Keywords
permanent magnet brushless motor
relay vector control system
pulse-width modulation электропривод
бесконтактный двигатель с постоянными магнитами
релейно-векторная система управления
широтно-импульсная модуляция
How to Cite
Abstract
The subject of this paper is the relay vector stator currents control system of permanent magnet brushless motors equipped with DC link current sensor in two-stage frequency converter scheme and two-position relay regulator without hysteresis loop in current control system. The time duration of one nonzero voltage vector during modulation period is fixed at the moment of equality of reference signal and DC link current sensor signal. The time duration of other nonzero voltage vector is calculated on the basis of first pulse duration in accordance with the inverter voltage vector position. The proposed relay vector control approach provides maximum possible speed of response of stator currents control. Examples of motor currents computation are given. References 6, table 1, figures 3.
References
Akinin K.P. Currents formation of brushless magnetoelectric motors // Pratsi Instytutu elektrodynamiky Natsionalnoi Akademii Nauk Ukrainy. – 2011. – №28. – Pp. 36–42. (Rus)
Vinogradov A.B. Digital relay vector control system of an asynchronous drive with improved dynamic characteristics // Elektrichestvo. – 2003. – №6. – Pp. 43–51. (Rus)
Mikhalskyi V.M. Frequency and voltage converters with pulse-width modulation: Analysis, scientific substantiation of means to improve quality of electrical energy / Ph.D.thesis. – Kyiv, 2010. – 488 p. (Ukr)
Akinin K.P., Bondar E.S. Electromechanical system with a combined electric supply for temperature regulation in the refrigeration chamber of a refrigerated vehicle // Proceedings of the 2nd International Scientific and Technical conference on Uncoventional Electromechanical and Electrotechnical systems. Szczecin and Miedzyzdroje, Poland. − 1996. − Vol.2. − Pp. 423–426.
Manuele Bertoluzzo, Guiseppe Buja, Roberto Menis. Direct torque control of an induction motor using a singl current // IEEE Transactions on Industrial Electronics. − 2006. − Vol. 53. − Pp. 778–784.
Thomas Michael Wolbank, Peter Erich Macheiner. Current-controller With single DC link current measurement for inverter-fed AC machines based on an improved observer-structure // IEEE Transactions on Power Electronics. − 2004. − Vol.19. − Pp. 1562–1567.
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright (c) 2023 Array