Abstract
Regarding the current tendency of replacing the geared electric drives with gearless drum motor and substitution of the obsolete induction motors with energy-efficient synchronous motors, the authors consider the difficulties of the high-power permanent magnet synchronous motor and present its model with parameters corresponding to the real belt conveyor electric drive parameters. This paper describes the questions of the vector control system simulation for the synchronous gearless drum-motor of an underground belt conveyor. The control of permanent magnet synchronous motor is realized having regard to rotor angle and random traffic flow. The mechanical system of an underground belt conveyor is represented by the multimass system with the viscoelastic bar. As a conclusion, the article presents the results of the direct torque control system simulation in the speed adjustment mode.
Highlights
The belt conveyors are the most common type of conveyor transport and the most effective method to deliver the coil ore through the mine face
The induction motor drives mostly are non-controllable, in some cases, the speed control is realized by an operator within two or three control steps
In induction motor drives constantly causes start-up and load-rejection overvoltages, the high start-up currents and pulsating torque that lead to additional tension and slippage of a belt
Summary
The belt conveyors are the most common type of conveyor transport and the most effective method to deliver the coil ore through the mine face. The most commonly used type of single-drum electric drive consists of one or two induction motors, a hydraulic clutch, the massive gear, and brake systems. This type of drive contains a lot of elements and takes up much space in narrow mine tunnels. In induction motor drives constantly causes start-up and load-rejection overvoltages, the high start-up currents and pulsating torque that lead to additional tension and slippage of a belt. This mechanical system limits rotation power and reduces efficiency, and has considerable dimensions. The speed control must be realized having regard to the PMSM rotor angle θ and the traffic flow
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.