Dynamic study of thermal characteristics of linear induction motors

Сарапулов, Ф. Н.; Frizen, Vasiliy E.; Smolyanov, Ivan; Shmakov, Evgeniy I.

doi:10.1109/elma.2017.7955475

Cited by 11 publications

(5 citation statements)

References 9 publications

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“…The problem of overheating of the load motor is solved by transferring the frequency converter to the direct torque control mode. At the same time, a significant decrease in the motor current and poor stabilization of the temperature regime were detected [5,6].…”

Section: Introductionmentioning

confidence: 92%

“…The digital regulator built into the computer (1) generates a control signal in digital form, fed to the digital-to-analog converter (2), and converted into a control signal of the frequency converter (3) in in the form of a unified current signal 4 ... 20 mA. The frequency converter forms the load torque on the shaft of the electric motor (5), rigidly connected to the torque sensor (6) and the tested motor (4). The measured torque on the motor shaft is transmitted to the computer and to the input of the digital controller.…”

Section: Digital Controller Applicationmentioning

confidence: 99%

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The use of a digital controller in the loading system of the test bench to improve the accuracy of simulating the modes of oil pumping units

et al. 2020

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Modern trends in the development of technologies are based on the need to conduct experimental studies of the developed equipment in laboratory conditions with the maximum approximation of operating modes to real ones. Such studies are impossible without the development of specialized stands with test automation systems. In modern test equipment systems, devices are often used to create a mechanical load on the shaft of the electric motor under study. As such a device, a system of frequency converter load asynchronous electric motor has been proposed and implemented, which has been tested at the test bench and has proven itself from the best side in comparison with traditional circuits using DC motors.

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Section: Introductionmentioning

confidence: 92%

Section: Digital Controller Applicationmentioning

confidence: 99%

The use of a digital controller in the loading system of the test bench to improve the accuracy of simulating the modes of oil pumping units

et al. 2020

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“…To increase the efficiency, you can increase the rated current, but the negative effect of increasing the rated current for the prototype motor, first of all, is that it is necessary to make significant adjustments to the design of the frequency converter, which cannot provide the formation of such currents. Secondly, it will be necessary to change the winding data in the direction of increasing the cross-section of the phase conductors based on an updated thermal calculation [6,7].…”

Section: Theoretical Aspectsmentioning

confidence: 99%

Changing the design of a synchronous motor after testing

et al. 2020

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In the course of work on the project, we have created a permanent magnet synchronous motor, which will be effectively used in the oil industry, or rather 2 models: 15and 55-kW motors. After the tests carried out, the problem with the achievement of the specified value of the efficiency of the engines was clarified, and it was necessary to solve this problem without significantly changing the design. One of the solutions is presented in the article.

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“…) as compared to heating in gas furnace has the following advantages: high speed of heating, small dimensions of a plant, almost inertia-free induction heating, possibility of full heating process automation, etc (Rudnev, 2003). Besides, induction heating (against a gas heating) gives an opportunity to cut production areas down, improve working conditions and quality of an end product (Sarapulov et al, 2017;Smolyanov et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Search optimal control of induction heating modes for a moving workpiece

Smolyanov

Tarasov

2020

COMPEL

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Purpose This paper aims to create mathematical models and control algorithms allowing the authors to study and form effective modes of operation of multi-inductor system of electrical heating of moving hollow cylindrical blanks. Design/methodology/approach The developed mathematical models were based on the finite-difference method, the control volume method and their combination. The reliability of the results obtained was verified by comparing the calculated results with the experimental ones. The temperature control system was synthesized using methods of the object management theory with distributed parameters. Findings A set of mathematical instruments has been created that allow modelling the operation modes of installation for induction heating of moving hollow cylindrical blanks. Recommendations were given on the formation of an automatic control system that provides heating of a moving hollow cylindrical billet to the required temperature with simultaneous equalization of temperature along the length of the billet in case of highly uneven initial temperature along the length of the billet. Practical implications Part of the paper will be used by the industrial plant for the purpose of heat treatment of iron alloys workpiece. Particularly, a control system will be basically formed based on the models. Originality/value The scientific novelty of the paper is to create control algorithms and mathematical models for the induction heating system of tubular workpieces allowing to explore interrelated electromagnetic and thermal processes taking into account nonlinearities and design features of the system, as well as to form effective modes of its operation based on transfer functions and methods of the object management theory with distributed parameters.

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Dynamic study of thermal characteristics of linear induction motors

Cited by 11 publications

References 9 publications

The use of a digital controller in the loading system of the test bench to improve the accuracy of simulating the modes of oil pumping units

The use of a digital controller in the loading system of the test bench to improve the accuracy of simulating the modes of oil pumping units

Changing the design of a synchronous motor after testing

Search optimal control of induction heating modes for a moving workpiece

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