At the present paper the idea and the algorithm of smooth starting and smooth stopping for the industrial mechanisms, having at its structure asynchronous motors, is presented. Results of modeling of transitive processes, proceeding in asynchronous motor are presented, during its starting and stopping.
Results have shown, that using of a S-shaped profile of starting and stopping of electric drive of the load-lifting mechanism, in particular the passenger lift, provides smoothness of a motion of a cabin of the lift that affects comfort of passengers, and also affects safety of mechanical parts of the equipment (a reducer of a drive).