Modeling soft start of belt conveyor induction motor

The study aims at justification of soft start of conveyor belt. A straightforward start of a loaded conveyor entails the increased inertia and overload of pull chains and drives. The excessive takeaway moment can induce slipping between the belt and driving drum, vibrations of the empty belt branch and frictional sliding of drive. This results in the belt wear and failure of the equipment. The belt conveyor studies used a finite-dimensional model in the problem space. This article describes the SimPowerToolbox and Simulink modeling of soft start of a short-circuited induction motor and a thyristor-motor drive. The modeling results allow comparing the two types of the belt start. The soft start reduces in-rush current, eliminates jerks in power transmission, saves power and protects the equipment. The soft start involves a longer running-in of the conveyor but the concentrated masses move smoother and with a little vibration, the forces in the belt change gently, and pulling gets stabilized without readjustment. The developed model enables analyzing the dynamic behavior of the motor and mechanisms of the conveyor, forces in the belt, the belt sliding and pulling ratio. The results of this research can be used in the belt tension and pulling control in the starting and breaking conditions, to avoid frictional sliding of the motor and slipping of the belt when adjusting the belt velocity subject to the volume of random load flow on the conveyor.

Keywords: belt conveyor, induction motor with short-circuited rotor, integrated mathematical belt conveyor–induction motor model, straightforward start, soft start device, thyristor converter, discrete phase control, dynamic forces in belt, conveyor pulling ratio.
For citation:

Dmitrieva V. V., Sobyanin A. A., Sizin P. E. Modeling soft start of belt conveyor induction motor. MIAB. Mining Inf. Anal. Bull. 2022;(6):77-92. [In Russ]. DOI: 10.25018/0236_1493_2022_6_0_77.

Issue number: 6
Year: 2022
Page number: 77-92
ISBN: 0236-1493
UDK: 621.313.334
DOI: 10.25018/0236_1493_2022_6_0_77
Article receipt date: 01.12.2021
Date of review receipt: 05.04.2022
Date of the editorial board′s decision on the article′s publishing: 10.05.2022
About authors:

V.V. Dmitrieva1, Cand. Sci. (Eng.), Assistant Professor, e-mail:,
A.A. Sobyanin1, Master’s Degree Student, e-mail:,
P.E. Sizin, Cand. Sci. (Phys. Mathem.), Assistant Professor, e-mail:, Institute of Basic Education, National University of Science and Technology «MISiS», 119049, Moscow, Russia,
1 Gubkin Russian State University of Oil and Gas (National Research University), 119991, Moscow, Russia.


For contacts:

P.E. Sizin, e-mail:


1. Bebic V., Ristic L. Speed controlled belt conveyors: drives and mechanical considerations. Advancts in Electrical and Computer Engineering. 2018, vol. 18, no. 1, pp. 51—60. DOI: 10.4316/AECE.2018.01007.

2. Kassay P., Homišin J., Urbansky M., Grega R. Transient torsional analysis of a belt conveyor drive with pneumatic flexible shaft coupling. Acta Mechanica et Avtomatica. 2017, vol. 11, no. 1, pp. 69—72. DOI: 10.1515/ama-2017-0011.

3. Lustenkov M. E., Skaryno B. B., Lustenkova E. S. The choice of an asynchronous motor for driving a conveyor belt with a parallel gearbox shaft. Proceedings of Higher educational institutions. Маchine building. 2019, no. 2, pp. 3—10. DOI: 10.18698/0536-1044-2019-2-3-10.

4. Dmitriev V. G., Shakhmeyster L. G. Teoriya i raschet lentochnykh konveyerov [Theory and calculation of belt conveyors], Moscow, Mashinostroenie, 1987, 336 p.

5. Metel'kov V. P., Liebermann J. L. The question of choosing the trigger mode of belt conveyor. Electrotechnical Systems and Complexes. 2019, no. 2(43), pp. 54—59. [In Russ]. DOI: 10.18503/2311-8318-2019-2(43)-54-59.

6. Xiaojian Lui, Shanguo Yang, Meijuan Shi Simulation on the starting of belt conveyor. Computer Applications in the Mineral Industries. CRC Press, 2020, pp. 423—426. DOI: 10.1201/9781003078661-85.

7. Pavlov V. E. Comparison of two starting options for conveyor belt electric driv. Proceedings of Irkutsk State Technical University. 2020, vol. 24, no. 5, pp. 1069—1079. [In Russ]. DOI: 10.21285/1814-3520-2020-5-1069-1079.

8. Greman-Galkin S. G. Matlab & Simulink. Proektirovanie mekhatronnykh sistem na PK [Matlab & Simulink. Designing mechatronic systems on a PC], Saint-Petersburg, Korona-Vek, 2011, 368 p.

9. Terekhin V. B., Dement'ev Yu. N. Komp'yuternoe modelirovanie sistem elektroprivoda v Simulink [Computer modeling of electric drive systems in Simulink], Moscow, Yurayt, 2018, 306 p.

10. Pantel O. V. Methodology for calculating parameters of an asynchronous motor for modeling its operating modes in Matlab/Simulink. Academy. 2015, no. 2(2), pp. 7—11. [In Russ].

11. Zapenin I. V., Bel'for V. E., Selishchev Yu. A. Modelirovanie perekhodnykh protsessov lentochnykh konveyerov [Modeling of transient processes of belt conveyors], Moscow, Nedra, 1969, 56 p.

12. Dmitrieva V. V., Sizin P. E. The analysis of belt conveyor models at different number of approximating masses. MIAB. Mining Inf. Anal. Bull. 2022, no. 1, pp. 34—46. [In Russ]. DOI: 10.25018/0236_1493_2022_1_0_34.

13. Dmitrieva V. V., Gershun S. V. Automatic stabilization of the traction factor of the main belt conveyor with a two-motor drive. MIAB. Mining Inf. Anal. Bull. 2010, no. 3, pp. 246—255. [In Russ].

14. Sokolov I. A. Features of modeling power switches in soft-start devices of an asynchronous electric motor. Bulletin of the Kuzbass State Technical University. 2016, no. 4, pp. 89—94. [In Russ].

15. Sitnikov A. Thyristor device for smooth start of an asynchronous motor. Sovremennaya elektronika. 2008, no. 9, pp. 50—53. [In Russ].

16. Sarathbabu N. V., Murthy C. S. N., Aruna M. Minimization of specific energy of a belt conveyor drive system using space vector modulated direct torque control. International Journal of Innovative Technology and Exploring Engineering. 2019, vol. 8, no. 4. DOI: 10.18698/05361044-2019-2-3-10.

17. Dmitrieva V. V., Sizin P. E., Sobyanin A. A. Application of the soft starter for the asynchronous motor of the belt conveyor. IOP Conference Series: Earth and Environmental Science. 2021, vol. 942, no. 1, article 012003. DOI: 10.1088/1755-1315/942/1/012003.

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