Direct Torque Control System of a Variable Frequency Multi-Motor Electric Drive for a Mine Belt Conveyor
The article is devoted to the development and implementation of a variable frequency electric drive with direct torque control in a multi-motor asynchronous drive system for a 2L100U-01 mine belt conveyor. The relevance of this work stems from the significant unevenness in cargo flow at mine belt co...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
T. F. Gorbachev Kuzbass State Technical University
2025-06-01
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| Series: | Горное оборудование и электромеханика |
| Subjects: | |
| Online Access: | https://gormash.kuzstu.ru/index.php?page=article&id=4616 |
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| Summary: | The article is devoted to the development and implementation of a variable frequency electric drive with direct torque control in a multi-motor asynchronous drive system for a 2L100U-01 mine belt conveyor. The relevance of this work stems from the significant unevenness in cargo flow at mine belt conveyors, which necessitates the introduction of a speed control system to ensure constancy in conveyor linear loading and drive load torque. The purpose of this work is to implement a frequency speed control system for a multi-motor electric conveyor drive, with an acceptable level of transient performance in terms of both speed and torque. Direct torque control by the method of space-vector pulse width modulation is used because of the lower pulsations of the electromagnetic torque. To minimize the jerks and slips of the belt, a sinusoidal profile of speed and acceleration changes is selected and calculated. The developed system with a multi-inverter frequency converter is simulated in MATLAB/Simulink. The simulation results confirm the advantages of a sinusoidal speed control system compared to a linear control profile. Based on the results of the work, conclusions were drawn about the ability of the developed system to ensure conveyor start and speed control with an acceptable level of load without belt slip. The authors set further tasks to equalize the load values between conveyor drive motors in static and dynamic operation modes. |
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| ISSN: | 1816-4528 2949-0634 |