基于S7-1500PLC的变频恒压供水系统设计(附CAD电气控制图)(任务书,开题报告,外文翻译,论文说明书12000字,CAD电气控制图,答辩PPT)
摘要
通过对现在小区居民的生活用水和国内外研究现状的分析，结合如今各大城乡小区的供水方式的思考，确定了本设计的基本方案。先对此系统理论知识研究、了解，确定了整体设计思路。然后研究系统的结构和组成。对系统各元器件的工作原理进行了解，明确各硬件的选型要求及注意事项。在符合系统原运行的基本要求以后，考虑各元器件的成本、运行要求、维护等方面的综合因素，完成硬件的合理选型。
在确定各硬件以后，着手开始软件部分的设计，根据系统运行的原理，完成原理图的绘制，其中包括主电路以及控制回路的电路图绘制。完成I/O点分配。PLC是本系统的组合要控制机构，运用VIA Portal V13软件进行控制软件的编译，经检测编译，均为任何警告及错误。
关键词：变频调速恒压供水PLC组态软件
Variable frequency constant pressure water supply system based on S7-1500PLC
Abstract
Through the analysis of the current situation of domestic water and domestic water and domestic water, combined with the current thinking of the way of water supply in major urban and rural areas, the basic design of this design is determined. First, the system theoretical knowledge research, understanding, determine the overall design ideas. And then the structure and composition of the system are studied. The principle of each component of the system to understand, clear the hardware selection requirements and matters needing attention. In line with the basic requirements of the system after the operation, considering the cost of the components, operation requirements, maintenance and other aspects of the comprehensive factors, the completion of the reasonable selection of hardware.
After determining the hardware, proceed to start the design of the software part, according to the principle of the system operation, complete schematic drawing, including the main circuit and control circuit diagram drawing. Complete I/O point assignment. PLC is a combination of the system to control the organization, the use of Portal V13 VIA software to control the software compiler, the detection of the compiler, are any warning and error.
Keywords: frequency conversion velocity modulation; constant pressure water supply ;PLC ;configuration software
目录
摘 要 I
Abstract II
第一章 引言 3
1.1研究背景 3
1.2 国内外研究现状 4
1.3主要研究内容 4
第二章系统原理及组成 4
2.1电动机的调速原理 4
2.2系统的组成及硬件选型 4
2.3系统控制流程 8
2.4水泵切换条件分析 9
第三章系统的硬件设计 10
3.1 PLC的I/O分配 10
3.1.1系统功能分析 10
3.1.2输入输出点分配 10
3.2 系统主电路设计 11
第四章 系统的软件设计 15
4.1软件设计分析 15
4.2 PLC程序设计 16
4.2.1 TIA PORTAL V13简介 16
4.2.2控制系统主程序设计 16
4.2.3控制系统子程序设计 19
4.2.4PID控制及其控制算法 22
4.3 模拟仿真系统设计 24
4.3.1 操控系统界面 24
4.3.2 HMI变量表 27
结语 27
参考文献 29
致谢 31
附录 32
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