基于PLC的煤矿提升机控制系统设计

Control System Design of Mine Hoist Based on PLC

针对国内大多数煤矿提升机采用继电控制方式的情况,提出了一种基于PLC的提升机变频调速控制系统。首先对提升机的主要结构进行了介绍,提出了控制系统的总体结构;其次研究设计了系统的硬件结构,主要对系统的主控操作台、变频器、供电电路和自我保护模块进行了选型与设计;最后设计了系统的软件主程序流程。该系统具有一定的节能效果,可满足煤矿生产需求,保障生产效率和工人的生命安全。

Aiming at the situation that most domestic coal mine hoists adopt relay control mode,this paper proposed a PLC-based hoist frequency conversion and speed control system.Firstly,it introduced the main structure of the hoist,and put forward the overall structure of the control system;secondly,it studied and designed the hardware structure of the system,mainly including the selection and design of the main control console,frequency converter,power supply circuit and self-protection module of the system;finally,it designed the main program flow of the system software.The system has a certain energy-saving effect,can meet the needs of coal mine production,ensure production efficiency and workers'life safety.