| Summary: | 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.
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