WO2023280306A1 - Control method and apparatus for centralized cooling/heating system - Google Patents

Control method and apparatus for centralized cooling/heating system Download PDF

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Publication number
WO2023280306A1
WO2023280306A1 PCT/CN2022/104625 CN2022104625W WO2023280306A1 WO 2023280306 A1 WO2023280306 A1 WO 2023280306A1 CN 2022104625 W CN2022104625 W CN 2022104625W WO 2023280306 A1 WO2023280306 A1 WO 2023280306A1
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Prior art keywords
terminal
heating system
cooling
centralized cooling
power
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PCT/CN2022/104625
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French (fr)
Chinese (zh)
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谷泽竑
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谷泽竑
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Publication of WO2023280306A1 publication Critical patent/WO2023280306A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

Definitions

  • the invention relates to the field of heating and ventilation, in particular to a control method and device for a centralized cooling/heating system.
  • some centralized cooling/heating systems have introduced a new control method on this basis, that is, based on the temperature difference between the output and return medium to achieve a constant temperature for the output working medium. Closed-loop control, this method can effectively reduce the energy waste of fixed power work, but there is still room for optimization in this method, and because the lower end of the centralized cooling/heating system is generally rarely closed actively, especially when there are many system users , the volume of the circulating medium increases, and its specific heat capacity increases accordingly.
  • the load decreases, the temperature difference between the output and return medium changes very slowly, and the work of the system does not match the actual demand, which makes it difficult for the constant temperature closed-loop control to play its advantages, resulting in energy loss. It is wasteful, and the user's experience is affected due to the overheating and cooling of the user terminal.
  • the technical problem to be solved by the present invention Aiming at the above-mentioned problems of the prior art, a control method and device for a centralized cooling/heating system are provided.
  • the constant temperature closed-loop control mode of the output working fluid based on the temperature difference between the output and return flow, it can achieve instantaneous response, thus effectively saving energy waste during the transition period of the constant temperature closed-loop control mode, with good energy-saving effect and good versatility advantage.
  • a control method for a centralized cooling/heating system comprising:
  • step 1) includes obtaining the working state F i of each terminal i respectively, and determining the required power P i corresponding to the terminal i according to the working state F i .
  • the working state F i of each terminal refers to the normal open or energy-saving state
  • the energy-saving state refers to the closed state or the heat preservation state.
  • the step of determining the power P i0 corresponding to the current working condition of the terminal i includes: detecting the current ambient temperature and the parameter setting of the current working condition of the terminal i, and the parameter setting of the current working condition of the terminal i includes temperature, One or more of the air volume and performance mode, query the preset power mapping table according to the ambient temperature and the parameters of the current working condition of the terminal i to obtain the power P i0 corresponding to the current working condition of the terminal i.
  • the power mapping table contains The mapping between different ambient temperatures, the parameters of the current working condition of terminal i, and the power P i0 corresponding to terminal i; or obtain the measured power P i0 of the cold and heat meter corresponding to terminal i at the current moment.
  • determining the required power P i corresponding to each terminal i in step 1) refers to receiving the required power P i of the terminal i sent by the terminal control unit of each terminal i .
  • the calculation function expression of the total demand power P in step 2) is:
  • ⁇ i is the weight coefficient of terminal i
  • P i is the demand power of terminal i
  • n is the total number of terminals
  • ⁇ is the loss coefficient of the pipe network
  • P s is the loss of the pipe network
  • the steps of ⁇ i include: detecting the temperature difference between the output working fluid temperature T out of the centralized cooling/heating system and the current measured temperature T i of terminal i, and querying the preset weight coefficient according to the temperature difference and the pipe network structure parameters of terminal i
  • the weight coefficient ⁇ i of terminal i is obtained from the table, and the preset weight coefficient table contains the mapping between different temperature differences and pipe network structure parameters of terminal i, and the weight coefficient ⁇ i of terminal i, and the pipe network structure of terminal i
  • the parameters include one or more of pipe network length, pipe network diameter, pipe network volume, pipe network material, and pipe network insulation material performance parameters.
  • the terminal control unit of each terminal automatically controlling the working state F i of each terminal: the terminal control unit detects whether there is no user in the corresponding area of the terminal, and the working state F i of the terminal; if there is no user in the corresponding area of the terminal If the working status F i of the user and the terminal is turned on, the terminal is automatically closed, and the working status F i of the terminal is set to an energy-saving state.
  • Whether there is no user in the corresponding area of the terminal refers to detecting the no-user status flag and according to The no-user state flag judges whether there is no user in the corresponding area of the terminal, and the no-user state flag is that the terminal control unit performs state modification based on the detection signal of an external sensor, and the sensor includes an RFID card reader, a trigger button, and a WiFi probe. one or more of .
  • the present invention also provides a control device for a centralized cooling/heating system, comprising an interconnected microprocessor and a memory, the microprocessor being programmed or configured to perform the control of said centralized cooling/heating system method steps.
  • the present invention also provides a computer-readable storage medium, in which a computer program programmed or configured to execute the control method of the centralized cooling/heating system is stored.
  • the present invention also provides a control device for a centralized cooling/heating system, which includes a master control unit and a plurality of terminal control units corresponding to the terminals one by one.
  • the master control unit communicates with each terminal through a wired or wireless network. Units are connected, and the master control unit is also connected to the total cold and heat meter of the centralized cooling/heating system and each branch cold and heat meter downstream of the total cold and heat meter through a wired or wireless network.
  • the present invention has the following advantages:
  • the present invention sums the demanded power P i of each terminal i and then adds the pipe network loss to obtain the current total demanded power P, and takes the total demanded power P as the target to control the centralized cooling/heating system for the current cooling Or heating working conditions can effectively reduce the energy waste of fixed power work, and compared with the constant temperature closed-loop control method based on the output and return working fluid temperature difference to the output working fluid, it can achieve instantaneous response, thus effectively saving It eliminates energy waste during the transition period of the constant temperature closed-loop control mode, and has the advantage of good energy saving effect.
  • the method of the present invention is not only applicable to centralized cooling/heating systems including central air-conditioning, centralized heating (heating) systems, etc., which include the main terminal system and multiple terminals, but also to centralized supply systems that only include a single terminal.
  • the cooling/warming system has the advantages of good versatility and wide application range.
  • Fig. 1 is a schematic flow diagram of the basic process of the method of the embodiment of the present invention.
  • Fig. 2 is a comparison curve of the output function of the embodiment method of the present invention and the existing constant temperature closed-loop control method.
  • Fig. 3 is a schematic diagram of the basic structure of the device of the embodiment of the present invention.
  • Fig. 4 is an installation layout diagram of the total cold and heat meter and its downstream branch cold and heat meters in the embodiment of the present invention.
  • control method of the centralized cooling/heating system in this embodiment includes:
  • the centralized cooling/heating system refers to a split air conditioner for cooling or a wall-hung boiler for heating;
  • Fig. 2 is a comparison curve of the output function between the method of this embodiment and the existing constant temperature closed-loop control method, where t is time, and P is the actual output power.
  • the existing constant temperature closed-loop control method realizes the constant temperature closed-loop control of the output working fluid based on the temperature difference between the output and the return flow, and the influence of the change of the working state corresponding to the terminal i on the temperature difference of the return flow working medium will be There is a slow process, so the output power of the total end system will also have a slow decline process, as shown in t 0 ⁇ t 1 in Figure 2, and the curve of its output power is shown in curve a.
  • the actual output power is actually greater than the actual demand of each terminal, because the total terminal system realizes the constant temperature closed-loop control of the output working fluid based on the temperature difference between the output and return working fluid, which cannot The power demand corresponding to terminal i is obtained, so the energy waste during time t 0 -t 1 is caused.
  • the current total demand power P is obtained by summing the demand power P i of each terminal i and then adding the pipe network loss, and taking the total demand power P as the target control
  • the centralized cooling/heating system does work for the current cooling or heating conditions, and its output power curve is shown in curve b.
  • the power demand corresponding to terminal i can be obtained, it can achieve instantaneous response and adjust to meet the demand
  • the output power of the power matching effectively saves energy waste during the transition period of the constant temperature closed-loop control mode, and has the advantage of good energy saving effect.
  • step 1) in this embodiment includes obtaining the working state F i of each terminal i respectively, and determining the required power P i corresponding to the terminal i according to the working state F i .
  • the working state F i of each terminal can be divided into different levels of load conditions according to needs, so that different levels of demand power mapping can be realized.
  • the working state F i of each terminal in this embodiment refers to the normal open or energy-saving state
  • the energy-saving state refers to the closed state or the heat preservation state
  • the required power P i corresponding to the terminal i is determined.
  • the working state F i of terminal i is the energy-saving state
  • determine that the required power P i of terminal i is the preset power corresponding to the energy-saving state (can be set according to actual needs); if the working state F i of terminal i is normal is turned on, then the required power P i of terminal i is determined to be the power P i0 corresponding to the current working condition of terminal i.
  • the power P i0 corresponding to the current working condition of terminal i can be set according to needs, for example, it can be set to a larger constant value, so as to meet the requirements of different load conditions and ensure sufficient supply of power.
  • the step of determining the power P i0 corresponding to the current working condition of the terminal i in this embodiment includes: detecting the current ambient temperature and the parameter setting of the current working condition of the terminal i, the current working condition of the terminal i
  • the parameter setting of the condition includes one or more of temperature, air volume, and performance mode. According to the ambient temperature and the parameters of the current working condition of terminal i, query the preset power mapping table to obtain the power P i0 corresponding to the current working condition of terminal i.
  • the power mapping table contains the mapping between different ambient temperatures and parameters of the current working condition of terminal i, and the power P i0 corresponding to terminal i, and the terminal
  • the power P i0 corresponding to i can realize the refined calculation of the required power, and it is also simple and easy.
  • the calculation function expression of the total demand power P in step 2) is:
  • ⁇ i is the weight coefficient of terminal i
  • P i is the required power of terminal i
  • n is the total number of terminals
  • ⁇ is the loss coefficient of the pipe network
  • P s is the loss of the pipe network.
  • the pipe network loss P s can be calibrated as a constant after a pre-test, and can also be measured by a cold and heat meter (cold and heat meter), which can directly or indirectly realize the cooling and heat Corresponding power meter.
  • the total cooling and heat meter can be installed on the output main pipeline, and the branch cooling and heat meters can be installed in each branch downstream of the main pipeline to collect the total cooling and heat meter and each branch downstream of the total cooling and heat meter respectively.
  • the detection power of the total cooling and heat meters is subtracted from the sum of the detection powers of each branch cooling and heat meters downstream of the total cooling and heat meters to obtain the pipe network loss P s , which
  • the method is more accurate and real-time than the method calibrated as a constant.
  • the step of the weight coefficient ⁇ i of any terminal i in this embodiment includes: detecting the output working fluid temperature T out of the centralized cooling/heating system, and the current measured temperature of the terminal i The temperature difference between T i , according to the temperature difference and the pipe network structure parameters of terminal i, query the preset weight coefficient table to obtain the weight coefficient ⁇ i of terminal i, and the preset weight coefficient table contains different temperature differences and pipe network structures of terminal i Parameters, the mapping between the weight coefficient ⁇ i of the terminal i, the pipe network structure parameters
  • the pipe network loss coefficient ⁇ can also be obtained by querying the preset weight coefficient table according to the output working fluid temperature T out of the centralized cooling/heating system, the temperature difference between the return flow temperature, and the pipe network structure parameters of the working medium output pipeline
  • the pipe network loss coefficient ⁇ can also realize accurate correction of the pipe network loss P s and realize accurate energy saving.
  • this embodiment also includes the step of automatically controlling the working state F i of each end by the end control unit of each end: end The control unit detects whether there is no user in the corresponding area of the terminal, and the working state F i of the terminal; if there is no user in the corresponding area of the terminal and the working state F i of the terminal is on, the terminal is automatically closed, and the working state F i of the terminal is turned off automatically.
  • the terminal control unit performs state modification based on detection signals of external sensors, and the sensors include one or more of RFID identification units, trigger buttons, and WiFi probes.
  • the no-user state flag is initially no user, if any of the RFID identification unit, trigger button, and WiFi probe is triggered, it is set to have a user, and if any of the RFID identification unit, trigger button, and WiFi probe is triggered again, it is set to For no user, multiple sensor fusion can be easily realized through the user-free status mark, so that the user detection is more comprehensive and accurate, and the energy-saving effect of the centralized cooling/heating system is more significant.
  • the terminal control unit in this embodiment also monitors the working status of the designated equipment and the size of the working medium flow of the designated equipment.
  • the designated equipment is in a non-working state, if the size of the working medium flow of the specified equipment is greater than the first safety setting value, then the specified equipment is closed or the supply valve or switch of the working medium flow of the specified equipment is closed, and an alarm is given, wherein the specified equipment is Electric equipment, gas equipment or water equipment, the working medium flow is electric current, air flow or water flow.
  • the working medium flow of electric equipment is electric current;
  • the working medium flow of gas equipment is airflow, which can be gas or non-gas;
  • the working medium flow of water equipment is water flow.
  • the terminal control unit in this embodiment also includes when the designated device is in working condition:
  • this embodiment also provides a control device for a centralized cooling/heating system, including a microprocessor and a memory connected to each other, the microprocessor is programmed or configured to perform the control of the aforementioned centralized cooling/heating system method steps.
  • this embodiment also provides a computer-readable storage medium, in which a computer program programmed or configured to execute the control method of the aforementioned centralized cooling/heating system is stored.
  • this embodiment also provides a control device for a centralized cooling/heating system, including a master control unit and a plurality of terminal control units corresponding to the terminals one by one, and the master control unit communicates with each other through a wired or wireless network
  • Each terminal control unit is connected, and the master control unit is also connected to the total cooling and heat meter of the centralized cooling/heating system and each branch cooling and heat meter downstream of the total cooling and heat meter through a wired or wireless network, as shown in Figure 4.
  • the master control unit is programmed or configured to execute the steps of the control method for the aforementioned centralized cooling/heating system, or the terminal control unit is programmed or configured to execute the aforementioned control method for the centralized cooling/heating system A step of.
  • the master control unit refers to the control system of the front end (master control end) of the control device of the centralized cooling/heating system, which is mainly used to control the cooling/heating working components of the control device of the centralized cooling/heating system Doing work, such as boiler control system, central air-conditioning system host controller, wall-hung boiler host controller, etc.
  • each branch cold and heat meter downstream of the main cold and heat meter can be one-to-one with each end to realize the measurement of the measured power of each end, or it can not be one-to-one with the end only for the detection of pipe network loss , which can be selected according to the actual situation of the project.
  • This embodiment is basically the same as Embodiment 1, and the main difference is that the determination of the required power P i corresponding to each terminal i in step 1) refers to the required power P i of the terminal i sent by the terminal control unit receiving each terminal i .
  • the resource consumption of the master control unit can be reduced through the required power P i of the terminal i sent by the terminal control unit of each terminal i, and the required power P i corresponding to each terminal i in the centralized cooling/heating system can also be obtained.
  • this embodiment also provides a control device for a centralized cooling/heating system, including a microprocessor and a memory connected to each other, the microprocessor is programmed or configured to perform the control of the aforementioned centralized cooling/heating system method steps.
  • this embodiment also provides a computer-readable storage medium, in which a computer program programmed or configured to execute the control method of the aforementioned centralized cooling/heating system is stored.
  • this embodiment also provides a control device for a centralized cooling/heating system, including a master control unit and a plurality of terminal control units corresponding to the terminals one by one, and the master control unit communicates with each other through a wired or wireless network
  • Each terminal control unit is connected, and the master control unit is also connected to the total cooling and heat meter of the centralized cooling/heating system and each branch cooling and heat meter downstream of the total cooling and heat meter through a wired or wireless network, as shown in Figure 4. shows that the master control unit is programmed or configured to execute the steps of the control method for the aforementioned centralized cooling/heating system, or the terminal control unit is programmed or configured to execute the aforementioned control method for the centralized cooling/heating system A step of.
  • Embodiment 2 This embodiment is basically the same as Embodiment 1, and the main difference is: the centralized cooling/heating system only includes an extreme case of one end i, in this case, in step 2), the required power P i of each end i Adding the sum and then adding the pipe network loss to obtain the current total demand power P refers to directly adding the demand power P i of the terminal i to the pipe network loss to obtain the current total demand power P.
  • the calculation function expression of the total demand power P in step 2) is:
  • ⁇ i is the weight coefficient of terminal i
  • P i is the required power of terminal i
  • ⁇ is the loss coefficient of the pipe network
  • P s is the loss of the pipe network.
  • this embodiment also provides a control device for a centralized cooling/heating system, including a microprocessor and a memory connected to each other, the microprocessor is programmed or configured to perform the control of the aforementioned centralized cooling/heating system method steps.
  • this embodiment also provides a computer-readable storage medium, in which a computer program programmed or configured to execute the control method of the aforementioned centralized cooling/heating system is stored.
  • this embodiment also provides a control device for a centralized cooling/heating system, including a master control unit and a plurality of terminal control units corresponding to the terminals one by one, and the master control unit communicates with each other through a wired or wireless network
  • Each terminal control unit is connected, and the master control unit is also connected to the total cooling and heat meter of the centralized cooling/heating system and each branch cooling and heat meter downstream of the total cooling and heat meter through a wired or wireless network, as shown in Figure 4. shows that the master control unit is programmed or configured to execute the steps of the control method for the aforementioned centralized cooling/heating system, or the terminal control unit is programmed or configured to execute the aforementioned control method for the centralized cooling/heating system A step of.
  • This embodiment is basically the same as Embodiment 1, and the main difference is: considering that the parameter adjustment of the working condition of the terminal will be quickly reflected on the metering power of the cold and heat meter corresponding to the terminal i, the following terminal is adopted in this embodiment
  • the step of determining the power P i0 corresponding to the current working condition of i obtaining the measured power P i0 of the cold and heat meter corresponding to the terminal i at the current moment.
  • the detection of the required power is more convenient. Accurate and real-time.
  • this embodiment also provides a control device for a centralized cooling/heating system, including a microprocessor and a memory connected to each other, the microprocessor is programmed or configured to perform the control of the aforementioned centralized cooling/heating system method steps.
  • this embodiment also provides a computer-readable storage medium, in which a computer program programmed or configured to execute the control method of the aforementioned centralized cooling/heating system is stored.
  • this embodiment also provides a control device for a centralized cooling/heating system, including a master control unit and a plurality of terminal control units corresponding to the terminals one by one, and the master control unit communicates with each other through a wired or wireless network
  • Each terminal control unit is connected, and the master control unit is also connected to the total cooling and heat meter of the centralized cooling/heating system and each branch cooling and heat meter downstream of the total cooling and heat meter through a wired or wireless network, as shown in Figure 4. shows that the master control unit is programmed or configured to execute the steps of the control method for the aforementioned centralized cooling/heating system, or the terminal control unit is programmed or configured to execute the aforementioned control method for the centralized cooling/heating system A step of.
  • the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
  • the present application is described with reference to flowcharts and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application.
  • each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions.
  • These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby
  • the instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

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Abstract

A control method and apparatus for a centralized cooling/heating system. The method comprises: acquiring a required power Pi corresponding to each tail end i in a centralized cooling/heating system, wherein the centralized cooling/heating system includes one or more tail ends i; summing up the required powers Pi of the tail ends i, and then adding same to a pipe network loss to obtain the current total required power P; and taking the total required power P as a target to control the centralized cooling/heating system to do work for the current cooling or heating working condition. The method can effectively reduce energy waste problems due to work being done at a fixed power; compared with a constant-temperature closed-loop control method, based on a temperature difference between an output working medium and a flowing-back working medium, for the output working medium, the method can achieve an instantaneous response, thereby effectively reducing energy waste within a transition period of the constant-temperature closed-loop control method; and the method has the advantages of a good energy-saving effect and a good universality.

Description

一种集中式供冷/暖***的控制方法及装置A control method and device for a centralized cooling/heating system
相关申请在交叉引用Related applications are cross-referenced at
本申请以申请日为“2021-07-09”、申请号为“202110780392.8”、发明创造名称为“一种集中式供冷/暖***的控制方法及装置”的中国专利申请为基础，并主张其优先权，该中国专利申请的全文在此引用至本申请中，以作为本申请的一部分。This application is based on the Chinese patent application with the filing date of "2021-07-09", the application number of "202110780392.8", and the invention titled "A Control Method and Device for a Centralized Cooling/Heating System", and claims Its priority, the full text of the Chinese patent application is hereby incorporated into this application as a part of this application.
【技术领域】【Technical field】
本发明涉及暖通领域，具体涉及一种集中式供冷/暖***的控制方法及装置。The invention relates to the field of heating and ventilation, in particular to a control method and device for a centralized cooling/heating system.
【背景技术】【Background technique】
目前暖通领域，对于包括中央空调、集中供暖***在内的各类集中式供冷/暖***而言，其一般采用特定的工质(例如氟利昂或其他制冷剂、水、空气等)作为媒介，在总端***和各末端之间通过输出管路和回流管路形成回路，以通过对工质进行制冷/热来实现供冷/暖。At present, in the field of heating and ventilation, for various centralized cooling/heating systems including central air conditioning and central heating systems, specific working fluids (such as freon or other refrigerants, water, air, etc.) are generally used as the medium , A loop is formed between the main end system and each end through the output pipeline and the return pipeline to realize cooling/warming by cooling/heating the working fluid.
目前，对于集中式供冷/暖***的控制，最传统的方式为固定功率做功，也就是不论末端的工作状态，总端***只要开启就按照固定功率做功，这种方式由于会导致两个方面的问题，一方面会导致总端***的能源浪费，另一方面由于固定功率做功和末端消耗之间的变化差异会导致工质的温度容易发生波动。但是因为集中式供冷/暖***下末端一般很少会主动关闭，例如某些集中式供冷/暖***因为末端不论是否开启都需要正常付费，所以末端的用户可能不会去主动关闭末端，再加之遗忘的原因，使得固定功率做功的方式大体可用。At present, for the control of centralized cooling/heating systems, the most traditional way is to work with fixed power, that is, regardless of the working status of the terminal, as long as the main terminal system is turned on, it will perform work at a fixed power. This method will lead to two aspects On the one hand, it will lead to the waste of energy in the terminal system, on the other hand, the temperature of the working fluid is prone to fluctuations due to the difference between the fixed power work and the terminal consumption. However, because the lower end of the centralized cooling/heating system is generally rarely closed actively, for example, some centralized cooling/heating systems require normal payment regardless of whether the end is turned on, so the end user may not actively close the end, Coupled with the reason of forgetting, the way of doing work with fixed power is generally available.
考虑到固定功率做功带来的能源浪费问题，目前有些集中式供冷/暖***在此基础上引入了一种新的控制方法，即基于输出、回流的介质温差来实现对输出工质的恒温闭环控制，这种方式确实能够有效减少固定功率做功的能源浪费问题，但是这种方式仍然存在优化空间，而且因为集中式供冷/暖***下末端一般很少会主动关闭，特别是***用户多时，循环介质的体量增大，其比热容随之上升，当负荷下降时，输出、回流的介质温差变化很缓慢，***做功与实际需求不匹配，使得该恒温闭环控制难以发挥优点，导致能源的浪费，且因用户端过冷过热而影响用户的体验感。Considering the energy waste caused by fixed power work, some centralized cooling/heating systems have introduced a new control method on this basis, that is, based on the temperature difference between the output and return medium to achieve a constant temperature for the output working medium. Closed-loop control, this method can effectively reduce the energy waste of fixed power work, but there is still room for optimization in this method, and because the lower end of the centralized cooling/heating system is generally rarely closed actively, especially when there are many system users , the volume of the circulating medium increases, and its specific heat capacity increases accordingly. When the load decreases, the temperature difference between the output and return medium changes very slowly, and the work of the system does not match the actual demand, which makes it difficult for the constant temperature closed-loop control to play its advantages, resulting in energy loss. It is wasteful, and the user's experience is affected due to the overheating and cooling of the user terminal.
【发明内容】【Content of invention】
本发明要解决的技术问题：针对现有技术的上述问题，提供一种集中式供冷/暖***的控制方法及装置，本发明将各个末端i的需求功率P i求和后再加上管网损耗得到当前的总需求功率P，并将总需求功率P作为目标控制集中式供冷/暖***针对当前的制冷或制热工况做功，能够有效减少固定功率做功的能源浪费问题，而且相对基于输出、回流的工质温差对输出工质的恒温闭环控制方式而言，其能够做到瞬时响应，从而有效节约了恒温闭环 控制方式过渡期间的能源浪费，具有节能效果好、通用性好的优点。 The technical problem to be solved by the present invention: Aiming at the above-mentioned problems of the prior art, a control method and device for a centralized cooling/heating system are provided. Network loss to get the current total demand power P, and use the total demand power P as the target to control the centralized cooling/heating system to do work for the current cooling or heating conditions, which can effectively reduce the energy waste of fixed power work, and relatively For the constant temperature closed-loop control mode of the output working fluid based on the temperature difference between the output and return flow, it can achieve instantaneous response, thus effectively saving energy waste during the transition period of the constant temperature closed-loop control mode, with good energy-saving effect and good versatility advantage.
为了解决上述技术问题，本发明采用的技术方案为：In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
一种集中式供冷/暖***的控制方法，包括：A control method for a centralized cooling/heating system, comprising:
1)获取集中式供冷/暖***中各个末端i对应的需求功率P i，所述集中式供冷/暖***中包含一个或多个末端i； 1) Obtain the required power P i corresponding to each terminal i in the centralized cooling/heating system, and the centralized cooling/heating system includes one or more terminals i;
2)将各个末端i的需求功率P i求和后再加上管网损耗得到当前的总需求功率P，并将总需求功率P作为目标控制集中式供冷/暖***针对当前的制冷或制热工况做功。 2) Sum the demand power P i of each terminal i and add the pipe network loss to obtain the current total demand power P, and use the total demand power P as the target to control the centralized cooling/heating system for the current cooling or cooling system. Work done in thermal conditions.
可选地，步骤1)包括分别获取各个末端i的工作状态F i，根据工作状态F i确定末端i对应的需求功率P i。 Optionally, step 1) includes obtaining the working state F i of each terminal i respectively, and determining the required power P i corresponding to the terminal i according to the working state F i .
可选地，所述各个末端的工作状态F i是指正常开启或节能状态，所述节能状态是指关闭状态或者保温状态，所述确定末端i对应的需求功率P i时，若末端i的工作状态F i为节能状态，则确定末端i的需求功率P i为节能状态对应的预设功率；若末端i的工作状态F i为正常开启，则确定末端i的需求功率P i为末端i当前工况所对应的功率P i0。 Optionally, the working state F i of each terminal refers to the normal open or energy-saving state, and the energy-saving state refers to the closed state or the heat preservation state. When determining the required power P i corresponding to the terminal i, if the terminal i If the working state F i is the energy-saving state, then determine the required power P i of the terminal i as the preset power corresponding to the energy-saving state; if the working state F i of the terminal i is normally open, then determine the required power P i of the terminal i The power P i0 corresponding to the current working condition.
可选地，所述末端i当前工况所对应的功率P i0的确定步骤包括：检测当前的环境温度以及末端i当前工况的参数设置，所述末端i当前工况的参数设置包括温度、风量、性能模式中的一种或多种，根据环境温度以及末端i当前工况的参数查询预设的功率映射表获得末端i当前工况所对应的功率P i0，所述功率映射表中包含不同环境温度以及末端i当前工况的参数、末端i对应的功率P i0之间的映射；或者获取末端i对应的冷热量表在当前时刻的计量功率P i0。 Optionally, the step of determining the power P i0 corresponding to the current working condition of the terminal i includes: detecting the current ambient temperature and the parameter setting of the current working condition of the terminal i, and the parameter setting of the current working condition of the terminal i includes temperature, One or more of the air volume and performance mode, query the preset power mapping table according to the ambient temperature and the parameters of the current working condition of the terminal i to obtain the power P i0 corresponding to the current working condition of the terminal i. The power mapping table contains The mapping between different ambient temperatures, the parameters of the current working condition of terminal i, and the power P i0 corresponding to terminal i; or obtain the measured power P i0 of the cold and heat meter corresponding to terminal i at the current moment.
可选地，步骤1)中确定各个末端i对应的需求功率P i是指接收各个末端i的末端控制单元发送的末端i的需求功率P i。 Optionally, determining the required power P i corresponding to each terminal i in step 1) refers to receiving the required power P i of the terminal i sent by the terminal control unit of each terminal i .
可选地，步骤2)中总需求功率P的计算函数表达式为：Optionally, the calculation function expression of the total demand power P in step 2) is:
Figure PCTCN2022104625-appb-000001
Figure PCTCN2022104625-appb-000001
上式中，λ i为末端i的权重系数，P i为末端i的需求功率，n为末端的总数量，λ为管网损耗系数，P s为管网损耗；且任意末端i的权重系数λ i的步骤包括：检测集中式供冷/暖***的输出工质温度T out、末端i的当前实测温度T i之间的温差，根据温差和末端i的管网结构参数查询预设权重系数表获得末端i的权重系数λ i，所述预设权重系数表中包含不同温差和末端i的管网结构参数、末端i的权重系数λ i之间的映射，所述末端i的管网结构参数包括管网长度、管网管径、管网容积、管网材质、管网保温材料性能参数中的一种或多种。 In the above formula, λ i is the weight coefficient of terminal i, P i is the demand power of terminal i, n is the total number of terminals, λ is the loss coefficient of the pipe network, P s is the loss of the pipe network; and the weight coefficient of any end i The steps of λ i include: detecting the temperature difference between the output working fluid temperature T out of the centralized cooling/heating system and the current measured temperature T i of terminal i, and querying the preset weight coefficient according to the temperature difference and the pipe network structure parameters of terminal i The weight coefficient λ i of terminal i is obtained from the table, and the preset weight coefficient table contains the mapping between different temperature differences and pipe network structure parameters of terminal i, and the weight coefficient λ i of terminal i, and the pipe network structure of terminal i The parameters include one or more of pipe network length, pipe network diameter, pipe network volume, pipe network material, and pipe network insulation material performance parameters.
可选地，还包括各个末端的末端控制单元自动控制各个末端的工作状态F i的步骤：末 端控制单元检测该末端对应区域是否无用户，以及末端的工作状态F i；若该末端对应区域无用户、末端的工作状态F i为开启，则自动关闭该末端，并将该末端的工作状态F i设置为节能状态，所述检测该末端对应区域是否无用户是指检测无用户状态标记并根据无用户状态标记判断该末端对应区域是否无用户，所述无用户状态标记为末端控制单元基于外部的传感器的检测信号进行状态修改，所述传感器包括RFID读卡器、触发按钮、WiFi探针中的一种或多种。 Optionally, it also includes the step of the terminal control unit of each terminal automatically controlling the working state F i of each terminal: the terminal control unit detects whether there is no user in the corresponding area of the terminal, and the working state F i of the terminal; if there is no user in the corresponding area of the terminal If the working status F i of the user and the terminal is turned on, the terminal is automatically closed, and the working status F i of the terminal is set to an energy-saving state. Whether there is no user in the corresponding area of the terminal refers to detecting the no-user status flag and according to The no-user state flag judges whether there is no user in the corresponding area of the terminal, and the no-user state flag is that the terminal control unit performs state modification based on the detection signal of an external sensor, and the sensor includes an RFID card reader, a trigger button, and a WiFi probe. one or more of .
此外，本发明还提供一种集中式供冷/暖***的控制装置，包括相互连接的微处理器和存储器，该微处理器被编程或配置以执行所述集中式供冷/暖***的控制方法的步骤。In addition, the present invention also provides a control device for a centralized cooling/heating system, comprising an interconnected microprocessor and a memory, the microprocessor being programmed or configured to perform the control of said centralized cooling/heating system method steps.
此外，本发明还提供一种计算机可读存储介质，该计算机可读存储介质中存储有被编程或配置以执行所述集中式供冷/暖***的控制方法的计算机程序。In addition, the present invention also provides a computer-readable storage medium, in which a computer program programmed or configured to execute the control method of the centralized cooling/heating system is stored.
此外，本发明还提供一种集中式供冷/暖***的控制装置，包括总控单元和多个与末端一一对应的末端控制单元，所述总控单元通过有线或无线网络与各个末端控制单元相连，所述总控单元还分别通过有线或无线网络与集中式供冷/暖***的总冷热量表、总冷热量表下游的各个分支冷热量表相连，所述总控单元被编程或配置以执行所述集中式供冷/暖***的控制方法的步骤，或者所述末端控制单元被编程或配置以执行所述集中式供冷/暖***的控制方法的步骤。In addition, the present invention also provides a control device for a centralized cooling/heating system, which includes a master control unit and a plurality of terminal control units corresponding to the terminals one by one. The master control unit communicates with each terminal through a wired or wireless network. Units are connected, and the master control unit is also connected to the total cold and heat meter of the centralized cooling/heating system and each branch cold and heat meter downstream of the total cold and heat meter through a wired or wireless network. be programmed or configured to execute the steps of the control method of the centralized cooling/heating system, or the terminal control unit is programmed or configured to execute the steps of the control method of the centralized cooling/heating system.
和现有技术相比，本发明具有下述优点：Compared with the prior art, the present invention has the following advantages:
1、本发明将各个末端i的需求功率P i求和后再加上管网损耗得到当前的总需求功率P，并将总需求功率P作为目标控制集中式供冷/暖***针对当前的制冷或制热工况做功，能够有效减少固定功率做功的能源浪费问题，而且相对基于输出、回流的工质温差对输出工质的恒温闭环控制方式而言，其能够做到瞬时响应，从而有效节约了恒温闭环控制方式过渡期间的能源浪费，具有节能效果好的优点。 1. The present invention sums the demanded power P i of each terminal i and then adds the pipe network loss to obtain the current total demanded power P, and takes the total demanded power P as the target to control the centralized cooling/heating system for the current cooling Or heating working conditions can effectively reduce the energy waste of fixed power work, and compared with the constant temperature closed-loop control method based on the output and return working fluid temperature difference to the output working fluid, it can achieve instantaneous response, thus effectively saving It eliminates energy waste during the transition period of the constant temperature closed-loop control mode, and has the advantage of good energy saving effect.
2、本发明方法不仅可以适用于包括中央空调、集中供(采)暖***等包含总端***和多个末端的集中式供冷/暖***，而且也适用于仅包含单个末端的集中式供冷/暖***，具有通用性好、适用范围广的优点。2. The method of the present invention is not only applicable to centralized cooling/heating systems including central air-conditioning, centralized heating (heating) systems, etc., which include the main terminal system and multiple terminals, but also to centralized supply systems that only include a single terminal. The cooling/warming system has the advantages of good versatility and wide application range.
【附图说明】【Description of drawings】
图1为本发明实施例方法的基本流程示意图。Fig. 1 is a schematic flow diagram of the basic process of the method of the embodiment of the present invention.
图2为本发明实施例方法和现有恒温闭环控制方法的输出功能对比曲线。Fig. 2 is a comparison curve of the output function of the embodiment method of the present invention and the existing constant temperature closed-loop control method.
图3为本发明实施例装置的基本结构示意图。Fig. 3 is a schematic diagram of the basic structure of the device of the embodiment of the present invention.
图4为本发明实施例中总冷热量表及其下游各个分支冷热量表的安装布局图。Fig. 4 is an installation layout diagram of the total cold and heat meter and its downstream branch cold and heat meters in the embodiment of the present invention.
【具体实施方式】【detailed description】
实施例一：Embodiment one:
如图1所示，本实施例集中式供冷/暖***的控制方法包括：As shown in Figure 1, the control method of the centralized cooling/heating system in this embodiment includes:
1)获取集中式供冷/暖***中各个末端i对应的需求功率P i，所述集中式供冷/暖***中包含多个末端i；需要说明的是，当集中式供冷/暖***中包含一个末端i时，所述集中式供冷/暖***是指用于供冷的分体空调或用于供暖的壁挂炉； 1) Obtain the required power P i corresponding to each terminal i in the centralized cooling/heating system, which contains multiple terminals i; it should be noted that when the centralized cooling/heating system When a terminal i is included in , the centralized cooling/heating system refers to a split air conditioner for cooling or a wall-hung boiler for heating;
2)将各个末端i的需求功率P i求和后再加上管网损耗得到当前的总需求功率P，并将总需求功率P作为目标控制集中式供冷/暖***针对当前的制冷或制热工况做功。需要说明的是，本实施例方法控制集中式供冷/暖***针对当前的制冷或制热工况做功时，其控制的是制冷或制热的总功率为总需求功率P，制冷或制热的部件可以是一个，也可以是多个，如果涉及多个制冷或制热的部件，则需要将总需求功率P分配给多个制冷或制热的部件。 2) Sum the demand power P i of each terminal i and add the pipe network loss to obtain the current total demand power P, and use the total demand power P as the target to control the centralized cooling/heating system for the current cooling or cooling system. Work done in thermal conditions. It should be noted that when the method in this embodiment controls the centralized cooling/heating system to perform work for the current cooling or heating working conditions, it controls that the total power of cooling or heating is the total required power P, and cooling or heating There can be one component or multiple components. If multiple cooling or heating components are involved, the total required power P needs to be allocated to multiple cooling or heating components.
图2为本实施例方法和现有恒温闭环控制方法的输出功能对比曲线，其中t为时间，P为实际输出功率。参见图2可知，现有恒温闭环控制方法由于采用了基于输出、回流的工质温差来实现对输出工质的恒温闭环控制，而末端i对应的工作状态变化对回流的工质温差的影响会有一个缓慢的过程，因此使得总端***的输出功率也会有一个缓慢下降的过程，如图2中t 0～t 1所示，其输出功率的曲线如曲线a所示。但是，在t 0～t 1时刻内，实际输出功率实际上是大于各个末端的实际需求的，因为总端***基于输出、回流的工质温差来实现对输出工质的恒温闭环控制，不能够获得末端i对应的功率需求，所以造成了t 0～t 1时刻内的能源浪费。而本实施例集中式供冷/暖***的控制方法，将各个末端i的需求功率P i求和后再加上管网损耗得到当前的总需求功率P，并将总需求功率P作为目标控制集中式供冷/暖***针对当前的制冷或制热工况做功，其输出功率的曲线如曲线b所示，由于能够获得末端i对应的功率需求，所以能够做到瞬时响应，调整为与需求功率匹配的输出功率，从而有效节约了恒温闭环控制方式过渡期间的能源浪费，具有节能效果好的优点。 Fig. 2 is a comparison curve of the output function between the method of this embodiment and the existing constant temperature closed-loop control method, where t is time, and P is the actual output power. Referring to Figure 2, it can be seen that the existing constant temperature closed-loop control method realizes the constant temperature closed-loop control of the output working fluid based on the temperature difference between the output and the return flow, and the influence of the change of the working state corresponding to the terminal i on the temperature difference of the return flow working medium will be There is a slow process, so the output power of the total end system will also have a slow decline process, as shown in t 0 ~ t 1 in Figure 2, and the curve of its output power is shown in curve a. However, during the time between t 0 and t 1 , the actual output power is actually greater than the actual demand of each terminal, because the total terminal system realizes the constant temperature closed-loop control of the output working fluid based on the temperature difference between the output and return working fluid, which cannot The power demand corresponding to terminal i is obtained, so the energy waste during time t 0 -t 1 is caused. However, in the control method of the centralized cooling/heating system in this embodiment, the current total demand power P is obtained by summing the demand power P i of each terminal i and then adding the pipe network loss, and taking the total demand power P as the target control The centralized cooling/heating system does work for the current cooling or heating conditions, and its output power curve is shown in curve b. Since the power demand corresponding to terminal i can be obtained, it can achieve instantaneous response and adjust to meet the demand The output power of the power matching effectively saves energy waste during the transition period of the constant temperature closed-loop control mode, and has the advantage of good energy saving effect.
作为一种可选的实施方式，本实施例中步骤1)包括分别获取各个末端i的工作状态F i，根据工作状态F i确定末端i对应的需求功率P i。 As an optional implementation, step 1) in this embodiment includes obtaining the working state F i of each terminal i respectively, and determining the required power P i corresponding to the terminal i according to the working state F i .
需要说明的是，各个末端的工作状态F i可以根据需要划分不同等级的负荷工况，从而可实现不同等级的需求功率映射。作为一种可选的实施例方式，本实施例中各个末端的工作状态F i是指正常开启或节能状态，所述节能状态是指关闭状态或者保温状态，确定末端i对应的需求功率P i时，若末端i的工作状态F i为节能状态，则确定末端i的需求功率P i为节能状态对应的预设功率(可以根据实际需要进行设置)；若末端i的工作状态F i为正常开启，则确定末端i的需求功率P i为末端i当前工况所对应的功率P i0。 It should be noted that the working state F i of each terminal can be divided into different levels of load conditions according to needs, so that different levels of demand power mapping can be realized. As an optional embodiment, the working state F i of each terminal in this embodiment refers to the normal open or energy-saving state, and the energy-saving state refers to the closed state or the heat preservation state, and the required power P i corresponding to the terminal i is determined. , if the working state F i of terminal i is the energy-saving state, then determine that the required power P i of terminal i is the preset power corresponding to the energy-saving state (can be set according to actual needs); if the working state F i of terminal i is normal is turned on, then the required power P i of terminal i is determined to be the power P i0 corresponding to the current working condition of terminal i.
毫无疑问，末端i当前工况所对应的功率P i0可以根据需要进行设置，例如可设置为一 个较大的常数值，从而满足不同负荷工况的需求，确保功率的充足供给。作为一种可选的实施方式，本实施例中末端i当前工况所对应的功率P i0的确定步骤包括：检测当前的环境温度以及末端i当前工况的参数设置，所述末端i当前工况的参数设置包括温度、风量、性能模式中的一种或多种，根据环境温度以及末端i当前工况的参数查询预设的功率映射表获得末端i当前工况所对应的功率P i0，所述功率映射表中包含不同环境温度以及末端i当前工况的参数、末端i对应的功率P i0之间的映射，通过上述基于当前的环境温度以及末端i当前工况的参数设置来获取末端i对应的功率P i0，能够实现需求功率的精细化计算，也简单易行。 Undoubtedly, the power P i0 corresponding to the current working condition of terminal i can be set according to needs, for example, it can be set to a larger constant value, so as to meet the requirements of different load conditions and ensure sufficient supply of power. As an optional implementation, the step of determining the power P i0 corresponding to the current working condition of the terminal i in this embodiment includes: detecting the current ambient temperature and the parameter setting of the current working condition of the terminal i, the current working condition of the terminal i The parameter setting of the condition includes one or more of temperature, air volume, and performance mode. According to the ambient temperature and the parameters of the current working condition of terminal i, query the preset power mapping table to obtain the power P i0 corresponding to the current working condition of terminal i. The power mapping table contains the mapping between different ambient temperatures and parameters of the current working condition of terminal i, and the power P i0 corresponding to terminal i, and the terminal The power P i0 corresponding to i can realize the refined calculation of the required power, and it is also simple and easy.
本实施例中，步骤2)中总需求功率P的计算函数表达式为：In this embodiment, the calculation function expression of the total demand power P in step 2) is:
Figure PCTCN2022104625-appb-000002
Figure PCTCN2022104625-appb-000002
上式中，λ i为末端i的权重系数，P i为末端i的需求功率，n为末端的总数量，λ为管网损耗系数，P s为管网损耗，考虑到由于损耗以及集中式供冷/暖***自身的特性，使得集中式供冷/暖***的输出功能和末端i的需求功率P i、管网损耗P s并非线性关系，本实施例中通过上述权重系数λ i、损耗系数λ的设置，可实现对末端i的需求功率P i、管网损耗P s的修正。 In the above formula, λ i is the weight coefficient of terminal i, P i is the required power of terminal i, n is the total number of terminals, λ is the loss coefficient of the pipe network, and P s is the loss of the pipe network. Considering the loss and centralized Due to the characteristics of the cooling/heating system itself, the output function of the centralized cooling/heating system has no linear relationship with the demand power P i of terminal i and the loss of the pipe network P s . In this embodiment, the above weight coefficient λ i and loss The setting of the coefficient λ can realize the correction of the required power P i and the pipe network loss P s of the terminal i.
需要说明的是，管网损耗P s既可以预先进行试验后标定为常数，此外也可以通过冷热量表(冷热计量表)来进行计量，冷热量表可直接或间接实现冷热量对应的功率计量。如图4所示，可通过在输出主管路安装总冷热量表，主管路下游的各个支路分别安装分支冷热量表，分别采集总冷热量表、总冷热量表下游的各个分支冷热量表的计量功率，将总冷热量表的检测功率减去总冷热量表下游的各个分支冷热量表的检测功率之和，就可以得到管网损耗P s，这种方式相对标定为常数的方式而言更加准确和实时。 It should be noted that the pipe network loss P s can be calibrated as a constant after a pre-test, and can also be measured by a cold and heat meter (cold and heat meter), which can directly or indirectly realize the cooling and heat Corresponding power meter. As shown in Figure 4, the total cooling and heat meter can be installed on the output main pipeline, and the branch cooling and heat meters can be installed in each branch downstream of the main pipeline to collect the total cooling and heat meter and each branch downstream of the total cooling and heat meter respectively. For the metering power of the branch cooling and heat meters, the detection power of the total cooling and heat meters is subtracted from the sum of the detection powers of each branch cooling and heat meters downstream of the total cooling and heat meters to obtain the pipe network loss P s , which The method is more accurate and real-time than the method calibrated as a constant.
需要说明的是，上述权重系数λ i、损耗系数λ就可以根据需要采用常数，例如取值范围在1左右的常数，此外也可以根据需要进行计算以实现精确节能。考虑到温差越大，则热损耗越大，而且热损耗和末端i的管网结构参数(管网长度、管网管径、管网容积、管网材质、管网保温材料性能参数)也直接相关，因此作为一种可选的实施方式，本实施例中任意末端i的权重系数λ i的步骤包括：检测集中式供冷/暖***的输出工质温度T out、末端i的当前实测温度T i之间的温差，根据温差和末端i的管网结构参数查询预设权重系数表获得末端i的权重系数λ i，所述预设权重系数表中包含不同温差和末端i的管网结构参数、末端i的权重系数λ i之间的映射，所述末端i的管网结构参数包括管网长度、管网管径、管网容积、管网材质、管网保温材料性能参数中的一种或多种，通过温差和末端i的管网结构参数的映射，可提高对末端i的需求功率P i的精确修正，实现精确节能。此外，管网损 耗系数λ同样也可以根据集中式供冷/暖***的输出工质温度T out、回流温度之间的温差、工质输出管路的管网结构参数查询预设权重系数表获得管网损耗系数λ，同样也可以实现对管网损耗P s的精确修正，实现精确节能。 It should be noted that the above weight coefficient λ i and loss coefficient λ can be constants according to needs, for example, constants with a value range of about 1, and can also be calculated according to needs to achieve accurate energy saving. Considering that the greater the temperature difference, the greater the heat loss, and the heat loss and the pipe network structure parameters (pipe network length, pipe diameter, pipe network volume, pipe network material, pipe network insulation material performance parameters) of the end i are also directly Therefore, as an optional implementation, the step of the weight coefficient λ i of any terminal i in this embodiment includes: detecting the output working fluid temperature T out of the centralized cooling/heating system, and the current measured temperature of the terminal i The temperature difference between T i , according to the temperature difference and the pipe network structure parameters of terminal i, query the preset weight coefficient table to obtain the weight coefficient λ i of terminal i, and the preset weight coefficient table contains different temperature differences and pipe network structures of terminal i Parameters, the mapping between the weight coefficient λ i of the terminal i, the pipe network structure parameters of the terminal i include one of the pipe network length, pipe network diameter, pipe network volume, pipe network material, and pipe network insulation material performance parameters One or more types, through the mapping of the temperature difference and the pipe network structure parameters of the terminal i, the accurate correction of the required power P i of the terminal i can be improved, and accurate energy saving can be realized. In addition, the pipe network loss coefficient λ can also be obtained by querying the preset weight coefficient table according to the output working fluid temperature T out of the centralized cooling/heating system, the temperature difference between the return flow temperature, and the pipe network structure parameters of the working medium output pipeline The pipe network loss coefficient λ can also realize accurate correction of the pipe network loss P s and realize accurate energy saving.
考虑到现有集中式供冷/暖***下末端一般很少会主动关闭，为了实现主动节能，本实施例中还包括各个末端的末端控制单元自动控制各个末端的工作状态F i的步骤：末端控制单元检测该末端对应区域是否无用户，以及末端的工作状态F i；若该末端对应区域无用户、末端的工作状态F i为开启，则自动关闭该末端，并将该末端的工作状态F i设置为节能状态(关闭状态或者保温状态)，所述检测该末端对应区域是否无用户是指检测无用户状态标记并根据无用户状态标记判断该末端对应区域是否无用户，所述无用户状态标记为末端控制单元基于外部的传感器的检测信号进行状态修改，传感器包括RFID识别单元、触发按钮、WiFi探针中的一种或多种。例如，无用户状态标记初始为无用户，若RFID识别单元、触发按钮、WiFi探针中任意被触发则设置为有用户，若RFID识别单元、触发按钮、WiFi探针中任意再次被触发则设置为无用户，通过无用户状态标记可方便实现多种传感器融合，从而使得用户检测更加全面和准确，使得集中式供冷/暖***的节能效果更加显著。 Considering that the lower end of the existing centralized cooling/heating system is generally rarely closed actively, in order to realize active energy saving, this embodiment also includes the step of automatically controlling the working state F i of each end by the end control unit of each end: end The control unit detects whether there is no user in the corresponding area of the terminal, and the working state F i of the terminal; if there is no user in the corresponding area of the terminal and the working state F i of the terminal is on, the terminal is automatically closed, and the working state F i of the terminal is turned off automatically. i is set to an energy-saving state (closed state or heat preservation state), and whether there is no user in the corresponding area of the terminal refers to detecting the user-free state mark and judging whether the corresponding area of the end has no user according to the user-free state mark, and the user-free state It is marked that the terminal control unit performs state modification based on detection signals of external sensors, and the sensors include one or more of RFID identification units, trigger buttons, and WiFi probes. For example, the no-user state flag is initially no user, if any of the RFID identification unit, trigger button, and WiFi probe is triggered, it is set to have a user, and if any of the RFID identification unit, trigger button, and WiFi probe is triggered again, it is set to For no user, multiple sensor fusion can be easily realized through the user-free status mark, so that the user detection is more comprehensive and accurate, and the energy-saving effect of the centralized cooling/heating system is more significant.
作为一种可选的实施方式，本实施例中末端控制单元还包括监测指定的设备的工作状态以及该指定的设备的工作介质流的大小，在该指定的设备处于非工作状态时，若该指定的设备的工作介质流的大小大于第一安全设定值，则将该指定的设备关闭或者将该指定的设备的工作介质流的供给阀门或供给开关关闭，并报警，其中指定的设备为用电设备、用气设备或用水设备，所述工作介质流为电流、气流或水流。具体地，用电设备的工作介质流为电流；用气设备的工作介质流为气流，该气流可以为燃气或非燃气；用水设备的工作介质流为水流。As an optional implementation, the terminal control unit in this embodiment also monitors the working status of the designated equipment and the size of the working medium flow of the designated equipment. When the designated equipment is in a non-working state, if the If the size of the working medium flow of the specified equipment is greater than the first safety setting value, then the specified equipment is closed or the supply valve or switch of the working medium flow of the specified equipment is closed, and an alarm is given, wherein the specified equipment is Electric equipment, gas equipment or water equipment, the working medium flow is electric current, air flow or water flow. Specifically, the working medium flow of electric equipment is electric current; the working medium flow of gas equipment is airflow, which can be gas or non-gas; the working medium flow of water equipment is water flow.
作为一种可选的实施方式，本实施例中末端控制单元还包括在该指定的设备处于工作状态时：As an optional implementation, the terminal control unit in this embodiment also includes when the designated device is in working condition:
若该末端对应区域有用户，若该指定的设备的工作介质流的大小大于第二安全设定值，则将该指定的设备关闭或者将该指定的设备的工作介质流的供给阀门或供给开关关闭，并报警；If there is a user in the area corresponding to the end, if the size of the working medium flow of the designated equipment is greater than the second safety setting value, the designated equipment is closed or the supply valve or supply switch of the working medium flow of the designated equipment is closed. close, and alarm;
若该末端对应区域无用户，若该指定的设备位于预设的关闭清单中，则将该指定的设备关闭或者将该指定的设备的工作介质流的供给阀门或供给开关关闭，并报警，否则若该指定的设备的工作介质流的大小大于第二安全设定值，则将该指定的设备关闭或者将该指定的设备的工作介质流的供给阀门或供给开关关闭，并报警。If there is no user in the area corresponding to the terminal, and if the designated equipment is in the preset shutdown list, shut down the designated equipment or close the supply valve or switch of the working medium flow of the designated equipment, and give an alarm, otherwise If the size of the working medium flow of the specified equipment is greater than the second safety set value, the specified equipment is closed or the supply valve or switch of the working medium flow of the specified equipment is closed, and an alarm is given.
此外，本实施例还提供一种集中式供冷/暖***的控制装置，包括相互连接的微处理器 和存储器，该微处理器被编程或配置以执行前述集中式供冷/暖***的控制方法的步骤。In addition, this embodiment also provides a control device for a centralized cooling/heating system, including a microprocessor and a memory connected to each other, the microprocessor is programmed or configured to perform the control of the aforementioned centralized cooling/heating system method steps.
此外，本实施例还提供一种计算机可读存储介质，该计算机可读存储介质中存储有被编程或配置以执行前述集中式供冷/暖***的控制方法的计算机程序。In addition, this embodiment also provides a computer-readable storage medium, in which a computer program programmed or configured to execute the control method of the aforementioned centralized cooling/heating system is stored.
如图3所示，本实施例还提供一种集中式供冷/暖***的控制装置，包括总控单元和多个与末端一一对应的末端控制单元，总控单元通过有线或无线网络与各个末端控制单元相连，总控单元还分别通过有线或无线网络与集中式供冷/暖***的总冷热量表、总冷热量表下游的各个分支冷热量表相连，如图4所示，所述总控单元被编程或配置以执行前述集中式供冷/暖***的控制方法的步骤，或者所述末端控制单元被编程或配置以执行前述集中式供冷/暖***的控制方法的步骤。其中，总控单元是指集中式供冷/暖***的控制装置的前端(总控端)的控制***，主要用于控制集中式供冷/暖***的控制装置的供冷/暖做功部件进行做功，例如锅炉控制***、中央空调***主机控制器，壁挂炉的主机控制器等。此外，总冷热量表下游的各个分支冷热量表既可以和各个末端一一对应以实现对各个末端的实测功率的计量，也可以和末端不一一对应仅用于管网损耗的检测，具体可以根据工程实际情况来选择。As shown in Figure 3, this embodiment also provides a control device for a centralized cooling/heating system, including a master control unit and a plurality of terminal control units corresponding to the terminals one by one, and the master control unit communicates with each other through a wired or wireless network Each terminal control unit is connected, and the master control unit is also connected to the total cooling and heat meter of the centralized cooling/heating system and each branch cooling and heat meter downstream of the total cooling and heat meter through a wired or wireless network, as shown in Figure 4. shows that the master control unit is programmed or configured to execute the steps of the control method for the aforementioned centralized cooling/heating system, or the terminal control unit is programmed or configured to execute the aforementioned control method for the centralized cooling/heating system A step of. Among them, the master control unit refers to the control system of the front end (master control end) of the control device of the centralized cooling/heating system, which is mainly used to control the cooling/heating working components of the control device of the centralized cooling/heating system Doing work, such as boiler control system, central air-conditioning system host controller, wall-hung boiler host controller, etc. In addition, each branch cold and heat meter downstream of the main cold and heat meter can be one-to-one with each end to realize the measurement of the measured power of each end, or it can not be one-to-one with the end only for the detection of pipe network loss , which can be selected according to the actual situation of the project.
实施例二：Embodiment two:
本实施例与实施例一基本相同，其主要区别点为：步骤1)中确定各个末端i对应的需求功率P i是指接收各个末端i的末端控制单元发送的末端i的需求功率P i。通过各个末端i的末端控制单元发送的末端i的需求功率P i，可以减少总控单元的资源消耗，同样也可以实现获取集中式供冷/暖***中各个末端i对应的需求功率P i。 This embodiment is basically the same as Embodiment 1, and the main difference is that the determination of the required power P i corresponding to each terminal i in step 1) refers to the required power P i of the terminal i sent by the terminal control unit receiving each terminal i . The resource consumption of the master control unit can be reduced through the required power P i of the terminal i sent by the terminal control unit of each terminal i, and the required power P i corresponding to each terminal i in the centralized cooling/heating system can also be obtained.
此外，本实施例还提供一种集中式供冷/暖***的控制装置，包括相互连接的微处理器和存储器，该微处理器被编程或配置以执行前述集中式供冷/暖***的控制方法的步骤。In addition, this embodiment also provides a control device for a centralized cooling/heating system, including a microprocessor and a memory connected to each other, the microprocessor is programmed or configured to perform the control of the aforementioned centralized cooling/heating system method steps.
此外，本实施例还提供一种计算机可读存储介质，该计算机可读存储介质中存储有被编程或配置以执行前述集中式供冷/暖***的控制方法的计算机程序。In addition, this embodiment also provides a computer-readable storage medium, in which a computer program programmed or configured to execute the control method of the aforementioned centralized cooling/heating system is stored.
如图3所示，本实施例还提供一种集中式供冷/暖***的控制装置，包括总控单元和多个与末端一一对应的末端控制单元，总控单元通过有线或无线网络与各个末端控制单元相连，总控单元还分别通过有线或无线网络与集中式供冷/暖***的总冷热量表、总冷热量表下游的各个分支冷热量表相连，如图4所示，所述总控单元被编程或配置以执行前述集中式供冷/暖***的控制方法的步骤，或者所述末端控制单元被编程或配置以执行前述集中式供冷/暖***的控制方法的步骤。As shown in Figure 3, this embodiment also provides a control device for a centralized cooling/heating system, including a master control unit and a plurality of terminal control units corresponding to the terminals one by one, and the master control unit communicates with each other through a wired or wireless network Each terminal control unit is connected, and the master control unit is also connected to the total cooling and heat meter of the centralized cooling/heating system and each branch cooling and heat meter downstream of the total cooling and heat meter through a wired or wireless network, as shown in Figure 4. shows that the master control unit is programmed or configured to execute the steps of the control method for the aforementioned centralized cooling/heating system, or the terminal control unit is programmed or configured to execute the aforementioned control method for the centralized cooling/heating system A step of.
实施例三：Embodiment three:
本实施例与实施例一基本相同，其主要区别点为：集中式供冷/暖***仅包含一个末端 i的极端情况，在此情况下，步骤2)中将各个末端i的需求功率P i求和后再加上管网损耗得到当前的总需求功率P是指直接将末端i的需求功率P i加上管网损耗得到当前的总需求功率P。对应地，步骤2)中总需求功率P的计算函数表达式为： This embodiment is basically the same as Embodiment 1, and the main difference is: the centralized cooling/heating system only includes an extreme case of one end i, in this case, in step 2), the required power P i of each end i Adding the sum and then adding the pipe network loss to obtain the current total demand power P refers to directly adding the demand power P i of the terminal i to the pipe network loss to obtain the current total demand power P. Correspondingly, the calculation function expression of the total demand power P in step 2) is:
P＝λ iP i+λP s， P=λ i P i +λ P s ,
上式中，λ i为末端i的权重系数，P i为末端i的需求功率，λ为管网损耗系数，P s为管网损耗。 In the above formula, λ i is the weight coefficient of terminal i, P i is the required power of terminal i, λ is the loss coefficient of the pipe network, and P s is the loss of the pipe network.
此外，本实施例还提供一种集中式供冷/暖***的控制装置，包括相互连接的微处理器和存储器，该微处理器被编程或配置以执行前述集中式供冷/暖***的控制方法的步骤。In addition, this embodiment also provides a control device for a centralized cooling/heating system, including a microprocessor and a memory connected to each other, the microprocessor is programmed or configured to perform the control of the aforementioned centralized cooling/heating system method steps.
此外，本实施例还提供一种计算机可读存储介质，该计算机可读存储介质中存储有被编程或配置以执行前述集中式供冷/暖***的控制方法的计算机程序。In addition, this embodiment also provides a computer-readable storage medium, in which a computer program programmed or configured to execute the control method of the aforementioned centralized cooling/heating system is stored.
如图3所示，本实施例还提供一种集中式供冷/暖***的控制装置，包括总控单元和多个与末端一一对应的末端控制单元，总控单元通过有线或无线网络与各个末端控制单元相连，总控单元还分别通过有线或无线网络与集中式供冷/暖***的总冷热量表、总冷热量表下游的各个分支冷热量表相连，如图4所示，所述总控单元被编程或配置以执行前述集中式供冷/暖***的控制方法的步骤，或者所述末端控制单元被编程或配置以执行前述集中式供冷/暖***的控制方法的步骤。As shown in Figure 3, this embodiment also provides a control device for a centralized cooling/heating system, including a master control unit and a plurality of terminal control units corresponding to the terminals one by one, and the master control unit communicates with each other through a wired or wireless network Each terminal control unit is connected, and the master control unit is also connected to the total cooling and heat meter of the centralized cooling/heating system and each branch cooling and heat meter downstream of the total cooling and heat meter through a wired or wireless network, as shown in Figure 4. shows that the master control unit is programmed or configured to execute the steps of the control method for the aforementioned centralized cooling/heating system, or the terminal control unit is programmed or configured to execute the aforementioned control method for the centralized cooling/heating system A step of.
实施例四：Embodiment four:
本实施例与实施例一基本相同，其主要区别点为：考虑到末端的工况的参数调整会快速反映到末端i对应的冷热量表的计量功率上，本实施例中采用下述末端i当前工况所对应的功率P i0的确定步骤：获取末端i对应的冷热量表当前时刻的计量功率P i0。在这种情况下，就需要每一个末端i都安装一个冷热量表(冷热计量表)，虽然会导致成本的增加，但是相对采用功率映射表的方式而言，其需求功率的检测更加准确和实时。 This embodiment is basically the same as Embodiment 1, and the main difference is: considering that the parameter adjustment of the working condition of the terminal will be quickly reflected on the metering power of the cold and heat meter corresponding to the terminal i, the following terminal is adopted in this embodiment The step of determining the power P i0 corresponding to the current working condition of i: obtaining the measured power P i0 of the cold and heat meter corresponding to the terminal i at the current moment. In this case, it is necessary to install a cold and heat meter (cold and heat meter) at each end i. Although it will lead to an increase in cost, compared with the way of using the power mapping table, the detection of the required power is more convenient. Accurate and real-time.
此外，本实施例还提供一种集中式供冷/暖***的控制装置，包括相互连接的微处理器和存储器，该微处理器被编程或配置以执行前述集中式供冷/暖***的控制方法的步骤。In addition, this embodiment also provides a control device for a centralized cooling/heating system, including a microprocessor and a memory connected to each other, the microprocessor is programmed or configured to perform the control of the aforementioned centralized cooling/heating system method steps.
此外，本实施例还提供一种计算机可读存储介质，该计算机可读存储介质中存储有被编程或配置以执行前述集中式供冷/暖***的控制方法的计算机程序。In addition, this embodiment also provides a computer-readable storage medium, in which a computer program programmed or configured to execute the control method of the aforementioned centralized cooling/heating system is stored.
如图3所示，本实施例还提供一种集中式供冷/暖***的控制装置，包括总控单元和多个与末端一一对应的末端控制单元，总控单元通过有线或无线网络与各个末端控制单元相连，总控单元还分别通过有线或无线网络与集中式供冷/暖***的总冷热量表、总冷热量表下游的各个分支冷热量表相连，如图4所示，所述总控单元被编程或配置以执行前述集中式供冷/暖***的控制方法的步骤，或者所述末端控制单元被编程或配置以执行前述集中式 供冷/暖***的控制方法的步骤。As shown in Figure 3, this embodiment also provides a control device for a centralized cooling/heating system, including a master control unit and a plurality of terminal control units corresponding to the terminals one by one, and the master control unit communicates with each other through a wired or wireless network Each terminal control unit is connected, and the master control unit is also connected to the total cooling and heat meter of the centralized cooling/heating system and each branch cooling and heat meter downstream of the total cooling and heat meter through a wired or wireless network, as shown in Figure 4. shows that the master control unit is programmed or configured to execute the steps of the control method for the aforementioned centralized cooling/heating system, or the terminal control unit is programmed or configured to execute the aforementioned control method for the centralized cooling/heating system A step of.
本领域内的技术人员应明白，本申请的实施例可提供为方法、***、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可读存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。本申请是参照根据本申请实施例的方法、设备(***)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein. The present application is described with reference to flowcharts and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram. These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram. These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.
以上所述仅是本发明的优选实施方式，本发明的保护范围并不仅局限于上述实施例，凡属于本发明思路下的技术方案均属于本发明的保护范围。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理前提下的若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。The above descriptions are only preferred implementations of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention should also be regarded as the protection scope of the present invention.

Claims (13)

  1. 一种集中式供冷/暖***的控制方法，其特征在于，包括：A control method for a centralized cooling/heating system, characterized in that it includes:
    1)获取集中式供冷/暖***中各个末端i对应的需求功率P i，所述集中式供冷/暖***中包含一个或多个末端i； 1) Obtain the required power P i corresponding to each terminal i in the centralized cooling/heating system, and the centralized cooling/heating system includes one or more terminals i;
    2)将各个末端i的需求功率P i求和后再加上管网损耗得到当前的总需求功率P，并将总需求功率P作为目标控制集中式供冷/暖***针对当前的制冷或制热工况做功。 2) Sum the demand power P i of each terminal i and add the pipe network loss to obtain the current total demand power P, and use the total demand power P as the target to control the centralized cooling/heating system for the current cooling or cooling system. Work done in thermal conditions.
  2. 根据权利要求1所述的集中式供冷/暖***的控制方法，其特征在于，步骤1)包括分别获取各个末端i的工作状态F i，根据工作状态F i确定末端i对应的需求功率P i。 The control method of the centralized cooling/heating system according to claim 1, characterized in that step 1) includes obtaining the working state F i of each terminal i respectively, and determining the required power P corresponding to the terminal i according to the working state F i i .
  3. 根据权利要求2所述的集中式供冷/暖***的控制方法，其特征在于，所述各个末端的工作状态F i是指正常开启或节能状态，所述节能状态是指关闭状态或者保温状态，所述确定末端i对应的需求功率P i时，若末端i的工作状态F i为节能状态，则确定末端i的需求功率P i为节能状态对应的预设功率；若末端i的工作状态F i为正常开启，则确定末端i的需求功率P i为末端i当前工况所对应的功率P i0。 The control method of the centralized cooling/heating system according to claim 2, characterized in that, the working state F i of each terminal refers to the normal open or energy-saving state, and the energy-saving state refers to the closed state or the heat preservation state , when determining the required power P i corresponding to the terminal i, if the working state F i of the terminal i is an energy-saving state, then it is determined that the required power P i of the terminal i is the preset power corresponding to the energy-saving state; if the working state of the terminal i If F i is normally turned on, then the required power P i of terminal i is determined to be the power P i0 corresponding to the current working condition of terminal i.
  4. 根据权利要求3所述的集中式供冷/暖***的控制方法，其特征在于，所述末端i当前工况所对应的功率P i0的确定步骤包括：检测当前的环境温度以及末端i当前工况的参数设置，所述末端i当前工况的参数设置包括温度、风量、性能模式中的一种或多种，根据环境温度以及末端i当前工况的参数查询预设的功率映射表获得末端i当前工况所对应的功率P i0，所述功率映射表中包含不同环境温度以及末端i当前工况的参数、末端i对应的功率P i0之间的映射；或者获取末端i对应的冷热量表在当前时刻的计量功率P i0。 The control method of the centralized cooling/heating system according to claim 3, wherein the step of determining the power P i0 corresponding to the current working condition of the terminal i includes: detecting the current ambient temperature and the current working condition of the terminal i The parameter setting of the current working condition of the terminal i includes one or more of temperature, air volume, and performance mode. According to the ambient temperature and the parameters of the current working condition of the terminal i, query the preset power mapping table to obtain the terminal The power P i0 corresponding to the current working condition of i, the power mapping table contains the mapping between different ambient temperatures and the parameters of the current working condition of the terminal i, and the power P i0 corresponding to the terminal i; or obtain the cold and heat corresponding to the terminal i Metering power P i0 of the meter at the current moment.
  5. 根据权利要求1所述的集中式供冷/暖***的控制方法，其特征在于，步骤1)中确定各个末端i对应的需求功率P i是指接收各个末端i的末端控制单元发送的末端i的需求功率P i。 The control method of the centralized cooling/heating system according to claim 1, wherein in step 1), determining the required power Pi corresponding to each terminal i refers to receiving the terminal i sent by the terminal control unit of each terminal i The required power P i .
  6. 根据权利要求1所述的集中式供冷/暖***的控制方法，其特征在于，步骤2)中总需求功率P的计算函数表达式为：The control method of the centralized cooling/heating system according to claim 1, wherein the calculation function expression of the total demand power P in step 2) is:
    Figure PCTCN2022104625-appb-100001
    Figure PCTCN2022104625-appb-100001
    上式中，λ i为末端i的权重系数，P i为末端i的需求功率，n为末端的总数量，λ为管网损耗系数，P s为管网损耗；且任意末端i的权重系数λ i的步骤包括：检测集中式供冷/暖***的输出工质温度T out、末端i的当前实测温度T i之间的温差，根据温差和末端i的管网结构参数查询预设权重系数表获得末端i的权重系数λ i，所述预设权重系数表中包含不同温差和末端i的管网结构参数、末端i的权重系数λ i之间的映射，所述末端i的管网结构参数包括管网长度、管网管径、管网容积、管网材质、管网保温材料性能参数中的一种或 多种。 In the above formula, λ i is the weight coefficient of terminal i, P i is the demand power of terminal i, n is the total number of terminals, λ is the loss coefficient of the pipe network, P s is the loss of the pipe network; and the weight coefficient of any end i The steps of λ i include: detecting the temperature difference between the output working fluid temperature T out of the centralized cooling/heating system and the current measured temperature T i of terminal i, and querying the preset weight coefficient according to the temperature difference and the pipe network structure parameters of terminal i The weight coefficient λ i of terminal i is obtained from the table, and the preset weight coefficient table contains the mapping between different temperature differences and pipe network structure parameters of terminal i, and the weight coefficient λ i of terminal i, and the pipe network structure of terminal i The parameters include one or more of pipe network length, pipe network diameter, pipe network volume, pipe network material, and pipe network insulation material performance parameters.
  7. 根据权利要求2所述的集中式供冷/暖***的控制方法，其特征在于，还包括各个末端的末端控制单元自动控制各个末端的工作状态F i的步骤：末端控制单元检测该末端对应区域是否无用户，以及末端的工作状态F i；若该末端对应区域无用户、末端的工作状态F i为开启，则自动关闭该末端，并将该末端的工作状态F i设置为节能状态，所述检测该末端对应区域是否无用户是指检测无用户状态标记并根据无用户状态标记判断该末端对应区域是否无用户，所述无用户状态标记为末端控制单元基于外部的传感器的检测信号进行状态修改，所述传感器包括RFID识别单元、触发按钮、WiFi探针中的一种或多种。 The control method of the centralized cooling/heating system according to claim 2, further comprising the step of automatically controlling the working state F i of each terminal by the terminal control unit of each terminal: the terminal control unit detects the corresponding area of the terminal Whether there is no user, and the working state F i of the terminal; if there is no user in the corresponding area of the terminal, and the working state F i of the terminal is turned on, then the terminal will be automatically closed, and the working state F i of the terminal will be set to an energy-saving state. The detection of whether there is no user in the terminal corresponding area refers to detecting the no-user state flag and judging whether there is no user in the end corresponding area according to the no-user state flag. As a modification, the sensor includes one or more of an RFID identification unit, a trigger button, and a WiFi probe.
  8. 根据权利要求7所述的集中式供冷/暖***的控制方法，其特征在于，所述末端控制单元还包括监测指定的设备的工作状态以及该指定的设备的工作介质流的大小，在该指定的设备处于非工作状态时，若该指定的设备的工作介质流的大小大于第一安全设定值，则将该指定的设备关闭或者将该指定的设备的工作介质流的供给阀门或供给开关关闭，并报警，所述指定的设备为用电设备、用气设备或用水设备，所述工作介质流为电流、气流或水流。The control method of the centralized cooling/heating system according to claim 7, characterized in that, the terminal control unit also includes monitoring the working state of the specified equipment and the size of the working medium flow of the specified equipment, in which When the specified equipment is in the non-working state, if the size of the working medium flow of the specified equipment is greater than the first safety setting value, the specified equipment will be closed or the supply valve or supply of the working medium flow of the specified equipment will be closed. The switch is turned off and an alarm is given, the designated equipment is electrical equipment, gas equipment or water equipment, and the working medium flow is electric current, air flow or water flow.
  9. 根据权利要求8所述的集中式供冷/暖***的控制方法，其特征在于，所述末端控制单元还包括在该指定的设备处于工作状态时：若该末端对应区域有用户，若该指定的设备的工作介质流的大小大于第二安全设定值，则将该指定的设备关闭或者将该指定的设备的工作介质流的供给阀门或供给开关关闭，并报警；若该末端对应区域无用户，若该指定的设备位于预设的关闭清单中，则将该指定的设备关闭或者将该指定的设备的工作介质流的供给阀门或供给开关关闭，并报警，否则若该指定的设备的工作介质流的大小大于第二安全设定值，则将该指定的设备关闭或者将该指定的设备的工作介质流的供给阀门或供给开关关闭，并报警。The control method of the centralized cooling/heating system according to claim 8, wherein the terminal control unit further includes: when the specified equipment is in working state: if there are users in the corresponding area of the terminal, if the specified If the size of the working medium flow of the specified equipment is greater than the second safety set value, then the specified equipment will be closed or the supply valve or switch of the specified equipment’s working medium flow will be closed, and an alarm will be issued; if there is no The user, if the specified equipment is in the preset shutdown list, then close the specified equipment or close the supply valve or switch of the working medium flow of the specified equipment, and alarm, otherwise if the specified equipment If the size of the working medium flow is greater than the second safety setting value, the designated device is closed or the supply valve or switch of the working medium flow of the designated device is closed, and an alarm is given.
  10. 根据权利要求1所述的集中式供冷/暖***的控制方法，其特征在于，当所述集中式供冷/暖***中包含一个末端i时，所述集中式供冷/暖***是指用于供冷的分体空调或用于供暖的壁挂炉。The control method of the centralized cooling/heating system according to claim 1, characterized in that, when the centralized cooling/heating system includes an end i, the centralized cooling/heating system refers to Split system air conditioners for cooling or wall furnaces for heating.
  11. 一种集中式供冷/暖***的控制装置，包括相互连接的微处理器和存储器，其特征在于，该微处理器被编程或配置以执行权利要求1～10中任意一项所述集中式供冷/暖***的控制方法的步骤。A control device for a centralized cooling/warming system, comprising interconnected microprocessors and memory, characterized in that the microprocessor is programmed or configured to execute the centralized heating system described in any one of claims 1-10. Steps of a control method for a cooling/heating system.
  12. 一种计算机可读存储介质，其特征在于，该计算机可读存储介质中存储有被编程或配置以执行权利要求1～10中任意一项所述集中式供冷/暖***的控制方法的计算机程序。A computer-readable storage medium, characterized in that, the computer-readable storage medium stores a computer programmed or configured to execute the control method of the centralized cooling/heating system described in any one of claims 1-10 program.
  13. 一种集中式供冷/暖***的控制装置，包括总控单元和多个与末端一一对应的末端控制单元，所述总控单元通过有线或无线网络与各个末端控制单元相连，所述总控单元还分别通过有线或无线网络与集中式供冷/暖***的总冷热量表、总冷热量表下游的各个分支冷热量表相连，所述总控单元被编程或配置以执行权利要求1～6中任意一项所述集中式供冷/暖***的控制方法的步骤，或者所述末端控制单元被编程或配置以执行权利要求7～10所述集中式供冷/暖***的控制方法的步骤。A control device for a centralized cooling/heating system, comprising a master control unit and a plurality of terminal control units corresponding to the terminals one by one, the master control unit is connected to each terminal control unit through a wired or wireless network, the master The control unit is also connected to the total cold and heat meter of the centralized cooling/heating system and the branch cold and heat meters downstream of the total cold and heat meter through a wired or wireless network, and the master control unit is programmed or configured to perform The steps of the control method of the centralized cooling/heating system described in any one of claims 1-6, or the terminal control unit is programmed or configured to execute the centralized cooling/heating system described in claims 7-10 steps of the control method.
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