Pole-changing motor for lift installation

Bobojanov, Makhsud; Rismuxamedov, Dauletbek; Tuychiev, Furkat; Shamsutdinov, Khusniddin; Magdiev, Khayotullo

doi:10.1051/e3sconf/202021601164

Cited by 17 publications

(12 citation statements)

References 9 publications

(8 reference statements)

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“…To build the PCHW, Professor H.G. Karimov proposed the method of "Discretely-given spatial functions" [10], which was improved in the works of M.K.Bobojanov, D.A. Rismukhamedov and F.N.…”

Section: Methodsmentioning

confidence: 99%

Development of new pole-changing winding for lifting and transport mechanisms

et al. 2023

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In many industries, lifting and transport machines are used, particularly cranes, conveyors, and hoists. Taking into account their wide prevalence and large installed capacity, as well as the complexity of the operating mode, special attention is paid to the creation of new energy- and resource-saving electric drives that facilitate the start-up process and ensure accurate stopping of highly inertial lifting and transport mechanisms. In this direction, one of the priority tasks is the development of two-speed pole-changing motors that meet the requirements of the electric drive of lifting and transport mechanisms. Based on the method of "Discretely-given spatial functions", a pole-changing winding was obtained for a ratio of 1/5 poles at 30 slots of the stator. Analysis of the electromagnetic properties of the developed pole-changing winding showed that, compared with a close analog, the differential scattering coefficient on the p=1 side of the pole decreases from 1.7% to 1.3%, and on the p=5 side of the pole decreases from 15.9% to 9.7%, and also in the picture of the magnetomotive force, the presence of higher harmonic ones on the side of the first velocity decreases up to 6%, and from the second speed up to 20%.

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“…To build the PCHW, Professor H.G. Karimov proposed the method of "Discretely-given spatial functions" [10], which was improved in the works of M.K.Bobojanov, D.A. Rismukhamedov and F.N.…”

Section: Methodsmentioning

confidence: 99%

Development of new pole-changing winding for lifting and transport mechanisms

et al. 2023

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“…The development of pole-changing windings in pole ratios p 1 /p 2 =3/6 based on basic circuits (BS) is peculiar, the use of asynchronous motors with a basic circuit of the type "Y/YY with additional branches" and "Y-Δ/YY" is appropriate. Including, on the drives of the undercarriage of mine self-propelled cars, when obtaining PCW based on schemes like "Y/YY with additional branches" and "Y-Δ/YY", one has to synthesize a suitable one for one of the pluses of the DSSF [15].…”

Section: Pole Changing Winding Methodsmentioning

confidence: 99%

Development of two-speed asynchronous electric motors for the undercarriage of mine self-propelled cars

Tuychiev

Haqberdiev

2023

E3S Web of Conf.

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The paper presents a new double layer three phase 3/6 pole-changing winding, with 72 slots and 6 terminals with “Y/YY with additional branches” ? “Y-Δ/YY” switching circuit. Using the discretely specified spatial function method, a two-speed asynchronous electric motor with a pole-switched winding was designed for self-propelled mine wagons, which were tested in static and dynamic modes of operation. The application areas of two-speed asynchronous motors with pole-switched windings are given. Currently, dynamic modes have not been investigated in the used two-speed engines. As the object of the study, a two-speed asynchronous motor of the AVTM - 6/12 brand of the self-propelled mine wagons drive was adopted in operating modes with no load on the shaft and when starting with a load of 500 Nm and switching to a second speed.

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“…The basis of the method is a method in which two windings of normal design are taken (one of them is original, the other is typical) with a given number of poles (2p 1 , 2p 2 ) and phases (m 1 , m 2 ) and are simultaneously used in the process of constructing a pole-changing winding, according to the principle approximation of the current distribution and the pattern of the magnetomotive forces of the synthesized winding to the current distribution and the picture of the magnetomotive forces of a typical winding, where each layer of conductors distributed over the grooves with conditional currents is replaced by a discrete element of the winding [4]. A discretely given spatial function of a conventional winding is the state of the conductor and is assigned to the coil side with one conditional conductor, through which a single current of one direction or another flows in a slot belonging to one of the phases and designated identically with this phase [5].…”

Section: The Current State Of the Investigated Problemmentioning

confidence: 99%

New pole-changing winding for electric drive of ball mills

et al. 2023

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The article substantiates the expediency of using a controlled electric motor in grinding mechanisms in electric drives instead of an unregulated asynchronous motor. The problem of facilitating the start-up of ball mills and ensuring accurate stop of the neck of ball mills using the lowest speed is considered. As the review of the literature showed, speed control in electric drives using two-speed motors is a simple, cheap and reliable option. In many existing two-speed motors, two independent windings are placed in the stator slots; for this reason, the motor magnetic circuit is not effectively used, in turn, the use of one pole-changing winding improves the energy performance of the motor and saves winding copper and insulating materials. Based on the analysis of the operating modes of grinding mechanisms, in terms of facilitating start-up and resource saving (increase the operating time of the engine itself), the expediency of creating a two-speed motor with a pole-changing winding with a pole ratio of 2:5 and improving existing electric drive systems with its use is substantiated.

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Pole-changing motor for lift installation

Cited by 17 publications

References 9 publications

Development of new pole-changing winding for lifting and transport mechanisms

Development of new pole-changing winding for lifting and transport mechanisms

Development of two-speed asynchronous electric motors for the undercarriage of mine self-propelled cars

New pole-changing winding for electric drive of ball mills

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