Low-speed induction motors for directly driven elevator machines

Kruglikov, O. V.

doi:10.3103/s1068371215030050

Cited by 12 publications

(2 citation statements)

References 4 publications

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“…Among related studies aimed at improving the efficiency of pilgering mills, it is possible to note the work, based on the decrease of the rate of the rectified EMF thyristor converter due to the automatic correction of the EMF of the motor when reducing the consumption of reactive power because of the main voltage deviation [3]. The object in this case was made by the broadband hot rolling mill.…”

Section: Statement Of Energy Saving Problemmentioning

confidence: 99%

Energy efficiency improvement of electric drive of cold pilgering mill

Sychev

Savosteenko

Gryzlov

2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Different ways to improve the energy efficiency of electric drives of cold pilgering mill are considered. Mathematical modeling methods represent studies according to which it is possible to evaluate quantitatively the energy savings. For example, cold pilgering mill 450 shows the mean square of the armature current of the main drive motor related to critical frequency of the speed loop. The possibility of energy saving by previous field weakening of the motor before the operating cycle of rolling is considered. The optimal energy saving points of supply and termination of the pulse are determined by the field weakening. The correlation of the parameters of the dynamic units and the change of the electric drive work schedule provides the greatest loss reduction in the main drive of the cold pilgering mill stand based on the conditions. Activities aimed at improving energy efficiency of electric drives of mills of this group are reviewed, which reduces the electric energy consumption for the cycle rolling by 20-25 %.

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Section: Statement Of Energy Saving Problemmentioning

confidence: 99%

Energy efficiency improvement of electric drive of cold pilgering mill

Sychev

Savosteenko

Gryzlov

2017

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Different types of electric motors are used for traction in elevator systems. These can be listed as induction motors, permanent magnet synchronous motors, linear motors or reluctance motors [8][9][10][11][12]. Passenger comfort, motor efficiency and production costs are the main optimization parameters for the selection and design of these motors [13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Kayış Tahrikli Asansör Çekiş Makinesinin Tasarımı ve Üretimi: Çift Taraflı Kayış Sisteminin Modellenmesi

Soyaslan

Avsar

Fenercioğlu

et al. 2023

Journal of Polytechnic

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Elevator traction motors are critical components of elevator systems. After the structural analysis of the traction motor, it is necessary to proceed to the production processes for the comfortable and safe use of elevator systems. In this study, the static load values for bearing lifetime calculation, belt selection, and finite element analyses (FEA) were determined. According to calculated loads; materials, bearings, belt, pulley, brake, and encoder were selected. In order to obtain a design in accordance with elevator standards, motor parts were examined for structural analysis. Finite element analyses were carried out according to the determined maximum static load values, and a new belt elevator traction motor design that provides the safety coefficients has emerged. When the FEA analysis results of bending moments are examined; the maximum Von Mises stress acting on the motor frame and shaft was obtained 17.1 MPa and 27.62 MPa respectively. The maximum Von Mises stress was obtained under the torsional moment as 71.4 MPa and the shaft is 6.1 times safe against a torsional moment. This value is the minimum safety factor of the designed system and safety factors of bending moments are higher than this value. The designed elevator machine has got 12.9 kW rated power, 1.6 m/s cabin speed, and 1175 kg carrying capacity. The advantage of the proposed design is to eliminate the casting process with modular structure via double side belt system. The prototype of the designed motor was produced and it was observed that the motor provided the desired constraints as a result of the loading experiments.

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Synthesis of energy-efficient agriculture electric drives control system

Bukhanov

Gryzlov

Григорьев

2019

IOP Conf. Ser.: Earth Environ. Sci.

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In this paper the capabilities of the agriculture electric drive with rectangular shape of the phase current were analyzed, the level of pulsations of the electromagnetic torque in synchronous reluctance electric drives was found, the synthesis of the electric drive control system was considered, the characteristics of the electric drive under different control laws were compared. It is found that the use of high-speed current circuits (cutoff frequency = > 200 rad/s) can significantly suppress the level of pulsations of the electromagnetic torque. It is shown that the use of flexible positive current feedback in switching phase currents can be considered as an additional opportunity to improve the performance of the current control circuit, as well as in conjunction with the previous method for suppressing torque pulsations in both static and dynamic modes.

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Low-speed induction motors for directly driven elevator machines

Cited by 12 publications

References 4 publications

Energy efficiency improvement of electric drive of cold pilgering mill

Energy efficiency improvement of electric drive of cold pilgering mill

Kayış Tahrikli Asansör Çekiş Makinesinin Tasarımı ve Üretimi: Çift Taraflı Kayış Sisteminin Modellenmesi

Synthesis of energy-efficient agriculture electric drives control system

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