技术领域Technical Field
本发明涉及压力供水设备技术领域，具体为一种融合管网模型智能算法的节能型泵组运行控制系统。The present invention relates to the technical field of pressure water supply equipment, and in particular to an energy-saving pump group operation control system integrating an intelligent algorithm of a pipe network model.
背景技术Background technique
城镇建设用地的局限性导致城镇建筑向高层建筑方向发展为主流，城镇供水系统技术上难以保证高层建筑用水压力的需求，因此，城镇大量建筑供水需要通过二次加压来满足压力的需求。传统的“水泵+水箱”的供水方式存在水箱二次污染的风险，变频调速供水方式逐渐成为城镇二次加压供水的主流。但由于变频泵组设计选型是按最不利用水工况确定，难免出现小流量用水时泵组的效率降低的情况。二次供水变频泵组低效运行已成为行业的痛点和难点问题，也是双碳背景下急需解决的问题。如何通过技术的改进提升变频泵组的运行效率具有重要的意义。The limitation of urban construction land has led to the mainstream development of urban buildings towards high-rise buildings. It is technically difficult for urban water supply systems to guarantee the water pressure requirements of high-rise buildings. Therefore, a large number of urban buildings need to meet the pressure requirements through secondary pressurization. The traditional "water pump + water tank" water supply method has the risk of secondary contamination of the water tank, and the variable frequency speed regulation water supply method has gradually become the mainstream of urban secondary pressurized water supply. However, since the design and selection of the variable frequency pump group is determined according to the most unfavorable water use conditions, it is inevitable that the efficiency of the pump group will be reduced when the water flow is small. The inefficient operation of the secondary water supply variable frequency pump group has become a pain point and difficult problem in the industry, and it is also a problem that needs to be solved urgently under the background of dual carbon. How to improve the operating efficiency of the variable frequency pump group through technical improvements is of great significance.
以变频调速技术为基础的水泵出口压力恒定供水模式是目前建筑二次供水的主要方式。这种供水模式是按系统所需最大计算流量和计算扬程为依据进行泵组选型，泵组出口压力按全过程最大用水工况所需压力确定，运行时全过程确保泵组出口压力恒定，控制系统根据流量和扬程需求变化，选配投入运行的水泵或泵组，并通过改变其频率在运行中使供水设备出口压力保持恒定，满足供水要求。恒压供水系统虽然在一定程度上考虑了用户用水需求，但未兼顾管路阻力变化。实际应用中的管网系统大多表现出明显的时段性在用水高峰期，管网系统用水流量增大，管路阻力较大；在用水低谷时，管网系统流量减少，管路阻力损失也较小，使得末端水压偏高，造成能量冗余，同时增加了管网渗漏和故障率。因此，系统控制和运行方式仍需进一步改进。The water supply mode with constant outlet pressure of the pump based on variable frequency speed regulation technology is the main mode of secondary water supply for buildings at present. This water supply mode selects the pump group according to the maximum calculated flow and calculated head required by the system. The outlet pressure of the pump group is determined according to the pressure required for the maximum water use condition of the whole process. The outlet pressure of the pump group is constant during the whole process of operation. The control system selects the pump or pump group put into operation according to the changes in flow and head requirements, and keeps the outlet pressure of the water supply equipment constant during operation by changing its frequency to meet the water supply requirements. Although the constant pressure water supply system takes into account the user's water demand to a certain extent, it does not take into account the change of pipeline resistance. Most of the pipe network systems in actual applications show obvious periodicity. During the peak water use period, the water flow of the pipe network system increases and the pipeline resistance is large; during the low water use period, the flow of the pipe network system decreases and the pipeline resistance loss is also small, which makes the terminal water pressure high, causing energy redundancy, and at the same time increases the leakage and failure rate of the pipe network. Therefore, the system control and operation mode still need to be further improved.
现阶段二次供水给水系统中采用出口恒压控制技术降低系统能耗是普遍方法，但不是提升系统运行综合能效比的最优方法；At present, it is a common method to use outlet constant pressure control technology to reduce system energy consumption in secondary water supply systems, but it is not the best method to improve the comprehensive energy efficiency ratio of system operation;
针对水泵出口压力恒定存在富余水头浪费的缺点，理论上可以采用管网末端压力恒定的控制方式，实时根据末端压力信号变频调整水泵转速来确保末端压力的稳定。研发一种能解决上述技术问题，确保管网末端恒压控制稳定运行，是实现二次增压供水泵组运行更加节能的关键，因此，针对上述问题提出一种融合管网模型智能算法的节能型泵组运行控制系统。In view of the disadvantage of wasting excess water head when the outlet pressure of the water pump is constant, in theory, a constant pressure control method can be adopted at the end of the pipe network, and the pump speed can be adjusted in real time according to the end pressure signal to ensure the stability of the end pressure. Developing a method that can solve the above technical problems and ensure the stable operation of constant pressure control at the end of the pipe network is the key to achieving more energy-saving operation of the secondary booster water supply pump group. Therefore, in view of the above problems, an energy-saving pump group operation control system integrating the intelligent algorithm of the pipe network model is proposed.
发明内容Summary of the invention
本发明的目的在于提供一种融合管网模型智能算法的节能型泵组运行控制系统,以解决上述背景技术中提出的问题。The purpose of the present invention is to provide an energy-saving pump group operation control system that integrates an intelligent algorithm of a pipe network model to solve the problems raised in the above-mentioned background technology.
为实现上述目的，本发明提供如下技术方案：To achieve the above object, the present invention provides the following technical solutions:
一种融合管网模型智能算法的节能型泵组运行控制系统，包括：An energy-saving pump group operation control system integrating the intelligent algorithm of the pipe network model, comprising:
数据采集模块：数据采集模块包括出口压力检测、出口流量检测、末端压力监测和水箱液位检测；出口压力检测对给水系统运行机组出水端的水压进行检测；出口流量检测对给水系统运行机组出水端的流量进行检测；末端压力监测检测供水区域中最不利点楼栋的所需监测点的末端压力数据；水箱液位检测采集楼栋的水箱液位；Data acquisition module: The data acquisition module includes outlet pressure detection, outlet flow detection, terminal pressure monitoring and water tank level detection; outlet pressure detection detects the water pressure at the outlet of the water supply system operating unit; outlet flow detection detects the flow at the outlet of the water supply system operating unit; terminal pressure monitoring detects the terminal pressure data of the required monitoring point of the most unfavorable building in the water supply area; water tank level detection collects the water tank level of the building;
边缘计算模块：边缘计算模块包括管网模型计算单元、目标压力计算单元、波动过滤计算单元和数据储存及通讯单元；管网模型计算单元接收出口压力检测、出口流量检测、末端压力监测和水箱液位检测得到的数据后，按照时间轴线分别生成出口压力曲线、出口流量曲线和末端压力曲线，提取末端压力曲线中的压力数值从低到高进行排列，形成末端压力增长线，提取对应末端压力曲线中压力数值的出口压力数值，将出口压力数值并入末端压力增长线的压力数值中，建立管网压力模型，构建小区虚拟用水增长线，根据虚拟用水增长线中的用水数值计算出口流量数值，并将出口流量数值合并至虚拟用水增长线中对应的用水数值中，建立管网流量模型；目标压力计算单元接收用水量预测、泵组出口流量、出口压力及最不利点所需压力的指标数据后，结合管网压力模型和管网流量模型计算出当前所需的目标控制压力；波动过滤计算单元接收末端压力数据后，根据最不利点布设的不同楼层的压力数据进行加权平均，得出最不利点的压力均值，完成波动过滤计算；数据储存及通讯单元接收管网压力模型和管网流量模型、实时液位监控、出口压力数据、出口流量数据、最不利点压力监测数据和最不利点的压力均值进行储存，同时，将上述数据同步上传到运行监控平台；Edge computing module: The edge computing module includes a pipe network model calculation unit, a target pressure calculation unit, a fluctuation filtering calculation unit and a data storage and communication unit; after the pipe network model calculation unit receives the data obtained from the outlet pressure detection, outlet flow detection, terminal pressure monitoring and water tank liquid level detection, it generates the outlet pressure curve, outlet flow curve and terminal pressure curve according to the time axis, extracts the pressure values in the terminal pressure curve and arranges them from low to high to form a terminal pressure growth line, extracts the outlet pressure value corresponding to the pressure value in the terminal pressure curve, merges the outlet pressure value into the pressure value of the terminal pressure growth line, establishes a pipe network pressure model, constructs a virtual water use growth line for the community, calculates the outlet flow value according to the water use value in the virtual water use growth line, and converts the outlet flow value into the outlet flow value. The value is merged into the corresponding water usage value in the virtual water usage growth line to establish a pipe network flow model; after the target pressure calculation unit receives the water consumption forecast, pump group outlet flow, outlet pressure and the index data of the pressure required at the most unfavorable point, it combines the pipe network pressure model and the pipe network flow model to calculate the current required target control pressure; after the fluctuation filtering calculation unit receives the terminal pressure data, it performs weighted averaging according to the pressure data of different floors arranged at the most unfavorable point, obtains the mean pressure of the most unfavorable point, and completes the fluctuation filtering calculation; the data storage and communication unit receives the pipe network pressure model and the pipe network flow model, real-time liquid level monitoring, outlet pressure data, outlet flow data, the most unfavorable point pressure monitoring data and the mean pressure of the most unfavorable point for storage, and at the same time, synchronously uploads the above data to the operation monitoring platform;
运行监控平台：运行监控平台包括大数据模块、数据监控、状态预警和远程控制；Operation monitoring platform: The operation monitoring platform includes big data module, data monitoring, status warning and remote control;
大数据模块包括大数据提取、数据整理单元、数据分析单元、变量数据同步和生成供水预测；大数据提取实时接收智能水表的监测数据，生成小区每天的用水数据，后按照给水系统、用户信息和日期对小区用户每天的用水数据进行区域标记、小区用户标记和时间标记；数据整理单元接收小区用户每天的用水数据后，先调取智能水表的监测数据，以时间为轴线生成小区每天的用水曲线，以周为阶段汇总小区每周的用水曲线，生成小区的周用水曲线图谱，后计算每个月的总用水量，并以月为单位生成近一年的用水量曲线；数据分析单元接收用户的周用水曲线图谱和近一年的用水量曲线，提取周用水曲线图谱中每天的用水曲线，根据用水曲线标记的日期标记节假日和非节假日，将标记节假日的数个用水曲线和标记非节假日的数天用水曲线进行统计，计算标记节假日的平均用水曲线和标记非节假日平均用水曲线，以节假日的平均用水曲线和标记非节假日平均用水曲线为标准用水曲线，并根据标准用水曲线波峰分析用水习惯；变量数据同步实时接收来自智能水表提供的数据，提取对应的区域标记、用户标记后，确定用水时的日期，对应日期是否为节假日的判断，确定用水时间，对标记进行统计，生成实时数据包；The big data module includes big data extraction, data sorting unit, data analysis unit, variable data synchronization and generation of water supply forecast; big data extraction receives the monitoring data of the smart water meter in real time, generates the daily water consumption data of the community, and then performs regional marking, community user marking and time marking on the daily water consumption data of the community users according to the water supply system, user information and date; after the data sorting unit receives the daily water consumption data of the community users, it first retrieves the monitoring data of the smart water meter, generates the daily water consumption curve of the community with time as the axis, summarizes the weekly water consumption curve of the community with weeks as stages, generates the weekly water consumption curve map of the community, and then calculates the total water consumption of each month, and generates the water consumption curve of the past year in units of months; the data analysis unit receives the user's weekly water consumption curve The water consumption curve of the weekly water consumption curve is extracted from the daily water consumption curve in the weekly water consumption curve, and holidays and non-holidays are marked according to the dates marked on the water consumption curve. Several water consumption curves marked with holidays and several water consumption curves marked with non-holidays are counted, and the average water consumption curve marked with holidays and the average water consumption curve marked with non-holidays are calculated. The average water consumption curve of holidays and the average water consumption curve marked with non-holidays are used as standard water consumption curves, and water consumption habits are analyzed according to the peaks of the standard water consumption curves; variable data synchronously receives data provided by smart water meters in real time, extracts corresponding area tags and user tags, determines the date of water use, determines whether the corresponding date is a holiday, determines the water use time, counts the tags, and generates real-time data packets;
生成供水预测接收生成实时数据包，提取实时数据包中统计的小区信息，根据信息提取对应的标准用水曲线，提取节假日的平均用水曲线和标记非节假日平均用水曲线，以每10min为时间节点将节假日的平均用水曲线和标记非节假日平均用水曲线进行分区处理，计算实时数据包中每个时间节点的用水量，将每个时间节点的用水量进行汇总，生成供水预测曲线，制得小区用水量预测数据，同步到边缘计算模块；Generate water supply forecast: Receive and generate real-time data packets, extract the statistical cell information in the real-time data packets, extract the corresponding standard water consumption curve according to the information, extract the average water consumption curve of holidays and the average water consumption curve of marked non-holidays, partition the average water consumption curve of holidays and the average water consumption curve of marked non-holidays with every 10 minutes as the time node, calculate the water consumption of each time node in the real-time data packet, summarize the water consumption of each time node, generate a water supply forecast curve, obtain the community water consumption forecast data, and synchronize it to the edge computing module;
数据监控同步接收管网压力模型和管网流量模型、小区用水量预测、实时液位监控、出口压力数据、出口流量数据、最不利点压力监测数据和最不利点的压力均值，对全部数据进行监控；状态预警实时接收监控数据，当监控数据的出现异常时，生成预警信息；Data monitoring synchronously receives the pipe network pressure model and pipe network flow model, community water consumption forecast, real-time liquid level monitoring, outlet pressure data, outlet flow data, the most unfavorable point pressure monitoring data and the average pressure at the most unfavorable point, and monitors all data; status warning receives monitoring data in real time, and generates warning information when abnormal monitoring data appears;
远程控制同步接收管网压力模型和管网流量模型、目标控制压力、最不利点的压力均值、小区用水量预测和实时液位监控后，按照以往数据生成模拟供水方案，同步到执行控制器；After the remote control synchronously receives the pipe network pressure model and pipe network flow model, target control pressure, the average pressure of the most unfavorable point, the community water consumption forecast and real-time liquid level monitoring, it generates a simulated water supply plan according to the previous data and synchronizes it to the execution controller;
执行控制器：执行控制器包括PLC、变频器和智能网关；PLC接收边缘计算模块中的管网压力模型和管网流量模型、用水量预测数据、目标控制压力、实时液位监控、出口压力数据、出口流量数据和最不利点的压力均值后，生成实时供水控制信息，PLC按照实时供水控制信息控制变频器调整给水系统的供水压力。Execution controller: The execution controller includes PLC, frequency converter and intelligent gateway. After receiving the network pressure model and network flow model, water consumption forecast data, target control pressure, real-time liquid level monitoring, outlet pressure data, outlet flow data and the average pressure at the most unfavorable point in the edge computing module, the PLC generates real-time water supply control information. The PLC controls the frequency converter to adjust the water supply pressure of the water supply system according to the real-time water supply control information.
作为一种优选方案，管网模型计算在最初使用时配置初始化管网压力模型和管网流量模型，在后续运行过程中持续采集动态值参数，不断迭代优化该管网压力模型和管网流量模型。As a preferred solution, the pipeline network model calculation configures the initialization pipeline network pressure model and pipeline network flow model when it is first used, continuously collects dynamic value parameters during subsequent operation, and continuously iterates and optimizes the pipeline network pressure model and pipeline network flow model.
作为一种优选方案，数据储存及通讯存储12个月以上的小区用水及压力数据，当最不利点压力变送器故障、断电或网络不通畅等问题时，通过本地存储的历史数据进行特征分析，根据管网模型计算填补缺失时段的供水所需压力值，确保系统持续稳定运行。As a preferred solution, data storage and communication stores community water usage and pressure data for more than 12 months. When the pressure transmitter at the most unfavorable point fails, power is off, or the network is not smooth, feature analysis is performed through locally stored historical data, and the pressure value required to fill the missing period is calculated based on the pipe network model to ensure continuous and stable operation of the system.
作为一种优选方案，预警信息生成后，预警信息同步到执行控制器，PLC接收预警信息后，接入模拟供水方案，按照模拟供水方案控制给水系统供水。As a preferred solution, after the warning information is generated, the warning information is synchronized to the execution controller. After the PLC receives the warning information, it accesses the simulated water supply plan and controls the water supply of the water supply system according to the simulated water supply plan.
作为一种优选方案，PLC接收边缘计算模块中的管网压力模型和管网流量模型、用水量预测数据、目标控制压力、实时液位监控、出口压力数据、出口流量数据和最不利点的压力均值后，具体的，调取最不利点的压力均值和用水量预测数据，先提取用水量预测数据中的供水预测曲线，将供水预测曲线中各时间节点的供水量数值带入管网流量模型中，提取对应各供水量数值的供水出口流量数值后生成实时出口流量曲线，再根据最不利点的压力均值带入管网压力模型中，调取管网压力模型中与最不利点的压力均值最接近的末端压力数值，确定与最接近末端压力数值对应的出口压力数值确定为实时出口压力数值，根据实时出口压力数值和实时出口流量曲线控制给水系统运行机组进行供水。As a preferred solution, after the PLC receives the pipe network pressure model and pipe network flow model, water consumption prediction data, target control pressure, real-time liquid level monitoring, outlet pressure data, outlet flow data and the average pressure of the most unfavorable point in the edge computing module, specifically, the average pressure of the most unfavorable point and the water consumption prediction data are retrieved, the water supply prediction curve in the water consumption prediction data is first extracted, the water supply value of each time node in the water supply prediction curve is brought into the pipe network flow model, the water supply outlet flow value corresponding to each water supply value is extracted to generate a real-time outlet flow curve, and then the pressure average value of the most unfavorable point is brought into the pipe network pressure model, the terminal pressure value closest to the pressure average of the most unfavorable point in the pipe network pressure model is retrieved, the outlet pressure value corresponding to the closest terminal pressure value is determined as the real-time outlet pressure value, and the water supply system operating unit is controlled to supply water according to the real-time outlet pressure value and the real-time outlet flow curve.
由上述本发明提供的技术方案可以看出，本发明提供的一种融合管网模型智能算法的节能型泵组运行控制系统，有益效果是：It can be seen from the technical solution provided by the present invention that the energy-saving pump group operation control system provided by the present invention which integrates the intelligent algorithm of the pipe network model has the following beneficial effects:
1、通过设置运行监管平台，利用大数据分析住户的用水情况，根据用水情况预测住户未来的用水情况，为边缘计算模块提供供水基础数据，边缘计算模块包括管网模型计算、目标压力计算和波动过滤计算，管网模型计算单元根据给水系统运行机组的出口流量、出口压力、末端压力等参数实时迭代计算管网压力模型和管网流量模型，目标压力计算和波动过滤计算确定计算最不利点的压力均值和实时出口流量曲线后，将最不利点的压力均值和实时出口流量曲线后带入管网压力模型和管网流量模型中，形成执行控制器的实时控制信息，执行控制器根据实时控制信息对给水系统运行机组进行控制，满足住户用水的同时，弥补了存在富余水头浪费的缺点，实现二次供水增压泵组高效节能；1. By setting up an operation supervision platform, big data is used to analyze the water use of residents, and the future water use of residents is predicted based on the water use situation, providing basic water supply data for the edge computing module. The edge computing module includes pipe network model calculation, target pressure calculation and fluctuation filtering calculation. The pipe network model calculation unit iteratively calculates the pipe network pressure model and pipe network flow model in real time according to the parameters such as the outlet flow, outlet pressure, and terminal pressure of the water supply system operating unit. After the target pressure calculation and fluctuation filtering calculation determine the pressure mean value and real-time outlet flow curve of the most unfavorable point, the pressure mean value and real-time outlet flow curve of the most unfavorable point are brought into the pipe network pressure model and pipe network flow model to form real-time control information of the execution controller. The execution controller controls the water supply system operating unit according to the real-time control information, which not only meets the water use of residents, but also makes up for the disadvantage of waste of surplus water head, and realizes high efficiency and energy saving of the secondary water supply booster pump group;
2、末端恒压供水相较于水泵出口恒压供水，由于流量大小与管路水头损失大小成平方倍关系，因此流量大时管路水损较大，流量小时管路水损较小，因此可以使水泵根据不同流量调节出口压力，避免了恒压供水在流量小时产生能量浪费的情况。2. Compared with the constant pressure water supply at the pump outlet, the constant pressure water supply at the end has a square relationship with the head loss in the pipeline. Therefore, the water loss in the pipeline is greater when the flow rate is large, and the water loss in the pipeline is smaller when the flow rate is small. Therefore, the water pump can adjust the outlet pressure according to different flow rates, avoiding the situation where energy waste is caused by constant pressure water supply when the flow rate is small.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本发明一种融合管网模型智能算法的节能型泵组运行控制系统整体结构示意图。FIG1 is a schematic diagram of the overall structure of an energy-saving pump group operation control system that integrates an intelligent algorithm of a pipe network model according to the present invention.
具体实施方式Detailed ways
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
为了更好地理解上述技术方案，下面将结合说明书附图以及具体实施方式对上述技术方案进行详细的说明。In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
如图1所示，本发明实施例提供一种融合管网模型智能算法的节能型泵组运行控制系统，包括数据采集模块、边缘计算模块、运行监控平台和执行控制器；As shown in FIG1 , an embodiment of the present invention provides an energy-saving pump group operation control system integrating a pipe network model intelligent algorithm, including a data acquisition module, an edge computing module, an operation monitoring platform and an execution controller;
数据采集模块包括出口压力检测、出口流量检测、末端压力监测和水箱液位检测；The data acquisition module includes outlet pressure detection, outlet flow detection, terminal pressure monitoring and water tank level detection;
出口压力检测对给水系统运行机组出水端的水压进行检测，检测数据每10s采集一次；The outlet pressure test is to test the water pressure at the outlet of the running unit of the water supply system, and the test data is collected every 10 seconds;
出口流量检测对给水系统运行机组出水端的流量进行检测，检测数据每10s采集一次；The outlet flow detection is to detect the flow at the outlet of the running unit of the water supply system, and the detection data is collected every 10 seconds;
末端压力监测检测供水区域中最不利点楼栋的所需监测点的末端压力数据，检测数据每10s采集一次；The terminal pressure monitoring detects the terminal pressure data of the required monitoring point of the most unfavorable building in the water supply area, and the detection data is collected every 10 seconds;
水箱液位检测采集楼栋的水箱液位，检测数据每10s采集一次；The water tank level detection collects the water tank level of the building, and the detection data is collected every 10 seconds;
出口压力检测、出口流量检测、末端压力监测和水箱液位检测在同一时间点进行同步采集。Outlet pressure detection, outlet flow detection, terminal pressure monitoring and water tank level detection are collected synchronously at the same time point.
边缘计算模块包括管网模型计算单元、目标压力计算单元、波动过滤计算单元和数据储存及通讯单元；The edge computing module includes a pipe network model computing unit, a target pressure computing unit, a fluctuation filtering computing unit, and a data storage and communication unit;
管网模型计算单元根据小区实际建筑情况：总户数、建筑楼层及高度、供水管径、供水长度等，计算拟合管网基础模型。系统投入运行以后，根据采集末端压力变化自动迭代校正管网模型，确保管网模型能准确适应管网系统的变化，确保末端供水压力的稳定。同时接收出口压力检测、出口流量检测、末端压力监测和水箱液位检测得到的数据后，按照时间轴线分别生成出口压力曲线、出口流量曲线和末端压力曲线，提取末端压力曲线中的压力数值从低到高进行排列，形成末端压力增长线，提取对应末端压力曲线中压力数值的出口压力数值，将出口压力数值并入末端压力增长线的压力数值中，建立管网压力模型，构建小区虚拟用水增长线，根据虚拟用水增长线中的用水数值计算出口流量数值，并将出口流量数值合并至虚拟用水增长线中对应的用水数值中，建立管网流量模型；The pipe network model calculation unit calculates and fits the basic pipe network model according to the actual construction conditions of the community: total number of households, building floors and heights, water supply pipe diameter, water supply length, etc. After the system is put into operation, the pipe network model is automatically iterated and corrected according to the changes in the collected terminal pressure to ensure that the pipe network model can accurately adapt to the changes in the pipe network system and ensure the stability of the terminal water supply pressure. After receiving the data obtained from the outlet pressure detection, outlet flow detection, terminal pressure monitoring and water tank level detection at the same time, the outlet pressure curve, outlet flow curve and terminal pressure curve are generated according to the time axis respectively, and the pressure values in the terminal pressure curve are extracted and arranged from low to high to form a terminal pressure growth line. The outlet pressure value corresponding to the pressure value in the terminal pressure curve is extracted, and the outlet pressure value is incorporated into the pressure value of the terminal pressure growth line to establish a pipe network pressure model, construct a virtual water use growth line for the community, calculate the outlet flow value according to the water use value in the virtual water use growth line, and merge the outlet flow value into the corresponding water use value in the virtual water use growth line to establish a pipe network flow model;
进一步，管网模型计算在最初使用时配置初始化管网压力模型和管网流量模型，在后续运行过程中持续采集动态值参数，不断迭代优化该管网压力模型和管网流量模型；Furthermore, the pipe network model calculation configures and initializes the pipe network pressure model and the pipe network flow model when it is first used, continuously collects dynamic value parameters during subsequent operation, and continuously iterates and optimizes the pipe network pressure model and the pipe network flow model;
波动过滤计算单元接收末端压力数据后，根据最不利点布设的不同楼层的压力数据进行加权平均，得出最不利点的压力均值，完成波动过滤计算；After receiving the terminal pressure data, the fluctuation filtering calculation unit performs weighted average according to the pressure data of different floors arranged at the most unfavorable point, obtains the mean pressure value of the most unfavorable point, and completes the fluctuation filtering calculation;
目标压力计算单元接收用水量预测、泵组出口流量、出口压力及最不利点所需压力的指标数据后，结合管网压力模型、管网流量模型计算出当前所需的目标控制压力；After receiving the water consumption forecast, the pump group outlet flow, the outlet pressure and the index data of the pressure required at the most unfavorable point, the target pressure calculation unit calculates the current required target control pressure in combination with the pipe network pressure model and the pipe network flow model;
数据储存及通讯单元接收管网压力模型和管网流量模型、实时液位监控、出口压力数据、出口流量数据、最不利点压力监测数据和最不利点的压力均值进行储存，同时，将上述数据同步上传到运行监控平台，具体的，数据储存及通讯存储12个月以上的小区用水及压力数据，当最不利点压力变送器故障、断电或网络不通畅等问题时，通过本地存储的历史数据进行特征分析，根据管网模型计算填补缺失时段的供水所需压力值，确保系统持续稳定运行。The data storage and communication unit receives the pipe network pressure model and pipe network flow model, real-time liquid level monitoring, outlet pressure data, outlet flow data, the most unfavorable point pressure monitoring data and the average pressure at the most unfavorable point for storage. At the same time, the above data are synchronously uploaded to the operation monitoring platform. Specifically, the data storage and communication store the community water use and pressure data for more than 12 months. When the pressure transmitter at the most unfavorable point fails, power is off or the network is not smooth, the characteristics are analyzed through the locally stored historical data, and the pressure value required for water supply to fill the missing period is calculated according to the pipe network model to ensure the continuous and stable operation of the system.
运行监控平台：运行监控平台包括大数据模块、数据监控、状态预警和远程控制；Operation monitoring platform: The operation monitoring platform includes big data module, data monitoring, status warning and remote control;
大数据模块包括大数据提取、数据整理单元、数据分析单元、变量数据同步和生成供水预测；大数据提取实时接收智能水表的监测数据，生成小区每天的用水数据，后按照给水系统、用户信息和日期对小区用户每天的用水数据进行区域标记、小区用户标记和时间标记；数据整理单元接收小区用户每天的用水数据后，先调取智能水表的监测数据，以时间为轴线生成小区每天的用水曲线，以周为阶段汇总小区每周的用水曲线，生成小区的周用水曲线图谱，后计算每个月的总用水量，并以月为单位生成近一年的用水量曲线；数据分析单元接收用户的周用水曲线图谱和近一年的用水量曲线，提取周用水曲线图谱中每天的用水曲线，根据用水曲线标记的日期标记节假日和非节假日，将标记节假日的数个用水曲线和标记非节假日的数天用水曲线进行统计，计算标记节假日的平均用水曲线和标记非节假日平均用水曲线，以节假日的平均用水曲线和标记非节假日平均用水曲线为标准用水曲线，并根据标准用水曲线波峰分析用水习惯；变量数据同步实时接收来自智能水表提供的数据，提取对应的区域标记、用户标记后，确定用水时的日期，对应日期是否为节假日的判断，确定用水时间，对标记进行统计，生成实时数据包；The big data module includes big data extraction, data sorting unit, data analysis unit, variable data synchronization and generation of water supply forecast; big data extraction receives the monitoring data of the smart water meter in real time, generates the daily water consumption data of the community, and then performs regional marking, community user marking and time marking on the daily water consumption data of the community users according to the water supply system, user information and date; after the data sorting unit receives the daily water consumption data of the community users, it first retrieves the monitoring data of the smart water meter, generates the daily water consumption curve of the community with time as the axis, summarizes the weekly water consumption curve of the community with weeks as stages, generates the weekly water consumption curve map of the community, and then calculates the total water consumption of each month, and generates the water consumption curve of the past year in units of months; the data analysis unit receives the user's weekly water consumption curve The water consumption curve of the weekly water consumption curve is extracted from the daily water consumption curve in the weekly water consumption curve, and holidays and non-holidays are marked according to the dates marked on the water consumption curve. Several water consumption curves marked with holidays and several water consumption curves marked with non-holidays are counted, and the average water consumption curve marked with holidays and the average water consumption curve marked with non-holidays are calculated. The average water consumption curve of holidays and the average water consumption curve marked with non-holidays are used as standard water consumption curves, and water consumption habits are analyzed according to the peaks of the standard water consumption curves; variable data synchronously receives data provided by smart water meters in real time, extracts corresponding area tags and user tags, determines the date of water use, determines whether the corresponding date is a holiday, determines the water use time, counts the tags, and generates real-time data packets;
生成供水预测接收生成实时数据包，提取实时数据包中统计的小区信息，根据信息提取对应的标准用水曲线，提取节假日的平均用水曲线和标记非节假日平均用水曲线，以每10min为时间节点将节假日的平均用水曲线和标记非节假日平均用水曲线进行分区处理，计算实时数据包中每个时间节点的用水量，将每个时间节点的用水量进行汇总，生成供水预测曲线，制得小区用水量预测数据，同步到边缘计算模块；Generate water supply forecast: Receive and generate real-time data packets, extract the statistical cell information in the real-time data packets, extract the corresponding standard water consumption curve according to the information, extract the average water consumption curve of holidays and the average water consumption curve of marked non-holidays, partition the average water consumption curve of holidays and the average water consumption curve of marked non-holidays with every 10 minutes as the time node, calculate the water consumption of each time node in the real-time data packet, summarize the water consumption of each time node, generate a water supply forecast curve, obtain the community water consumption forecast data, and synchronize it to the edge computing module;
数据监控同步接收管网压力模型和管网流量模型、小区用水量预测、实时液位监控、出口压力数据、出口流量数据、最不利点压力监测数据和最不利点的压力均值，对全部数据进行监控；状态预警实时接收监控数据，当监控数据的出现异常时，生成预警信息；Data monitoring synchronously receives the pipe network pressure model and pipe network flow model, community water consumption forecast, real-time liquid level monitoring, outlet pressure data, outlet flow data, the most unfavorable point pressure monitoring data and the average pressure at the most unfavorable point, and monitors all data; status warning receives monitoring data in real time, and generates warning information when abnormal monitoring data appears;
远程控制同步接收管网压力模型和管网流量模型、目标控制压力、最不利点的压力均值、小区用水量预测和实时液位监控后，按照以往数据生成模拟供水方案，同步到执行控制器。After the remote control synchronously receives the pipe network pressure model and pipe network flow model, the target control pressure, the average pressure at the most unfavorable point, the community water consumption forecast and the real-time liquid level monitoring, it generates a simulated water supply plan according to the previous data and synchronizes it to the execution controller.
执行控制器包括PLC、变频器和智能网关；PLC接收边缘计算模块中的管网压力模型和管网流量模型、用水量预测数据、目标控制压力、实时液位监控、出口压力数据、出口流量数据和最不利点的压力均值后，生成实时供水控制信息，PLC按照实时供水控制信息控制变频器调整给水系统的供水压力；The execution controller includes a PLC, a frequency converter and an intelligent gateway. After receiving the pipe network pressure model and pipe network flow model, water consumption forecast data, target control pressure, real-time liquid level monitoring, outlet pressure data, outlet flow data and the average pressure value at the most unfavorable point in the edge computing module, the PLC generates real-time water supply control information. The PLC controls the frequency converter to adjust the water supply pressure of the water supply system according to the real-time water supply control information.
具体的，PLC接收边缘计算模块中的管网压力模型和管网流量模型、用水量预测数据、目标控制压力、实时液位监控、出口压力数据、出口流量数据和最不利点的压力均值后，具体的，调取最不利点的压力均值和用水量预测数据，先提取用水量预测数据中的供水预测曲线，将供水预测曲线中各时间节点的供水量数值带入管网流量模型中，提取对应各供水量数值的供水出口流量数值后生成实时出口流量曲线，再根据最不利点的压力均值带入管网压力模型中，调取管网压力模型中与最不利点的压力均值最接近的末端压力数值，确定与最接近末端压力数值对应的出口压力数值确定为实时出口压力数值，根据实时出口压力数值和实时出口流量曲线控制给水系统运行机组进行供水；Specifically, after the PLC receives the pipe network pressure model and pipe network flow model, water consumption prediction data, target control pressure, real-time liquid level monitoring, outlet pressure data, outlet flow data and the average pressure of the most unfavorable point in the edge computing module, specifically, the average pressure of the most unfavorable point and the water consumption prediction data are retrieved, the water supply prediction curve in the water consumption prediction data is first extracted, the water supply value of each time node in the water supply prediction curve is brought into the pipe network flow model, the water supply outlet flow value corresponding to each water supply value is extracted to generate a real-time outlet flow curve, and then the pressure average value of the most unfavorable point is brought into the pipe network pressure model, the terminal pressure value closest to the pressure average of the most unfavorable point in the pipe network pressure model is retrieved, the outlet pressure value corresponding to the closest terminal pressure value is determined as the real-time outlet pressure value, and the water supply system operating unit is controlled to supply water according to the real-time outlet pressure value and the real-time outlet flow curve;
进一步，PLC先控制给水系统运行机组将给水系统运行机组的出口压力升高至实时出口压力数值，后根据实时出口流量曲线的出口流量进行供水。Furthermore, the PLC first controls the operating unit of the water supply system to increase the outlet pressure of the operating unit of the water supply system to the real-time outlet pressure value, and then supplies water according to the outlet flow of the real-time outlet flow curve.
本实施例中，给水系统运行机组包括单台小泵和数个大泵，给水系统运行机组的变频控制流程包括以下步骤：In this embodiment, the water supply system operating unit includes a single small pump and several large pumps, and the frequency conversion control process of the water supply system operating unit includes the following steps:
S1、初始化时，泵组处于停机保压状态；S1. During initialization, the pump group is in the shutdown and pressure-maintaining state;
S2、当出水压力小于设置压力时，单台小泵运行，当出水流量持续减低时，泵组恢复到停机保压状态；S2. When the outlet water pressure is lower than the set pressure, a single small pump will operate. When the outlet water flow rate continues to decrease, the pump unit will return to the shutdown and pressure maintenance state.
S3、当小泵全频运行时仍无法满足供水需求时，计算实时所需目标压力，当目标压力超过单台小泵的供给的压力值时，启动单台大泵运行，单台小泵停止运行；S3. When the small pump still cannot meet the water supply demand when running at full frequency, calculate the real-time target pressure. When the target pressure exceeds the pressure value supplied by a single small pump, start the single large pump and stop the single small pump.
S4、当单台大泵全频运行仍无法满足供水需求时，再次计算实时所需目标压力，当目标压力满足两台大泵的驱动条件时，启动两台大泵运行，当目标压力不足两台大泵的启动条件时，启动一大一小两个泵运行，一大一小两个泵运行仍无法满足供水需求时，启动两台大泵运行；S4. When the full-frequency operation of a single large pump still cannot meet the water supply demand, the real-time target pressure is calculated again. When the target pressure meets the driving conditions of the two large pumps, the two large pumps are started. When the target pressure is less than the starting conditions of the two large pumps, two pumps, one large and one small, are started. When the operation of the two pumps, one large and one small, still cannot meet the water supply demand, the two large pumps are started.
S5、按照时间间歇性计算实时所需目标压力，根据目标压力重新进行S4操作。S5. Calculate the target pressure required in real time intermittently according to the time, and repeat the S4 operation according to the target pressure.
本实施例中，PLC在对给水系统运行机组控制过程中，实时接收末端压力数据，且与最不利点的压力均值对比，当末端压力数据高过最不利点的压力均值时，降低给水系统运行机组的供给功率，当末端压力数据低于最不利点的压力均值时，升高给水系统运行机组的供给功率。In this embodiment, during the control of the water supply system operating units, the PLC receives the terminal pressure data in real time and compares it with the pressure average at the most unfavorable point. When the terminal pressure data is higher than the pressure average at the most unfavorable point, the supply power of the water supply system operating units is reduced. When the terminal pressure data is lower than the pressure average at the most unfavorable point, the supply power of the water supply system operating units is increased.
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
| Application Number | Priority Date | Filing Date | Title |
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| CN202410295928.0ACN117891206B (en) | 2024-03-15 | 2024-03-15 | Energy-saving pump set operation control system integrating pipe network model intelligent algorithm |
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| CN202410295928.0ACN117891206B (en) | 2024-03-15 | 2024-03-15 | Energy-saving pump set operation control system integrating pipe network model intelligent algorithm |
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| CN117891206Btrue CN117891206B (en) | 2024-05-28 |
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| CN202410295928.0AActiveCN117891206B (en) | 2024-03-15 | 2024-03-15 | Energy-saving pump set operation control system integrating pipe network model intelligent algorithm |
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