Calculation of linear induction motor features by detailed equivalent circuit method taking into account non-linear electromagnetic and thermal properties

Smolyanov, Ivan; Сарапулов, Ф. Н.; Tarasov, F. E.

doi:10.1016/j.camwa.2019.05.015

Cited by 9 publications

(7 citation statements)

References 20 publications

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“…So, the stator and rotor structures can be designed by LIM design theory. [22][23][24] In order to reduce the magnetoresistance, eddy current loss and hysteresis loss, the stators adopt the form of silicon steel sheet lamination. In addition, the structure of rotor is a composite rotor composed of copper layer and steel layer.…”

Section: Design and Analysis Of Simmentioning

confidence: 99%

“…According to the design point and its relevant data obtained in Table 6, the approximate fitting of objective function (output torque T and output torque fluctuation DT) and constrained boundary function (moment of inertia J and quality factor G) are obtained based on RSA second-order polynomial surrogate model. The function fitting expression is as listed as following formulas (24) to ( 27)…”

Section: Establishment Of Surrogate Modelmentioning

confidence: 99%

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Design, control and optimization of multi-degree-of-freedom spherical induction motor

Liu

Deng

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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In order to meet the requirements of multi-degree-of-freedom (multi-DOF) driving units for omnidirectional vehicle wheels, a multi-DOF spherical induction motor (SIM) is proposed with composite rotor through the conversion of design concept of linear induction motor (LIM), which compensates for the insufficiency of traditional multi-DOF driving scheme with structural complexity, control difficulties and poor dynamic performance. The SIM realizes two DOF driving and has the characteristics of direct output on rotor surface. Firstly, the overall design of SIM is drafted, as well as finite element model and control system are established. Subsequently, in order to optimize SIM performance, the multi-objective optimization design of composite rotor structure is proposed by adopting non-dominated sorting genetic algorithm-II (NSGA-II). The results show that the reasonable design of rotor structure can effectively improve output torque and reduce fluctuation. And the proposed design idea based on theory of LIM can provide a reference for SIM design.

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Section: Design and Analysis Of Simmentioning

confidence: 99%

Section: Establishment Of Surrogate Modelmentioning

confidence: 99%

Design, control and optimization of multi-degree-of-freedom spherical induction motor

Liu

Deng

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…At this stage, the adjusted calculation of technical, energy and economic indicators of LIM is carried out using CAD systems based on 2-D and 3-D models of machine design and its physical fields. Models and calculation methods based on them are also used [8,[10][11][12][13][14][15].…”

Section: State Of the Theory Designing And Modeling Of Limmentioning

confidence: 99%

Linear induction motors for non-ferrous metallurgy

Курилин¹,

Дли²,

Sokolov³

2021

nfm

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Application of linear induction motors (LIM) on enterprises of non-ferrous metallurgy involves accomplishing specific engineering and economic tasks of building a power unit of electric drive, engineering, modeling, designing, as well as technical and economic assessing of electric drive indicators. The paper presents an overview and analytical information on these issues, which allows industry specialists to perform a feasibility study of LIM usage. The prospects of LIM application in electric drives of processing and auxiliary equipment of non-ferrous metallurgy sub-sectors are justified and respective examples are given. The designing tasks of layout synthesis and calculation of the output characteristics with corresponding modeling aids are classified. It is established that there are no methods and means of solving both problems currently prevalent and accepted by professional community. Low operating rate of an electric drive and edge effects reduce energy data of LIM. At the same time, electric drives based on LIM or rotary motion electric motors are competitive variants of a linear electric drive. A mathematical model for layout synthesis of LIM is suggested. The model includes the means of forecasting estimation of electromagnetic, technical, weight-size and dynamic parameters of the object. On this basis, the main magnetic field of LIM was calculated. The LIM service life model calculation is implemented, what has allowed to evaluate cost-effectiveness of LIM application. It is established that in certain situations the use of a linear electric drive with LIM is advisable and cost-effective. The question of expediency of LIM usage in each concrete case should be settled based on a feasibility study.

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“…Separate studies have been performed to analyze mechanical oscillation, current circuit permeability [37], current upper limit, and control parameters in a linear motor supply system [15] but have only been defined by feedback errors without detailed analysis of traction harmonics and displacement oscillations. Such studies were performed by Yang et al [16], where the dependences between air gap fluctuations and the harmonic error is displacement fluctuation were defined.…”

Section: Introductionmentioning

confidence: 99%

Investigation of X and Y Configuration Modal and Dynamic Response to Velocity Excitation of the Nanometer Resolution Linear Servo Motor Stage with Quasi-Industrial Guiding System in Quasi-Stable State

et al. 2021

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Research institutions and industrial enterprises demand high accuracy and precision positioning systems to fulfil cutting edge requirements of up-to-date technological processes in the field of metrology and optical fabrication. Linear motor system design with high performance mechanical guiding system and optical encoder ensures nanometer scale precision and constant static error, which can be calibrated by optical instruments. Mechanical guiding systems has its benefits in case of control theory and its stability; unfortunately, on the other hand, there exists high influence of structure geometry and tribological effects such as friction and modal response. The aforementioned effect cannot be straightforwardly identified during the assembly process. Degradation of dynamic units can be detected only after certain operating time. Single degree of freedom systems are well investigated and the effect of degradation can be predicted, but there exists a gap in the analysis of nanometer scale multi degree of freedom dynamic systems; therefore, novel diagnostic tools need to be proposed. In this particular paper, dual axes dynamic system analysis will be presented. The main idea is to decouple standard stacked XY stage and analyse X and Y configuration as two different configurations of the same object, while imitators of corresponding axes are absolutely solid and stationary. As storage and analysis of time domain data is not efficient, main attention will be concentrated on frequency domain data, while, of course, statistical and graphical representation of dynamic response will be presented. Transfer function, dynamic response, spectral analysis of dynamic response, and modal analysis will be presented and discussed. Based on the collected data and its analysis, comparison of X and Y responses to different velocity excitation will be presented. Finally, conclusions and recommendations of novel diagnostic way will be presented.

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Calculation of linear induction motor features by detailed equivalent circuit method taking into account non-linear electromagnetic and thermal properties

Cited by 9 publications

References 20 publications

Design, control and optimization of multi-degree-of-freedom spherical induction motor

Design, control and optimization of multi-degree-of-freedom spherical induction motor

Linear induction motors for non-ferrous metallurgy

Investigation of X and Y Configuration Modal and Dynamic Response to Velocity Excitation of the Nanometer Resolution Linear Servo Motor Stage with Quasi-Industrial Guiding System in Quasi-Stable State

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