| Issue |
E3S Web Conf.
Volume 383, 2023
International Scientific Conference Transport Technologies in the 21st Century (TT21C-2023) “Actual Problems of Decarbonization of Transport and Power Engineering: Ways of Their Innovative Solution”
|
|
|---|---|---|
| Article Number | 01029 | |
| Number of page(s) | 9 | |
| Section | A Low-Emission Railway | |
| DOI | https://doi.org/10.1051/e3sconf/202338301029 | |
| Published online | 24 April 2023 | |
Development of contactless switching devices for asynchronous machines in order to save energy and resources
1
Tashkent State Technical University, Street University, 2A, 100095 Tashkent, Uzbekistan
2
Institute of Energy Problems of the Academy of Sciences of the Republic of Uzbekistan, Str. Y.Gulyamov, 70, 100047, Tashkent Uzbekistan
3
Jizzakh Polytechnic Institute, avenue Islam Karimov (former Khalklar dustligi), 4, 130100 Jizzakh, Uzbekistan
4
Tashkent State Pedagogical University, Bunyodkor avenue, 27, 100070 Tashkent, Uzbekistan
5
Institute of General and Inorganic Chemistry of the Academy of Sciences of the Republic of Uzbekistan, avenue Mirzo Ulugbek, 77A, 100071 Tashkent, Uzbekistan
6
National Research University TIIAME, st. Kori Niyazov, house 39, 100000 Tashkent, Uzbekistan
* Corresponding author: sapaevibrokhim@gmail.com
To limit the inrush currents in the stator windings, various schemes for starting an asynchronous electric motor are used. In addition, the existing devices have a complex control system, which creates certain difficulties in installation and operation. But the analysis of scientific literature and materials from certain sources testifies to the insufficient study of this problem. In scientific work, the advantages and disadvantages of a new type of contactless starter are compared with contact and non-contact starters of various types. An original circuit of a new type of thyristor starter with a simplified design has been developed and manufactured, which has the ability to smoothly start and control the power consumption of asynchronous machines. Computer simulation of a new type of contactless starter with pulse-width modulation control in the Matlab Simulink program has been carried out: a pulse current is supplied to the controlled thyristor electrode on the basis of the pulse-width modulation control and the thyristor opens and passes the current, the resistance is set to decrease the input signal level. The design of the proposed starter is based on the combination of a thyristor starter with logical control, which has the ability to smoothly start and remote control of the power consumption of asynchronous electric motors, which has the ability to save energy and resources. Modern methods of implementing a logical control system, a pulse current generator with RLC filters, are proposed, and the task of remote monitoring and control of power consumption of asynchronouselectricmotors is set.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).
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