电梯控制系统毕业论文 基于PLC控制的VVVF交流变频变压调速电梯.docx

电梯控制系统毕业论文 基于PLC控制的VVVF交流变频变压调速电梯.docx随着科学技术的发展，电梯行业出现了翻天复地的变化：电梯企业的生产条件、 人文素质、管理水平有了极大的改善与提高。我国电梯已形成了设计制造、安装调试、 维修保养***服务的一个完整的行业。各电梯公司也在不断改进设计、修改工艺， 更新换代生产更新型的电梯。电梯主要分为机械系统与控制系统两大部份，随着自动 控制理论与微电子技术的发展，电梯的拖动方式与控制手段均发生了很大的变化，老 的直流电梯已被淘汰，交流双速梯、ACVV交流调速梯逐渐被VVVF交流变频变压调速 电梯所取代，控制系统已在大量采用PLC和微电脑控制技术，而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。
关键词：VVVF交流变频变压调速电梯、PLC控制系统
Abstract
With the development of science and technology, the elevator industry appeared to change: a complex enterprise production conditions, the elevator humanistic quality management level, the great improvement and improve. China elevator has formed the design, manufacture, installation, commissioning, maintenance of enterprise-stop services of a complete industry. The company also has a great improvement in elevator design, process changes and update production more new elevator. Elevator mechanical system mainly divided into two most with control system, with the automatic control theory and microelectronics technology development, the elevator and control means drag has changed very greatly, the old de elevator has been eliminated, communication, ACVV exchange double speed stepless frequency is gradually VVVF ladder replaced with variable pressure regulation, control system, elevator has lots of PLC and microcomputer control technology, and PLC control system, high reliability due to the convenient usage and maintenance, strong anti-interference, design and commissioning period is shorter, etc, has been used in the elevator control system in most control mode.
Key words: VVVF ac frequency conversion variable speed elevator、 PLC control system
摘要 4
第一章电梯的概述 5
1电梯的发展 6
7
2. 1按用途分类 8
2. 2按驱动方式分类 8
8
9
9
9
2. 7特殊电梯
10
11
1曳引系统 12
3. 2导向系统 13
14
15
3. 5重量平衡系统 16
17
3. 7电气控制系统 18
3. 8安全保护系统 19
20
第二章PLC的概述 21
1 PLC的定义 21
2 PLC的特点 22
3 PLC的应用领域 23
PLC的分类 24
4. 1按I/