Analysis of electric drive systems of a single-bucket excavator with continuous electric machine regulation

Abstract

Currently, the excavator drive of the generator-motor system with continuous electric machine regulation has become widespread. Our analysis of currently existing systems (drives of excavators SE-3, EGL-15, ESh-75/10) made it possible to propose a classification for electric drives of single-bucket excavators with continuous electric machine regulation. The classification is based on two features: the regulation principle and the excitation system in which the control links are located. The proposed classification made it possible to identify the advantages and disadvantages of individual systems, showed the prospects for their development and the expected properties of individual electric drive systems. The final choice of the optimal excavator drive system can only be made with strict consideration of the geological and mining conditions of the deposit, the development systems used, typical load schedules, technical conditions of regulation and economic indicators.