WO2019227851A1 - Water-system air conditioner control method - Google Patents

Water-system air conditioner control method Download PDF

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Publication number
WO2019227851A1
WO2019227851A1 PCT/CN2018/113578 CN2018113578W WO2019227851A1 WO 2019227851 A1 WO2019227851 A1 WO 2019227851A1 CN 2018113578 W CN2018113578 W CN 2018113578W WO 2019227851 A1 WO2019227851 A1 WO 2019227851A1
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Prior art keywords
temperature
indoor unit
water
correction value
humidity
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PCT/CN2018/113578
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French (fr)
Chinese (zh)
Inventor
罗建文
王春刚
刘国清
毛守博
国德防
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青岛海尔空调电子有限公司
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Publication of WO2019227851A1 publication Critical patent/WO2019227851A1/en

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    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature

Definitions

  • the invention belongs to the technical field of air conditioning, and in particular relates to a method for controlling an air conditioner in a water system.
  • the water system air conditioner with variable water temperature control on the market now only corrects the water temperature according to the difference between the current indoor temperature and the set temperature to achieve variable water temperature operation. If the temperature of the water provided after the correction is low, although it can reach the set temperature as soon as possible, it is easy to reduce the humidity in the room, so that the user feels that the air is dry. It gives people a sense of discomfort and cannot meet the user's humidity comfort requirements, resulting in a poor user experience.
  • the invention provides a water system air conditioning control method, which improves the user experience.
  • the water system air conditioner includes an outdoor unit and at least one indoor unit.
  • a water outlet pipe of the outdoor unit is connected to a water inlet pipe of each of the indoor units.
  • a water pipe is respectively connected to an outlet pipe of each of the indoor units;
  • step (2) specifically includes:
  • the indoor water inlet temperature correction value decreases by the set value; when the actual ambient humidity is not greater than the set ambient humidity, the indoor water inlet temperature correction value increases. Large set value; where 0 ⁇ a ⁇ 1;
  • the indoor water temperature correction value is reduced by the set value; when the actual ambient humidity is not greater than the set ambient humidity, the indoor water temperature correction value is maintained constant;
  • the indoor water temperature correction value is reduced by the set value; when the actual ambient humidity is not greater than the set ambient humidity, the indoor water temperature correction value is maintained Unchanged; where b> 0;
  • the actual ambient humidity is an actual absolute humidity, which is obtained by querying a preset temperature-relative humidity-absolute humidity correspondence table according to the collected actual relative humidity and actual ambient temperature;
  • the set environmental humidity is a set absolute The humidity is obtained by querying the preset temperature-relative humidity-absolute humidity correspondence table according to the preset set relative humidity and the set ambient temperature.
  • the value range of the set time period is 3 minutes to 30 minutes.
  • the value of a ranges from 0.1 to 0.9.
  • a is 0.7.
  • the value of b ranges from 0 to 2 ° C.
  • a range of the set value is 0.1 ° C to 5 ° C.
  • the set value is 0.5 ° C.
  • the water system air conditioner includes an outdoor unit and at least one indoor unit.
  • a water outlet pipe of the outdoor unit is connected to a water inlet pipe of each of the indoor units.
  • a water pipe is respectively connected to an outlet pipe of each of the indoor units;
  • the inlet water temperature correction value of the indoor unit is reduced by a set value; where 0 ⁇ a ⁇ 1;
  • the water system air conditioning control method of the present invention obtains the actual ambient temperature, set ambient temperature, and actual ambient humidity of each indoor unit through a set period of time. , Set the ambient humidity, and the proportion of boot time in the set time period; then determine according to the proportion of the boot time of each indoor unit, the actual ambient temperature, the set ambient temperature, the actual ambient humidity, and the set ambient humidity Correction value of the inlet water temperature of indoor units; compare the correction values of the inlet water temperature of all indoor units, and select the minimum value as the outlet water temperature correction value of the outdoor unit; use the outlet water temperature correction value of the outdoor unit to correct the target outlet temperature of the outdoor unit , To control the operation of the water system air conditioner according to the revised target outlet temperature; so as to meet the temperature and humidity requirements of the room where each indoor unit is located, in order to improve the user's temperature comfort and humidity comfort, improve user comfort and use experience; Moreover, the control method is simple, easy to implement, and low in cost.
  • Figure 1 is a structural block diagram of a water system air conditioner
  • FIG. 2 is a flowchart of an embodiment of a water system air conditioning control method according to the present invention
  • FIG. 3 is a flowchart of another embodiment of a water system air conditioning control method according to the present invention.
  • the water system air conditioner includes an outdoor unit and at least one indoor unit.
  • the outlet pipe of the outdoor unit is connected to the inlet pipe of each indoor unit, and the inlet pipe of the outdoor unit is connected to the outlet pipe of each indoor unit, as shown in Figure 1.
  • the water from the outlet pipe of the outdoor unit enters the inlet pipe of each indoor unit separately. After heat exchange in the indoor unit, it flows out through the outlet pipe of the indoor unit and enters the inlet pipe of the outdoor unit to complete a cycle.
  • the indoor unit is provided with a fan coil and a controller, and floor heating can also be provided for heating. It is assumed that the water system air conditioner includes n indoor units, as shown in FIG. 1.
  • the indoor unit 1 includes a controller 1, a fan coil, and floor heating.
  • the indoor unit 2 includes a controller 2, a fan coil, and floor heating. Including controller n, fan coil, floor heating.
  • the water circulation path is:
  • Water-fluorine heat exchanger for outdoor unit ⁇ Outdoor water pipe ⁇ Indoor water inlet pipe ⁇ Fan coils ⁇ Indoor water outlet pipe ⁇ Outdoor water inlet pipe ⁇ Water fluorine heat exchanger.
  • the water circulation path is:
  • Water-fluorine heat exchanger of outdoor unit ⁇ Outdoor water pipe ⁇ Indoor unit water inlet pipe ⁇ Floor heating (or fan coil) ⁇ Indoor unit water outlet pipe ⁇ Outdoor unit water inlet pipe ⁇ Water fluorine heat exchanger.
  • the water system air conditioning control method in this embodiment mainly includes the following steps, as shown in FIG. 2.
  • Every set time period T (such as 10 minutes), perform the following steps:
  • Step S11 Obtain the actual ambient temperature, set ambient temperature, actual ambient humidity, and set ambient humidity of each indoor unit, and the proportion of startup time during the set time period.
  • the actual ambient temperature of the i-th indoor unit is Tcuri
  • the set ambient temperature is Tseti
  • the actual ambient humidity is Hcuri
  • the set ambient humidity is Hseti
  • a temperature sensor and a humidity sensor are installed in each indoor unit or a room where the indoor unit is located.
  • the temperature sensor sends the collected temperature signal to the controller of the indoor unit
  • the humidity sensor sends the collected humidity signal to the controller of the indoor unit.
  • the controller of each indoor unit establishes a communication connection with the main controller of the outdoor unit for communication.
  • the controller of the indoor unit sends a temperature signal, a humidity signal, and other operating parameters of the indoor unit to the main controller of the outdoor unit.
  • the user sets a set ambient temperature and a set ambient humidity in the room through the remote control, and sends them to the controller of the indoor unit, and the controller of the indoor unit sends to the main controller of the outdoor unit.
  • the actual ambient humidity is the actual absolute humidity
  • the preset temperature-relative humidity-absolute humidity correspondence table is queried according to the collected actual relative humidity and actual ambient temperature. inferred.
  • the actual relative humidity is acquired by a humidity sensor
  • the actual ambient temperature is acquired by a temperature sensor
  • a preset temperature-relative humidity-absolute humidity correspondence table is queried to obtain the actual absolute humidity as the actual ambient humidity.
  • the set ambient humidity is a set absolute humidity, which is obtained by querying a preset temperature-relative humidity-absolute humidity correspondence table according to the preset set relative humidity and the set ambient temperature.
  • the actual ambient temperature of the indoor unit 1 is 28 ° C, and the actual relative humidity is 56%.
  • the corresponding table is queried to obtain the actual absolute humidity of 13.3.
  • the set ambient temperature of the indoor unit 1 is 26 ° C, and the relative humidity is set to 50%.
  • the actual absolute humidity is 10.5.
  • Step S12 Determine the correction value of the inlet water temperature of the indoor unit according to the proportion of each indoor unit's startup time, the actual ambient temperature, the set ambient temperature, the actual ambient humidity, and the set ambient humidity.
  • This step specifically includes:
  • the inlet water temperature correction value of the indoor unit decreases by the set value. This is because the load demand of the indoor unit is small and the indoor humidity does not meet the requirements.
  • the indoor unit needs to be further cooled and dehumidified to meet the user's comfort requirements for temperature and humidity.
  • the inlet water temperature correction value of the indoor unit increases the set value. This is because the load demand of the indoor unit is small, and the indoor humidity has reached the requirement. In order to save energy, the inlet water temperature of the indoor unit can be appropriately raised.
  • the inlet water temperature correction value of the indoor unit decreases by the set value. This is because the indoor unit has a large load demand and the indoor humidity does not meet the requirements.
  • the indoor unit needs to be further cooled and dehumidified to meet the user's comfort requirements for temperature and humidity.
  • the correction value of the inlet temperature of the indoor unit remains unchanged. This is because the load demand of the indoor unit is large, and the indoor humidity has reached the requirement. If the temperature is raised for energy saving, the load demand of the indoor unit is not met. Therefore, the inlet temperature of the indoor unit needs to be maintained.
  • the inlet water temperature correction value of the indoor unit decreases by the set value. This is because the indoor unit has a large load demand, and the indoor temperature has reached the requirements, but the indoor humidity has not met the requirements. The indoor unit needs to be further cooled and dehumidified to meet the user's comfort requirements for temperature and humidity.
  • the correction value of the inlet temperature of the indoor unit remains unchanged. This is because the load demand of the indoor unit is large, the indoor temperature has reached the requirement, and the indoor humidity has also reached the requirement. The inlet temperature of the indoor unit needs to be maintained.
  • Step S13 Compare the inlet water temperature correction values of all the indoor units, and select the minimum value as the outlet water temperature correction value of the outdoor unit.
  • the outdoor water outlet temperature correction value fix is equal to the minimum value.
  • Step S14 Correct the target outlet temperature of the outdoor unit by using the outlet temperature correction value fix of the outdoor unit, and control the operation of the water system air conditioner according to the corrected target outlet temperature.
  • the target outlet temperature of the outdoor unit is corrected by using the outlet temperature correction value fix of the outdoor unit, specifically, the current target outlet temperature of the outdoor unit + fix.
  • the revised target outlet temperature can be achieved by adjusting the opening degree of the expansion valve or the frequency of the compressor between the outdoor unit heat exchanger and the water-fluorine heat exchanger.
  • the target outlet temperature of the outdoor unit is also the target outlet temperature of the water-fluorine heat exchanger.
  • the minimum value of the inlet water temperature correction value of all indoor units is selected as the outlet water temperature correction value of the outdoor unit, which is used to correct the target outlet temperature of the outdoor unit, taking into account the load requirements of all indoor units to ensure that each indoor unit The temperature and humidity requirements of the room where it is located, in order to improve the temperature comfort and humidity comfort of the user, and improve the user experience.
  • the actual ambient temperature, the set ambient temperature, the actual ambient humidity, and the set ambient humidity of each indoor unit are obtained every set time period, and the The proportion of the startup time in the set period of time; then determine the correction value of the inlet water temperature of the indoor unit according to the proportion of the startup time of each indoor unit, the actual ambient temperature, the set ambient temperature, the actual ambient humidity, and the set ambient humidity; Compare the correction values of the inlet temperature of all indoor units, and select the minimum value as the correction value of the outlet temperature of the outdoor unit; use the correction value of the outlet temperature of the outdoor unit to correct the target outlet temperature of the outdoor unit, and control according to the corrected target outlet temperature
  • the operation of water system air conditioners in order to meet the temperature and humidity requirements of the room where each indoor unit is located, in order to improve the user's temperature and humidity comfort, improve user comfort and user experience; moreover, the control method is simple, easy to implement, Cost is lower.
  • steps S11 to S14 are performed every set time period T, that is, the outlet water temperature correction value of the outdoor unit is adjusted every set time period T, so as to timely modify the target water temperature of the outdoor unit in order to In order to timely meet the temperature and humidity requirements of the room where each indoor unit is located, improve the user experience.
  • the target outlet temperature of the outdoor unit is modified, so that the temperature of the water automatically changes with the change of the indoor temperature and humidity load, so that the indoor temperature and humidity meet the user's requirements, and the indoor temperature and humidity are improved. User comfort and energy savings.
  • the value of the set time period T ranges from 3 minutes to 30 minutes; not only avoids too frequent adjustments caused by too short time, but also avoids too slow adjustments caused by too long time and frequent system start-stops, so In this value range, it can ensure timely adjustment and avoid frequent start-stops, improving user comfort and user experience.
  • the time period T is set to 10 minutes, which not only ensures timely adjustment, but also avoids frequent starting and stopping, and improves user comfort.
  • the value of a ranges from 0.1 to 0.9. a If it is too small, the temperature of the outdoor unit will be corrected as soon as the indoor unit is shut down, which will cause large room temperature fluctuations during startup. Correction will lead to slow reaching the set temperature and affect the user experience. Therefore, within this value range, the temperature of the outdoor unit's water outlet can be corrected in a timely manner, while avoiding fluctuations in room temperature, and improving user comfort and user experience.
  • a is 0.7, which can timely correct the temperature of the outdoor unit's water outlet, avoid causing fluctuations in room temperature, and improve user comfort.
  • the setting value ranges from 0.1 ° C to 5 ° C. If the value is too large, the temperature correction will be too large, which will cause frequent fluctuations of the unit and the room temperature will be too large; if the value is too small, the correction will be too small and the temperature adjustment speed will be too slow. Therefore, within this value range, a reasonable temperature adjustment speed is ensured, and excessive fluctuations in room temperature are avoided.
  • the set value is 0.5 ° C., which not only ensures a reasonable temperature adjustment speed, but also avoids excessive room temperature fluctuations.
  • the water system air conditioning control method of this embodiment mainly includes the following steps, as shown in FIG. 3.
  • Every set time period T (such as 10 minutes), perform the following steps:
  • Step S21 Obtain the actual ambient temperature, the set ambient temperature, and the proportion of the startup time in the set time period for each indoor unit.
  • the actual ambient temperature of the i-th indoor unit is Tcuri
  • the set ambient temperature is Tseti
  • a temperature sensor is installed in each indoor unit or the room where the indoor unit is located, and the temperature sensor sends the collected temperature signal to the controller of the indoor unit.
  • the controller of each indoor unit establishes a communication connection with the main controller of the outdoor unit for communication.
  • the controller of the indoor unit sends a temperature signal and other operating parameters of the indoor unit to the main controller of the outdoor unit.
  • the user sets the set ambient temperature of the room through the remote control and sends it to the controller of the indoor unit, and the controller of the indoor unit sends to the main controller of the outdoor unit.
  • Step S22 Determine the water inlet temperature correction value of the indoor unit according to the proportion of each indoor unit's startup time, the actual ambient temperature, and the set ambient temperature.
  • This step specifically includes:
  • the correction value of the inlet water temperature of the indoor unit is reduced by a set value; where 0 ⁇ a ⁇ 1.
  • Step S23 Compare the correction values of the inlet water temperature of all the indoor units, and select the maximum value as the correction value of the outlet water temperature of the outdoor unit.
  • the outlet water temperature correction value fix of the outdoor unit is equal to the maximum value.
  • Step S24 Correct the target outlet temperature of the outdoor unit by using the outlet temperature correction value fix of the outdoor unit, and control the operation of the water system air conditioner according to the corrected target outlet temperature.
  • the target outlet temperature of the outdoor unit is corrected by using the outlet temperature correction value fix of the outdoor unit, specifically, the current target outlet temperature of the outdoor unit + fix.
  • the revised target outlet temperature can be achieved by adjusting the opening degree of the expansion valve or the frequency of the compressor between the outdoor unit heat exchanger and the water-fluorine heat exchanger.
  • the target outlet temperature of the outdoor unit is also the target outlet temperature of the water-fluorine heat exchanger.
  • the maximum value of the inlet water temperature correction value of all indoor units is selected as the outlet water temperature correction value of the outdoor unit, which is used to correct the target outlet temperature of the outdoor unit.
  • the load requirements of all indoor units are comprehensively considered to ensure that each indoor unit is met.
  • the temperature requirements of the room in order to improve the temperature comfort of the user and improve the user experience.
  • the actual ambient temperature of each indoor unit, the set ambient temperature, and the start-up time accounted for within the set time period are obtained by each set time period. Ratio; determine the water inlet temperature correction value of the indoor unit according to the proportion of each unit's startup time, the actual ambient temperature, and the set ambient temperature; compare the water inlet temperature correction values of all the indoor units, and choose the maximum value as the outdoor
  • the correction value of the outlet temperature of the outdoor unit; the target outlet temperature of the outdoor unit is corrected by using the outlet temperature correction value of the outdoor unit, and the operation of the water system air conditioner is controlled according to the corrected target outlet temperature; so as to meet the temperature requirements of the room where each indoor unit is located, Improve the user's temperature comfort and user experience; moreover, the control method is simple, easy to implement, and low in cost.
  • steps S21 to S24 are performed every set time period T, that is, the outlet water temperature correction value of the outdoor unit is adjusted every set time period T, so as to timely modify the target water temperature of the outdoor unit in order to In order to timely meet the temperature requirements of the room where each indoor unit is located, improve the user experience.
  • the target outlet temperature of the outdoor unit is corrected, so that the temperature of the water automatically changes with the change in the indoor temperature load, so that the indoor temperature reaches the user's requirements, the indoor temperature is constant, and the user's comfort is improved, save energy.
  • the range of the setting time period T, a, b, and the setting value is the same as that of the first embodiment.
  • the range of the setting time period T, a, b, and the setting value is the same as that of the first embodiment.

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  • Combustion & Propulsion (AREA)
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Abstract

A water-system air conditioner control method of the present invention, the method comprising: acquiring, at intervals of a set time period, an actual ambient temperature, a set ambient temperature, the actual ambient humidity, the set ambient humidity and a turn-on time proportion within the set time period of each indoor unit; then according to the turn-on time proportion, the actual ambient temperature, the set ambient temperature, the actual ambient humidity and the set ambient humidity of each indoor unit, determining an entering water temperature correction value of the indoor unit; comparing entering water temperature correction values of all the indoor units, and selecting the minimum value therein as a leaving water temperature correction value of an outdoor unit; and using the leaving water temperature correction value of the outdoor unit to correct a target leaving water temperature of the outdoor unit, and controlling the operation of a water-system air conditioner according to the corrected target leaving water temperature. In this way, temperature and humidity requirements of a room where each indoor unit is located are met so as to improve the temperature comfort and the humidity comfort for a user and improve the comfort and the usage experience for the user. Moreover, the control method is simple, is easy to implement and is relatively low in cost.

Description

一种水***空调控制方法Control method of water system air conditioner 技术领域Technical field
本发明属于空调技术领域，具体地说，是涉及一种水***空调控制方法。The invention belongs to the technical field of air conditioning, and in particular relates to a method for controlling an air conditioner in a water system.
背景技术Background technique
随着人们生活水平的提高，人们对空调使用舒适性的要求越来越高，除了要求达到温度的舒适外，还要求达到湿度的舒适。With the improvement of people's living standards, people have higher and higher requirements for the comfort of air conditioners. In addition to the comfort of temperature, the comfort of humidity is also required.
对于水***空调，由于室外天气是不断变化的，室内的人员和负荷也是不断变化的，这样导致整体上室内负荷一直变化，从而进入终端设备的水温往往不是终端设备所需要的，固定水温明显不能满足要求。For water system air conditioners, because the outdoor weather is constantly changing, the indoor personnel and load are also constantly changing. This results in the indoor load being constantly changing. As a result, the temperature of the water entering the terminal equipment is often not required by the terminal equipment. The fixed water temperature is obviously not fulfil requirements.
技术问题technical problem
现在市场上变水温控制的水***空调也仅是根据室内当前温度与设定温度的差异对水温进行修正从而实现变水温运行。如果修正后提供的水温偏低，虽然可以尽快达到设定温度，但是容易使室内的湿度降低，从而使使用者感觉空气干燥；如果修正后提供的水温偏高，又容易使室内湿度过大，给人产生不舒适感，无法满足用户的湿度舒适性需求，导致用户使用体验较差。The water system air conditioner with variable water temperature control on the market now only corrects the water temperature according to the difference between the current indoor temperature and the set temperature to achieve variable water temperature operation. If the temperature of the water provided after the correction is low, although it can reach the set temperature as soon as possible, it is easy to reduce the humidity in the room, so that the user feels that the air is dry. It gives people a sense of discomfort and cannot meet the user's humidity comfort requirements, resulting in a poor user experience.
技术解决方案Technical solutions
本发明提供了一种水***空调控制方法，提高了用户的使用体验。The invention provides a water system air conditioning control method, which improves the user experience.
为解决上述技术问题，本发明采用下述技术方案予以实现：To solve the above technical problems, the present invention is implemented using the following technical solutions:
一种水***空调控制方法，所述水***空调包括室外机和至少一台室内机，所述室外机的出水管分别与每个所述的室内机的进水管连接，所述室外机的进水管分别与每个所述的室内机的出水管连接；所述控制方法包括：A water system air conditioner control method. The water system air conditioner includes an outdoor unit and at least one indoor unit. A water outlet pipe of the outdoor unit is connected to a water inlet pipe of each of the indoor units. A water pipe is respectively connected to an outlet pipe of each of the indoor units; the control method includes:
当水***空调开始制冷运行时，或者在制冷运行过程中室外机的目标出水温度重新设定时，则室外机的出水温度修正值=0，每个室内机的进水温度修正值=0；然后，每隔设定时间段执行下述步骤：When the water system air conditioner starts the cooling operation, or when the target outlet temperature of the outdoor unit is reset during the cooling operation, the outlet water temperature correction value = 0, and the indoor water inlet temperature correction value = 0; Then, perform the following steps every set time period:
（1）获取每台室内机的实际环境温度、设定环境温度、实际环境湿度、设定环境湿度，以及在该设定时间段内的开机时间占比；(1) Obtain the actual ambient temperature, set ambient temperature, actual ambient humidity, and set ambient humidity of each indoor unit, and the proportion of startup time during the set time period;
（2）根据每台室内机的开机时间占比、实际环境温度、设定环境温度、实际环境湿度、设定环境湿度确定室内机的进水温度修正值；(2) Determine the indoor water inlet temperature correction value according to the proportion of each indoor unit's startup time, actual ambient temperature, set ambient temperature, actual ambient humidity, and set ambient humidity;
（3）比较所有室内机的进水温度修正值，选出其中的最小值作为室外机的出水温度修正值；(3) Compare the inlet water temperature correction values of all indoor units, and select the minimum value as the outdoor water temperature correction value;
（4）采用室外机的出水温度修正值修正室外机的目标出水温度，根据修正后的目标出水温度控制水***空调的运行。(4) Use the outlet temperature correction value of the outdoor unit to correct the target outlet temperature of the outdoor unit, and control the operation of the water system air conditioner based on the corrected target outlet temperature.
进一步的，步骤（2）具体包括：Further, step (2) specifically includes:
（21）对于开机时间占比∈[0,a)的室内机：(21) For the indoor unit with the startup time ratio ∈ [0, a):
当实际环境湿度大于设定环境湿度时，则该室内机的进水温度修正值减小设定值；当实际环境湿度不大于设定环境湿度时，则该室内机的进水温度修正值增大设定值；其中，0<a<1；When the actual ambient humidity is greater than the set ambient humidity, the indoor water inlet temperature correction value decreases by the set value; when the actual ambient humidity is not greater than the set ambient humidity, the indoor water inlet temperature correction value increases. Large set value; where 0 <a <1;
（22）对于开机时间占比∈[a,1)的室内机：(22) For the indoor unit with the startup time ratio ∈ [a, 1):
当实际环境湿度大于设定环境湿度时，则该室内机的进水温度修正值减小设定值；当实际环境湿度不大于设定环境湿度时，则该室内机的进水温度修正值维持不变；When the actual ambient humidity is greater than the set ambient humidity, the indoor water temperature correction value is reduced by the set value; when the actual ambient humidity is not greater than the set ambient humidity, the indoor water temperature correction value is maintained constant;
（23）对于开机时间占比=1且实际环境温度与设定环境温度之差≤b的室内机：(23) For the indoor unit with the startup time ratio = 1 and the difference between the actual ambient temperature and the set ambient temperature ≤b:
当实际环境湿度大于设定环境湿度时，则该室内机的进水温度修正值减小设定值；当实际环境湿度不大于设定环境湿度时，则该室内机的进水温度修正值维持不变；其中，b＞0；When the actual ambient humidity is greater than the set ambient humidity, the indoor water temperature correction value is reduced by the set value; when the actual ambient humidity is not greater than the set ambient humidity, the indoor water temperature correction value is maintained Unchanged; where b> 0;
（24）对于开机时间占比=1且实际环境温度与设定环境温度之差＞b的室内机，该室内机的进水温度修正值减小设定值。(24) For the indoor unit with the ratio of the start-up time = 1 and the difference between the actual ambient temperature and the set ambient temperature> b, the inlet water temperature correction value of the indoor unit is reduced by the set value.
又进一步的，所述实际环境湿度为实际绝对湿度，根据采集的实际相对湿度和实际环境温度查询预设的温度-相对湿度-绝对湿度对应表得出；所述设定环境湿度为设定绝对湿度，根据预设的设定相对湿度和设定环境温度查询预设的温度-相对湿度-绝对湿度对应表得出。Still further, the actual ambient humidity is an actual absolute humidity, which is obtained by querying a preset temperature-relative humidity-absolute humidity correspondence table according to the collected actual relative humidity and actual ambient temperature; the set environmental humidity is a set absolute The humidity is obtained by querying the preset temperature-relative humidity-absolute humidity correspondence table according to the preset set relative humidity and the set ambient temperature.
更进一步的，所述设定时间段的取值范围为3分钟~30分钟。Furthermore, the value range of the set time period is 3 minutes to 30 minutes.
进一步的，a的取值范围为0.1~0.9。Further, the value of a ranges from 0.1 to 0.9.
优选的，a为0.7。Preferably, a is 0.7.
进一步的，b的取值范围为0~2℃。Further, the value of b ranges from 0 to 2 ° C.
进一步的，所述设定值的取值范围为0.1℃~5℃。Further, a range of the set value is 0.1 ° C to 5 ° C.
优选的，所述设定值为0.5℃。Preferably, the set value is 0.5 ° C.
一种水***空调控制方法，所述水***空调包括室外机和至少一台室内机，所述室外机的出水管分别与每个所述的室内机的进水管连接，所述室外机的进水管分别与每个所述的室内机的出水管连接；所述控制方法包括：A water system air conditioner control method. The water system air conditioner includes an outdoor unit and at least one indoor unit. A water outlet pipe of the outdoor unit is connected to a water inlet pipe of each of the indoor units. A water pipe is respectively connected to an outlet pipe of each of the indoor units; the control method includes:
当水***空调开始制热运行时，或者在制热运行过程中室外机的目标出水温度重新设定时，则室外机的出水温度修正值=0，每个室内机的进水温度修正值=0；然后，每隔设定时间段执行下述步骤：When the water system air conditioner starts heating operation, or when the target outlet temperature of the outdoor unit is reset during the heating operation, the outlet water temperature correction value = 0, and the inlet water temperature correction value of each indoor unit = 0; then, perform the following steps every set time period:
（1）获取每台室内机的实际环境温度、设定环境温度、以及在该设定时间段内的开机时间占比；(1) Obtain the actual ambient temperature, set ambient temperature of each indoor unit, and the proportion of startup time in the set time period;
（2）根据每台室内机的开机时间占比、实际环境温度、设定环境温度确定室内机的进水温度修正值：(2) Determine the inlet water temperature correction value of the indoor unit according to the proportion of each unit's startup time, the actual ambient temperature, and the set ambient temperature:
（21）对于开机时间占比∈[0,a)的室内机，该室内机的进水温度修正值减小设定值；其中，0<a<1；(21) For an indoor unit with the startup time ratio ∈ [0, a), the inlet water temperature correction value of the indoor unit is reduced by a set value; where 0 <a <1;
（22）对于开机时间占比∈[a,1)的室内机，该室内机的进水温度修正值维持不变；(22) For the indoor unit with the startup time ratio ∈ [a, 1), the correction value of the inlet water temperature of the indoor unit remains unchanged;
（23）对于开机时间占比=1且实际环境温度与设定环境温度之差＞b的室内机，该室内机的进水温度修正值维持不变；其中，b＞0；(23) For an indoor unit with a startup time ratio of = 1 and the difference between the actual ambient temperature and the set ambient temperature> b, the correction value of the inlet water temperature of the indoor unit remains the same; where b> 0;
（24）对于开机时间占比=1且实际环境温度与设定环境温度之差≤b的室内机，该室内机的进水温度修正值增大设定值；(24) For the indoor unit with the startup time ratio = 1 and the difference between the actual ambient temperature and the set ambient temperature ≤ b, the inlet water temperature correction value of the indoor unit is increased by the set value;
（3）比较所有室内机的进水温度修正值，选出其中的最大值作为室外机的出水温度修正值；(3) Compare the correction values of the inlet water temperature of all indoor units, and select the maximum value as the correction value of the outlet water temperature of the outdoor unit;
（4）采用室外机的出水温度修正值修正室外机的目标出水温度，根据修正后的目标出水温度控制水***空调的运行。(4) Use the outlet temperature correction value of the outdoor unit to correct the target outlet temperature of the outdoor unit, and control the operation of the water system air conditioner based on the corrected target outlet temperature.
有益效果Beneficial effect
与现有技术相比，本发明的优点和积极效果是：本发明的水***空调控制方法，通过每隔设定时间段获取每台室内机的实际环境温度、设定环境温度、实际环境湿度、设定环境湿度，以及在该设定时间段内的开机时间占比；然后根据每台室内机的开机时间占比、实际环境温度、设定环境温度、实际环境湿度、设定环境湿度确定室内机的进水温度修正值；比较所有室内机的进水温度修正值，选出其中的最小值作为室外机的出水温度修正值；采用室外机的出水温度修正值修正室外机的目标出水温度，根据修正后的目标出水温度控制水***空调的运行；从而满足每个室内机所在房间的温度和湿度需求，以提高用户的温度舒适性和湿度舒适性，提高用户的舒适性和使用体验；而且，控制方法简单、便于实现、成本较低。Compared with the prior art, the advantages and positive effects of the present invention are: The water system air conditioning control method of the present invention obtains the actual ambient temperature, set ambient temperature, and actual ambient humidity of each indoor unit through a set period of time. , Set the ambient humidity, and the proportion of boot time in the set time period; then determine according to the proportion of the boot time of each indoor unit, the actual ambient temperature, the set ambient temperature, the actual ambient humidity, and the set ambient humidity Correction value of the inlet water temperature of indoor units; compare the correction values of the inlet water temperature of all indoor units, and select the minimum value as the outlet water temperature correction value of the outdoor unit; use the outlet water temperature correction value of the outdoor unit to correct the target outlet temperature of the outdoor unit , To control the operation of the water system air conditioner according to the revised target outlet temperature; so as to meet the temperature and humidity requirements of the room where each indoor unit is located, in order to improve the user's temperature comfort and humidity comfort, improve user comfort and use experience; Moreover, the control method is simple, easy to implement, and low in cost.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1是水***空调的结构框图；Figure 1 is a structural block diagram of a water system air conditioner;
图2是本发明所提出的水***空调控制方法的一个实施例的流程图；2 is a flowchart of an embodiment of a water system air conditioning control method according to the present invention;
图3是本发明所提出的水***空调控制方法的另一个实施例的流程图。FIG. 3 is a flowchart of another embodiment of a water system air conditioning control method according to the present invention.
本发明的实施方式Embodiments of the invention
水***空调包括室外机和至少一台室内机，室外机的出水管分别与每个室内机的进水管连接，室外机的进水管分别与每个室内机的出水管连接，参见图1所示；室外机的出水管流出的水分别进入每个室内机的进水管，在室内机内进行换热后，经室内机的出水管流出，进入室外机的进水管，完成一个循环。The water system air conditioner includes an outdoor unit and at least one indoor unit. The outlet pipe of the outdoor unit is connected to the inlet pipe of each indoor unit, and the inlet pipe of the outdoor unit is connected to the outlet pipe of each indoor unit, as shown in Figure 1. The water from the outlet pipe of the outdoor unit enters the inlet pipe of each indoor unit separately. After heat exchange in the indoor unit, it flows out through the outlet pipe of the indoor unit and enters the inlet pipe of the outdoor unit to complete a cycle.
在室内机中设置有风机盘管和控制器，还可以设置地暖，用于制热。假设水***空调包括n台室内机，参见图1所示，室内机1包括控制器1、风机盘管、地暖，室内机2包括控制器2、风机盘管、地暖，……，室内机n包括控制器n、风机盘管、地暖。The indoor unit is provided with a fan coil and a controller, and floor heating can also be provided for heating. It is assumed that the water system air conditioner includes n indoor units, as shown in FIG. 1. The indoor unit 1 includes a controller 1, a fan coil, and floor heating. The indoor unit 2 includes a controller 2, a fan coil, and floor heating. Including controller n, fan coil, floor heating.
制冷运行时，水循环路径为：During cooling operation, the water circulation path is:
室外机的水氟换热器→室外机出水管→室内机进水管→风机盘管→室内机出水管→室外机进水管→水氟换热器。Water-fluorine heat exchanger for outdoor unit → Outdoor water pipe → Indoor water inlet pipe → Fan coils → Indoor water outlet pipe → Outdoor water inlet pipe → Water fluorine heat exchanger.
制热运行时，水循环路径为：During heating operation, the water circulation path is:
室外机的水氟换热器→室外机出水管→室内机进水管→地暖（或风机盘管）→室内机出水管→室外机进水管→水氟换热器。Water-fluorine heat exchanger of outdoor unit → Outdoor water pipe → Indoor unit water inlet pipe → Floor heating (or fan coil) → Indoor unit water outlet pipe → Outdoor unit water inlet pipe → Water fluorine heat exchanger.
实施例一、Example one,
在制冷工况下，本实施例的水***空调控制方法，主要包括下述步骤，参见图2所示。In the refrigeration mode, the water system air conditioning control method in this embodiment mainly includes the following steps, as shown in FIG. 2.
当水***空调开始制冷运行时，或者在制冷运行过程中室外机的目标出水温度重新设定时，则室外机的出水温度修正值fix=0，每个室内机的进水温度修正值=0，即室内机1的进水温度修正值fix1=0，室内机2的进水温度修正值fix2=0，……，室内机n的进水温度修正值fixn=0。When the water system air conditioner starts cooling operation, or when the target outlet temperature of the outdoor unit is reset during the cooling operation, the outlet water temperature correction value fix = 0, and the inlet water temperature correction value of each indoor unit = 0 That is, the water inlet temperature correction value fix1 = 0 of the indoor unit 1, the water inlet temperature correction value fix2 = 0 of the indoor unit 2, and the water inlet temperature correction value fixn = 0 of the indoor unit n.
然后，每隔设定时间段T（如10分钟），执行下述步骤：Then, every set time period T (such as 10 minutes), perform the following steps:
步骤S11：获取每台室内机的实际环境温度、设定环境温度、实际环境湿度、设定环境湿度，以及在该设定时间段内的开机时间占比。Step S11: Obtain the actual ambient temperature, set ambient temperature, actual ambient humidity, and set ambient humidity of each indoor unit, and the proportion of startup time during the set time period.
第i台室内机的实际环境温度为Tcuri、设定环境温度为Tseti、实际环境湿度为Hcuri、设定环境湿度为Hseti、在设定时间段内的开机时间占比为Pi；i=1,2,3,……,n。The actual ambient temperature of the i-th indoor unit is Tcuri, the set ambient temperature is Tseti, the actual ambient humidity is Hcuri, the set ambient humidity is Hseti, and the proportion of the startup time in the set time period is Pi; i = 1, 2,3, ..., n.
开机时间占比=在设定时间段内的开机时间/设定时间段。如设定时间段为10分钟，在设定时间段内第i台室内机的开机时间为5分钟，则该室内机的开机时间占比Pi=5/10=0.5。Proportion of startup time = startup time within a set time period / set time period. If the set time period is 10 minutes and the boot time of the i-th indoor unit is 5 minutes within the set time period, then the proportion of the boot time of the i V indoor unit is Pi = 5/10 = 0.5.
在每台室内机内或者室内机所在的房间内安装有温度传感器、湿度传感器，温度传感器将采集的温度信号发送至室内机的控制器，湿度传感器将采集的湿度信号发送至室内机的控制器。A temperature sensor and a humidity sensor are installed in each indoor unit or a room where the indoor unit is located. The temperature sensor sends the collected temperature signal to the controller of the indoor unit, and the humidity sensor sends the collected humidity signal to the controller of the indoor unit. .
每台室内机的控制器与室外机的主控制器建立通讯连接，进行通信。室内机的控制器发送温度信号、湿度信号以及室内机的其他运行参数至室外机的主控制器。The controller of each indoor unit establishes a communication connection with the main controller of the outdoor unit for communication. The controller of the indoor unit sends a temperature signal, a humidity signal, and other operating parameters of the indoor unit to the main controller of the outdoor unit.
用户通过遥控器设定室内的设定环境温度、设定环境湿度，并发送至室内机的控制器，室内机的控制器发送至室外机的主控制器。The user sets a set ambient temperature and a set ambient humidity in the room through the remote control, and sends them to the controller of the indoor unit, and the controller of the indoor unit sends to the main controller of the outdoor unit.
在本实施例中，为了提高对室内湿度判断的准确性，所述的实际环境湿度为实际绝对湿度，根据采集的实际相对湿度和实际环境温度查询预设的温度-相对湿度-绝对湿度对应表得出。实际相对湿度通过湿度传感器采集获得，实际环境温度通过温度传感器采集获得，然后查询预设的温度-相对湿度-绝对湿度对应表，获得实际绝对湿度，作为实际环境湿度。所述的设定环境湿度为设定绝对湿度，根据预设的设定相对湿度和设定环境温度查询预设的温度-相对湿度-绝对湿度对应表得出。In this embodiment, in order to improve the accuracy of the indoor humidity judgment, the actual ambient humidity is the actual absolute humidity, and the preset temperature-relative humidity-absolute humidity correspondence table is queried according to the collected actual relative humidity and actual ambient temperature. inferred. The actual relative humidity is acquired by a humidity sensor, the actual ambient temperature is acquired by a temperature sensor, and then a preset temperature-relative humidity-absolute humidity correspondence table is queried to obtain the actual absolute humidity as the actual ambient humidity. The set ambient humidity is a set absolute humidity, which is obtained by querying a preset temperature-relative humidity-absolute humidity correspondence table according to the preset set relative humidity and the set ambient temperature.
例如，室内机1的实际环境温度为28℃，实际相对湿度为56%，查询对应表，得出实际绝对湿度13.3。室内机1的设定环境温度为26℃，设定相对湿度为50%，查询对应表，得出实际绝对湿度10.5。For example, the actual ambient temperature of the indoor unit 1 is 28 ° C, and the actual relative humidity is 56%. The corresponding table is queried to obtain the actual absolute humidity of 13.3. The set ambient temperature of the indoor unit 1 is 26 ° C, and the relative humidity is set to 50%. By querying the corresponding table, the actual absolute humidity is 10.5.
步骤S12：根据每台室内机的开机时间占比、实际环境温度、设定环境温度、实际环境湿度、设定环境湿度确定室内机的进水温度修正值。Step S12: Determine the correction value of the inlet water temperature of the indoor unit according to the proportion of each indoor unit's startup time, the actual ambient temperature, the set ambient temperature, the actual ambient humidity, and the set ambient humidity.
该步骤具体包括：This step specifically includes:
（1）对于开机时间占比∈[0,a)的室内机，负荷需求小。(1) For indoor units with a startup time ratio ∈ [0, a), the load demand is small.
当实际环境湿度大于设定环境湿度时，则该室内机的进水温度修正值减小设定值。这是由于该室内机的负荷需求小，且室内湿度未达到要求，该室内机需要进一步降温除湿，以满足用户对温度和湿度的舒适性要求。When the actual ambient humidity is greater than the set ambient humidity, the inlet water temperature correction value of the indoor unit decreases by the set value. This is because the load demand of the indoor unit is small and the indoor humidity does not meet the requirements. The indoor unit needs to be further cooled and dehumidified to meet the user's comfort requirements for temperature and humidity.
当实际环境湿度不大于设定环境湿度时，则该室内机的进水温度修正值增大设定值。这是由于该室内机的负荷需求小，且室内湿度已经达到要求，为了节能，该室内机的进水温度可适当升温。When the actual ambient humidity is not greater than the set ambient humidity, the inlet water temperature correction value of the indoor unit increases the set value. This is because the load demand of the indoor unit is small, and the indoor humidity has reached the requirement. In order to save energy, the inlet water temperature of the indoor unit can be appropriately raised.
其中，0<a<1。Among them, 0 <a <1.
（2）对于开机时间占比∈[a,1)的室内机，负荷需求大。(2) For indoor units with a startup time ratio ∈ [a, 1), the load demand is large.
当实际环境湿度大于设定环境湿度时，则该室内机的进水温度修正值减小设定值。这是由于该室内机的负荷需求大，且室内湿度未达到要求，该室内机需要进一步降温除湿，以满足用户对温度和湿度的舒适性要求。When the actual ambient humidity is greater than the set ambient humidity, the inlet water temperature correction value of the indoor unit decreases by the set value. This is because the indoor unit has a large load demand and the indoor humidity does not meet the requirements. The indoor unit needs to be further cooled and dehumidified to meet the user's comfort requirements for temperature and humidity.
当实际环境湿度不大于设定环境湿度时，则该室内机的进水温度修正值维持不变。这是由于该室内机的负荷需求大，且室内湿度已达到要求，若是为了节能而升温，则不满足室内机的负荷需求，因此，该室内机的进水温度需要保持。When the actual ambient humidity is not greater than the set ambient humidity, the correction value of the inlet temperature of the indoor unit remains unchanged. This is because the load demand of the indoor unit is large, and the indoor humidity has reached the requirement. If the temperature is raised for energy saving, the load demand of the indoor unit is not met. Therefore, the inlet temperature of the indoor unit needs to be maintained.
（3）对于开机时间占比=1且实际环境温度与设定环境温度之差≤b的室内机，表示室内机一直开机，且室内温度达到要求。(3) For an indoor unit with a startup time ratio = 1 and a difference between the actual ambient temperature and the set ambient temperature ≤ b, it means that the indoor unit has been turned on and the indoor temperature has reached the requirement.
当实际环境湿度大于设定环境湿度时，则该室内机的进水温度修正值减小设定值。这是由于该室内机的负荷需求较大，室内温度已达到要求，但室内湿度未达到要求，该室内机需要进一步降温除湿，以满足用户对温度和湿度的舒适性要求。When the actual ambient humidity is greater than the set ambient humidity, the inlet water temperature correction value of the indoor unit decreases by the set value. This is because the indoor unit has a large load demand, and the indoor temperature has reached the requirements, but the indoor humidity has not met the requirements. The indoor unit needs to be further cooled and dehumidified to meet the user's comfort requirements for temperature and humidity.
当实际环境湿度不大于设定环境湿度时，则该室内机的进水温度修正值维持不变。这是由于该室内机的负荷需求较大，室内温度已达到要求，室内湿度也达到要求，该室内机的进水温度需要保持。When the actual ambient humidity is not greater than the set ambient humidity, the correction value of the inlet temperature of the indoor unit remains unchanged. This is because the load demand of the indoor unit is large, the indoor temperature has reached the requirement, and the indoor humidity has also reached the requirement. The inlet temperature of the indoor unit needs to be maintained.
其中，b＞0。Among them, b> 0.
（4）对于开机时间占比=1且实际环境温度与设定环境温度之差＞b的室内机，表示室内机一直开机，且室内温度未达到要求，负荷需求较大，则该室内机的进水温度修正值减小设定值。这是由于该室内机的负荷需求较大，室内温度未达到要求，需要进一步降温，以满足用户对温度和湿度的舒适性要求。(4) For an indoor unit with the startup time ratio = 1 and the difference between the actual ambient temperature and the set ambient temperature> b, it means that the indoor unit has been turned on, the indoor temperature has not reached the requirements, and the load demand is large. The inlet water temperature correction value decreases the set value. This is because the indoor unit has a large load demand, and the indoor temperature does not meet the requirements. It is necessary to further reduce the temperature to meet the user's comfort requirements for temperature and humidity.
步骤S13：比较所有室内机的进水温度修正值，选出其中的最小值作为室外机的出水温度修正值。Step S13: Compare the inlet water temperature correction values of all the indoor units, and select the minimum value as the outlet water temperature correction value of the outdoor unit.
也就是说，比较fix1、fix2、……、fixn，选出其中的最小值，则室外机的出水温度修正值fix等于该最小值。That is, comparing fix1, fix2, ..., fixn, and selecting the minimum value among them, the outdoor water outlet temperature correction value fix is equal to the minimum value.
步骤S14：采用室外机的出水温度修正值fix修正室外机的目标出水温度，根据修正后的目标出水温度控制水***空调的运行。Step S14: Correct the target outlet temperature of the outdoor unit by using the outlet temperature correction value fix of the outdoor unit, and control the operation of the water system air conditioner according to the corrected target outlet temperature.
采用室外机的出水温度修正值fix修正室外机的目标出水温度，具体来说，就是室外机当前的目标出水温度+ fix。修正后的目标出水温度的实现可以通过调整室外机换热器与水氟换热器之间的膨胀阀的开度或者压缩机频率实现。室外机的目标出水温度也即水氟换热器的目标出水温度。The target outlet temperature of the outdoor unit is corrected by using the outlet temperature correction value fix of the outdoor unit, specifically, the current target outlet temperature of the outdoor unit + fix. The revised target outlet temperature can be achieved by adjusting the opening degree of the expansion valve or the frequency of the compressor between the outdoor unit heat exchanger and the water-fluorine heat exchanger. The target outlet temperature of the outdoor unit is also the target outlet temperature of the water-fluorine heat exchanger.
选择所有室内机的进水温度修正值中的最小值作为室外机的出水温度修正值，用于修正室外机的目标出水温度，综合考虑了所有室内机的负荷需求，以保证满足每个室内机所在房间的温度和湿度需求，以提高用户的温度舒适性和湿度舒适性，提高用户的使用体验。The minimum value of the inlet water temperature correction value of all indoor units is selected as the outlet water temperature correction value of the outdoor unit, which is used to correct the target outlet temperature of the outdoor unit, taking into account the load requirements of all indoor units to ensure that each indoor unit The temperature and humidity requirements of the room where it is located, in order to improve the temperature comfort and humidity comfort of the user, and improve the user experience.
本实施例的水***空调控制方法，在制冷工况下，通过每隔设定时间段获取每台室内机的实际环境温度、设定环境温度、实际环境湿度、设定环境湿度，以及在该设定时间段内的开机时间占比；然后根据每台室内机的开机时间占比、实际环境温度、设定环境温度、实际环境湿度、设定环境湿度确定室内机的进水温度修正值；比较所有室内机的进水温度修正值，选出其中的最小值作为室外机的出水温度修正值；采用室外机的出水温度修正值修正室外机的目标出水温度，根据修正后的目标出水温度控制水***空调的运行；从而满足每个室内机所在房间的温度和湿度需求，以提高用户的温度舒适性和湿度舒适性，提高用户的舒适性和使用体验；而且，控制方法简单、便于实现、成本较低。In the water system air conditioner control method of this embodiment, in a refrigeration mode, the actual ambient temperature, the set ambient temperature, the actual ambient humidity, and the set ambient humidity of each indoor unit are obtained every set time period, and the The proportion of the startup time in the set period of time; then determine the correction value of the inlet water temperature of the indoor unit according to the proportion of the startup time of each indoor unit, the actual ambient temperature, the set ambient temperature, the actual ambient humidity, and the set ambient humidity; Compare the correction values of the inlet temperature of all indoor units, and select the minimum value as the correction value of the outlet temperature of the outdoor unit; use the correction value of the outlet temperature of the outdoor unit to correct the target outlet temperature of the outdoor unit, and control according to the corrected target outlet temperature The operation of water system air conditioners; in order to meet the temperature and humidity requirements of the room where each indoor unit is located, in order to improve the user's temperature and humidity comfort, improve user comfort and user experience; moreover, the control method is simple, easy to implement, Cost is lower.
本实施例中，每隔设定时间段T执行一次步骤S11～S14，即每隔设定时间段T调整室外机的出水温度修正值，以便于及时对室外机的目标出水温度进行修正，以便于及时满足每个室内机所在房间的温度和湿度需求，提高用户的使用体验。In this embodiment, steps S11 to S14 are performed every set time period T, that is, the outlet water temperature correction value of the outdoor unit is adjusted every set time period T, so as to timely modify the target water temperature of the outdoor unit in order to In order to timely meet the temperature and humidity requirements of the room where each indoor unit is located, improve the user experience.
本实施例的控制方法，通过修正室外机的目标出水温度，从而使得水的温度跟随室内温度和湿度负荷的变化而自动变化，使得室内温度和湿度达到用户的要求，室内达到恒温恒湿，提高用户的舒适性，且节省能源。In the control method of this embodiment, the target outlet temperature of the outdoor unit is modified, so that the temperature of the water automatically changes with the change of the indoor temperature and humidity load, so that the indoor temperature and humidity meet the user's requirements, and the indoor temperature and humidity are improved. User comfort and energy savings.
在本实施例中，设定时间段T的取值范围为3分钟~30分钟；既避免时间过短导致的调节过于频繁，又避免时间过长导致的调节太慢、***起停频繁，因此，在该取值范围内，既保证调节及时，又避免频繁启停，提高用户舒适性和使用体验。作为本实施例的一种优选设计方案，设定时间段T为10分钟，既保证调节及时，又避免频繁启停，提高用户舒适性。In this embodiment, the value of the set time period T ranges from 3 minutes to 30 minutes; not only avoids too frequent adjustments caused by too short time, but also avoids too slow adjustments caused by too long time and frequent system start-stops, so In this value range, it can ensure timely adjustment and avoid frequent start-stops, improving user comfort and user experience. As a preferred design solution of this embodiment, the time period T is set to 10 minutes, which not only ensures timely adjustment, but also avoids frequent starting and stopping, and improves user comfort.
在本实施例中，a的取值范围为0.1~0.9。a如果过小，室内机一停机就会进行室外机出水温度修正，在启动时容易造成室温波动较大；a如果过大,室内机运转很长时间还没有达到设定温度，没有及时进行温度修正，会导致达到设定温度慢，影响用户的使用体验。因此，在该取值范围内，既能对室外机出水温度进行及时修正，又避免造成室温波动，提高用户的舒适性和使用体验。作为本实施例的一种优选设计方案，a为0.7，既能对室外机出水温度进行及时修正，又避免造成室温波动，提高用户的舒适性。In this embodiment, the value of a ranges from 0.1 to 0.9. a If it is too small, the temperature of the outdoor unit will be corrected as soon as the indoor unit is shut down, which will cause large room temperature fluctuations during startup. Correction will lead to slow reaching the set temperature and affect the user experience. Therefore, within this value range, the temperature of the outdoor unit's water outlet can be corrected in a timely manner, while avoiding fluctuations in room temperature, and improving user comfort and user experience. As a preferred design solution of this embodiment, a is 0.7, which can timely correct the temperature of the outdoor unit's water outlet, avoid causing fluctuations in room temperature, and improve user comfort.
在本实施例中，b的取值范围为0~2℃。若b取值过大，则室内温度不满足用户的温度需求；若b取值过小，则容易造成过度调节，造成能源浪费。因此，在该取值范围内，既能满足用户的温度需求，提高用户舒适性，又节省能源。作为本实施例的一种优选设计方案，b=0.5℃，既能满足用户的温度需求，又节省能源。In this embodiment, the value of b ranges from 0 to 2 ° C. If the value of b is too large, the indoor temperature does not meet the user's temperature requirements; if the value of b is too small, it may easily cause over-regulation and waste energy. Therefore, within this value range, it can meet the temperature requirements of users, improve user comfort, and save energy. As a preferred design solution of this embodiment, b = 0.5 ° C, which can meet the temperature requirements of users and save energy.
在本实施例中，设定值的取值范围为0.1℃~5℃。若取值过大，则容易造成温度修正过大，导致机组频繁波动，室温波动过大；若取值过小，则容易造成修正过小，导致温度调节速度过慢。因此，在该取值范围内，既保证合理的温度调节速度，又避免室温波动过大。作为本实施例的一种优选设计方案，设定值=0.5℃，既保证合理的温度调节速度，又避免室温波动过大。In this embodiment, the setting value ranges from 0.1 ° C to 5 ° C. If the value is too large, the temperature correction will be too large, which will cause frequent fluctuations of the unit and the room temperature will be too large; if the value is too small, the correction will be too small and the temperature adjustment speed will be too slow. Therefore, within this value range, a reasonable temperature adjustment speed is ensured, and excessive fluctuations in room temperature are avoided. As a preferred design solution of this embodiment, the set value is 0.5 ° C., which not only ensures a reasonable temperature adjustment speed, but also avoids excessive room temperature fluctuations.
实施例二、Example two,
在制热工况下，本实施例的水***空调控制方法，主要包括下述步骤，参见图3所示。Under heating conditions, the water system air conditioning control method of this embodiment mainly includes the following steps, as shown in FIG. 3.
当水***空调开始制热运行时，或者在制热运行过程中室外机的目标出水温度重新设定时，则室外机的出水温度修正值fix=0，每个室内机的进水温度修正值=0，即室内机1的进水温度修正值fix1=0，室内机2的进水温度修正值fix2=0，……，室内机n的进水温度修正值fixn=0。When the water system air conditioner starts heating operation, or when the target outlet temperature of the outdoor unit is reset during the heating operation, the outlet water temperature correction value fix = 0, and the inlet water temperature correction value of each indoor unit = 0, that is, the correction value of the inlet water temperature of the indoor unit 1 is fix1 = 0, the correction value of the inlet water temperature of the indoor unit 2 is fix2 = 0, ..., and the correction value of the inlet water temperature of the indoor unit n is fixn = 0.
然后，每隔设定时间段T（如10分钟），执行下述步骤：Then, every set time period T (such as 10 minutes), perform the following steps:
步骤S21：获取每台室内机的实际环境温度、设定环境温度、以及在该设定时间段内的开机时间占比。Step S21: Obtain the actual ambient temperature, the set ambient temperature, and the proportion of the startup time in the set time period for each indoor unit.
第i台室内机的实际环境温度为Tcuri、设定环境温度为Tseti、在设定时间段内的开机时间占比为Pi；i=1,2,3,……,n。The actual ambient temperature of the i-th indoor unit is Tcuri, the set ambient temperature is Tseti, and the proportion of the startup time in the set time period is Pi; i = 1,2,3, ..., n.
开机时间占比=在设定时间段内的开机时间/设定时间段。如设定时间段为10分钟，在设定时间段内第i台室内机的开机时间为5分钟，则该室内机的开机时间占比Pi=5/10=0.5。Proportion of startup time = startup time within a set time period / set time period. If the set time period is 10 minutes and the boot time of the i-th indoor unit is 5 minutes within the set time period, then the proportion of the boot time of the i V indoor unit is Pi = 5/10 = 0.5.
在每台室内机内或者室内机所在的房间内安装有温度传感器，温度传感器将采集的温度信号发送至室内机的控制器。A temperature sensor is installed in each indoor unit or the room where the indoor unit is located, and the temperature sensor sends the collected temperature signal to the controller of the indoor unit.
每台室内机的控制器与室外机的主控制器建立通讯连接，进行通信。室内机的控制器发送温度信号以及室内机的其他运行参数至室外机的主控制器。The controller of each indoor unit establishes a communication connection with the main controller of the outdoor unit for communication. The controller of the indoor unit sends a temperature signal and other operating parameters of the indoor unit to the main controller of the outdoor unit.
用户通过遥控器设定室内的设定环境温度，并发送至室内机的控制器，室内机的控制器发送至室外机的主控制器。The user sets the set ambient temperature of the room through the remote control and sends it to the controller of the indoor unit, and the controller of the indoor unit sends to the main controller of the outdoor unit.
步骤S22：根据每台室内机的开机时间占比、实际环境温度、设定环境温度确定室内机的进水温度修正值。Step S22: Determine the water inlet temperature correction value of the indoor unit according to the proportion of each indoor unit's startup time, the actual ambient temperature, and the set ambient temperature.
该步骤具体包括：This step specifically includes:
（1）对于开机时间占比∈[0,a)的室内机，该室内机的进水温度修正值减小设定值；其中，0<a<1。(1) For an indoor unit with the startup time ratio ∈ [0, a), the correction value of the inlet water temperature of the indoor unit is reduced by a set value; where 0 <a <1.
这是由于开机时间占比较小，该室内机的负荷需求小，可适当降温，以节省能源。This is because the start-up time is relatively small, and the load demand of the indoor unit is small, and the temperature can be appropriately reduced to save energy.
（2）对于开机时间占比∈[a,1)的室内机，该室内机的进水温度修正值维持不变。(2) For the indoor unit with the startup time ratio ∈ [a, 1), the correction value of the inlet water temperature of the indoor unit remains unchanged.
这是由于开机时间占比合理，该室内机的负荷需求比较合理，因此该室内机的进水温度需要保持。This is because the proportion of the start-up time is reasonable, and the load demand of the indoor unit is reasonable, so the inlet temperature of the indoor unit needs to be maintained.
（3）对于开机时间占比=1且实际环境温度与设定环境温度之差＞b的室内机，表示室内机一直开机，负荷需求较大，且室内温度达到要求，则该室内机的进水温度修正值维持不变；其中，b＞0。(3) For an indoor unit with the startup time ratio = 1 and the difference between the actual ambient temperature and the set ambient temperature> b, it means that the indoor unit is always on, the load demand is large, and the indoor temperature meets the requirements. The water temperature correction value remains the same; where b> 0.
（4）对于开机时间占比=1且实际环境温度与设定环境温度之差≤b的室内机，表示室内机一直开机，负荷需求较大，且室内温度未达到要求，则该室内机的进水温度修正值增大设定值。这是由于该室内机的负荷需求较大，室内温度未达到要求，需要进一步升温，以满足用户对温度的舒适性要求。(4) For an indoor unit with the startup time ratio = 1 and the difference between the actual ambient temperature and the set ambient temperature ≤ b, it means that the indoor unit is always on, the load demand is large, and the indoor temperature does not meet the requirements. Increase the inlet water temperature correction value by the set value. This is because the load demand of the indoor unit is large, and the indoor temperature does not meet the requirements, and further heating is needed to meet the user's requirements for temperature comfort.
步骤S23：比较所有室内机的进水温度修正值，选出其中的最大值作为室外机的出水温度修正值。Step S23: Compare the correction values of the inlet water temperature of all the indoor units, and select the maximum value as the correction value of the outlet water temperature of the outdoor unit.
也就是说，比较fix1、fix2、……、fixn，选出其中的最大值，则室外机的出水温度修正值fix等于该最大值。That is, comparing fix1, fix2, ..., fixn, and selecting the maximum value among them, the outlet water temperature correction value fix of the outdoor unit is equal to the maximum value.
步骤S24：采用室外机的出水温度修正值fix修正室外机的目标出水温度，根据修正后的目标出水温度控制水***空调的运行。Step S24: Correct the target outlet temperature of the outdoor unit by using the outlet temperature correction value fix of the outdoor unit, and control the operation of the water system air conditioner according to the corrected target outlet temperature.
采用室外机的出水温度修正值fix修正室外机的目标出水温度，具体来说，就是室外机当前的目标出水温度+ fix。修正后的目标出水温度的实现可以通过调整室外机换热器与水氟换热器之间的膨胀阀的开度或者压缩机频率实现。室外机的目标出水温度也即水氟换热器的目标出水温度。The target outlet temperature of the outdoor unit is corrected by using the outlet temperature correction value fix of the outdoor unit, specifically, the current target outlet temperature of the outdoor unit + fix. The revised target outlet temperature can be achieved by adjusting the opening degree of the expansion valve or the frequency of the compressor between the outdoor unit heat exchanger and the water-fluorine heat exchanger. The target outlet temperature of the outdoor unit is also the target outlet temperature of the water-fluorine heat exchanger.
选择所有室内机的进水温度修正值中的最大值作为室外机的出水温度修正值，用于修正室外机的目标出水温度，综合考虑了所有室内机的负荷需求，以保证满足每个室内机所在房间的温度需求，以提高用户的温度舒适性，提高用户的使用体验。The maximum value of the inlet water temperature correction value of all indoor units is selected as the outlet water temperature correction value of the outdoor unit, which is used to correct the target outlet temperature of the outdoor unit. The load requirements of all indoor units are comprehensively considered to ensure that each indoor unit is met. The temperature requirements of the room in order to improve the temperature comfort of the user and improve the user experience.
本实施例的水***空调控制方法，在制热工况下，通过每隔设定时间段获取每台室内机的实际环境温度、设定环境温度、以及在设定时间段内的开机时间占比；根据每台室内机的开机时间占比、实际环境温度、设定环境温度确定室内机的进水温度修正值；比较所有室内机的进水温度修正值，选出其中的最大值作为室外机的出水温度修正值；采用室外机的出水温度修正值修正室外机的目标出水温度，根据修正后的目标出水温度控制水***空调的运行；从而满足每个室内机所在房间的温度需求，以提高用户的温度舒适性，提高用户的使用体验；而且，控制方法简单、便于实现、成本较低。In the water system air conditioning control method of this embodiment, under heating conditions, the actual ambient temperature of each indoor unit, the set ambient temperature, and the start-up time accounted for within the set time period are obtained by each set time period. Ratio; determine the water inlet temperature correction value of the indoor unit according to the proportion of each unit's startup time, the actual ambient temperature, and the set ambient temperature; compare the water inlet temperature correction values of all the indoor units, and choose the maximum value as the outdoor The correction value of the outlet temperature of the outdoor unit; the target outlet temperature of the outdoor unit is corrected by using the outlet temperature correction value of the outdoor unit, and the operation of the water system air conditioner is controlled according to the corrected target outlet temperature; so as to meet the temperature requirements of the room where each indoor unit is located, Improve the user's temperature comfort and user experience; moreover, the control method is simple, easy to implement, and low in cost.
本实施例中，每隔设定时间段T执行一次步骤S21～S24，即每隔设定时间段T调整室外机的出水温度修正值，以便于及时对室外机的目标出水温度进行修正，以便于及时满足每个室内机所在房间的温度需求，提高用户的使用体验。In this embodiment, steps S21 to S24 are performed every set time period T, that is, the outlet water temperature correction value of the outdoor unit is adjusted every set time period T, so as to timely modify the target water temperature of the outdoor unit in order to In order to timely meet the temperature requirements of the room where each indoor unit is located, improve the user experience.
本实施例的控制方法，通过修正室外机的目标出水温度，从而使得水的温度跟随室内温度负荷的变化而自动变化，使得室内温度达到用户的要求，室内达到恒温，提高用户的舒适性，且节省能源。In the control method of this embodiment, the target outlet temperature of the outdoor unit is corrected, so that the temperature of the water automatically changes with the change in the indoor temperature load, so that the indoor temperature reaches the user's requirements, the indoor temperature is constant, and the user's comfort is improved, save energy.
本实施例中，设定时间段T、a、b、设定值的取值范围与实施例一相同，具体可参照实施例一中的描述，此处不再赘述。In this embodiment, the range of the setting time period T, a, b, and the setting value is the same as that of the first embodiment. For details, refer to the description in the first embodiment, and details are not described herein again.
以上实施例仅用以说明本发明的技术方案，而非对其进行限制；尽管参照前述实施例对本发明进行了详细的说明，对于本领域的普通技术人员来说，依然可以对前述实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或替换，并不使相应技术方案的本质脱离本发明所要求保护的技术方案的精神和范围。The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, it will still be possible for those skilled in the art to understand the foregoing embodiments. The recorded technical solutions are modified, or some technical features are replaced equivalently; and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed in the present invention.

Claims (10)

  1. 一种水***空调控制方法，所述水***空调包括室外机和至少一台室内机，所述室外机的出水管分别与每个所述的室内机的进水管连接，所述室外机的进水管分别与每个所述的室内机的出水管连接；其特征在于：所述控制方法包括：A water system air conditioner control method. The water system air conditioner includes an outdoor unit and at least one indoor unit. A water outlet pipe of the outdoor unit is connected to a water inlet pipe of each of the indoor units. The water pipe is connected to the water outlet pipe of each indoor unit, and the control method includes:
    当水***空调开始制冷运行时，或者在制冷运行过程中室外机的目标出水温度重新设定时，则室外机的出水温度修正值=0，每个室内机的进水温度修正值=0；然后，每隔设定时间段执行下述步骤：When the water system air conditioner starts the cooling operation, or when the target outlet temperature of the outdoor unit is reset during the cooling operation, the outlet water temperature correction value = 0, and the indoor water inlet temperature correction value = 0; Then, perform the following steps every set time period:
    （1）获取每台室内机的实际环境温度、设定环境温度、实际环境湿度、设定环境湿度，以及在该设定时间段内的开机时间占比；(1) Obtain the actual ambient temperature, set ambient temperature, actual ambient humidity, and set ambient humidity of each indoor unit, and the proportion of startup time during the set time period;
    （2）根据每台室内机的开机时间占比、实际环境温度、设定环境温度、实际环境湿度、设定环境湿度确定室内机的进水温度修正值；(2) Determine the indoor water inlet temperature correction value according to the proportion of each indoor unit's startup time, actual ambient temperature, set ambient temperature, actual ambient humidity, and set ambient humidity;
    （3）比较所有室内机的进水温度修正值，选出其中的最小值作为室外机的出水温度修正值；(3) Compare the inlet water temperature correction values of all indoor units, and select the minimum value as the outdoor water temperature correction value;
    （4）采用室外机的出水温度修正值修正室外机的目标出水温度，根据修正后的目标出水温度控制水***空调的运行。(4) Use the outlet temperature correction value of the outdoor unit to correct the target outlet temperature of the outdoor unit, and control the operation of the water system air conditioner based on the corrected target outlet temperature.
  2. 根据权利要求1所述的控制方法，其特征在于：步骤（2）具体包括：The control method according to claim 1, wherein step (2) specifically includes:
    （21）对于开机时间占比∈[0,a)的室内机：(21) For the indoor unit with the startup time ratio ∈ [0, a):
    当实际环境湿度大于设定环境湿度时，则该室内机的进水温度修正值减小设定值；When the actual ambient humidity is greater than the set ambient humidity, the inlet water temperature correction value of the indoor unit decreases by the set value;
    当实际环境湿度不大于设定环境湿度时，则该室内机的进水温度修正值增大设定值；When the actual ambient humidity is not greater than the set ambient humidity, the inlet water temperature correction value of the indoor unit increases the set value;
    其中，0<a<1；Among them, 0 <a <1;
    （22）对于开机时间占比∈[a,1)的室内机：(22) For the indoor unit with the startup time ratio ∈ [a, 1):
    当实际环境湿度大于设定环境湿度时，则该室内机的进水温度修正值减小设定值；When the actual ambient humidity is greater than the set ambient humidity, the inlet water temperature correction value of the indoor unit decreases by the set value;
    当实际环境湿度不大于设定环境湿度时，则该室内机的进水温度修正值维持不变；When the actual ambient humidity is not greater than the set ambient humidity, the correction value of the inlet temperature of the indoor unit remains unchanged;
    （23）对于开机时间占比=1且实际环境温度与设定环境温度之差≤b的室内机：(23) For the indoor unit with the startup time ratio = 1 and the difference between the actual ambient temperature and the set ambient temperature ≤b:
    当实际环境湿度大于设定环境湿度时，则该室内机的进水温度修正值减小设定值；When the actual ambient humidity is greater than the set ambient humidity, the inlet water temperature correction value of the indoor unit decreases by the set value;
    当实际环境湿度不大于设定环境湿度时，则该室内机的进水温度修正值维持不变；When the actual ambient humidity is not greater than the set ambient humidity, the correction value of the inlet temperature of the indoor unit remains unchanged;
    其中，b＞0；Where b> 0;
    （24）对于开机时间占比=1且实际环境温度与设定环境温度之差＞b的室内机，该室内机的进水温度修正值减小设定值。(24) For the indoor unit with the ratio of the start-up time = 1 and the difference between the actual ambient temperature and the set ambient temperature> b, the inlet water temperature correction value of the indoor unit is reduced by the set value.
  3. 根据权利要求1所述的控制方法，其特征在于：The control method according to claim 1, wherein:
    所述实际环境湿度为实际绝对湿度，根据采集的实际相对湿度和实际环境温度查询预设的温度-相对湿度-绝对湿度对应表得出；The actual ambient humidity is actual absolute humidity, which is obtained by querying a preset temperature-relative humidity-absolute humidity correspondence table according to the collected actual relative humidity and the actual ambient temperature;
    所述设定环境湿度为设定绝对湿度，根据预设的设定相对湿度和设定环境温度查询预设的温度-相对湿度-绝对湿度对应表得出。The set ambient humidity is a set absolute humidity, which is obtained by querying a preset temperature-relative humidity-absolute humidity correspondence table according to the preset set relative humidity and the set ambient temperature.
  4. 根据权利要求1所述的控制方法，其特征在于：所述设定时间段的取值范围为3分钟~30分钟。The control method according to claim 1, wherein the value of the set time period ranges from 3 minutes to 30 minutes.
  5. 根据权利要求1所述的控制方法，其特征在于：a的取值范围为0.1~0.9。The control method according to claim 1, wherein the value of a ranges from 0.1 to 0.9.
  6. 根据权利要求5所述的控制方法，其特征在于：a为0.7。The control method according to claim 5, wherein a is 0.7.
  7. 根据权利要求1所述的控制方法，其特征在于：b的取值范围为0~2℃。The control method according to claim 1, wherein the value of b ranges from 0 to 2 ° C.
  8. 根据权利要求1所述的控制方法，其特征在于：所述设定值的取值范围为0.1℃~5℃。The control method according to claim 1, wherein the value of the set value ranges from 0.1 ° C to 5 ° C.
  9. 根据权利要求8所述的控制方法，其特征在于：所述设定值为0.5℃。The control method according to claim 8, wherein the set value is 0.5 ° C.
  10. 一种水***空调控制方法，所述水***空调包括室外机和至少一台室内机，所述室外机的出水管分别与每个所述的室内机的进水管连接，所述室外机的进水管分别与每个所述的室内机的出水管连接；其特征在于：所述控制方法包括：A water system air conditioner control method. The water system air conditioner includes an outdoor unit and at least one indoor unit. A water outlet pipe of the outdoor unit is connected to a water inlet pipe of each of the indoor units. The water pipe is connected to the water outlet pipe of each indoor unit, and the control method includes:
    当水***空调开始制热运行时，或者在制热运行过程中室外机的目标出水温度重新设定时，则室外机的出水温度修正值=0，每个室内机的进水温度修正值=0；然后，每隔设定时间段执行下述步骤：When the water system air conditioner starts heating operation, or when the target outlet temperature of the outdoor unit is reset during the heating operation, the outlet water temperature correction value = 0, and the inlet water temperature correction value of each indoor unit = 0; then, perform the following steps every set time period:
    （1）获取每台室内机的实际环境温度、设定环境温度、以及在该设定时间段内的开机时间占比；(1) Obtain the actual ambient temperature, set ambient temperature of each indoor unit, and the proportion of startup time in the set time period;
    （2）根据每台室内机的开机时间占比、实际环境温度、设定环境温度确定室内机的进水温度修正值：(2) Determine the inlet water temperature correction value of the indoor unit according to the proportion of each unit's startup time, the actual ambient temperature, and the set ambient temperature:
    （21）对于开机时间占比∈[0,a)的室内机，该室内机的进水温度修正值减小设定值；(21) For an indoor unit with a startup time ratio ∈ [0, a), the inlet water temperature correction value of the indoor unit is reduced by a set value;
    其中，0<a<1；Among them, 0 <a <1;
    （22）对于开机时间占比∈[a,1)的室内机，该室内机的进水温度修正值维持不变；(22) For the indoor unit with the startup time ratio ∈ [a, 1), the correction value of the inlet water temperature of the indoor unit remains unchanged;
    （23）对于开机时间占比=1且实际环境温度与设定环境温度之差＞b的室内机，该室内机的进水温度修正值维持不变；其中，b＞0；(23) For an indoor unit with a startup time ratio of = 1 and the difference between the actual ambient temperature and the set ambient temperature> b, the correction value of the inlet water temperature of the indoor unit remains the same; where b> 0;
    （24）对于开机时间占比=1且实际环境温度与设定环境温度之差≤b的室内机，该室内机的进水温度修正值增大设定值；(24) For the indoor unit with the startup time ratio = 1 and the difference between the actual ambient temperature and the set ambient temperature ≤ b, the inlet water temperature correction value of the indoor unit is increased by the set value;
    （3）比较所有室内机的进水温度修正值，选出其中的最大值作为室外机的出水温度修正值；(3) Compare the correction values of the inlet water temperature of all indoor units, and select the maximum value as the correction value of the outlet water temperature of the outdoor unit;
    （4）采用室外机的出水温度修正值修正室外机的目标出水温度，根据修正后的目标出水温度控制水***空调的运行。(4) Use the outlet temperature correction value of the outdoor unit to correct the target outlet temperature of the outdoor unit, and control the operation of the water system air conditioner based on the corrected target outlet temperature.
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