基于三菱PLC控制的恒压供水系统设计.doc

摘 要 本设计是专门对日常用水而设计的恒压供水控制系统。根据国内外的研究现状以及系统的控制要求，制定出了一套适合此系统的控制方案。控制方案中，硬件设计主要对可编程控制器（PLC）机型、变频器机型以及电机泵组的机型做出了选择，同时还对系统的输入输出点进行了规划和分配。在软件设计部分，针对控制要求画出了系统的流程图，并且还对每一部分的流程图进行了功能的解释，使读者能更加轻松的了解整个系统的软件设计情况。在此课题中，还采用了MCGS组态软件，对控制系统进行监视与模拟运行，很直观的再现了现场的实际情况。最后，还对整个系统进行了运行调试，运行结果表明该系统具有水压稳定、硬件组成简单、运行可靠和操作方便等优点。 关键词：恒压供水；可编程控制器；变频器；组态软件  Abstract This design is specially designed for water constant pressure water supply control system. According to the requirements of the current research at home and abroad and the system control, develop a set of control scheme suitable for the system. In the control scheme, the hardware design is mainly to the programmable logic controller (PLC) model , frequency converter and motor pump set model made a choice, but also on the system input and output points of planning and allocation. In software design part, according to draw the flow chart of the system, and the required control and flow chart of every part of the function of explanation, so that readers can more easily understand the software design of the whole system. In this topic, also adopted the MCGS configuration software, to monitor and control system’s simulate, intuitive reproduce the actual situation of the scene. Finally, the debugging of the whole system running, the results on the surface of the system has stable pressure, simple structure, reliable operation and convenient operation. Key words: Constant pressure water supply；Programmable logic Controller；Inverter；Configuration software 目录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc452661594 摘 要 PAGEREF _Toc452661594 \h I HYPERLINK \l _Toc452661595 Abstract PAGEREF _Toc452661595 \h II HYPERLINK \l _Toc452661596 目录 PAGEREF _Toc452661596 \h III HYPERLINK \l _Toc452661597 第一章 绪论 PAGEREF _Toc452661597 \h 1 HYPERLINK \l _Toc452661598 1.1 本课题的目的及研究意义 PAGEREF _Toc452661598 \h 2 HYPERLINK \l _Toc452661599 1.2 恒压供水系统的国内外研究现状 PAGEREF _Toc452661599 \h 2 HYPERLINK \l _Toc452661600 1.3 恒压供水系统的控制要求 PAGEREF _Toc452661600