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Добірка наукової літератури з теми "Тяговий асинхронний електропривод"
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Статті в журналах з теми "Тяговий асинхронний електропривод"
Плахтій, Олександр Андрійович, Володимир Павлович Нерубацький, Дмитро Андрійович Шелест та Владислав Романович Цибульник. "Дослідження впливу скін-ефекту на втрати потужності в системах тягового електропостачання постійного струму". Інформаційно-керуючі системи на залізничному транспорті 26, № 4 (14 грудня 2021): 3–14. http://dx.doi.org/10.18664/ikszt.v26i4.247224.
Повний текст джерелаNoskov, Valentin, Vasyl Blyndiuk, Volodymyr Skorodielov та Hennadii Heiko. "ПЕРЕВІРКА І НАЛАШТУВАННЯ ПАРАМЕТРІВ ТЯГОВОГО ЕЛЕКТРОПРИВОДУ У СТАЦІОНАРНИХ РЕЖИМАХ". Системи управління, навігації та зв’язку. Збірник наукових праць 3, № 65 (3 вересня 2021): 56–59. http://dx.doi.org/10.26906/sunz.2021.3.056.
Повний текст джерелаNoskov, Valentin, Mykola Mezentsev, Svitlana Gavrylenko та Hennadii Heiko. "КОНТРОЛЬ І ДІАГНОСТИКА СТАНУ ТЯГОВОГО ЕЛЕКТРОПРИВОДА". Системи управління, навігації та зв’язку. Збірник наукових праць 1, № 63 (26 лютого 2021): 58–61. http://dx.doi.org/10.26906/sunz.2021.1.058.
Повний текст джерелаДисертації з теми "Тяговий асинхронний електропривод"
Ващенко, Ярослав Васильович. "Удосконалення технології діагностування стану тягового асинхронного електроприводу рухомого складу". Thesis, Український державний університет залізничного транспорту, 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/22714.
Повний текст джерелаThesis for a candidate degree by speciality 05.22.09 – Electric transport. – National Technical University "Kharkiv Polytechnical Institute", Kharkiv, 2016. Dissertation is devoted to solving scientific and technical targets improving technology of diagnosing state for traction asynchronous drive electric rolling stock by detecting abnormally dangerous and emergency modes operation and their identification, which allowed to develop methods for early detection and prevention of drive elements failure when it malfunctions occur, as well as minimizing operational costs. The analysis of existing technologies, techniques and methods for diagnosis and protection traction asynchronous drive showed that the most promising in comparison with the existing protection systems of rolling stock, which operate on the principle of control deviations of parameters and prevent the development of emergency modes, there are diagnostics technology provides detection and localization of failures in the early stages. Improved diagnosis technology based on the object model of traction induction motor by using the extended Kalman filter that can detect damage to the stator and rotor windings of traction induction motor, for which proposed to use statistical criteria in real time for assessing its effectiveness To automate the decision approach applied mathematical algorithm simulation based on artificial neural networks for diagnostic feature variable speed oscillation induction motor rotor frequency, with which is possible to exercise effective intellectual automatic fault detection when using simple logical principles is not enough. Developed diagnosis methods are expand existing protection technologies including real technical state of asynchronous traction electric drive and allowing to perform timely malfunctions detection and automatic decision-making to prevent further development of emergency operation, thereby increasing efficiency and reliability traction drive operation.
Ващенко, Ярослав Васильович. "Удосконалення технології діагностування стану тягового асинхронного електроприводу рухомого складу". Thesis, НТУ "ХПІ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/22713.
Повний текст джерелаThesis for a candidate degree by speciality 05.22.09 – Electric transport. – National Technical University "Kharkiv Polytechnical Institute", Kharkiv, 2016. Dissertation is devoted to solving scientific and technical targets improving technology of diagnosing state for traction asynchronous drive electric rolling stock by detecting abnormally dangerous and emergency modes operation and their identification, which allowed to develop methods for early detection and prevention of drive elements failure when it malfunctions occur, as well as minimizing operational costs. The analysis of existing technologies, techniques and methods for diagnosis and protection traction asynchronous drive showed that the most promising in comparison with the existing protection systems of rolling stock, which operate on the principle of control deviations of parameters and prevent the development of emergency modes, there are diagnostics technology provides detection and localization of failures in the early stages. Improved diagnosis technology based on the object model of traction induction motor by using the extended Kalman filter that can detect damage to the stator and rotor windings of traction induction motor, for which proposed to use statistical criteria in real time for assessing its effectiveness To automate the decision approach applied mathematical algorithm simulation based on artificial neural networks for diagnostic feature variable speed oscillation induction motor rotor frequency, with which is possible to exercise effective intellectual automatic fault detection when using simple logical principles is not enough. Developed diagnosis methods are expand existing protection technologies including real technical state of asynchronous traction electric drive and allowing to perform timely malfunctions detection and automatic decision-making to prevent further development of emergency operation, thereby increasing efficiency and reliability traction drive operation.
Шкурпела, Олександр Олександрович. "Підвищення ефективності тягового асинхронного електроприводу з автономним джерелом живлення". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2020. http://repository.kpi.kharkov.ua/handle/KhPI-Press/49154.
Повний текст джерелаThesis for a candidate degree by speciality 05.09.03 – Electrical complexes and systems. – National Technical University "Kharkov Politechnical Institute", Kharkiv, 2020. The dissertation is devoted to solving the scientific and practical problem of increasing the efficiency of traction asynchronous electric drive (TAED) rolling stock with autonomous power supply by the criterion of maximizing the ratio of moment to current (MTPA) by optimizing the control system of asynchronous motor (AM). The existing approaches to optimization with and without taking into account the influence of the magnetization characteristics of AM are considered. Among the disadvantages of the approach to optimization by the criterion of efficiency maximization is that it requires significant bench tests of the traction electric drive. The MTPA optimization criterion was chosen for further research. It is established that the existing approaches to optimization according to the MTPA criterion were created under the condition of full use of the autonomous voltage inverter and do not take into account the operating modes in the conditions of AM power limitation. The peculiarities of the study of TAED (based on modeling) are considered, which allowed to determine the structure of the simulation model and its necessary components. It is established that for a more in-depth analysis (based on modeling) of the processes occurring in TAED, including during non-standard modes, it is necessary: simulation model of the electrical and control part of TAED; simulation model of the mechanical part of the rolling stock, including the contact "wheel – rail"; simulation model of track profile. For research, a rolling stock with an autonomous power supply – a diesel train DEL-02 was chosen as a basic sample. The creation of simulation models of TAED, consistent with the results of TAED tests of the basic sample allowed to assess the adequacy of the results of the study of optimized TAED. The sequence of the study was implemented according to the following algorithm: to obtain an adequate model of TAED, the control system of TAED of the basic sample was investigated; after verification of the simulation model in the control system, the structure and control algorithm of TAED were replaced, namely the replacement of the scalar control system with a vector system optimized by the MTPA criterion; the results of simulation modeling of train modes of optimized TAED are estimated. Simulation models of components and the general model of TAED which is adapted for carrying out researches on the chosen tasks are developed. The simulation model of the power supply is presented in a simplified way, because the transients of the diesel generator set have a much greater inertia than the processes of development of emergency and non-standard modes in the electrical and mechanical parts of TAED. In the simulation of the system autonomous voltage inverter – traction asynchronous motor (AIN – AM), the implementation of the nonlinearity of the magnetic circuit of the simulation model AM was checked by simulating the no-load experiment for eight values of the linear voltage AM. For evaluation, the obtained idling characteristic was compared with the results of bench tests of eight serial AM type AD906 (manufactured by SE "ZAVOD" ELEKTROVAZHMASH"), which allowed to display the statistical deviation of the parameters of existing samples of AM from the estimated not exceeding 5%. To confirm the adequacy of the general model of TAED, a comparative analysis of the simulation results and the results of train tests of the base sample when driving at a speed of 5 km / h and when accelerating to a speed of 50 km / h on a flat section of track. It is established that the deviation of the simulation results from the results of the experiment according to Fisher's F-test does not exceed 5%. When solving the problem of synthesis of AM control system optimized by MTPA criterion, analytical expressions for calculating the angle of position of AM current vector, value of modulus of flux coupling vector of AM rotor, taking into account change of supplied power value are offered. The choice of the method of approximation of the flux coupling characteristic of the AM rotor in the field weakening mode, obtained during the study of transients in the AIN – AM system in the field weakening mode, is substantiated. It is established that the approximation of the flux coupling characteristic of the traction motor type AD906 using a linear function leads to significant deviations of the engine power, namely to the level of 82.6% of the nominal, which in turn reduces the electromagnetic torque by 20%. It is established that when approximating the flux coupling characteristics by a composite function of two linear ones allows to reduce this effect, however, at the fracture site the characteristics disturb the power consumption and overload the induction motor by 4%. Approximation of the magnetization characteristic using a 4th order polynomial does not have such effects as the choice of the approximation method. It is established that without taking special measures to detect and stop excessive slippage in the wheel – rail contact, the development of frictional oscillations is accompanied by alternating values of the electromagnetic moment of AM, which exceed the allowable (1.2 – 1.5 times). Therefore, for TAED the mathematical description of the block of correction and distribution of the AM current depending on current rotational speeds of AM rotors is offered that allowed to limit acceleration of rotational frequencies, for control of dynamics of movement or creation of effective protection against excessive slipping of wheel pairs (boxing, yuz). The efficiency of such a system was studied in the simulation of train modes of operation when moving along the track with unsatisfactory conditions of traction of the wheel with the rail. It is established that the use of the correction and current distribution unit AM excludes excessive slippage of the wheelsets in the implementation of the ultimate in terms of traction. A simulated model of optimized TAED was developed and it was found that the use of optimization according to the MTPA criterion taking into account the amount of power supplied to AM allows to increase the electromagnetic torque of AM depending on the power limit from 2% to 53% in start-up mode and power factor by 17.6%. Thus, in the course of the study it was shown that the use of optimization according to the criterion of MTPA taking into account the amount of power supplied to the AM increases the efficiency of the autonomous traction drive.
Шкурпела, Олександр Олександрович. "Підвищення ефективності тягового асинхронного електроприводу з автономним джерелом живлення". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2020. http://repository.kpi.kharkov.ua/handle/KhPI-Press/49150.
Повний текст джерелаThesis for a candidate degree by speciality 05.09.03 – Electrical complexes and systems. - National Technical University "Kharkov Politechnical Institute", Kharkiv, 2020. The dissertation is devoted to solving the scientific and practical problem of increasing the efficiency of traction asynchronous electric drive (TAED) with autonomous power supply by the criterion of maximizing the ratio of moment to current (MTPA) by optimizing the control system of asynchronous motor (AM). Existing approaches to optimization with and without the influence of AM magnetization characteristics are considered. It is established that the existing approaches to optimization by the criterion of MTPA were created under the condition of full use of the standalone inverter by voltage and do not take into account the modes of operation under conditions of power limitation of AM. Component simulation models and a general TAED model have been developed, adapted for conducting research on selected tasks. The simulation model of the power source is simplified, since the transients of the diesel generator set have much greater inertia than the processes of the growth of emergency and abnormal modes in the electrical and mechanical parts of the TAED. In the simulation of the system, the standalone inverter-AM is tested for the implementation of the nonlinearity of the magnetization curve of the AM simulation model by simulating the idling test for eight values of the linear AM voltage. As an estimate, the obtained idling characteristic was compared with the results of bench tests of eight serial AMs of AD906 type (manufactured by SE "ELEKTROVAZhMASH"), which allowed to reflect the statistical deviation of the parameters of the existing AM samples from the calculated, not exceeding 5%. In order to confirm the adequacy of the general model of TAED, a comparative analysis of the simulation results and the results of train tests of the basic sample was carried out when driving at a speed of 5 km / h and at acceleration to a speed of 50 km / h in a flat section of the road. It is established that the deviations of the simulation results from the results of the Fisher F-test do not exceed 5%. In solving the problem of synthesis of the control system AM, optimized by the criterion of MTPA, analytical expressions of calculating the angle of position of the vector of AM current are proposed, the value of the module of the vector of coupling of the rotor AM, taking into account the change of the magnitude of the input power. The rational for choosing of the method for constructing a characteristic flux linkage of the AM rotor in the field attenuation mode, obtained during the study of transients in the system autonomous voltage inverter-AM in the field attenuation mode. For TAED, a mathematical description of the block of correction and distribution of tasks current AM was proposed, depending on the current rotational speed of the AM rotors, which allowed to limit the acceleration of rotation frequencies, to control the dynamics of movement or to create effective protection against excessive slippage of wheel pairs (boxing, yuz). An optimized TAED simulation model was developed and it was found that using the MTPA criterion optimization, taking into account the magnitude of the AM power, allows to increase the AM electromagnetic moment by 53% in the start mode, and the power factor by 17.6%, which confirms the efficiency of the proposed solutions.