CN113739383A - Cold machine control method and system based on thermal comfort model - Google Patents
Cold machine control method and system based on thermal comfort model Download PDFInfo
- Publication number
- CN113739383A CN113739383A CN202111015114.XA CN202111015114A CN113739383A CN 113739383 A CN113739383 A CN 113739383A CN 202111015114 A CN202111015114 A CN 202111015114A CN 113739383 A CN113739383 A CN 113739383A
- Authority
- CN
- China
- Prior art keywords
- temperature
- value
- cold machine
- thermal comfort
- terminal equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a cold machine control method, a cold machine control system, electronic equipment and a storage medium based on a thermal comfort model, wherein the method comprises the following steps: obtaining basic building data, and obtaining a thermal comfort level of a building and a reference temperature range of the terminal equipment corresponding to the thermal comfort level according to the basic building data; acquiring actual temperature values of all terminal equipment in the building every other preset time period; calculating the temperature standard reaching rate of all the terminal equipment according to the reference temperature range and the actual temperature value; and calculating a revised value of the water temperature of the refrigerator according to the temperature standard reaching rate, and controlling the operation of the refrigerator according to the revised value of the water temperature of the refrigerator. The invention determines the temperature reference range through the thermal comfort level of the building, corrects the water temperature set value of the refrigerator according to the deviation of the actual temperature value and the temperature reference value, and reduces the energy consumption on the premise of not reducing the comfort level of a user.
Description
Technical Field
The invention relates to the technical field of control of a central air conditioner cooler, in particular to a method and a system for controlling a cooler based on a thermal comfort model, electronic equipment and a storage medium.
Background
At present, building energy consumption is parallel to industrial energy consumption and traffic energy consumption, becomes three major energy consumption households in China, and particularly the building energy consumption is in a sharp trend along with the continuous rising of the total amount of buildings and the rising of living comfort. The building energy consumption comprises the following steps: building energy consumption, living energy consumption, heating and air conditioning and the like, wherein the largest energy consumption is heating and air conditioning.
At present, two energy-saving control modes for a central air-conditioning system are provided, the first mode is a mode of directly turning off the central air-conditioning system during a demand response period, and the other mode is a mode of increasing the set temperature at the tail end of the central air-conditioning system by changing the water outlet temperature or the water outlet speed of a cooling unit, but the experience effect of a user is necessarily reduced by simply carrying out load reduction.
Disclosure of Invention
The invention provides a cold machine control method, a cold machine control system, electronic equipment and a storage medium based on a thermal comfort model, which can reduce energy consumption without reducing the experience effect of a user.
The invention provides a cold machine control method based on a thermal comfort model, which comprises the following steps:
obtaining basic building data, and obtaining a thermal comfort level of a building and a reference temperature range of the terminal equipment corresponding to the thermal comfort level according to the basic building data;
acquiring actual temperature values of all terminal equipment in the building every other preset time period;
calculating the temperature standard reaching rate of all the terminal equipment according to the reference temperature range and the actual temperature value;
and calculating a revised value of the water temperature of the refrigerator according to the temperature standard reaching rate, and controlling the operation of the refrigerator according to the revised value of the water temperature of the refrigerator.
Further, the calculating of the revision value of the water temperature of the refrigerator according to the temperature achievement rate includes:
judging whether the temperature standard-reaching rate is not less than a preset temperature standard-reaching rate threshold value or not;
if so, recording the terminal equipment meeting the actual temperature value within the reference temperature range in the terminal equipment as standard terminal equipment;
calculating the revision step length of the water temperature of the cold machine according to the temperature margin value of the up-to-standard tail end equipment and a preset temperature regulation correction value;
calculating a cold machine water temperature revision value according to the cold machine water temperature revision step length and the cold machine water temperature original set value;
if not, marking the terminal equipment which meets the minimum deviation degree of the actual temperature value from the end value of the reference temperature range as reference terminal equipment;
calculating the revision step length of the water temperature of the refrigerator according to the temperature superscalar value of the reference terminal equipment and the preset temperature regulation correction value;
and calculating a cold machine water temperature revision value according to the cold machine water temperature revision step length and the cold machine water temperature original set value.
Further, the obtaining of the thermal comfort level of the building and the reference temperature range of the terminal device corresponding to the thermal comfort level according to the building basic data includes:
judging the operation condition of the cold machine according to the external temperature value of the building and the working condition of the cold machine; wherein, the cold machine working condition comprises: cooling working condition and heating working condition;
and inputting the operation condition of the cold machine and the basic building data into a thermal comfort level model to obtain a thermal comfort level and a reference temperature range of the terminal equipment corresponding to the thermal comfort level.
Further, the cooling working condition is as follows: the building external temperature value is higher than a first preset temperature value; the heat supply working condition is as follows: and the temperature value outside the building is lower than a second preset temperature value.
Further, the thermal comfort level and the reference temperature range of the end device corresponding to the thermal comfort level include:
the first grade of hot comfort degree under the cooling operating mode, with the reference temperature range of the terminal equipment that hot comfort degree first grade corresponds under the cooling operating mode does: 24-26 ℃;
the second grade of thermal comfort degree under the cooling working condition, with the reference temperature range of the terminal equipment that the second grade of thermal comfort degree corresponds under the cooling working condition is: 27-28 ℃;
the first grade of thermal comfort degree under the heat supply operating mode, with the reference temperature range of the terminal equipment that the first grade of thermal comfort degree corresponds under the heat supply operating mode is: 22-24 ℃;
the second grade of thermal comfort degree under the heat supply working condition, with the reference temperature range of the terminal equipment that the second grade of thermal comfort degree corresponds under the heat supply working condition is: 18 ℃ to 21 ℃.
The second aspect of the present invention provides a chiller control system based on a thermal comfort model, including:
the reference temperature range acquisition module is used for acquiring basic building data and acquiring the thermal comfort level of the building and the reference temperature range of the terminal equipment corresponding to the thermal comfort level according to the basic building data;
the system comprises an actual temperature value acquisition module, a temperature value acquisition module and a temperature value acquisition module, wherein the actual temperature value acquisition module is used for acquiring actual temperature values of all terminal equipment in the building every other preset time period;
the temperature standard-reaching rate calculation module is used for calculating the temperature standard-reaching rates of all the terminal equipment according to the reference temperature range and the actual temperature value;
and the cold machine water temperature set value adjusting module is used for calculating a cold machine water temperature revision value according to the temperature standard reaching rate and controlling the cold machine to operate according to the cold machine water temperature revision value.
Further, the cold machine water temperature set value adjusting module is further configured to:
judging whether the temperature standard-reaching rate is not less than a preset temperature standard-reaching rate threshold value or not;
if so, recording the terminal equipment meeting the actual temperature value within the reference temperature range in the terminal equipment as standard terminal equipment;
calculating the revision step length of the water temperature of the cold machine according to the temperature margin value of the up-to-standard tail end equipment and a preset temperature regulation correction value;
calculating a cold machine water temperature revision value according to the cold machine water temperature revision step length and the cold machine water temperature original set value;
if not, marking the terminal equipment which meets the minimum deviation degree of the actual temperature value from the end value of the reference temperature range as reference terminal equipment;
calculating the revision step length of the water temperature of the refrigerator according to the temperature superscalar value of the reference terminal equipment and the preset temperature regulation correction value;
and calculating a cold machine water temperature revision value according to the cold machine water temperature revision step length and the cold machine water temperature original set value.
Further, the reference temperature range obtaining module is further configured to:
judging the operation condition of the cold machine according to the external temperature value of the building and the working condition of the cold machine; wherein, the cold machine working condition comprises: cooling working condition and heating working condition;
and inputting the operation condition of the cold machine and the basic building data into a thermal comfort level model to obtain a thermal comfort level and a reference temperature range of the terminal equipment corresponding to the thermal comfort level.
A third aspect of the present invention provides an electronic device, which includes multiple processors, a memory, and a computer program stored in the memory and executable on the processors, and when the processors execute the computer program, the processors implement any one of the thermal comfort model-based cold machine control methods provided in the first aspect.
A fourth aspect of the present invention provides a computer storage medium having computer instructions for executing any one of the thermal comfort model-based chiller control methods as provided in the first aspect.
Compared with the prior art, the embodiment of the invention has the beneficial effects that:
the invention provides a cold machine control method, a cold machine control system, electronic equipment and a storage medium based on a thermal comfort model, wherein the method comprises the following steps: obtaining basic building data, and obtaining a thermal comfort level of a building and a reference temperature range of the terminal equipment corresponding to the thermal comfort level according to the basic building data; acquiring actual temperature values of all terminal equipment in the building every other preset time period; calculating the temperature standard reaching rate of all the terminal equipment according to the reference temperature range and the actual temperature value; and calculating a revised value of the water temperature of the refrigerator according to the temperature standard reaching rate, and controlling the operation of the refrigerator according to the revised value of the water temperature of the refrigerator. The invention determines the temperature reference range through the thermal comfort level of the building, corrects the water temperature set value of the refrigerator according to the deviation of the actual temperature value and the temperature reference value, and reduces the energy consumption on the premise of not reducing the comfort level of a user.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a block diagram of a central air conditioning system according to an embodiment of the present invention;
fig. 2 is a flowchart of a cold machine control method based on a thermal comfort model according to embodiment 1 of the present invention;
fig. 3 is a flowchart of a cold machine control method based on a thermal comfort model according to embodiment 2 of the present invention;
fig. 4 is a flowchart of a cold machine control method based on a thermal comfort model according to embodiment 3 of the present invention;
fig. 5 is a device diagram of a chiller control system based on a thermal comfort model according to embodiment 4 of the present invention;
fig. 6 is a block diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be understood that the step numbers used herein are for convenience of description only and are not intended as limitations on the order in which the steps are performed.
It is to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The terms "comprises" and "comprising" indicate the presence of the described features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The term "and/or" refers to and includes any and all possible combinations of one or more of the associated listed items.
A first aspect.
Referring to fig. 1, an embodiment of the present invention provides a central air conditioning system, including: the cloud refrigerator control system 100, a refrigerator group 200 consisting of a plurality of refrigerators and a terminal equipment group 300 consisting of a plurality of terminal equipment; wherein, the cold air machine group 200 comprises: the first cooler, the second cooler and the third cooler are respectively an Nth cooler; the end device group 300 includes: a first end device, a second end device, a third end device, an Nth end device.
The cloud refrigerator control system 100 is configured to control all refrigerators in the refrigerator group 200, and the control mode is wireless transmission control, including but not limited to: a WIFI, BT, zigbee or NB-IoT network. The cloud refrigerator control system 100 is further configured to control all the end devices in the end device group 300 in a wireless transmission control manner, including but not limited to: a WIFI, BT, zigbee or NB-IoT network.
Referring to fig. 1 and 2, in embodiment 1 of the present invention, the cloud-based refrigerator control system 100 executes a thermal comfort model-based refrigerator control method, where the method includes:
s10, obtaining basic building data, and obtaining the thermal comfort level of the building and the reference temperature range of the terminal equipment corresponding to the thermal comfort level according to the basic building data.
It should be noted that the basic building data includes, but is not limited to: the building type (such as office buildings, hospitals, airports, shopping malls, hotels and other indoor places needing to be controlled by a central air conditioner) can be used for knowing the residence time of the user in the indoor places. The building basic data is stored in the cloud refrigerator control system 100 in advance.
Table 1 shows calculated parameters for air-conditioning rooms in a residential building's long stay area, which represent thermal comfort levels and their corresponding reference temperature range, relative humidity range, and wind speed range of the end devices.
TABLE 1
For the air conditioning indoor calculation parameters of the short-term staying area of the civil building, the requirements can be properly lowered on the basis of the long-term staying area parameters. For example: the indoor temperature of the air conditioner is preferably increased by 2 ℃ on the basis of the long-term staying area in summer, and the indoor temperature of the air conditioner is preferably decreased by 2 ℃ on the basis of the long-term staying area in winter. The short-term stay area refers to an area where people temporarily stay, and mainly comprises sightseeing places and commercial facilities such as shopping malls, stations, business halls, exhibition halls, bookstores and the like.
Dividing thermal comfort into two levels (level I and level II), wherein the level I thermal comfort is higher and the level II is lower; the grading is based on PMV index (predicted average heat sensation index), the range of PMV corresponding to I grade is-0.5 ≦ PMVS +0.5, and the range of PMV corresponding to II grade is-1 ≦ PMV < -0.5 and 0.5< PMVs 1.
In consideration of the limit of energy saving of the building, the indoor environment is required to be colder under the condition of satisfying comfort in winter and warmer under the condition of satisfying comfort in summer, so the concrete building grades are classified as table 2.
TABLE 2
| Thermal comfort level | Winter season | (Summer) |
| Class I | -0.5≤PMV≤0 | 0≤PMV≤0.5 |
| Stage II | -1≤PMV≤-0.5 | 0.5≤PMV≤1 |
It can be understood that the cloud refrigerator control system 100 obtains the thermal comfort level of the building and the reference temperature range of the end device corresponding to the thermal comfort level according to the building basic data.
For example, when the current season is summer, the cloud refrigerator control system 100 can know that the indoor building is a long-term stay indoor place according to the basic building data, the thermal comfort level is summer level i, and the reference temperature range is 24-26 ℃.
And S20, acquiring the actual temperature values of all terminal equipment in the building every preset time period.
It should be noted that the preset time period is a time period preset manually, and may be 30s (second), 1min (minute), 5min, 10min, and the like; and the preset time period can be adjusted at any time according to the requirement.
It can be understood that the cloud refrigerator control system 100 obtains the actual temperature value of the temperature sensor of the end device every preset time period. Specifically, the cloud refrigerator control system 100 sends an instruction for reading temperature sensor data of the end device to each end device in the end device group 300, and after each end device in the end device group 300 receives the instruction for reading the temperature sensor data of the end device, a data reading function is triggered, an actual temperature value of the temperature sensor is obtained, and the read actual temperature value is sent to the cloud refrigerator control system 100.
For example, the cloud refrigerator control system 100 obtains the actual temperature value of the temperature sensor of the end device every 5 minutes. Specifically, the cloud refrigerator control system 100 sends an instruction for reading temperature sensor data of the end device to each end device (a first end device, a second end device, a third end device · nth end device) in the end device group 300, and when the first end device receives the instruction for reading the temperature sensor data of the end device, the data reading function is triggered, the actual temperature value of the temperature sensor is obtained to be 25 ℃, and the read actual temperature value (25 ℃) is sent to the cloud refrigerator control system 100.
And S30, calculating the temperature standard reaching rate of all the terminal equipment according to the reference temperature range and the actual temperature value.
It should be noted that, the end equipment with the actual temperature value within the reference temperature range is defined as the end equipment with the standard, and the end equipment with the standard is countedThe number of end devices in the group of end devices and the number of all end devices in the group of end devices. Of all end devices
And the temperature standard reaching rate of the terminal equipment is more than or equal to 0 and less than or equal to 1.
It can be understood that the cloud refrigerator control system 100 counts the number of end devices with actual temperature values within the reference temperature range according to the relationship between the actual temperature value of each end device (the first end device, the second end device, the third end device · nth end device) in the end device group 300 and the reference temperature range.
For example, the actual temperature values of M end devices in the end device group 300 are within the reference temperature range, and the M end devices are defined as standard end devices.
Of all end devices
And S40, calculating a cold machine water temperature revision value according to the temperature standard reaching rate, and controlling the cold machine to operate according to the cold machine water temperature revision value.
It should be noted that different temperature achievement rates have different methods for calculating the revision value of the water temperature of the chiller, and the end device group 300 controls the operation of the chiller according to the calculated revision value of the water temperature of the chiller.
It can be understood that the cloud refrigerator control system 100 selects a refrigerator water temperature revision value calculation method corresponding to the temperature achievement rate according to the temperature achievement rate calculated in step S30, performs corresponding calculation, and controls the operation of the refrigerator according to the calculated refrigerator water temperature revision value.
The cold machine control method based on the thermal comfort model provided by the specific embodiment 1 of the present invention has the following beneficial effects:
the temperature reference range is determined according to the thermal comfort level of the building, the water temperature set value of the refrigerator is corrected according to the deviation of the actual temperature value and the temperature reference value, and the energy loss is reduced on the premise of not reducing the comfort level of a user.
Referring to fig. 1 and 3, in embodiment 2 of the present invention, the cloud-based refrigerator control system 100 executes a thermal comfort model-based refrigerator control method, and the step S40 includes:
s400, judging whether the temperature reaching rate is not less than a preset temperature reaching rate threshold value.
It should be noted that the preset temperature achievement rate threshold is set manually, and the preset temperature achievement rate threshold can be adjusted at any time according to needs.
It can be understood that the cloud refrigerator control system 100 compares the temperature achievement rate calculated according to the step S30 with the preset temperature achievement rate threshold, and obtains a comparison result.
And S411, if yes, recording the terminal equipment meeting the actual temperature value within the reference temperature range in the terminal equipment as the standard terminal equipment.
And S412, calculating the revision step length of the water temperature of the refrigerator according to the temperature margin value of the up-to-standard tail end equipment and the preset temperature regulation correction value.
It should be noted that the preset temperature adjustment correction value is set manually, and the preset temperature adjustment correction value can be adjusted at any time according to needs. The cold machine water temperature revision step length can be calculated according to the temperature margin value and the preset temperature regulation correction value.
The step of calculating the water temperature revision step length of the cold machine according to the temperature margin value of the up-to-standard tail end equipment and the preset temperature regulation correction value specifically comprises the following steps:
1. and calculating the temperature margin of the up-to-standard terminal equipment, and taking the minimum value. For the summer cooling working condition, the temperature allowance of the up-to-standard terminal equipment is equal to the terminal temperature upper limit-the terminal actual temperature; for the winter heating working condition, the temperature allowance of the up-to-standard terminal equipment is equal to the terminal actual temperature-terminal temperature lower limit.
2. And calculating the revision step length of the water temperature of the refrigerator. And subtracting the preset temperature regulation correction value from the temperature allowance of the up-to-standard tail end equipment to obtain the cold machine water temperature revision step length. If the step value is less than 0, 0 is selected.
And S413, calculating a cold machine water temperature revision value according to the cold machine water temperature revision step length and the original cold machine water temperature set value.
It should be noted that the original set value of the water temperature of the refrigerator is the current water temperature of the refrigerator; the step of calculating the cold machine water temperature revision value according to the cold machine water temperature revision step length and the cold machine water temperature original set value specifically comprises the following steps:
and for the cold supply working condition, the cold machine water temperature revision value is equal to the cold machine water temperature original set value and the cold machine water temperature revision step length. And for the heating working condition, the cold machine water temperature revision value is equal to the original cold machine water temperature set value-the cold machine water temperature revision step length.
It can be understood that, when the cloud refrigerator control system 100 obtains that the temperature achievement rate is greater than or equal to the preset temperature achievement rate threshold according to the comparison result obtained in step S400, the method for calculating the water temperature revision value of the refrigerator as in steps S411 to S413 is adopted.
For example, the preset temperature reaching rate threshold is 90%, the temperature reaching rate calculated by the cloud refrigerator control system 100 according to step S30 is 92%, the temperature reaching rate (92%) > the preset temperature reaching rate threshold (90%) is obtained according to the comparison result obtained in step S400, and the method for calculating the revised value of the water temperature of the refrigerator according to steps S411 to S413 is adopted, specifically:
taking cooling in summer as an example, the reference temperature range is [24 ℃, 26 ℃), and the end equipment in the end equipment group 300 which meets the actual temperature value in the reference temperature range is recorded as the standard-reaching end equipment. The temperature margin value of the up-to-standard terminal equipment is 0.5 ℃, and the revision step length of the water temperature of the refrigerator is 0.2 ℃ according to the preset temperature regulation correction value (0.3 ℃) of the up-to-standard terminal equipment. The original set value of the water temperature of the refrigerator is 7 ℃, and the revised value of the water temperature of the refrigerator is 7.2 ℃ according to the revised step length (0.2 ℃) of the water temperature of the refrigerator and the original set value (7 ℃) of the water temperature of the refrigerator.
And S421, if not, marking the terminal equipment which meets the minimum deviation degree of the actual temperature value from the reference temperature range end value in the terminal equipment as reference terminal equipment.
It should be noted that the deviation of the actual temperature value from the end of the reference temperature range is: the actual temperature value is less than the minimum value of the reference temperature range or the actual temperature value is greater than the maximum value of the reference temperature range.
The degree of the actual temperature value deviating from the reference temperature range end value is as follows: if the actual temperature value is smaller than the minimum value of the reference temperature range, the deviation degree is the difference value between the actual temperature value and the minimum value of the reference temperature range; if the actual temperature value is greater than the maximum value of the reference temperature range, the deviation degree is the difference value between the actual temperature value and the maximum value of the reference temperature range; it should be noted that the difference is a positive number, and if the difference is a negative number, the absolute value of the difference is taken.
The minimum deviation degree of the actual temperature value from the end value of the reference temperature range is the minimum difference value.
The terminal equipment with the minimum deviation degree of the actual temperature value from the end value of the reference temperature range is the equipment with the minimum difference value.
And S422, calculating the revision step length of the water temperature of the refrigerator according to the temperature superscalar value of the reference terminal equipment and the preset temperature regulation correction value.
It should be noted that the preset temperature adjustment correction value is set manually, and the preset temperature adjustment correction value can be adjusted at any time according to needs. The cold machine water temperature revision step size can be calculated according to the temperature margin value.
The step of calculating the water temperature revision step length of the cold machine according to the temperature superscale value of the reference terminal equipment and the preset temperature adjustment correction value specifically comprises the following steps:
and (4) the cold machine water temperature revision step length is equal to the difference value of the equipment with the minimum difference value, namely the preset temperature regulation correction value. If the step value is less than 0.2, 0.2 is selected.
And S423, calculating a cold machine water temperature revision value according to the cold machine water temperature revision step length and the original cold machine water temperature set value.
It should be noted that the original set value of the water temperature of the refrigerator is the current water temperature of the refrigerator; the step of calculating the cold machine water temperature revision value according to the cold machine water temperature revision step length and the cold machine water temperature original set value specifically comprises the following steps:
for the cold supply working condition, the cold machine water temperature revision value is equal to the original cold machine water temperature set value-the cold machine water temperature revision step length; and for the heating working condition, the cold machine water temperature revision value is equal to the original cold machine water temperature set value and the cold machine water temperature revision step length.
It can be understood that, when the cloud refrigerator control system 100 obtains the temperature reaching rate < the preset temperature reaching rate threshold according to the comparison result obtained in step S400, the method for calculating the water temperature revision value of the refrigerator in steps S421 to S423 is adopted.
For example, the preset temperature reaching rate threshold is 90%, the temperature reaching rate calculated by the cloud refrigerator control system 100 according to step S30 is 85%, the temperature reaching rate (85%) is less than the preset temperature reaching rate threshold (90%) according to the comparison result obtained in step S400, and the method for calculating the water temperature revision value of the refrigerator as in steps S421 to S423 is adopted, specifically:
taking the cooling condition in summer as an example, the reference temperature range is [24 ℃, 26 ℃), the actual temperature value in the end equipment group 300 is not in the reference temperature range, and the end equipment with the minimum degree between the actual temperature value and the end value of the reference temperature range is recorded as the reference end equipment, for example: the actual temperature value of the second end device is 26.5 deg.c, the actual temperature value of the second end device (26.5 deg.c) is greater than the maximum value of the reference temperature range (26 deg.c), the degree of deviation is 26.5-26-0.5 deg.c, and the degree of deviation is the minimum of all the substandard end devices, the second end device being defined as the reference end device. The preset temperature adjustment correction value of the reference terminal equipment is 0.3 ℃, and the water temperature revision step length of the refrigerator is calculated to be 0.2 ℃ according to the temperature over-standard value (0.5 ℃) of the reference terminal equipment. The original set value of the water temperature of the refrigerator is 8 ℃, and the revised value of the water temperature of the refrigerator is 7.8 ℃ according to the revised step length (0.2 ℃) of the water temperature of the refrigerator and the original set value (8 ℃) of the water temperature of the refrigerator.
The cold machine control method based on the thermal comfort model provided by the specific embodiment 2 of the present invention has the following beneficial effects:
the cold machine revision step length is calculated by using the preset temperature adjustment correction value of the tail end equipment, and the cold machine water temperature revision value is further calculated by using the cold machine revision step length, so that the accuracy of the cold machine revision value is improved, the reliability of adjusting the running cold machine is improved, and the control efficiency and the running efficiency of the cold machine are improved.
Referring to fig. 1 and 3, in embodiment 3 of the present invention, the cloud-based refrigerator control system 100 executes a thermal comfort model-based refrigerator control method, and the step S10 includes:
s11, judging the operation condition of the refrigerator according to the external temperature value of the building and the working condition of the refrigerator; wherein, the cold machine working condition comprises: cooling working condition and heating working condition.
It should be noted that the building external temperature value may be provided by a weather bureau or may be provided by a temperature sensor outside the building.
Preferably, the cooling condition is as follows: the building external temperature value is higher than a first preset temperature value; the heat supply working condition is as follows: and the temperature value outside the building is lower than a second preset temperature value.
It should be noted that the first preset temperature value is set manually, and the first preset temperature value can be adjusted at any time according to needs. The second preset temperature value is set manually, and can be adjusted at any time according to needs.
It can be understood that the central air conditioning system starts the cooling condition in summer or when the outside temperature of the building is higher than the first preset value; the central air-conditioning system starts the heating working condition in winter or when the temperature outside the building is lower than a second preset value.
S12, inputting the operation condition of the cold machine and the basic building data into a thermal comfort level model to obtain a thermal comfort level and a reference temperature range of the end equipment corresponding to the thermal comfort level.
It should be noted that the thermal comfort level model is a model that outputs a thermal comfort level and a reference temperature range of the end device corresponding to the thermal comfort level according to the operation condition of the cold machine and the basic building data; the thermal comfort model may be established by a machine learning algorithm or a deep learning algorithm.
Preferably, the first level of thermal comfort under the cooling condition, and the reference temperature range of the end device corresponding to the first level of thermal comfort under the cooling condition is: 24-26 ℃; the second grade of thermal comfort degree under the cooling working condition, with the reference temperature range of the terminal equipment that the second grade of thermal comfort degree corresponds under the cooling working condition is: 27-28 ℃; the first grade of thermal comfort degree under the heat supply operating mode, with the reference temperature range of the terminal equipment that the first grade of thermal comfort degree corresponds under the heat supply operating mode is: 22-24 ℃; the second grade of thermal comfort degree under the heat supply working condition, with the reference temperature range of the terminal equipment that the second grade of thermal comfort degree corresponds under the heat supply working condition is: 18 ℃ to 21 ℃.
The cold machine control method based on the thermal comfort model provided by the specific embodiment 3 of the present invention has the following beneficial effects:
through the thermal comfort model, temperature reference ranges of different working conditions can be obtained, the operation of the cold machine can be controlled according to the ranges, and the control efficiency and the operation efficiency of the cold machine are improved.
A second aspect.
Referring to fig. 1 and 5, in embodiment 4 of the present invention, the present invention provides a chiller control system based on a thermal comfort model, where the chiller control system is a subsystem of the cloud-based chiller control system 100. The control system includes:
the reference temperature range obtaining module 10 is configured to obtain basic building data, and obtain a thermal comfort level of the building and a reference temperature range of the end device corresponding to the thermal comfort level according to the basic building data.
And the actual temperature value acquisition module 20 is configured to acquire actual temperature values of all terminal devices inside the building every preset time period.
And the temperature standard-reaching rate calculation module 30 is configured to calculate the temperature standard-reaching rates of all the end devices according to the reference temperature range and the actual temperature value.
And the cold machine water temperature set value adjusting module 40 is used for calculating a cold machine water temperature revision value according to the temperature standard reaching rate and controlling the cold machine to operate according to the cold machine water temperature revision value.
In a specific embodiment of the present invention, the chiller water temperature set value adjusting module 40 is further configured to:
judging whether the temperature standard-reaching rate is not less than a preset temperature standard-reaching rate threshold value or not;
if so, recording the terminal equipment meeting the actual temperature value within the reference temperature range in the terminal equipment as standard terminal equipment;
calculating the revision step length of the water temperature of the refrigerator according to the temperature margin value of the up-to-standard terminal equipment;
calculating a cold machine water temperature revision value according to the cold machine water temperature revision step length and the cold machine water temperature original set value;
if not, marking the terminal equipment which meets the minimum deviation degree of the actual temperature value from the end value of the reference temperature range as reference terminal equipment;
calculating the revision step length of the water temperature of the refrigerator according to the temperature superscale value of the reference terminal equipment;
and calculating a cold machine water temperature revision value according to the cold machine water temperature revision step length and the cold machine water temperature original set value.
In a specific example of the embodiment of the present invention, the reference temperature range obtaining module 10 is further configured to:
judging the operation condition of the cold machine according to the external temperature value of the building and the working condition of the cold machine; wherein, the cold machine working condition comprises: cooling working condition and heating working condition;
and inputting the operation condition of the cold machine and the basic building data into a thermal comfort level model to obtain a thermal comfort level and a reference temperature range of the terminal equipment corresponding to the thermal comfort level.
Preferably, the cooling condition is as follows: the building external temperature value is higher than a first preset temperature value; the heat supply working condition is as follows: and the temperature value outside the building is lower than a second preset temperature value.
Preferably, the thermal comfort level and the reference temperature range of the end device corresponding to the thermal comfort level include:
the first grade of hot comfort degree under the cooling operating mode, with the reference temperature range of the terminal equipment that hot comfort degree first grade corresponds under the cooling operating mode does: 24-26 ℃; the second grade of thermal comfort degree under the cooling working condition, with the reference temperature range of the terminal equipment that the second grade of thermal comfort degree corresponds under the cooling working condition is: 27-28 ℃; the first grade of thermal comfort degree under the heat supply operating mode, with the reference temperature range of the terminal equipment that the first grade of thermal comfort degree corresponds under the heat supply operating mode is: 22-24 ℃; the second grade of thermal comfort degree under the heat supply working condition, with the reference temperature range of the terminal equipment that the second grade of thermal comfort degree corresponds under the heat supply working condition is: 18 ℃ to 21 ℃.
The cold machine control system based on the thermal comfort model provided by the embodiment 4 of the present invention has the following beneficial effects:
the invention determines the temperature reference range through the thermal comfort level of the building, corrects the water temperature set value of the refrigerator according to the deviation of the actual temperature value and the temperature reference value, and reduces the energy consumption on the premise of not reducing the comfort level of a user.
In a third aspect.
The present invention provides an electronic device, including:
a processor, a memory, and a bus;
the bus is used for connecting the processor and the memory;
the memory is used for storing operation instructions;
the processor is configured to call the operation instruction, and the executable instruction enables the processor to perform an operation corresponding to the thermal comfort model-based chiller control method as shown in the first aspect of the present application.
In an alternative embodiment, an electronic device is provided, as shown in fig. 6, the electronic device 5000 shown in fig. 6 includes: a processor 5001 and a memory 5003. The processor 5001 and the memory 5003 are coupled, such as via a bus 5002. Optionally, the electronic device 5000 may also include a transceiver 5004. It should be noted that the transceiver 5004 is not limited to one in practical application, and the structure of the electronic device 5000 is not limited to the embodiment of the present application.
The processor 5001 may be a CPU, general purpose processor, DSP, ASIC, FPGA or other programmable logic device, transistor logic device, hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor 5001 may also be a combination of processors implementing computing functionality, e.g., a combination comprising one or more microprocessors, a combination of DSPs and microprocessors, or the like.
The memory 5003 may be, but is not limited to, a ROM or other type of static storage device that can store static information and instructions, a RAM or other type of dynamic storage device that can store information and instructions, an EEPROM, a CD-ROM or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
The memory 5003 is used for storing application program codes for executing the present solution, and the execution is controlled by the processor 5001. The processor 5001 is configured to execute application program code stored in the memory 5003 to implement the teachings of any of the foregoing method embodiments.
Among them, electronic devices include but are not limited to: mobile terminals such as mobile phones, notebook computers, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and the like, and fixed terminals such as digital TVs, desktop computers, and the like.
A fourth aspect.
The invention provides a computer storage medium, which has computer instructions for implementing a thermal comfort model-based cold machine control method according to the first aspect of the present application.
Claims (10)
1. A cold machine control method based on a thermal comfort model is characterized by comprising the following steps:
obtaining basic building data, and obtaining a thermal comfort level of a building and a reference temperature range of the terminal equipment corresponding to the thermal comfort level according to the basic building data;
acquiring actual temperature values of all terminal equipment in the building every other preset time period;
calculating the temperature standard reaching rate of all the terminal equipment according to the reference temperature range and the actual temperature value;
and calculating a revised value of the water temperature of the refrigerator according to the temperature standard reaching rate, and controlling the operation of the refrigerator according to the revised value of the water temperature of the refrigerator.
2. The chiller control method based on thermal comfort model according to claim 1, wherein said calculating a chiller water temperature revision according to said temperature achievement rate comprises:
judging whether the temperature standard-reaching rate is not less than a preset temperature standard-reaching rate threshold value or not;
if so, recording the terminal equipment meeting the actual temperature value within the reference temperature range in the terminal equipment as standard terminal equipment;
calculating the revision step length of the water temperature of the cold machine according to the temperature margin value of the up-to-standard tail end equipment and a preset temperature regulation correction value;
calculating a cold machine water temperature revision value according to the cold machine water temperature revision step length and the cold machine water temperature original set value;
if not, marking the terminal equipment which meets the minimum deviation degree of the actual temperature value from the end value of the reference temperature range as reference terminal equipment;
calculating the revision step length of the water temperature of the refrigerator according to the temperature superscalar value of the reference terminal equipment and the preset temperature regulation correction value;
and calculating a cold machine water temperature revision value according to the cold machine water temperature revision step length and the cold machine water temperature original set value.
3. The method according to claim 1, wherein the obtaining a thermal comfort level of a building and a reference temperature range of an end device corresponding to the thermal comfort level according to the building basic data comprises:
judging the operation condition of the cold machine according to the external temperature value of the building and the working condition of the cold machine; wherein, the cold machine working condition comprises: cooling working condition and heating working condition;
and inputting the operation condition of the cold machine and the basic building data into a thermal comfort level model to obtain a thermal comfort level and a reference temperature range of the terminal equipment corresponding to the thermal comfort level.
4. A cold machine control method based on thermal comfort model according to claim 3, characterized by that, the cold supply working condition is: the building external temperature value is higher than a first preset temperature value; the heat supply working condition is as follows: and the temperature value outside the building is lower than a second preset temperature value.
5. A thermal comfort model-based chiller control method according to claim 3, wherein the thermal comfort level and the reference temperature range of the end-point device corresponding to the thermal comfort level comprise:
the first grade of hot comfort degree under the cooling operating mode, with the reference temperature range of the terminal equipment that hot comfort degree first grade corresponds under the cooling operating mode does: 24-26 ℃;
the second grade of thermal comfort degree under the cooling working condition, with the reference temperature range of the terminal equipment that the second grade of thermal comfort degree corresponds under the cooling working condition is: 27-28 ℃;
the first grade of thermal comfort degree under the heat supply operating mode, with the reference temperature range of the terminal equipment that the first grade of thermal comfort degree corresponds under the heat supply operating mode is: 22-24 ℃;
the second grade of thermal comfort degree under the heat supply working condition, with the reference temperature range of the terminal equipment that the second grade of thermal comfort degree corresponds under the heat supply working condition is: 18 ℃ to 21 ℃.
6. A cold machine control system based on a thermal comfort model, comprising:
the reference temperature range acquisition module is used for acquiring basic building data and acquiring the thermal comfort level of the building and the reference temperature range of the terminal equipment corresponding to the thermal comfort level according to the basic building data;
the system comprises an actual temperature value acquisition module, a temperature value acquisition module and a temperature value acquisition module, wherein the actual temperature value acquisition module is used for acquiring actual temperature values of all terminal equipment in the building every other preset time period;
the temperature standard-reaching rate calculation module is used for calculating the temperature standard-reaching rates of all the terminal equipment according to the reference temperature range and the actual temperature value;
and the cold machine water temperature set value adjusting module is used for calculating a cold machine water temperature revision value according to the temperature standard reaching rate and controlling the cold machine to operate according to the cold machine water temperature revision value.
7. The chiller control system according to claim 6 wherein said chiller water temperature setpoint adjustment module is further configured to:
judging whether the temperature standard-reaching rate is not less than a preset temperature standard-reaching rate threshold value or not;
if so, recording the terminal equipment meeting the actual temperature value within the reference temperature range in the terminal equipment as standard terminal equipment;
calculating the revision step length of the water temperature of the cold machine according to the temperature margin value of the up-to-standard tail end equipment and a preset temperature regulation correction value;
calculating a cold machine water temperature revision value according to the cold machine water temperature revision step length and the cold machine water temperature original set value;
if not, marking the terminal equipment which meets the minimum deviation degree of the actual temperature value from the end value of the reference temperature range as reference terminal equipment;
calculating the revision step length of the water temperature of the refrigerator according to the temperature superscalar value of the reference terminal equipment and the preset temperature regulation correction value;
and calculating a cold machine water temperature revision value according to the cold machine water temperature revision step length and the cold machine water temperature original set value.
8. A thermal comfort model based chiller control system according to claim 6 wherein said reference temperature range acquisition module is further configured to:
judging the operation condition of the cold machine according to the external temperature value of the building and the working condition of the cold machine; wherein, the cold machine working condition comprises: cooling working condition and heating working condition;
and inputting the operation condition of the cold machine and the basic building data into a thermal comfort level model to obtain a thermal comfort level and a reference temperature range of the terminal equipment corresponding to the thermal comfort level.
9. An electronic device, comprising a plurality of processors, a memory, and a computer program stored in the memory and executable on the processors, wherein the processors implement the thermal comfort model-based cold machine control method according to any one of claims 1 to 5 when executing the computer program.
10. A computer storage medium having computer instructions for performing a thermal comfort model based chiller control method according to any of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111015114.XA CN113739383B (en) | 2021-08-31 | 2021-08-31 | Cold machine control method and system based on thermal comfort model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111015114.XA CN113739383B (en) | 2021-08-31 | 2021-08-31 | Cold machine control method and system based on thermal comfort model |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113739383A true CN113739383A (en) | 2021-12-03 |
| CN113739383B CN113739383B (en) | 2022-10-11 |
Family
ID=78734353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111015114.XA Active CN113739383B (en) | 2021-08-31 | 2021-08-31 | Cold machine control method and system based on thermal comfort model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113739383B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012002444A (en) * | 2010-06-17 | 2012-01-05 | Toshiba Carrier Corp | Air conditioning system |
| CN103743057A (en) * | 2013-11-26 | 2014-04-23 | 中山市蓝水能源科技发展有限公司 | Central air-conditioning energy-saving control system |
| JP2014194290A (en) * | 2013-03-28 | 2014-10-09 | Fujitsu Advanced Engineering Ltd | Air conditioner set temperature calculation device, air conditioner set temperature calculation program, and air conditioner set temperature calculation method |
| CN104102789A (en) * | 2014-07-28 | 2014-10-15 | 重庆大学 | System and method for evaluating building hot and humid environment levels |
| CN104456841A (en) * | 2014-11-13 | 2015-03-25 | 重庆大学 | Thermal and humid environment integrated control air-conditioning system and method based on thermal comfort evaluation |
| CN107247407A (en) * | 2017-07-11 | 2017-10-13 | 浙江中易和节能技术有限公司 | A kind of big data self-teaching Correction and Control system and method based on cloud framework |
| CN109140713A (en) * | 2018-10-26 | 2019-01-04 | 广东美的制冷设备有限公司 | Air conditioner and its control method, control device, readable storage medium storing program for executing |
| CN109945443A (en) * | 2019-04-28 | 2019-06-28 | 郑州春泉节能股份有限公司 | Concentrate the energy-saving control method and system of energy supply |
-
2021
- 2021-08-31 CN CN202111015114.XA patent/CN113739383B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012002444A (en) * | 2010-06-17 | 2012-01-05 | Toshiba Carrier Corp | Air conditioning system |
| JP2014194290A (en) * | 2013-03-28 | 2014-10-09 | Fujitsu Advanced Engineering Ltd | Air conditioner set temperature calculation device, air conditioner set temperature calculation program, and air conditioner set temperature calculation method |
| CN103743057A (en) * | 2013-11-26 | 2014-04-23 | 中山市蓝水能源科技发展有限公司 | Central air-conditioning energy-saving control system |
| CN104102789A (en) * | 2014-07-28 | 2014-10-15 | 重庆大学 | System and method for evaluating building hot and humid environment levels |
| CN104456841A (en) * | 2014-11-13 | 2015-03-25 | 重庆大学 | Thermal and humid environment integrated control air-conditioning system and method based on thermal comfort evaluation |
| CN107247407A (en) * | 2017-07-11 | 2017-10-13 | 浙江中易和节能技术有限公司 | A kind of big data self-teaching Correction and Control system and method based on cloud framework |
| CN109140713A (en) * | 2018-10-26 | 2019-01-04 | 广东美的制冷设备有限公司 | Air conditioner and its control method, control device, readable storage medium storing program for executing |
| CN109945443A (en) * | 2019-04-28 | 2019-06-28 | 郑州春泉节能股份有限公司 | Concentrate the energy-saving control method and system of energy supply |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113739383B (en) | 2022-10-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113739359B (en) | Energy-saving control method and device for central air-conditioning system and central air-conditioning system | |
| EP3992538A1 (en) | Air conditioner control method and apparatus, and computer-readable storage medium | |
| CN103604191B (en) | Many people based on mobile phone software platform participate in public air-conditioner temperature regulator control system | |
| CN104236020B (en) | Method and device for controlling air conditioning system | |
| CN107726567B (en) | Control method and system of fresh air machine, fresh air machine and multi-split air conditioning system | |
| CN112283893A (en) | Method and device for controlling air conditioner and air conditioner | |
| CN110107998B (en) | Energy-saving control method, equipment and medium for multi-connected cold and hot water unit | |
| CN111895582A (en) | Compressor control method and device and air conditioning system | |
| CN109307358A (en) | A kind of air-conditioner control system and method | |
| CN108317685B (en) | Air conditioner control method and air conditioner terminal | |
| CN112283834B (en) | Chilled water outlet temperature control method and device for water chilling unit | |
| CN110186162B (en) | Air conditioner control method and device | |
| CN105737340B (en) | A kind of air-conditioner temperature intelligent control method and device | |
| CN113739383B (en) | Cold machine control method and system based on thermal comfort model | |
| JP6979606B2 (en) | Air conditioner control device, air conditioner control method, and program | |
| CN115654647B (en) | Air conditioning system, control method and device thereof, storage medium and electronic equipment | |
| CN107894076B (en) | Multi-split air conditioning system, energy-saving control method and device thereof and storage medium | |
| CN110307616B (en) | Temperature control equipment and control method and device thereof | |
| CN111637604B (en) | Air conditioner control method and air conditioner | |
| CN112393382A (en) | Method for improving energy conservation of air conditioner operation | |
| WO2023231560A1 (en) | Method and apparatus for controlling air conditioner, air conditioner, and storage medium | |
| CN108981108A (en) | Air-conditioning temperature control method, storage medium and computer equipment | |
| CN115183390B (en) | Air conditioner control method, air conditioner and storage medium | |
| CN114811890B (en) | Method and device for controlling air conditioner, air conditioner and storage medium | |
| JP2012225547A (en) | Air conditioner, air conditioning method and program |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |