Research and Application Based on Full Digital DC Speed Adjusting Device in Mine Hoist Automation System

Aiming at the disadvantages of conventional analog DC speed adjusting in mine hoists, based on the analysis DC speed control system mathematical model, this article induces application of full digital DC speed adjusting device based on 6RA70 DC device. This article gives the drive system hardware configuration and software design. This system has performed stably, safely and economically, gaining much economy and society benefit.