CN111664500B - Heating temperature control method and device, computer equipment and readable storage medium - Google Patents

Heating temperature control method and device, computer equipment and readable storage medium Download PDF

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Publication number
CN111664500B
CN111664500B CN202010397700.4A CN202010397700A CN111664500B CN 111664500 B CN111664500 B CN 111664500B CN 202010397700 A CN202010397700 A CN 202010397700A CN 111664500 B CN111664500 B CN 111664500B
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heating
temperature
water temperature
outlet
value
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CN111664500A (en
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不公告发明人
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SHENZHEN ALLIED CONTROL SYSTEM CO Ltd
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SHENZHEN ALLIED CONTROL SYSTEM CO Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00Details
    • F24D19/10Arrangement or mounting of control or safety devices
    • F24D19/1006Arrangement or mounting of control or safety devices for water heating systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00Heat sources or energy sources
    • F24D2200/04Gas or oil fired boiler
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]

Abstract

The invention is suitable for the technical field of heating equipment control, and provides a heating temperature control method, a heating temperature control device, computer equipment and a readable storage medium, wherein the method comprises the following steps: acquiring the heating outlet water temperature and the heating return water temperature at the current moment according to a preset time interval; calculating a heating outlet water temperature expected value according to the heating outlet water temperature and the heating return water temperature at the current moment and/or the heating outlet water temperature and the heating return water temperature at the historical moment; and adjusting the heating load until the heating water outlet temperature at the current moment reaches the expected heating water outlet temperature value. The heating temperature control method provided by the invention can solve the problem that the temperature controller is difficult to install, and improves the comfort of heating.

Description

Heating temperature control method and device, computer equipment and readable storage medium
Technical Field
The invention belongs to the technical field of heating equipment control, and particularly relates to a heating temperature control method and device, computer equipment and a readable storage medium.
Background
In the field of household heating, a gas heating water heater is undoubtedly a common heating universal device. The gas heating water heater has a strong household central heating function and can meet the heating requirements of multiple rooms. The gas heating water heater plays an important role in daily heating of people in cold regions.
Specifically, the heat preservation function of the gas heating water heater is influenced by two factors, namely local climate conditions and the heat preservation condition of the building. When the existing gas heating water heater is used for heating, the heating water outlet temperature is mainly controlled. Namely, the temperature of heating effluent is set first, and the combustion power is controlled to make the water temperature reach the set value. The main problem with this control is that when the external environment changes, such as outdoor temperature changes or a user switches and adjusts the flow of a valve, the changes cannot be responded to, thereby reducing comfort and energy savings. In order to solve the technical problem, the existing partial gas heating water heater can effectively solve the problems by matching with a room temperature controller or an outdoor temperature compensation device.
However, the room temperature controller and the outdoor temperature compensating device are difficult to install in some systems, and this undoubtedly increases the difficulty of controlling the heating temperature in consideration of the cost problems of the room temperature controller and the outdoor temperature compensating device, and on the basis of this, it is necessary to provide a completely new heating temperature control method.
Disclosure of Invention
The embodiment of the invention provides a heating temperature control method, aiming at solving the problems that in the prior art, the cost for controlling the heating temperature and the control efficiency of the heating temperature are reduced.
The embodiment of the invention is realized in such a way, and provides a heating temperature control method, wherein the method comprises the following steps:
acquiring the heating water outlet temperature and the heating water return temperature at the current moment according to a preset time interval;
calculating a heating outlet water temperature expected value according to the heating outlet water temperature and the heating return water temperature at the current moment and/or the heating outlet water temperature and the heating return water temperature at the historical moment;
and adjusting the heating load until the heating water outlet temperature at the current moment reaches the expected heating water outlet temperature value.
The method for controlling the heating temperature comprises the following steps of:
and carrying out proportional integral differential calculation on the difference value between the expected heating return water temperature value and the heating return water temperature at the current moment to obtain the expected heating outlet water temperature value.
The method for controlling the heating temperature comprises the following steps of:
calculating the difference value between the heating water outlet temperature at the current moment and the heating return water temperature at the current moment; and calculating the product of a preset constant and the difference value;
and calculating the sum of the product and the expected room heating temperature value to obtain the expected heating outlet water temperature value.
The method for controlling the heating temperature comprises the following steps of:
taking the heating backwater temperature at the historical moment as output, taking the heating water outlet temperature at the historical moment as input, establishing a differential equation model, and taking the room temperature as a constant term parameter in the model;
identifying the model according to the sampling values of the heating return water temperature and the heating outlet water temperature at the historical moment of a period of time, and acquiring the room temperature at the current moment;
and carrying out proportional integral differential calculation on the difference value between the room heating temperature expected value and the room temperature at the current moment to obtain the heating outlet water temperature expected value.
The method for controlling the heating temperature comprises the following steps of:
inputting the heating outlet water temperature and the heating return water temperature at the current moment into a temperature prediction model to obtain the room temperature at the current moment;
and carrying out proportional integral differential calculation on the difference value between the room heating temperature expected value and the room temperature at the current moment to obtain the heating outlet water temperature expected value.
The heating temperature control method comprises the following steps of:
acquiring heating outlet water temperature and heating return water temperature at each moment in the historical moments and room temperature values corresponding to the heating outlet water temperature and the heating return water temperature respectively;
and carrying out model training according to the heating outlet water temperature and the heating return water temperature at each moment and the corresponding room temperature values respectively to obtain the temperature prediction model.
The invention also provides a heating temperature control device, wherein the device comprises:
the acquisition unit is used for acquiring the heating outlet water temperature and the heating return water temperature at the current moment according to the preset time interval;
the calculation unit is used for calculating a heating outlet water temperature expected value according to the heating outlet water temperature and the heating return water temperature at the current moment and/or the heating outlet water temperature and the heating return water temperature at the historical moment;
and the adjusting unit is used for adjusting the heating load so that the heating outlet water temperature at the current moment reaches the expected heating outlet water temperature value.
The heating temperature control device, wherein the computing unit is further configured to:
and carrying out proportional integral differential calculation on the difference value between the expected heating return water temperature value and the heating return water temperature at the current moment to obtain the expected heating outlet water temperature value.
The heating temperature control device, wherein the computing unit is further configured to:
calculating the difference value between the heating water outlet temperature at the current moment and the heating return water temperature at the current moment; and calculating the product of a preset constant and the difference value;
and calculating the sum of the product and the expected room heating temperature value to obtain the expected heating outlet water temperature value.
The heating temperature control device, wherein the computing unit is further configured to:
taking the heating backwater temperature at the historical moment as output, taking the heating water outlet temperature at the historical moment as input, establishing a differential equation model, and taking the room temperature as a constant term parameter in the model;
identifying the model according to the sampling values of the heating return water temperature and the heating outlet water temperature at the historical moment of a period of time, and acquiring the room temperature at the current moment;
and carrying out proportional integral differential calculation on the difference value between the room heating temperature expected value and the room temperature at the current moment to obtain the heating outlet water temperature expected value.
The heating temperature control device, wherein the computing unit is further configured to:
inputting the heating outlet water temperature and the heating return water temperature at the current moment into a temperature prediction model to obtain the room temperature at the current moment;
and carrying out proportional integral differential calculation on the difference value between the room heating temperature expected value and the room temperature at the current moment to obtain the heating outlet water temperature expected value.
The heating temperature control device further comprises a temperature prediction unit, wherein the temperature prediction unit is used for:
acquiring heating outlet water temperature and heating return water temperature at each moment in the historical moments and room temperature values corresponding to the heating outlet water temperature and the heating return water temperature respectively;
and carrying out model training according to the heating outlet water temperature and the heating return water temperature at each moment and the corresponding room temperature values respectively to obtain the temperature prediction model.
The invention also provides a computer device, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the computer program to realize the heating temperature control method.
The invention also provides a readable storage device, wherein the readable storage medium stores a computer program, and the computer program is executed by a processor to realize the heating temperature control method.
According to the heating temperature control method, the heating temperature control device, the computer equipment and the storage medium, firstly, the heating outlet water temperature and the heating return water temperature at the current moment are obtained according to the preset time interval; then, calculating a heating outlet water temperature expected value according to the heating outlet water temperature and the heating return water temperature at the current moment and/or the heating outlet water temperature and the heating return water temperature at the historical moment; and adjusting the heating load until the heating water outlet temperature at the current moment reaches the expected heating water outlet temperature value. Compared with the prior art that the heating temperature is controlled by matching a room temperature controller or an outdoor temperature compensation device, the invention can also realize the control of the outlet water temperature without matching the room temperature controller and the outdoor temperature compensation device, namely, the invention calculates the expected value of the heating outlet water temperature according to the heating outlet water temperature and the heating return water temperature at the current moment and/or the heating outlet water temperature and the heating return water temperature at the historical moment, and regulates the heating outlet water temperature according to the expected value of the outlet water temperature, thereby reducing the cost of heating temperature control and the control efficiency of the heating temperature, ensuring the comfort of heating and ensuring the relatively stable room temperature.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only embodiments of the invention, and that other drawings can be derived from the provided drawings by a person skilled in the art without inventive effort.
Fig. 1 is a flowchart of a heating temperature control method according to a first embodiment of the present invention;
fig. 2 is a method for calculating a desired value of a temperature of heating water according to a second embodiment of the present invention;
fig. 3 is a method for calculating a desired value of a temperature of heating water according to a third embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating the room temperature effect predicted by the response characteristics of the return water temperature to the outlet water temperature in the third embodiment of the present invention;
fig. 5 is a method for calculating a desired value of a heating water temperature according to a fourth embodiment of the present invention;
fig. 6 is a schematic structural view of a heating temperature control apparatus according to a fifth embodiment of the present invention;
fig. 7 is a schematic structural view of a heating temperature control apparatus according to a sixth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
When the external environment changes, such as outdoor temperature changes or a user switches and adjusts the flow of a certain valve, the existing partial gas heating water heater cannot respond to the changes, so that the use comfort and the energy saving performance are reduced. In order to solve the technical problem, the existing partial gas heating water heater can effectively solve the problems by matching with a room temperature controller or an outdoor temperature compensation device. However, the room temperature controller and the outdoor temperature compensating device are difficult to install in some systems. This undoubtedly increases the difficulty of controlling the heating temperature. In addition, in the prior art, the wireless temperature controller is also installed in the gas heating water heater to control the temperature of the outlet water, but the cost is undoubtedly increased by the method.
The first embodiment is as follows:
in order to solve the above technical problem, the present invention provides a method for controlling heating temperature, referring to fig. 1, for a method for controlling heating temperature according to a first embodiment of the present invention, including the following steps:
and S110, acquiring the heating water outlet temperature and the heating return water temperature at the current moment according to a preset time interval.
In order to solve the problem that the temperature of heating water cannot be well adjusted due to the fact that a room temperature controller cannot be installed inside a heating water heater in the prior art. In the invention, a return water probe which can be arranged inside the gas heating hot water furnace is used for detecting the return water temperature, and the response of the return water temperature to the outlet water temperature is utilized to predict the room temperature, thereby regulating the heating outlet water temperature. Thereby relatively stabilizing the room temperature and improving the comfort of heating.
In the invention, the outlet water temperature of the heating water heater is firstly appointed to be TsReturn water temperature of TbRoom temperature of TrOutdoor temperature of To. Specifically, in this step, the heating outlet water temperature and the heating return water temperature at the current time are obtained according to the preset time interval. It should be noted that the preset time interval can be set according to actual conditions.
And S120, calculating the expected heating water temperature value according to the heating water temperature and the heating return water temperature at the current moment and/or the heating water temperature and the heating return water temperature at the historical moment.
In the step, as one implementation manner, the expected heating outlet water temperature value is calculated according to a constant return water temperature method.
As described above, after the heating outlet water temperature and the heating return water temperature at the current time are obtained, calculation needs to be performed by combining the previously obtained heating outlet water temperature and the previously obtained heating return water temperature at the historical time.
Specifically, a user firstly sets a heating backwater temperature expected value TbAnd set, wherein the step of setting the expected value of the temperature of the heating return water does not participate in feedback iteration of specific calculation.
Then, the expected heating return water temperature value is differed with the heating return water temperature at the current moment to obtain a return water temperature difference Tb_set-Tb. The temperature difference T of the return waterb_set-TbAs an input, the leaving water temperature desired value is taken as an output. For the return water temperature difference Tb_set-TbAnd calculating to obtain the expected value of the temperature of the heating outlet water by adopting a PID proportional-integral-derivative algorithm.
Specifically, the expression of the desired value of the heating outlet water temperature is as follows:
Ts phase=PID(Tb_set-Tb)
Wherein, Ts phaseThe temperature is the expected value of the heating water outlet temperature.
And S130, adjusting the heating load until the heating water outlet temperature at the current moment reaches the expected heating water outlet temperature value.
As described above, in step S120, after the desired heating outlet water temperature value is calculated by the constant return water temperature method, the heating load is adjusted so that the heating outlet water temperature at the current time reaches the desired heating outlet water temperature value, thereby implementing reasonable control of the heating temperature.
Compared with the prior method for controlling the heating temperature by matching a room temperature controller or an outdoor temperature compensation device, the method can also realize the control of the outlet water temperature without matching the room temperature controller and the outdoor temperature compensation device, namely, the method calculates the expected value of the heating outlet water temperature according to the heating outlet water temperature and the heating return water temperature at the current moment and/or the heating outlet water temperature and the heating return water temperature at the historical moment, and regulates the heating outlet water temperature according to the expected value of the outlet water temperature, thereby reducing the cost of heating temperature control and the control efficiency of the heating temperature, and ensuring the comfort of heating to ensure that the room temperature is relatively stable.
Example two:
as another embodiment, referring to fig. 2, a second embodiment of the present invention provides a method for calculating a desired value of a heating outlet water temperature, and in particular, a return difference temperature compensation method, including the following steps:
s210, calculating a difference value between the heating water outlet temperature at the current moment and the heating return water temperature at the current moment, and calculating a product of a preset constant and the difference value.
As mentioned above, the heating outlet water temperature T at the current moment is obtained every preset timesAnd heating return water temperature Tb. Then the obtained heating water outlet temperature T is measuredsAnd heating return water temperature TbThe difference is made.
It should be noted that, in this step, preset constants B and k are introduced. The constant B represents a room heating temperature expected value, k represents a heat dissipation constant, namely a heat dissipation coefficient related parameter of the heat sink to the room, and the constant is a fixed value set by an installer or a user according to the room temperature requirement and the heat dissipation coefficient.
And S220, calculating the sum of the product and the expected room heating temperature value to obtain the expected heating outlet water temperature value.
In this embodiment, the calculation formula of the desired heating outlet water temperature value is as follows:
Ts phase=B+k*(Ts-Tb)
The principle of the back temperature compensation method is illustrated below by a specific example.
For example, when the system is already balanced, the heating leaving water temperature TsAnd maintained unchanged. If the external environment changes, such as the outdoor temperature ToIncreasing, then the room temperature TrWith a consequent increase. Room temperature TrIncreasing the heating water outlet temperature TsIf the temperature is not changed, the heat radiation of the heating gas water heater to the room is reduced, so the return water temperature T is reducedbAnd (4) increasing.
Due to the return water temperature TbIncreasing the temperature T of the discharged watersIf not, the return difference temperature Ts-TbAnd decreases. Calculated according to the above formula provided in this embodiment, the outlet water temperature TsNeed to be reduced. If the temperature T of the discharged watersDecrease, then after a period of time the room temperature TrAnd therewith also reduces, counteracting the previous room temperature TrIs increased, and finally reaches the new equilibrium, the room temperature TrThe change is small (if the parameters k and B are appropriate) or even kept unchanged.
Therefore, the return difference temperature compensation method according to the second embodiment of the present invention can also control the heating temperature well.
Example three:
as another embodiment, referring to fig. 3, a third embodiment of the present invention provides a method for calculating an expected value of a heating outlet temperature, and in particular, a method for predicting a room temperature, the method including the following steps:
s310, taking the heating return water temperature at the historical moment as output, taking the heating outlet water temperature at the historical moment as input, and establishing a difference equation model, wherein the room temperature is a constant term parameter in the model.
Firstly, at a certain moment in history, the room temperature at that moment is determined by the user according to the body feeling of the user and is used as a reference value, and the room temperature obtained at the moment is defined as a reference room temperature value TrSet. It should be noted here that the setting of the reference room temperature value does not participate in the actual data feedback iteration.
And S320, identifying the model according to the sampling values of the heating return water temperature and the heating outlet water temperature at the historical moment of a period of time, and obtaining the room temperature at the current moment.
As described in the above step S310, after the differential equation model is established using the heating return water temperature at the historical time as an output and the heating outlet water temperature at the historical time as an input, in this step, the difference equation model is obtained according to the heating return water temperature at the historical timeIdentifying the model by sampling values of the heating return water temperature and the heating outlet water temperature at the historical moment to obtain the room temperature T at the current momentr
Referring to fig. 4, fig. 4 is a schematic diagram illustrating the effect of room temperature predicted based on a model according to the response characteristics of the return water temperature to the outlet water temperature. Wherein, the line 3 represents the measured value of the room temperature, and the line 1 represents the estimated trend of the room temperature, which is a constant term in the model and can be expressed as: n ═ k × TrAnd k is the sum and difference calculation of other partial parameters in the model. The physical meaning of line 2 may be denoted as Tr=N/k。
And S330, performing proportional integral differential calculation on the difference value between the expected room heating temperature value and the room temperature at the current moment to obtain the expected heating outlet water temperature value.
In this step, the room temperature difference T is usedr_set-TrTaking the expected value of the outlet water temperature as an input, and adopting PID calculation to obtain the expected value of the outlet water temperature:
Ts phase=PID(Tr_set-Tr)
Similarly, after the expected heating water temperature value is obtained through calculation, the heating load is adjusted until the heating water temperature at the current moment reaches the expected heating water temperature value.
Example four:
as another implementation manner, referring to fig. 5, a fourth embodiment of the present invention provides a method for calculating an expected value of a heating outlet water temperature, including the following steps:
and S410, inputting the heating water outlet temperature and the heating return water temperature at the current moment into a temperature prediction model to obtain the room temperature at the current moment.
Specifically, in this step, the training method of the temperature prediction model includes the following steps:
s4101, acquiring heating water outlet temperature and heating return water temperature at each moment in historical moments, and respectively corresponding room temperature values.
S4102, performing model training according to the heating water outlet temperature and the heating water return temperature at each moment and the corresponding room temperature values respectively to obtain a temperature prediction model.
In the embodiment of the invention, the heating water outlet temperature and the heating return water temperature at each moment are used as training data, and the corresponding room temperature value is used as a training label to train the neural network model, so as to obtain the temperature prediction model. And then, the temperature of the room can be predicted through the temperature prediction model, and the specific heating outlet water temperature and the heating return water temperature from the later stage to the current moment are input into the temperature prediction model to obtain the room temperature at the current moment.
And S420, performing proportional integral differential calculation on the difference value between the expected room heating temperature value and the room temperature at the current moment to obtain the expected heating outlet water temperature value.
It should be noted that, in this step, the expected heating water temperature value can be calculated by using the difference between the expected room heating temperature value and the room temperature at the current time, and using the integral-derivative algorithm in the third embodiment. And will not be described in detail herein.
Example five:
referring to fig. 6, a fifth embodiment of the present invention provides a heating temperature control device, wherein the device includes an obtaining unit 11, a calculating unit 12, and an adjusting unit 13;
wherein the obtaining unit 11 is configured to:
acquiring the heating water outlet temperature and the heating water return temperature at the current moment according to a preset time interval;
the calculation unit 12 is configured to:
calculating a heating outlet water temperature expected value according to the heating outlet water temperature and the heating return water temperature at the current moment and/or the heating outlet water temperature and the heating return water temperature at the historical moment;
the adjustment unit 13 is used for:
and adjusting the heating load to enable the heating water outlet temperature at the current moment to reach the desired heating water outlet temperature value.
The calculation unit 12 is further configured to:
and carrying out proportional integral differential calculation on the difference value between the expected heating return water temperature value and the heating return water temperature at the current moment to obtain the expected heating outlet water temperature value.
The calculation unit 12 is further configured to:
calculating the difference value between the heating water outlet temperature at the current moment and the heating return water temperature at the current moment; and calculating the product of a preset constant and the difference value;
and calculating the sum of the product and the expected room heating temperature value to obtain the expected heating outlet water temperature value.
The calculation unit 12 is further configured to:
taking the heating backwater temperature at the historical moment as output, taking the heating water outlet temperature at the historical moment as input, establishing a differential equation model, and taking the room temperature as a constant term parameter in the model;
identifying the model according to the sampling values of the heating return water temperature and the heating outlet water temperature at the historical moment of a period of time, and acquiring the room temperature at the current moment;
and carrying out proportional integral differential calculation on the difference value between the room heating temperature expected value and the room temperature at the current moment to obtain the heating outlet water temperature expected value.
The calculation unit 12 is further configured to:
inputting the heating outlet water temperature and the heating return water temperature at the current moment into a temperature prediction model to obtain the room temperature at the current moment;
and carrying out proportional integral differential calculation on the difference value between the room heating temperature expected value and the room temperature at the current moment to obtain the heating outlet water temperature expected value.
Example six:
referring to fig. 7, a heating temperature control device according to a sixth embodiment of the present invention is provided, in which the device includes an obtaining unit 11, a calculating unit 12, an adjusting unit 13, and a temperature predicting unit 14;
the acquiring unit 11 is configured to acquire a heating outlet water temperature and a heating return water temperature at a current time according to a preset time interval;
the calculation unit 12 is used for calculating a heating outlet water temperature expected value according to the heating outlet water temperature and the heating return water temperature at the current moment and/or the heating outlet water temperature and the heating return water temperature at the historical moment;
and the adjusting unit 13 is used for adjusting the heating load so that the heating water outlet temperature at the current moment reaches the expected heating water outlet temperature value.
The temperature prediction unit 14 is configured to:
acquiring heating outlet water temperature and heating return water temperature at each moment in the historical moments and room temperature values corresponding to the heating outlet water temperature and the heating return water temperature respectively;
and carrying out model training according to the heating outlet water temperature and the heating return water temperature at each moment and the corresponding room temperature values respectively to obtain the temperature prediction model.
The invention also provides a computer device, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the computer program to realize the heating temperature control method.
The invention also provides a readable storage device, wherein the readable storage medium stores a computer program, and the computer program is executed by a processor to realize the heating temperature control method.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
A1, a method for controlling heating temperature, wherein the method comprises the following steps:
acquiring the heating water outlet temperature and the heating water return temperature at the current moment according to a preset time interval;
calculating a heating outlet water temperature expected value according to the heating outlet water temperature and the heating return water temperature at the current moment and/or the heating outlet water temperature and the heating return water temperature at the historical moment;
and adjusting the heating load until the heating water outlet temperature at the current moment reaches the expected heating water outlet temperature value.
A2, the method for controlling heating temperature according to A1, wherein the method for calculating the expected value of the heating outlet water temperature according to the heating outlet water temperature and the return water temperature at the current moment comprises the following steps:
and carrying out proportional integral differential calculation on the difference value between the expected heating return water temperature value and the heating return water temperature at the current moment to obtain the expected heating outlet water temperature value.
A3, the method for controlling heating temperature according to A1, wherein the method for calculating the expected value of the heating outlet water temperature according to the heating outlet water temperature and the return water temperature at the current moment comprises the following steps:
calculating the difference value between the heating water outlet temperature at the current moment and the heating return water temperature at the current moment; and calculating the product of a preset constant and the difference value;
and calculating the sum of the product and the expected room heating temperature value to obtain the expected heating outlet water temperature value.
A4, the method for controlling heating temperature according to A1, wherein the method for calculating the expected value of the heating outlet water temperature according to the heating outlet water temperature and the heating return water temperature at the current moment, and the heating outlet water temperature and the heating return water temperature at the historical moment comprises the following steps:
taking the heating backwater temperature at the historical moment as output, taking the heating water outlet temperature at the historical moment as input, establishing a differential equation model, and taking the room temperature as a constant term parameter in the model;
identifying the model according to the sampling values of the heating return water temperature and the heating outlet water temperature at the historical moment of a period of time, and acquiring the room temperature at the current moment;
and carrying out proportional integral differential calculation on the difference value between the room heating temperature expected value and the room temperature at the current moment to obtain the heating outlet water temperature expected value.
A5, the method for controlling heating temperature according to A1, wherein the method for calculating the expected value of the heating outlet water temperature according to the heating outlet water temperature and the heating return water temperature at the current moment, and the heating outlet water temperature and the heating return water temperature at the historical moment comprises the following steps:
inputting the heating outlet water temperature and the heating return water temperature at the current moment into a temperature prediction model to obtain the room temperature at the current moment;
and carrying out proportional integral differential calculation on the difference value between the room heating temperature expected value and the room temperature at the current moment to obtain the heating outlet water temperature expected value.
A6, the method for controlling heating temperature according to A5, wherein the method for training the temperature prediction model comprises the following steps:
acquiring heating outlet water temperature and heating return water temperature at each moment in the historical moments and room temperature values corresponding to the heating outlet water temperature and the heating return water temperature respectively;
and carrying out model training according to the heating outlet water temperature and the heating return water temperature at each moment and the corresponding room temperature values respectively to obtain the temperature prediction model.
B1, a control device for heating temperature, wherein the device comprises:
the acquisition unit is used for acquiring the heating outlet water temperature and the heating return water temperature at the current moment according to the preset time interval;
the calculation unit is used for calculating a heating outlet water temperature expected value according to the heating outlet water temperature and the heating return water temperature at the current moment and/or the heating outlet water temperature and the heating return water temperature at the historical moment;
and the adjusting unit is used for adjusting the heating load so that the heating water outlet temperature at the current moment reaches the expected heating water outlet temperature value.
B2, the control device of heating temperature according to B1, wherein the computing unit is further used for:
and carrying out proportional integral differential calculation on the difference value between the expected heating return water temperature value and the heating return water temperature at the current moment to obtain the expected heating outlet water temperature value.
C1, a computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor when executing the computer program implements the heating temperature control method according to any one of a1 to a 6.
D1, a readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the heating temperature control method according to any one of a1 to a 6.

Claims (7)

1. A heating temperature control method is characterized by comprising the following steps:
acquiring the heating water outlet temperature and the heating water return temperature at the current moment according to a preset time interval;
calculating a heating outlet water temperature expected value according to the heating outlet water temperature and the heating return water temperature at the current moment and/or the heating outlet water temperature and the heating return water temperature at the historical moment; the calculation method comprises the following steps: carrying out proportional integral differential calculation on the difference value between the expected heating return water temperature value and the heating return water temperature at the current moment to obtain the expected heating outlet water temperature value;
adjusting heating load until the heating water outlet temperature at the current moment reaches the desired heating water outlet temperature value;
the method for calculating the expected value of the heating water outlet temperature according to the heating water outlet temperature and the heating water return temperature at the current moment and the heating water outlet temperature and the heating water return temperature at the historical moment further comprises the following steps:
taking the heating return water temperature at the historical moment as output, taking the heating outlet water temperature at the historical moment as input, establishing a differential equation model, wherein the room temperature is a constant term parameter in the model, and is obtained by calculation according to a room temperature measurement value and a room temperature change trend;
identifying the model according to the sampling values of the heating return water temperature and the heating outlet water temperature at the historical moment of a period of time, and acquiring the room temperature at the current moment;
and carrying out proportional integral differential calculation on the difference value between the room heating temperature expected value and the room temperature at the current moment to obtain the heating outlet water temperature expected value.
2. The heating temperature control method according to claim 1, wherein the method for calculating the expected heating outlet water temperature value according to the heating outlet water temperature and the return heating water temperature at the current time comprises the following steps:
calculating the difference value between the heating water outlet temperature at the current moment and the heating return water temperature at the current moment; and calculating the product of a preset constant and the difference value;
and calculating the sum of the product and the expected heating temperature value of the room to obtain the expected heating outlet water temperature value.
3. The heating temperature control method according to claim 1, wherein the method for calculating the expected heating outlet water temperature value according to the heating outlet water temperature and the heating return water temperature at the current time and the heating outlet water temperature and the heating return water temperature at the historical time further comprises the following steps:
inputting the heating outlet water temperature and the heating return water temperature at the current moment into a temperature prediction model to obtain the room temperature at the current moment;
and carrying out proportional integral differential calculation on the difference value between the room heating temperature expected value and the room temperature at the current moment to obtain the heating outlet water temperature expected value.
4. The heating temperature control method according to claim 3, wherein the training method of the temperature prediction model is:
acquiring heating outlet water temperature and heating return water temperature at each moment in the historical moments and room temperature values corresponding to the heating outlet water temperature and the heating return water temperature respectively;
and carrying out model training according to the heating outlet water temperature and the heating return water temperature at each moment and the corresponding room temperature values respectively to obtain the temperature prediction model.
5. A heating temperature control apparatus, comprising:
the acquisition unit is used for acquiring the heating outlet water temperature and the heating return water temperature at the current moment according to the preset time interval;
the computing unit is used for computing a heating outlet water temperature expected value according to the heating outlet water temperature and the heating return water temperature at the current moment and/or the heating outlet water temperature and the heating return water temperature at the historical moment; the calculation method comprises the following steps: carrying out proportional integral differential calculation on the difference value between the expected heating return water temperature value and the heating return water temperature at the current moment to obtain the expected heating outlet water temperature value;
the adjusting unit is used for adjusting the heating load so that the heating water outlet temperature at the current moment reaches the expected heating water outlet temperature value;
the computing unit is further to:
taking the heating return water temperature at the historical moment as output, taking the heating outlet water temperature at the historical moment as input, establishing a differential equation model, wherein the room temperature is a constant term parameter in the model, and is obtained by calculation according to a room temperature measurement value and a room temperature change trend;
identifying the model according to the sampling values of the heating return water temperature and the heating outlet water temperature at the historical moment of a period of time, and acquiring the room temperature at the current moment;
and carrying out proportional integral differential calculation on the difference value between the room heating temperature expected value and the room temperature at the current moment to obtain the heating outlet water temperature expected value.
6. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the heating temperature control method according to any one of claims 1 to 4 when executing the computer program.
7. A readable storage device including a readable storage medium storing a computer program, wherein the computer program is executed by a processor to implement the heating temperature control method according to any one of claims 1 to 4.
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CN112902290A (en) * 2021-01-26 2021-06-04 宁波方太厨具有限公司 Heating water outlet control method, device, equipment, medium and heating system

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