SCR-M直流电梯拖动与控制系统的设计(电枢电路双向整流供电)(能耗制动).docVIP

PAGE 38 毕 业 论 文 题目： SCR-M直流电梯拖动与控制系统的设计（电枢电路双向整流供电） SCR-M cocurrent elevator dragging and control system’s design (armature circuit bidirectional rectification power supply) 系 别： 专 业： 班 级: 姓 名: 学 号: 指导教师: 2011年 月 日 摘 要 随着经济的高速发展，微电子技术、计算机技术和自动控制技术也得到了迅速发展，交流变频调速技术已经进入一个崭新的时代，其应用越来越广。电梯是现代高层建筑的垂直交通工具，其设计要求稳定性、安全性及高。随着人们生活水平的不断提高,对电梯的要求的也相应提高，电梯得到了快速发展，目前电梯控制系统主要有三种控制方式：继电器控制系统、PLC控制系统、微机控制系统。PLC控制系统由于运行可靠性高，使用维修方便，抗干扰性强,设计和调试周期较短等优点，倍受人们重视，已成为目前在电梯控制系统中使用最多的控制方式。 本文在阐述电梯的基本结构和功能，电梯的电力拖动及其性能要求的基础上，针对SCR-M直流电梯拖动和控制系统，通过电枢电路双向整流供电，使用PLC原理，设计了电梯的控制系统，包括层楼指示、轿厢内指令和厅外召唤指令的登记、记忆及消除等部分，实现轿内与各层呼梯指令的记录、电梯运行方向和选层的控制，电梯上下行和自动开关门、电梯的指层控制等功能。 关键词 ： 电梯 电力拖动 控制系统 Abstract Along with the economical high speed development, the microelectronic technology, the computer technology and the automatic control technology also obtained the rapidly expand, the exchange frequency conversion velocity modulation technology already entered for one brand-new time, its application was getting more and more broad. The elevator is the modern high-rise construction vertical transportation vehicle, its design requirements stability, security and high. Along with the people living standards unceasing enhancement, also correspondingly enhances to elevators request, the elevator obtained the fast development, at present the lift control system mainly has three control modes: Black-white control system, PLC control system, microcomputer control system. Because the PLC control system moves the reliability to be high, the use service is convenient, anti-jamming, the design and the debugging cycle is short and so on merits, time is taken seriously the people, have become present use most control modes in the lift control system. This article in elaborated that elevators basic structure and the function, elevators electric drive and in performance requirements foundation, in view of the SCR-M cocurrent elevator dragging and