本科生毕业设计（论文）中文题目： 基于 PLC 的变频调速电梯系统设计 英文题目：DESIGN OF FREQENCY SPEED SYSTEM OF ELEVATOR CONTROUED BY PLC 摘 要随着我国经济的高速进展，微电子技术、计算机技术和自动控制技术也得到了迅速进展，沟通变频调速技术已经进入一个崭新的时代，其应用越来越广。而电梯作为现代高层建筑的垂直交通工具，与人们的生活紧密相关，随着人们对其要求的提高，电梯得到了快速进展，其拖动技术已经进展到了调频调压调速，其逻辑控制也由 PLC 代替原来的继电器控制。本文在已有的通用变频器的基础上，采纳 PLC 对电梯进行控制，通过合理的选择和设计，提高了电梯的控制水平，并改善了电梯运行的舒适感，使电梯达到了较为理想的控制效果。关键词：PLC 变频调速 电梯 ABSTRACTWith the development of the economy,microelectronic technology、computer technology and the automatic theory are developed rapidly ,the AC variable frequency technology has been in a new state.It’s application is becoming more and more widely .But the elevator as an important traffic in skyscraper ,it also has developed quickly wit th the improving requirement of the people .It’s dragging technology has developed from DC timing to AC variable frequency timing and it’s logic control-relay control also has been replaced by PLC The article is based on the now-being general frequency converter,using PLC to control the elevator,the reliability is improved and the feeling of comfort is better through the reasonable selection and design,so the effect of control is more ideal. KEYWORDS: plc frequency conversion timing elevator目录1 绪论......................................................................11.1 电梯的分类............................................................11.2 电梯主要组成部分及工作原理............................................21.3 电梯的进展趋势........................................................42 电梯的总体设计方案论证.......................................
