear Induction Motors With End Effect Compensation

Cited by 92 publications

References 32 publications

Linear Machines for Long Stroke Applications—A Review

Linear Machines for Long Stroke Applications—A Review

Adaptive Nonlinear Control for Linear Induction Motor Based on Q-Axis Current Compensation

Complimentary Force Allocation Control for a Dual-Mover Linear Switched Reluctance Machine

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