基于PLC的恒压供水控制系统设计

基于PLC的恒压供水控制系统设计摘要随着工业智能化浪潮的加速推进，绿色能源管理设备正从概念验证迈向深度应用阶段。在城市高层建筑供水领域，传统机械式调压系统已难以匹配现代化建筑的动态需求，构建基于数字孪生理念的智慧供水网络成为破解能耗困局的关键路径。通过融合边缘计算单元与模糊PD控制算法，新一代供水系统实现了对管网压力的毫秒级动态感知与自主决策，配合变频驱动技术对水泵集群的智能轮换调度，使每台设备始终运行在高效能区间。依托变频器在压力调节方面的核心优势，结合模块化控制系统架构设计，形成完整的变频调速解决方案。通过建立上位机与PLC控制单元之间的实时通信网络完成系统联调，最终实现管网压力精准控制与能耗优化的双重目标，该架构创新性地采用分布式物联节点取代传统集中控制模式，借助5G窄带通信构建起设备间的神经网络，配合云端能耗分析平台，最终形成压力波动自适应补偿与能耗可视化管理双闭环，为建筑流体输送系统开辟了全天候自优化的节能新范式。关键词：PLC;变频器；恒压供水；变频器的调速ABSTRACTWith the rapid advancement of industrial intelligence,green energy management technologiesare transitioning from conceptual validation to deep application.In urban high-rise building watersupply systems,traditional mechanical pressure regulation methods increasingly fail to meet thedynamic demands of modern infrastructure,making the development of smart water networks basedon digital twin principles a critical pathway to address energy efficiency challenges.By integratingedge computing units with fuzzy PID control algorithms,next-generation water supply systemsachieve millisecond-level dynamic sensing and autonomous decision-making for pipeline pressure.Combined with intelligent rotational scheduling of pump clusters through variable frequency drive(VFD)technology,each device operates consistently within optimal efficiency ranges.Leveragingthe core advantages of frequency converters in pressure regulation and modular control systemarchitecture,a comprehensive variable frequency speed control solution is established.Through real-time communication networks connecting host computers and PLC control units,system integration and commissioning are completed,achieving dual objectives of precise pressurecontrol and energy consumption optimization.This architecture innovatively replaces traditionalcentralized control with distributed nodes,constructing an equipment neural network via 5Gnarrowband communication.Synchronized with cloud-based energy analytics platforms,it forms adual closed-loop system featuring adaptive pressure fluctuation compensation and visualized energymanagement.This breakthrough creates self-optimizing energy-saving paradigm for building fluidtransportation systems,redefining intelligent regulation in modern hydraulic infrastructure.Key Words:PLC;Inverter;Constant pressure water supply;Variable frequency speed regulation目录摘要1Abstract..·····访目录.iⅲ第一章绪论..-4-1.1本课题的研究背景.-41.2恒压供水系统的现状..-5-1.3本论文的主要内容...第二章系统的总体设计-7-2.1变频恒压供水的能耗分析-7-2.2系统的组成以及整体控制框图..-8-第三章系统硬件介绍.·.-10-3.1PLC的概述.......。。。。。。-10-3.1.1可编程控制器....。-10-3.1.2PLC的特点..11-3.1.3PLC的工作原理....-123.2变频器概述.-13-3.2.1变频器的结构..-13-3.2.2变频器的特点.....-14-3.2.3变频器的使用.......-15-3.3设备的选型....-16-3.4系统控制电路设计.........-17-3.5PLC的端口分配以及外围接线图-18-第四章系统的软件设计4.1系统软件设计分析.....-204.2PLC程序设计.....-20-4.2.1控制系统主程序...-20-4.2.2控制系统子程序设计.....-24-第五章仿真与调试分析.......-28-5.1MCGS的介绍...-28-5.2上位机与PLC通讯设置.-295.2组态调试窗口........-33-第六章总结与展望......-38-6.1总结….-38-6.2展望...-38参考文献.···...-39致谢.…··.-40-iv