基于PLC的矿井提升机变频调速系统方案设计书.docVIP

摘要 洛阳理工学院毕业设计（论文） PAGE IV PAGE II 摘 要 传统的矿井提升机控制系统主要采用继电器-接触器进行控制。这种控制系统存在可靠性差、操作复杂、故障率高、电能浪费大、效率低等缺点。采用PLC与变频器相结合的控制方案对原有电控系统进行改造，提高整个电控系统安全可靠性、控制精度及调速性能。 本文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。 论文根据矿井提升机的运行特性要求，对变频器和PLC 进行选型，并对系统的软、硬件进行设计，其中包括检测模块、控制模块、保护模块、显示模块和抗干扰模块的设计，最后进行系统集成和调试。 采用该控制系统，使提升机工作可靠，使用方便，同时具有动态显示的功能，节能效果明显。 关键词：矿井提升机， PLC，变频调速 The Freouency Conversion Use on The Speed Adjustment of Shaft Hoist on The Basis of PLC Control ABSTRACT The traditional shaft hoist control system is always controlled by the relay-contactor. The system has many disadvanges such as bad reliability，complicated operation，high fault rate，large energy –wasting and low efficiency. we adopt PLC and Transducer to reform for original control system, so as to raise the safety, reliability, control precision and speed regulation performance of the whole electric controlled system. The paper applied PLC(Programmable Logic Controller)and frequency converter to the system，and have carried on deeper research in feasibility. Paper based on the operation of mining properties hoist requirements，the selection of frequency converter and PLC，and the system software and hardware design. Including the detection module，control module，protect module，display module and anti-jamming module design，the final system integration and debug. Adopting control system，the shaft hoist works reliably，easy to use，energy-saving well，and have dynamical shown function. KEY WORDS: Shaft hoist，PLC，Frequency conversion 前言 目　录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc324954037 前　言 PAGEREF _Toc324954037 \h 1 HYPERLINK \l _Toc324954038 第1章 矿井提升机变频调速系统的设计 PAGEREF _Toc324954038 \h 3 HYPERLINK \l _Toc324954039 1.1 矿井提升机对电气控制系统的要求 PAGEREF _Toc324954039 \h 3 HYPERLINK \l _Toc324954040 1.2 提升机调速控制系统方案设计 PAGEREF _Toc324954040 \h 4 HYPERLINK \l _Toc324954041 1.2.1 控制单元基本原理 PAGEREF _Toc324954041 \h 4 HYPERLINK \l _Toc324954042 1.2.2 调速基本原理 PAGEREF _Toc324954042 \h 6 HYPERLINK \l _Toc324954043 1.2.3 系统设计 PAGE