Authors: I.Yu. Semykina, V.A. Negadaev

Title of the article: Method of increasing energy efficiency of multi-motor frequency-controlled electric drives of the main belt conveyors

Year: 2017, Issue: 3, Pages: 134-142

Branch of knowledge: Electrical engineering

Index UDK: 62-83:005.22

DOI: -

Abstract: Mining machines of coal mines are a special category of industrial application of the electric drive. Among technological processes in the mining industry, coal transportation to the surface with the help of main belt conveyors is one of the most important processes. Such a conveyor operates under conditions of varying load. The basic reserves of economy and rational use of electric power are achieved both due to reduction of losses in the electric drive, and due to the use of an automated electric drive with a frequency converter. This confirms that the tasks of researching the characteristics and operating modes, as well as the introduction of an energy-saving electric drive for the belt conveyor are relevant. The article suggests a technique for increasing the energy efficiency of multi-motor frequency-controlled electric drives of main belt conveyors, based on changing the speed of the conveyor and controlling the magnetic state of the motor. The estimation of economic and energy efficiency of this method is given.

Key words: frequency-controlled electric drive frequency converter energy efficiency main belt conveyor

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