Návrh na modernizaci řídících systémů a elektrických pohonů pásových dopravníků na Vršanské uhelné, a. s.

Abstract

The thesis describes the history and current state of control systems and electric drives on mining machines and technologies in the company Vršanská uhelná, a. s., and explains their importance for safe and trouble-free operation. It quantifies the costs for the purchase od new systems and calculates the resulting electricity savings and a proposal for their application in other operations of the mining company.My thesis is focused on the lower failure rate of mining machines, faster start-up of belt conveyor lines and electrical machines with less current surge in the power supply network at VUAS. The benefit will also be the saving of electricity by the complete reconstruction of control systems and electric drives, including highpower electronics and cabling. In this thesis are presented the calculations of shortening the start-up time of transport lines, saving electricity and the return of all necessary costs for the overall reconstruction of belt conveyors.