Simulation of load traffic and steeped speed control of conveyor

Innovations and Prospects of Development of Mining Machinery and Electrical Engineering

矿业工程;电工学

Reutov, A.A.^1

Bryansk State Technical University, 7, 50-letiya Oktyabrya Blvd., Bryansk

241035, Russia^1

关键词: Analytical formulas;    Empirical values;    Incremental algorithm;    MathCAD software;    Monotonic variations;    Optimal parameter;    Simulation example;    Speed regulation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/87/8/082041/pdf
DOI  :  10.1088/1755-1315/87/8/082041

来源: IOP

【 摘 要 】

The article examines the possibilities of the step control simulation of conveyor speed within Mathcad, Simulink, Stateflow software. To check the efficiency of the control algorithms and to more accurately determine the characteristics of the control system, it is necessary to simulate the process of speed control with real values of traffic for a work shift or for a day. For evaluating the belt workload and absence of spillage it is necessary to use empirical values of load flow in a shorter period of time. The analytical formulas for optimal speed step values were received using empirical values of load. The simulation checks acceptability of an algorithm, determines optimal parameters of regulation corresponding to load flow characteristics. The average speed and the number of speed switching during simulation are admitted as criteria of regulation efficiency. The simulation example within Mathcad software is implemented. The average conveyor speed decreases essentially by two-step and three-step control. A further increase in the number of regulatory steps decreases average speed insignificantly but considerably increases the intensity of the speed switching. Incremental algorithm of speed regulation uses different number of stages for growing and reducing load traffic. This algorithm allows smooth control of the conveyor speed changes with monotonic variation of the load flow. The load flow oscillation leads to an unjustified increase or decrease of speed. Work results can be applied at the design of belt conveyors with adjustable drives.