Data-driven multi-drive conveyor torque control method and device

Abstract

The invention discloses a data-driven multi-drive conveyor torque control method and device.The control method comprises the following steps: dividing a bearing section of a conveying belt into n equal parts with fixed length, and obtaining the material quantity on each equal part of the conveying belt through an online image loading capacity measurement means; taking the belt speed, the distribution vector, the torque of a main driving unit, the torque of a middle driving unit and the torque of a tail driving unit as input quantities, and establishing a data driving learning model of the torque deviation of the main driving unit and the middle driving unit and the torque deviation of the middle driving unit and the tail driving unit. By means of the online loading capacity measurement means, a torque deviation prediction model is obtained by adopting a data driving method so as to realize coordination control between the master driving unit and the slave driving unit. The control performance of an unloading type multi-point driving conveyor is improved, and the safety of the conveyor is improved. Modeling training is completed through the LSSVM, the requirements for storage space and online computing power are low, the method is suitable for industrial controllers such as a PLC, and the problem of tension of an unloading point rubber belt of an unloading type multi-point driving belt conveyor is solved.

Description

technical field [0001] The invention relates to the field of conveying devices, in particular to a data-driven multi-drive conveyor torque control method and device. Background technique [0002] As a continuous conveying equipment for bulk materials, the belt conveyor system is widely used in various industries of the national economy such as steel, coal, ports, electric power, building materials, etc., with a large amount of use and a wide range of applications. Belt conveyors are constantly developing in the direction of large size, long distance, high speed, large capacity and intelligence. When designing and developing a long-distance belt conveyor system, since the driving force provided by a single drive motor is limited, and the maximum tension that the conveyor belt can withstand is also limited, large-scale belt conveyors usually use multiple motors. On the one hand, it can reduce the capacity of a single motor, and on the other hand, it can also reduce the tensio...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the slipping problem of the unloading multi-drive conveyor in the prior art when the tension of the tape on the side winding out from the drive roller becomes smaller under the change of working conditions, and to provide a data-driven method to obtain the main drive unit and the slave drive unit. The prediction model of torque deviation between them is used to realize the coordinated control between the master and slave drive units, and improve the control performance of the unloading multi-point drive conveyor and the safety of the conveyor

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