CN115451620A - Control method of heat pump system and heat pump system - Google Patents
Control method of heat pump system and heat pump system Download PDFInfo
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- CN115451620A CN115451620A CN202211173740.6A CN202211173740A CN115451620A CN 115451620 A CN115451620 A CN 115451620A CN 202211173740 A CN202211173740 A CN 202211173740A CN 115451620 A CN115451620 A CN 115451620A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/40—Control of fluid heaters characterised by the type of controllers
- F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
- F24H15/421—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
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- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Computer Hardware Design (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a control method of a heat pump system and the heat pump system, comprising the following steps: s1, storing a set water temperature curve Y1 and a corrected water temperature curve Y2 in a heat pump system before delivery; s2, determining the set water temperature value T of the outdoor temperature according to the outdoor temperature T1 and the set water temperature curve Y1 Is provided with (ii) a S3, when the indoor temperature T0 is less than the first predicted value T Measuring Then T is Is provided with = target set water temperature value T Eyes of a user If not, performing step S4; s4, determining an indoor temperature correction water temperature value T according to the indoor temperature T0 and the correction water temperature curve Y2 Repair the (ii) a S5, setting the water temperature value T according to the outdoor temperature Is provided with Correcting water temperature value T by indoor temperature Repair the Calculating a target set water temperature value T Eyes of a person . When the unit is started, the target set water temperature value is calculated by setting the water temperature curve Y1 and correcting the water temperature curve Y2 according to the detected indoor temperature and outdoor temperature.
Description
Technical Field
The invention relates to the technical field of heat supply and energy conservation, in particular to a control method of a heat pump system and the heat pump system.
Background
The air source heat pump is widely popularized and applied in the current environment with energy conservation and emission reduction, but the air source heat pump needs to artificially sense outdoor temperature and then artificially select a working mode, and also needs to artificially set return water temperature in different working modes, so that a control system is complex, and operation and use difficulties are increased for general household users.
The prior art discloses a heat pump based on a temperature curve, a control device and a control method, which comprise the following steps: the method comprises the steps of controlling the temperature of a water tank and the working mode of a heat pump, setting the return water temperature according to the outdoor temperature and controlling the heat pump device to work at intervals. A heat pump control device based on a temperature curve comprises a temperature sensor and a central controller unit which are arranged on a heat pump device. However, in the prior art, the outdoor temperature is adopted to set the backwater temperature, and if other heat sources exist indoors, the backwater temperature value is set to be higher by adopting the outdoor temperature, so that resources are wasted, and the comfort level of a user is reduced.
Disclosure of Invention
In view of the above, the present invention is directed to a method for controlling a heat pump system and a heat pump system. Adopt outdoor temperature to set for return water temperature with solving prior art, if there are other heat sources indoor, adopt outdoor temperature to set for the return water temperature value higher this moment, not only resource-wasting leads to the problem that user's comfort level reduces moreover.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a method of controlling a heat pump system, comprising the steps of:
s1, storing a set water temperature curve Y1 and a corrected water temperature curve Y2 in a heat pump system before delivery;
s2, determining the set water temperature value T of the outdoor temperature according to the outdoor temperature T1 and the set water temperature curve Y1 Is provided with ；
S3, when the indoor temperature T0 is less than the first predicted value T Side survey Then T is Is provided with = target set water temperature value T Eyes of a person If the opposite is true, step S4 is carried out;
s4, determining the corrected indoor temperature value T according to the indoor temperature T0 and the corrected water temperature curve Y2 Repair the ；
S5, setting the water temperature value T according to the outdoor temperature Is provided with Correcting water temperature value T with indoor temperature Repair the Calculating a target set water temperature value T Eyes of a person . The invention can set the target set water temperature through the outdoor temperature, and can also set the target set water temperature according to the indoor temperature and the outdoor temperature, when other heat sources are used indoors, the indoor temperature is too high, so that the higher temperature does not need to be set, and the effects of saving energy and improving the comfort level of users are achieved by combining the indoor temperature and the outdoor temperature.
Further, the setting of the water temperature profile Y1 in step S1 includes:
s101: determining a first outdoor temperature A1 value and a corresponding first set water temperature D1 value according to test data of the outdoor working condition I;
s102: according to the test data of the outdoor working condition II, a second outdoor temperature A2 value and a corresponding second set water temperature D2 value are determined;
...
s10n: determining An nth outdoor temperature An value and a corresponding nth set water temperature Dn value according to test data of the outdoor working condition n;
s10n1, determining a set water temperature curve Y1 based on a series of points (A1, D1), (A2, D2). (An, dn). In the unit development stage, data obtained through a series of tests are made into curves, and the curves are stored in a chip, so that the follow-up use is facilitated.
Further, the correction of the water temperature profile Y2 in step S1 includes:
s111: determining a first indoor temperature E1 value and a corresponding first corrected water temperature G1 value according to test data of the indoor working condition I;
s112: according to the test data of the indoor working condition II, determining a second indoor temperature E2 value and a corresponding second corrected water temperature G2 value;
...
s11n: determining an nth indoor temperature En value and a corresponding nth corrected water temperature Gn value according to test data of an indoor working condition n;
s11n1, determining a corrected water temperature curve Y2 based on the series of points (E1, G1), (E2, G2). In the unit development stage, data obtained through a series of tests are made into curves, and the curves are stored in a chip, so that the follow-up use is facilitated.
Further, step S2 includes:
s21, starting the unit, and determining the set outdoor temperature value T according to the outdoor temperature T1 and the curve Y1 when the automatic mode is selected Is provided with When the manual mode is selected, step S22 is performed;
s22, re-correcting the curve Y1 to obtain a curve Y11;
s23, determining the set outdoor temperature value T according to the outdoor temperature T1 and the curve Y11 Is provided with 。
When the target set water temperature is set according to the outdoor temperature, the outdoor temperature can be automatically set to a water temperature curve, and the outdoor temperature can also be manually set according to a user.
Further, T in step S5 Eyes of a person Is calculated by the formula T Eyes of a user ＝T Is provided with -T Repair the 。
Further, the step S2 includes the steps of starting the unit, calling the set water temperature curve Y1, and calculating the corresponding set outdoor temperature water temperature value T according to the current outdoor temperature T1 Is provided with 。
Further, the step S4 includes the steps of starting the unit, calling the corrected water temperature curve Y2, and calculating the corresponding indoor temperature corrected water temperature value T according to the indoor temperature T0 at the starting time Repair the 。
Further, the difference Gn-G1 is controlled to be 3-5 ℃. The higher the indoor temperature is, the higher the correction temperature is, in order to avoid that the correction value is too high, the set temperature is too small and can not meet the actual requirement, therefore, the difference value of the correction water temperature is in the range of 3-5, and the effect is optimal.
Further, step S22 includes acquiring the outdoor temperature a0 and the user-set water temperature b0, and re-correcting the Y1 curve according to the point (a 0, b 0) to obtain the curve Y11. The curve is corrected according to the user setting, so that the error of the set water temperature value is small
Compared with the prior art, the control method of the heat pump system has the following advantages:
1) The heat pump system provides hot water according to the temperature set by the user, when the user does not determine the set temperature value, the control method is adopted, the set water temperature curve and the corrected water temperature curve are stored in the chip, the unit is started, the corresponding curve in the chip can be automatically adjusted, and the final target set water temperature is obtained through the calculation program of the target set water temperature value according to the detected indoor temperature and the outdoor temperature value.
2) According to an initial curve before the unit leaves a factory, according to the outdoor temperature and the corresponding set water temperature, when a user sets manually, the curve can be automatically corrected, the target set water temperature is calculated through the corrected curve and the detected current outdoor temperature, and the error of the final set water temperature is reduced. And when other heat sources are started indoors, the indoor temperature is high, and the control method not only saves energy, but also improves the comfort of users.
The invention also provides a heat pump system and a control method using the heat pump system.
Compared with the prior art, the heat pump system and the control method of the heat pump system have the same advantages, and the detailed description is omitted.
Drawings
Fig. 1 is a schematic flow chart of a control method of a heat pump system of the present invention;
FIG. 2 is a first set water temperature curve of the control method of the heat pump system according to the present invention;
FIG. 3 is a second set water temperature diagram of the control method of the heat pump system according to the present invention;
FIG. 4 is a third set water temperature profile of the control method of the heat pump system of the present invention;
fig. 5 is a corrected water temperature map of the control method of the heat pump system of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Examples
The invention relates to a control method of a heat pump system, as shown in figure 1, the heat pump system is adopted, the heat pump system provides hot water according to the temperature set by a user, and the control method specifically comprises the following implementation modes:
the set water temperature curve Y1 and the corrected water temperature curve Y2 are stored in the heat pump system before leaving a factory, the unit obtains a series of points including the set water temperature corresponding to the outdoor temperature and the corrected water temperature corresponding to the indoor temperature according to test data in a development stage, the set water temperature curve and the corrected water temperature curve are made, and the set water temperature curve and the corrected water temperature curve are stored in a chip.
Specifically, the set water temperatures corresponding to different outdoor temperatures are different, and the higher the outdoor temperature is, the lower the set water temperature is, therefore, in the development stage of the unit, when the user selects the automatic mode, the set water temperature corresponding to the outdoor temperature is measured through experiments, a graph of the set water temperature varying with the outdoor temperature is made as shown in fig. 2, and the curve is stored in a chip of the heat pump system, and includes a first set water temperature D corresponding to a first outdoor temperature a and a second set water temperature corresponding to a second outdoor temperature, that is, two points (a, D), (B, C), specifically, the curve includes two end points which are a first stable segment, a descending segment, and a second stable segment, and the two end points (a, D), (B, C) are the descending segment.
If the outdoor temperature is X1 and the water temperature is Y1, two points (A, D), (B, C) can be obtained, and a curve corresponding to the descending section can be obtained according to the two points:
Y1＝(X1-B)×(D-C)/(A-B)+C
when A is less than or equal to X1 and less than or equal to B, X1 is calculated according to the formula, namely (A, D) and (B, C) are two end points of the curve;
when X1 > B, the second stable segment is Y1= C;
when X1 < a, the first stable segment is Y1= D.
When the unit is started to use, when the user selects the automatic mode, the set water temperature value is calculated according to the outdoor temperature T1 and the curve Y1.
When the user selects the manual mode, a new set curve can be fitted on the basis of the steps according to the habit of the user, and the specific method is as follows:
if the user selects the manual mode, the initial curve Y1 needs to be corrected to reduce the error of the set water temperature, and the corrected curve is shown in fig. 3:
as shown in fig. 3, the corrected curve is stored in the chip of the heat pump system, and the curve includes a first set water temperature D corresponding to the first outdoor temperature a, a second set water temperature C corresponding to the second outdoor temperature B, and a third set water temperature B0 corresponding to the third outdoor temperature a0, namely, three points (a, D), (B, C), (a 0, B0).
Specifically, the curve includes a first stable segment, a first descending segment, a second descending segment, and a second stable segment, where (a, D), (a 0, B0) are two endpoint values of the first descending segment, and (a 0, B0), (B, C) are two endpoint values of the second descending segment.
If the outdoor temperature is X11 and the water temperature is Y11, two points (A, D), (a 0, b 0) can be obtained, and according to the two points, a curve corresponding to a second descending segment can be obtained:
when A < X11 < a0, the corresponding curve formula is as follows: y11= (X11-a 0) × (D-b 0)/(A-a 0) + b0
The curve corresponding to the descending segment is:
when a0 is more than or equal to X11 and is more than or equal to B, the corresponding curve formula is as follows: y11= (X11-B) × (B0-C)/(a 0-B) + C
And generating a new curve, starting the curve next time, if the user selects the automatic mode, setting Y11 according to the curve, and if the user only needs to manually set a temperature value in the later period, continuously correcting the curve, wherein the temperature value comprises the outdoor temperature and the set water temperature, the outdoor temperature can be automatically obtained, and the set water temperature needs to be set by the user.
For example, the user manually sets a set temperature value once again, the corresponding point is N1 (a 1, b 1), where a1 is the fourth outdoor temperature and b0 is the fourth set water temperature value, and first determines between which two outdoor temperatures a1 is corrected. If the value of the outer ring temperature a1 corresponding to N1 is between a0 and B, the newly generated graph is shown in fig. 4 as follows:
as shown in fig. 4, the curve is stored in the chip of the heat pump system, and includes a first set water temperature D corresponding to the first outdoor temperature a, a second set water temperature C corresponding to the second outdoor temperature B, a third set water temperature B0 corresponding to the third outdoor temperature a0, and a fourth set water temperature B1 corresponding to the fourth outdoor temperature a1, that is, four points (a, D), (B, C), (a 0, B0), and (a 1, B1).
Specifically, the curve includes a first stable section, a first descending section, a second descending section, and a second stable section, where (a 0, B0), (a 1, B1) are two end points of the first descending section, and (a 1, B1), (B, C) are two end points of the second descending section.
Setting the outdoor temperature as X1 and the water temperature as Y1, when a0 is more than or equal to X1 and more than or equal to a1, obtaining a curve formula corresponding to a first descending section II according to two points (a 0, b 0) and (a 1, b 1) as follows: y1"= (X1 ″ -a 1) × (b 0-b 1)/(a 0-a 1) + b1;
when a1 is less than or equal to X1 and less than or equal to B, according to two points (a 1, B1) and (B, C), a curve formula of a second descending section II can be obtained as follows: y1"= (X1" -B) × (B1-C)/(a 1-B) + C.
Similarly, as long as the outdoor temperature and the corresponding set water temperature are obtained, the curve of the last time can be corrected by adopting manual setting, when in correction, the outdoor temperature is firstly found out between which two outdoor temperatures which participate in the correction, then a straight line between the two points is broken, and a new point is inserted; if the user automatically sets the water temperature, the set water temperature can be calculated according to the curve corrected by the last manual setting, and the accuracy of setting the water temperature through the outdoor temperature under the condition that the indoor temperature is constant is improved.
Specifically, the unit is started, the outdoor temperature T1 is detected, the outdoor temperature T1 is called to correspond to a set temperature curve, and the set outdoor temperature water temperature T is determined according to the temperature curve relation between the outdoor temperature T1 and the set water temperature Is provided with 。
Judging whether the indoor temperature T0 is larger than a first predicted value T Side survey If not, T Is provided with = target set water temperature value T Eyes of a user If yes, the indoor temperature is over high, and at the moment, a target set water temperature value T needs to be calculated according to the indoor temperature and the outdoor temperature To achieve the purpose.
Specifically, if there is no other heat source used indoors, the indoor temperature T0 is less than the first predicted value T The measurement is carried out on the basis of the measured value, the target set water temperature value can be obtained only through the outdoor temperature. The set water temperature curve can be automatically set or the curve set last time can be corrected when the set water temperature curve is manually set according to the outdoor temperature and the corresponding set water temperature, so that the final target set temperature error is small, and the user requirements are met.
Specifically, if other heat sources are used in the room, namely the room temperature T0 > the first predicted value T The measurement is carried out on the basis of the measured value, when the indoor temperature is higher, the set temperature does not need to be too high, and if the target set temperature value is calculated only through the outdoor temperature, the error is larger, so that the target set temperature curve is calculated by combining the indoor temperature and the outdoor temperature.
And determining an indoor temperature correction water temperature curve Y2 according to test data before delivery, and storing the curve Y2 in the heat pump system.
Specifically, in the unit development stage, a series of points including the corrected water temperature corresponding to the indoor temperature is obtained according to the test data, a graph showing the change of the corrected water temperature with the indoor temperature is prepared, and the graph is stored in a chip of the heat pump system as shown in fig. 5, where the curve includes a first corrected water temperature G corresponding to the first indoor temperature E and a second corrected water temperature H corresponding to the second indoor temperature F, that is, two points (E, G) and (F, H), and specifically, the curve includes a first indoor curve segment, a second indoor curve segment and a third indoor curve segment, where (E, G) and (F, H) are two end points of the second indoor curve segment, and the second indoor curve segment can be obtained according to the two end points.
If the indoor temperature is X2 and the corrected water temperature is Y2, two points (E, G) and (F, H) can be obtained, and a curve corresponding to a second indoor curve segment can be obtained according to the two points:
Y2＝(X2-F)×(H-G)/(E-F)+G
that is, when E is not less than X2 is not less than F, X2 is calculated according to the formula: (E, G), (F, H) are two endpoint values of the curve;
when X2 > F, the formula for the third indoor curve segment is Y2= H;
when X2 < E, the formula of the first indoor curve segment is Y2= G;
specifically, the higher the indoor temperature is, the higher the correction water temperature is, and in order to avoid that the correction value is too high, so that the set temperature is too small to meet the actual requirement, the H-G difference is controlled between 3 ℃ and 5 ℃.
Determining the indoor temperature correction water temperature value T according to the indoor temperature T0 and the correction water temperature curve Y2 Repair the 。
Specifically, the unit is started, the indoor temperature T2 is detected, the corresponding correction water temperature curve of the indoor temperature is called, and the indoor temperature correction water temperature value Tcorrection is determined according to the corresponding relation between the indoor temperature T2 and the correction water temperature.
Specifically, the water temperature value T is set according to the outdoor temperature Is provided with Correcting water temperature value T with indoor temperature Repair the Calculating a target set water temperature value T Eyes of a user ，T Eyes of a user ＝T Is provided with -T Repair the 。
For example, the outdoor temperature is detected as T3, i.e., A ≦ T3 ≦ B, i.e., T Is provided with ＝(T3-B)×(D-C)/ (A-B)+C；
Detecting the indoor temperature as T4, namely E is less than or equal to T4 and less than or equal to F, then T Repair the ＝(T4-F)×(H-G)/(E-F) +G；
I.e. T Eyes of a user ＝(T3-B)×(D-C)/(A-B)+C-(T4-F)×(H-G)/(E-F)-G。
Specifically, T is Eyes of a user ＝T Is provided with -T Repair the The calculation program is stored in the heat pump system, and when the unit is started, the set outdoor temperature set water temperature curve and the indoor temperature correction are called through the chipThe positive water temperature curve can quickly obtain a target set water temperature value through a calculation program, the user annoyance is reduced, and meanwhile, when other indoor heat sources are used, the water temperature is set only through the outdoor temperature, so that energy waste is caused, and the user comfort level is reduced.
A heat pump system uses the control method of the heat pump system.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A method of controlling a heat pump system, comprising the steps of:
s1, storing a set water temperature curve Y1 and a corrected water temperature curve Y2 in a heat pump system before delivery;
s2, determining the set water temperature value T of the outdoor temperature according to the outdoor temperature T1 and the set water temperature curve Y1 Is provided with ；
S3, when the indoor temperature T0 is less than the first predicted value T The measurement is carried out on the basis of the measured value, then T Is provided with = target set water temperature value T Eyes of a user If the opposite is true, step S4 is carried out;
s4, determining an indoor temperature correction water temperature value T according to the indoor temperature T0 and the correction water temperature curve Y2 Repair the ；
S5, setting the water temperature value T according to the outdoor temperature Is provided with Correcting water temperature value T with indoor temperature Repair the Calculating a target set water temperature value T Eyes of a user 。
2. The control method according to claim 1, wherein the setting of the water temperature profile Y1 in step S1 includes:
s101: determining a first outdoor temperature A1 value and a corresponding first set water temperature D1 value according to test data of the outdoor working condition I;
s102: determining a second outdoor temperature A2 value and a corresponding second set water temperature D2 value according to the test data of the outdoor working condition II;
...
s10n: determining An nth outdoor temperature An value and a corresponding nth set water temperature Dn value according to test data of the outdoor working condition n;
s10n1, determining a set water temperature curve Y1 based on a series of points (A1, D1), (A2, D2). (An, dn).
3. The control method according to claim 1, wherein the correcting the water temperature profile Y2 in step S1 includes:
s111: determining a first indoor temperature E1 value and a corresponding first corrected water temperature G1 value according to test data of the indoor working condition I;
s112: determining a second indoor temperature E2 value and a corresponding second corrected water temperature G2 value according to the test data of the indoor working condition II;
...
s11n: determining an nth indoor temperature En value and a corresponding nth corrected water temperature Gn value according to test data of an indoor working condition n;
s11n1, determining a corrected water temperature curve Y2 based on the series of points (E1, G1), (E2, G2).
4. The control method according to claim 1, wherein step S2 includes:
s21, starting the unit, and determining the set outdoor temperature value T according to the outdoor temperature T1 and the curve Y1 when the automatic mode is selected Is provided with When the manual mode is selected, step S22 is performed;
s22, re-correcting the curve Y1 to obtain a curve Y11;
s23, determining the set outdoor temperature value T according to the outdoor temperature T1 and the curve Y11 Is provided with 。
5. Control method according to claim 1, characterized in that T in step S5 Eyes of a person Is calculated by the formula T Eyes of a person ＝T Is provided with -T Repair the 。
6. The control method according to claim 1, wherein step S2 comprises set startupThe set water temperature curve Y1 is adjusted, and the corresponding set outdoor temperature water temperature value T is calculated according to the current outdoor temperature T1 Is provided with 。
7. The control method according to claim 1, wherein step S4 includes starting the unit, retrieving the corrected water temperature curve Y2, and calculating the corresponding corrected indoor temperature value T according to the indoor temperature T0 at the starting time Repair the 。
8. The control method according to claim 3, wherein the difference Gn-G1 is controlled to be 3 to 5 ℃.
9. The control method according to claim 4, wherein the step S22 includes obtaining an outdoor temperature a0 and a user-set water temperature b0, and re-correcting the Y1 curve to obtain a curve Y11 according to the point (a 0, b 0).
10. A heat pump system, characterized in that a control method according to any one of claims 1-9 is used.
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| CN113669966A (en) * | 2021-07-21 | 2021-11-19 | 浙江中广电器股份有限公司 | Method for controlling operation of heat pump unit through water temperature |
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