Development of a mathematical model of a drive based on a low-speed brushless electric motor

Authors: Proshutinskiy D.A.
Published in issue: #5(46)/2020
DOI: 10.18698/2541-8009-2020-5-606
Category: Informatics, Computer Engineering and Control | Chapter: System Analysis, Control, and Information Processing, Statistics
Keywords: model verification, mathematical modeling, low speed brushless motor, control system, stabilizing suspension, steadicam, three-phase motor, MATLAB, Simulink
Published: 13.05.2020

Most stabilizing suspensions and steadicams use low speed brushless motors, the so-called gimbal motors. In this work, the task was to determine the unknown parameters of motor, obtain its mathematical model and drive model equipped with a magnetoresistive absolute position sensor. The resulting model was analyzed in the MATLAB Simulink package. The model was verified using the data obtained from the experimental unit. Comparison of the logarithmic amplitude-frequency characteristics and the response of the drive to a single step effect obtained in the Simulink package and on the experimental unit allows us to conclude that the model has the minimum error and its suitability for further use for changes taking into account the load and the synthesis of correction devices.

References

[1] Shao J. Direct back EMF detection method for sensorless brushless DC (BLDC). Virginia Polytechnic Institute, 2003.

[2] Domanov V.I., Domanov A.V. Razrabotka i issledovanie sistem elektroprivoda s ventil’nymi dvigatelyami [Development and study on motor drive system with brushless DC electric motor]. Ul’yanovsk, UlGTU Publ., 2015 (in Russ.).

[3] Khrushchev V.V. Elektricheskie mashiny sistem avtomatiki [Electric machines of automated systems]. Leningrad, Energoatomizdat Publ., 1985 (in Russ.).

[4] Semenov B.Yu. Silovaya elektronika [Power electronics]. Moscow, Solon-Press Publ., 2011 (in Russ.).

[5] Popov V.S., Nikolaev S.A. Obshchaya elektrotekhnika s osnovami elektroniki [General electrical engineering with fundamentals of electronics]. Moscow, Energiya Publ., 1972 (in Russ.).

[6] Tashakori A., Ektesabi Moscow, Hosseinzadeh N. Modeling of BLDC motor with ideal BackEMF for automotive applications. Proc. World Cong. Engineering, 2011, vol. II, pp. 1504–1508.

[7] Purna Chandra Rao A., Obulesh Y.P., Sai Babu Ch. Mathematical modeling of BLDC motor with closed loop speed control using PID controller under various loading conditions. ARPN JEAS, 2012, vol. 7, no. 10, pp. 1321–1328.

[8] Tsai M.F., Quy T.P., Wu B.F., et al. Model construction and verification of a BLDC motor using MATLAB/SIMULINK and FPGA control. 6th IEEE Conf. Industrial Electronics and Applications, 2011, pp. 1791–1796. DOI: https://doi.org/10.1109/ICIEA.2011.5975884

[9] Sharapov V.M., Polishchuk E.S., eds. Datchiki [Sensors]. Moscow, Tekhnosfera Publ., 2012 (in Russ.).

[10] Anuchin A.S. Sistemy upravleniya elektroprivodov [Motor drive control systems]. Moscow, MEI Publ. house, 2015 (in Russ.).