ASYNCHRONOUS ELECTRIC DRIVE WITH SEMICONDUCTOR VOLTAGE REGULATOR

UDC 621.376.54:621.316.722

  • Belyayev Valeriy Pavlovich − PhD (Engineering), Associate Professor, Assistant Professor, the Department of Printing Equipment and Information Processing Systems. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). Email: beliaev@belstu.by

  • Timoshenko Maksim Aleksandrovich − student. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). Email: tima.makc@yandex.by

DOI: https://doi.org/10.52065/2520-6729-2022-255-1-14-21

Key words: AC electric drive, pulse width voltage modulation, modeling.

For citation: Belyayev V. P., Tymoshenko M. A. Asynchronous electric drive with semiconductor voltage regulator. Proceedings of BSTU, issue 4, Print- and Mediatechnologies, 2022, no. 1 (255), pp. 14–21 (In Russian). DOI: https://doi.org/10.52065/2520-6729-2022-255-1-14-21.

Abstract

The material of the article presents the results of a study of parametric control of an electric drive based on an asynchronous squirrel-cage motor, implemented by a semiconductor voltage regulator. The PWM output voltage of the regulator is generated in accordance with a patented method. The main research is the study of the processes of starting an electric drive as a function of changing the values of the effective voltage applied to the stator windings of the electric motor. These dependences are given for classical (phase) parametric control and for PWM control. These dependencies are unambiguous. It was revealed that the time of electromagnetic transient processes in the engine tlag with a controlled start before the start of motion (Tdv = Tidling) takes the corresponding share of the total time set for start tstart. In the remaining period of time, electromechanical transients develop in the electric drive, creating certain accelerations of the technological machine, which may not correspond to the standardized values. Two stages of setting the starting time are proposed: the time of electromagnetic transients in the engine and the time of electromechanical transients in the electric drive (solution of the equation of motion). By setting the change in the values of the effective voltage at the second stage, it is possible to obtain the standardized accelerations of the technological machine. To assess the issues considered, a model of a variable electric drive with PWM control in the MathLab-Simulink computing environment has been developed. The layout of the model is developed using standard Simulink blocks and originally compiled. In the model, an asynchronous machine is represented by a system of differential equations based on the theory of a generalized machine. The model takes into account the setting of the time of the mentioned two stages of starting and the sequential solution of electromagnetic transients in the motor, and then electromechanical transients in the electric drive. The diagram of the model and one of the results of calculating the process of starting the printing machine as a technological object (diagrams of the electromagnetic moment and speed) are presented.

Download

References

  1. Venikov V. A. Teoriya podobiya i modelirovaniya [Theory of similarity and simulation]. Moscow, Vysshaya shkola Publ., 1976. 479 p. (In Russian).
  2. Elektrotekhnicheskiy spravochnik [Electrotechnical reference] / ed. V. G. Gerasimov, P. G. Grudinskiy, V. A. Labuntsov. Moscow, Energoatomizdat Publ., 1988, vol. 3. 616 p. (In Russian).
  3. Soft starters. Available at: https://media.automation24.com/manual/en/38752095 Manual SIRIUS softstarter. pdf (accessed 10.03.2021) (In Russian).
  4. Shubenko V. A., Braslavskiy I. Ya. Tiristornyy asinkhronnyy elektroprivod s fazovym upravleniyem [Asynchronous semiconductor electric drive with parametric control]. Moscow, Energiya Publ., 1972. 200 p. (In Russian).
  5. Braslavskiy I. Ya. Asinkhronnyy poluprovodnikovyy elektroprivod s parametricheskim upravleniyem [Asynchronous semiconductor electric drive with parametric control]. Moscow, Energoatomizdat Publ., 1988. 167 p. (In Russian).
  6. Phase regulation. Available at: https://ru.wikipedia.org/wiki (accessed 10.03.2021) (In Russian).
  7. Belyaev V. P., Davidovich L. M. Elektromekhanika. Elektromekhanicheskoye preobrazovaniye prichastotnom upravlenii elektricheskimi mashinami [Electromechanics. Electromechanical transformation in the frequency control of electrical machines]. Minsk, BGTU Publ., 2004. 123 p. (In Russian).
  8. Belyaev V. P., Gul’kov G. I., Sidorov V. G. Method of pulse-width modulation of the output voltage of alternating current. 764096, 1980, no. 34. 8 p. (In Russian).
  9. Belyaev V. P. Elektrooborudovaniye poligraficheskikh mashin [Electrical equipment of printing machines]. Minsk, BGTU Publ., 2012. 207 p. (In Russian).
  10. Manual. Available at: https://euroec.by/assets/files/danfoss/ Manual VLT Soft Starter MCD 600.pdf (accessed 10.03.2021) (In Russian).
  11. Soft starter for asynchronous motor. Available at: https://drives.ru/stati/ustrojstvo-plavnogo-puskaasinhronnogo-dvigatelya (accessed 10.03.2021) (In Russian).
  12. Soft start and brake device. Manual. Altistart 22. Available at: https://profsector.com/ media/ catalogs/55e83642bc4f3.pdf (accessed 10.03.2021) (In Russian).
  13. Soft start of an asynchronous electric motor with a squirrel-cage rotor. Available at: https://infoelectrik.ru/vybor-kommutacionnoj-apparatury-dlya-montazha/ustrojstvo-plavnogo-puska-asinhronnogo-dvigate lya.html (accessed 10.03.2021) (In Russian).
  14. Petrov L. P. Upravleniye puskom i tormozheniyem asinkhronnykh dvigateley [Control of starting and braking of asynchronous motors]. Moscow, Energoizdat Publ., 1981. 184 p. (In Russian).
  15. Chernykh I. V. Modelirovaniye elektrotekhnicheskikh ustroystv v MATLAB, SimPowerSystem i Simulink [Modeling electrical devices in MATLAB, SimPowerSystem and Simulink]. Moscow, DMK Press Publ.; St. Petersburg, Piter Publ., 2008. 288 p. (In Russian).
  16. Belyaev V. P. Method of starting a short-circuited asynchronous electric motor with parametric control in the stator. Patent RB 10546 (In Russian).
30.12.2021