Control of energy efficient belt conveyor gearless drummotor

Abstract

There is a tendency for simplifying the construction of gears. Many manufacturers design gearless electric drives for power mechanisms like traction. Rejection of mechanical transmission and replacing obsolete induction motor with energy-efficient permanent magnet synchronous machine allow to increase electric drive reliability, reduce repair and maintenance costs, also improve the technological process and industrial safety. This article is devoted to questions of permanent magnet synchronous motor control for underground belt conveyor gearless drum-motor. The model of the electrical machine this type with special construction was created by finite elements method. In modeling, Infolytica MagNet and MotorSolve tools were used. The key thing is the special characteristics of high-torque slow-moving power machines was quantified by this modeling. The last section of the article contains the comparison of methods for high-torque slow-moving PMSM control. Finally, the simulation results for operating with vector control system is shown.

Conveyor Intermediate TT Drive with Power Transmission at the Return Belt

“…In the operation of belt intermediate drives, it is necessary to control the motors both in steady and transient motion, i.e., variable material flow and start-up [24][25][26][27]. One of the solutions is the use of control systems based on vector inverters, with separate control of engine rpm and torque [28][29][30]. These types of solutions are successfully used in various types of real installations [12,[31][32][33][34].…”

Improving the Energy Efficiency of Operation of a Multi-Motor Plate Conveyor in the Steady-State Operation Mode

“…An analysis of the experience of operating plate conveyors at mining enterprises has shown that the use of modern frequency-controlled electric drives is a promising direction in improving the efficiency of operation of multi-motor plate conveyors, providing control of the speed of movement of the bearing web, control of load distribution between drives, elimination of equalizing forces in the conveyor traction circuit, automatic start of a multi-motor conveyor taking into account the elastic-viscous properties of tractionthe load-bearing canvas and a number of other factors [5][6][7][8].…”