毕业论文--基于PLC的矿井提升机变频调速控制系统设计.doc

摘要 PAGE IV 基于PLC的矿井提升机变频调速控制系统设计 摘 要 本文针对提升机控制系统中存在的上述问题，把可编程序控制器和变频器应用于提升机控制系统上，并在可行性方面进行了较深入的研究。根据提升机的运行特点，控制系统采用工控机监控提升机变频调速系统， PLC控制系统、变频调速系统等组成。为了提高系统的可靠性，对提升机各种物理量及控制单元进行控制监控。提升机的动态监测由工控机或触摸屏和组态软件组成。用户在组态环境中完成动画设计、设备连接、编写控制流程和工程所需要的信息报表以及结果打印等。主控系统采用PLC系统，硬件简洁、软件灵活性强、调试方便、维护量小，配合一些专用电子模块组成的提升机控制设备，可供控制高压带动动力制动或低频制动等。同时能检测各电机故障现象并送往上位机显示。减少了传统继电器接触式控制系统的中间环节，减少了硬件和控制线，极大提高了系统的稳定性，可靠性。 关键词：矿用提升机；变频调速；矢量控制；可编程控制器 The Freouency Conversion Use on The Speed Adjustment of Shaft Hoist on The Basis of PLC Control　　　　　　　 ABSTRACT ???Elevator Control System In this paper, the above problems exist in the PLC and frequency converter used in elevator control system, and for a more in-depth feasibility study. According to the operation of hoist features, the control system IPC VVVF elevator control system, PLC control systems, frequency control system components. In order to improve system reliability, and various physical quantities on the elevator control unit to control monitoring. Dynamic monitoring of elevator or the touch screen by IPC and configuration software. User environment, complete the animation in the configuration design, equipment connections, control flow and project preparation of the required information statements, and the results of printing. Master control system uses PLC systems, hardware simplicity, the software flexibility and easy commissioning and maintenance of small, specialized electronic modules with a number of the elevator control equipment, drive dynamic braking for control of high pressure or low-frequency braking. While the motor symptoms can be detected and sent to the host computer display. Relay contact to reduce the traditional control system of the intermediate links, reducing hardware and control lines, which greatly improves system stability and reliability.  KEY WORDS:：Shaft hoist；Frequency conversion；Vector control；PLC 前言 目　录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc295503824 前　言 PAGEREF _Toc295503824