Research And Application On Electric Control System Of DC Drive Mine Hoist

In the background of the retrofit of mine main hoist electrical control system of XISHIMEN Iron, we introduce the design and application of a main hoist electrical control system, based on the research about travel control and computer control technology used in the mine hoist. The main hoist electrical control system adopts the most advanced fully digital DC drive system, programmable control system and advanced control algorithms to transform the main hoist system with outdated equipment and technology,so that change the mine hoist system into an complete digitization DC drive hoist system with international advanced level in today.In the article, the structure of hoist is briefly described, the requirements of the electrical control system of mine hoist are analyzed,the mathematical model of given speed with S-type curve in travel control, and mathematical expressions between speed and travel versus time containing acceleration and deceleration regulation are derived, and appropriate travel control algorithm is chosen. According to Practical requirement, a safe and reliable electrical control system are researched and designed. The electrical control system for mine main hoist includes main control system, complete digitization DC drive system, PC monitor management system and assist control system. This system has the features of forming S-type datum speed curve, setting speed datum beforehand, realizing the function of protection and monitoring, and provides a powerful technique guarantee for safe operation of mine hoist. It is shown from Theoretical analysis that this system is reliable and exactitude and can fully satisfy the requirements of site production.