MODELINGMODES OF VARIABLE FREQUENCY ELECTRIC DRIVE THE VENTILATION FANAT THE MINE FOR THE EXTRACTION KIMBERLITES
This article is devoted to research of modes to operation of the fan of the main airing of mine with the help of mathematical modeling software package MatLab. Produced description of the underground mine on extraction of kimberlites and ventilation systems. Describes the fan of the main airing.Selected type of fan and motor for the main ventilation fan installation.Adopted by the drive control system.Describes the principle of operation of a system of frequency-regulated electric drive.A simulation modes of operation of the fan motor with frequency-regulated electric drive. The results of modeling of the main parameters of the motor: current, speed rotation, electromagnetic torque. The results of modeling are presented in diagrams of dependences of the investigated variables from the time of the simulation. Conclusions are made about the expediency of use of the system variable-frequency control for synchronous motor of the fan installation of the main airing in relation to an underground mine on extraction of kimberlites.