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Content available remote Comparison of the results of simulation modeling of an asynchronous electric motor with the calculated electrodynamic and energy characteristics
100%
Gubarevych O. , Golubieva S. , Melkonova I.
Przegląd Elektrotechniczny
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2022
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tom R. 98, nr 10
61--66
EN
The paper presents the results of a comparison of the electrodynamic and energy characteristics and parameters of an asynchronous motor, obtained by simulation and calculated by the classical method. The mathematical model in the MATLab software environment is used for research. The research results are relevant when choosing and using the proposed simulation model of three-phase squirrel-cage asynchronous motors for further research, including the effect of various engine defects on its performance.
XX
W artykule przedstawiono wyniki porównania charakterystyk i parametrów elektrodynamicznych i energetycznych silnika asynchronicznego, uzyskanych metodą symulacji i obliczonych metodą klasyczną. Do badań wykorzystano model matematyczny wykonany w środowisku oprogramowania MATLab. Wyniki prac mają istotne znaczenie dla wyboru i wykorzystania zaproponowanego modelu symulacyjnego asynchronicznego silnika elektrycznego z wirnikiem klatkowym do dalszych badań, w tym wpływu różnego rodzaju uszkodzeń silnika na jego pracę.
2
Content available Structural diagram of the built-in diagnostic system for electric drives of vehicles
100%
Gubarevych O. , Goolak S. , Melkonova I. , Yurchenko M.
Diagnostyka
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2022
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tom Vol. 23, No. 4
art. no. 2022406
EN
Currently, in transport systems, as part of the main and auxiliary equipment, a large number of induction motors with a squirrel-cage rotor of different capacities are used. Their wide application in the transport industry is associated with the main advantages over other types of machines – a fairly high reliability, low cost and ease of maintenance. However, during the operation of these motors, a number of malfunctions can occur that affect the deterioration of the performance of the entire drive, the accuracy of its functions, or accelerate an emergency stop. To ensure proper control of the technical condition of electric motors, modern diagnostic systems are required that operate in real-time and operational loading mode with the transmission of data on the instantaneous state of the main control elements. The paper proposes a block diagram of the diagnostic built-in system and developed a modular unit for it to set the type and degree of the most complex damage - inter-turn short circuit in the stator winding.
3
Content available Analysis of the features of application of vibration diagnostic methods of induction motors of transportation infrastructure using mathematical modeling
88%
Gubarevych O. , Gerlici J. , Gorobchenko O. , Kravchenko K. , Zaika D.
Diagnostyka
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2023
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tom Vol. 24, No. 1
art. no. 2023111
EN
In the work, studies were carried out on the use of vibration diagnostic methods for monitoring the state of induction motors with a squirrel-cage rotor, operated in electric drives of transport equipment. The most common and difficult-todiagnose damage to an induction motor is turn-to-turn short circuits in the stator winding, which require timely determination and establishment of the degree of damage to prevent an emergency shutdown of the equipment. The main purpose of the study is to establish the most effective areas of application of vibration diagnostic methods in determining the technical condition of the stator of induction motors under load. The experiments were carried out using simulation modeling for cases of turn-to-turn short circuits in one and two phases simultaneously, as well as with the influence of a low-quality supply voltage system on vibration parameters. The results of the work are relevant for further improvement of systems for diagnostic control of drives of transport equipment to increase the efficiency and reliability of their work.
4
Content available remote Investigation of the influence of the quality of the power supply system on the characteristics of an asynchronous motor with a squirrel-cage rotor
88%
Goolak S. , Gubarevych O. , Gorobchenko O. , Nevedrov O. , Kamchatna-Stepanova K.
Przegląd Elektrotechniczny
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2022
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tom R. 98, nr 6
142--148
EN
The paper presents the results of studies of the influence of the quality of power systems on the characteristics of an asynchronous electric motor with a squirrel-cage rotor. During the research, a mathematical model of an induction motor, made in the MATLab software environment, was used. Based on the simulation results, the coefficients of the torque ripple and the phase current unbalance were determined. The results obtained are compared with previous studies of the manifestation of turn-to-turn closures in the phases of the motor stator winding, which also create an asymmetry of the rotating magnetic field.
PL
W artykule przedstawiono wyniki badań wpływu jakości układów zasilających na charakterystyki silnika indukcyjnego ze zwartym wirnikiem. W badaniach wykorzystano model matematyczny silnika indukcyjnego wykonany w środowisku oprogramowania MATLab. Otrzymane wyniki porównuje się z wcześniejszymi badaniami występowania obwodów międzyzwojowych w fazach uzwojenia stojana silnika, które również tworzą asymetrię wirującego pola magnetycznego.
5
Content available Synthesis of the structural diagram with algorithms of the units of the on-board diagnostic system of induction motors of vehicles
88%
Gubarevych O. , Melkonova I. , Melkonov H. , Melnyk O. , Miroshnykova M.
Diagnostyka
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2024
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tom Vol. 25, No. 1
art. no. 2024109
EN
In this comprehensive study, the concept and structural diagram of the system for diagnostics of induction electric motors of vehicles with the development of algorithms for the operation of modular units for monitoring the state of the main structural elements are proposed. During the development of the diagnostic system, the peculiarities of the construction of diagnostic systems of rotating electric machines were investigated in the real conditions of their operation, and modern methods of current and vibration diagnostics were implemented. The work algorithms of each module are presented in the functional diagram of the general diagnostic system of and cover important defects of induction motors. The diagnostic system combines methods that use different diagnostic principles and criteria and are adapted for use in an embedded diagnostic system. The developed functional diagram of the diagnostic system can be used for practical implementation in physical form. The use of the proposed diagnostic system will make it possible to obtain continuous information about the state of both electrical and mechanical components of the induction motor when operating under load with a poor-quality power system in real operating conditions.
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