CN115451620B - Control method of heat pump system and heat pump system - Google Patents

Control method of heat pump system and heat pump system Download PDF

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Publication number
CN115451620B
CN115451620B CN202211173740.6A CN202211173740A CN115451620B CN 115451620 B CN115451620 B CN 115451620B CN 202211173740 A CN202211173740 A CN 202211173740A CN 115451620 B CN115451620 B CN 115451620B
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water temperature
temperature
value
curve
outdoor
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CN115451620A (en
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袁封明
许如亚
周涯宸
王成
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Ningbo Aux Electric Co Ltd
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Ningbo Aux Electric Co Ltd
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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
    • 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
    • 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
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (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 an outdoor temperature set water temperature value T according to the outdoor temperature T1 and a set water temperature curve Y1 Is provided with The method comprises the steps of carrying out a first treatment on the surface of the S3, when the indoor temperature T0 is less than the first predicted value T Measuring T is then Is provided with Target set water temperature value T Order of (A) If not, go to 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 tool The method comprises the steps of carrying out a first treatment on the surface of the S5, setting a water temperature value T according to the outdoor temperature Is provided with And an indoor temperature correction water temperature value T Repair tool Calculating a target set water temperature value T Order of (A) . When the unit is started, a target set water temperature value is obtained through calculation through a set water temperature curve Y1 and a corrected water temperature curve Y2 according to the detected indoor temperature and the detected outdoor temperature.

Description

Control method of heat pump system and heat pump system
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 large environment with energy conservation and emission reduction, but the air source heat pump needs to artificially sense the outdoor temperature and then manually select a working mode, and in different working modes, the water return temperature is also required to be artificially set, so that a control system is complex, and the 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, comprising the following steps: the method comprises a water tank temperature and heat pump working mode control step, a step of setting backwater temperature according to outdoor temperature and a step of 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, wherein the temperature sensor and the central controller unit are arranged on the heat pump device. However, in the prior art, if other heat sources exist indoors, the outdoor temperature is adopted to set the backwater temperature, so that the backwater temperature value is higher, resources are wasted, and the comfort level of a user is reduced.
Disclosure of Invention
In view of the foregoing, the present invention aims to provide a control method of a heat pump system and a heat pump system. The outdoor temperature is adopted to set the backwater temperature, and if other heat sources exist indoors, the outdoor temperature is adopted to set the backwater temperature to be higher, so that resources are wasted, and the comfort level of a user is reduced.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
a control method of 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 an outdoor temperature set water temperature value T according to the outdoor temperature T1 and a set water temperature curve Y1 Is provided with ；
S3, when the indoor temperature T0 is less than the first predicted value T Measuring T is then Is provided with Target set water temperature value T Order of (A) If not, go to 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 tool ；
S5, setting a water temperature value T according to the outdoor temperature Is provided with And an indoor temperature correction water temperature value T Repair tool Calculating a target set water temperature value T Order of (A) . The invention can set the target water temperature through the outdoor temperature, can set the target water temperature according to the indoor temperature and the outdoor temperature, and when other heat sources are used indoors, the indoor temperature is too high, so that the higher temperature is not required to be set, and the energy saving and the improvement of the use are achieved by combining the indoor temperature and the outdoor temperatureEffect of user comfort.
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 first outdoor working condition;
s102: determining a second outdoor temperature A2 value and a corresponding second set water temperature D2 value according to the test data of the second outdoor working condition;
...
s10n: according to the test data of the outdoor working condition n, determining An nth outdoor temperature An value and a corresponding nth set water temperature Dn value;
s10n1 the set water temperature curve Y1 is determined based on a series of points (A1, D1), (A2, D2). In the development stage of the unit, data obtained through a plurality of series of tests are made into a curve, and the curve is stored in a chip, so that the subsequent use is convenient.
Further, the correcting the water temperature curve Y2 in step S1 includes:
s111: determining a first indoor temperature E1 value and a corresponding first corrected water temperature G1 value according to the test data of the first indoor working condition;
s112: determining a second indoor temperature E2 value and a corresponding second corrected water temperature G2 value according to the test data of the second indoor working condition;
...
s11n: according to the test data of the indoor working condition n, determining an nth indoor temperature En value and a corresponding nth corrected water temperature Gn value;
s11n1, determining a corrected water temperature curve Y2 based on the columns of points (E1, G1), (E2, G2). In the development stage of the unit, data obtained through a plurality of series of tests are made into a curve, and the curve is stored in a chip, so that the subsequent use is convenient.
Further, step S2 includes:
s21, starting up the unit, and determining an outdoor temperature set water temperature value T according to the outdoor temperature T1 and a curve Y1 when an automatic mode is selected Is provided with When the manual mode is selected, step S22 is performed;
s22, obtaining a curve Y11 after the curve Y1 is revised again;
s23, determining an outdoor temperature set water 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 automatically set the water temperature curve, and also can be manually set according to a user, when the outdoor temperature and the corresponding set water temperature are manually set by the user, the curve needs to be corrected, so that the obtained result of using the corrected curve is more accurate, and the error is small.
Further, T in step S5 Order of (A) The calculation formula of (C) is T Order of (A) ＝T Is provided with -T Repair tool 。
Further, step S2 includes starting up the unit, retrieving a set water temperature curve Y1, and calculating a corresponding set water temperature value T of the outdoor temperature according to the current outdoor temperature T1 Is provided with 。
Further, step S4 includes starting up the machine set, retrieving a corrected water temperature curve Y2, and calculating a corresponding corrected water temperature value T according to the indoor temperature T0 at the starting time Repair tool 。
Further, the difference of Gn-G1 is controlled to be 3-5 ℃. The higher the indoor temperature is, the higher the correction temperature is, so that the effect is optimal because the difference value of the correction water temperature is in the range of 3-5 in order to avoid that the correction value is too high, and the set temperature is too small to meet the actual requirement.
Further, step S22 includes obtaining the outdoor temperature a0 and the user-set water temperature b0, and correcting the Y1 curve again to obtain a curve Y11 according to the points (a 0, b 0). 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 set temperature of a user, when the user does not determine the set temperature value, the control method of the invention is adopted, the set water temperature curve and the corrected water temperature curve are stored in a chip, the unit is started, the corresponding curve in the chip can be automatically called, and the final target set water temperature is obtained through a calculation program of the target set water temperature value according to the detected indoor temperature and outdoor temperature value.
2) According to the initial curve before the machine set leaves the factory, according to the outdoor temperature and the corresponding set water temperature, when a user manually sets, the curve can be automatically corrected, and the target set water temperature is calculated through the corrected curve and the current outdoor temperature, so that the error of the final set water temperature is reduced. When other heat sources are started indoors, the indoor temperature is high, and the control method disclosed by the invention is energy-saving and can improve the comfort level of a user.
The invention also provides a heat pump system and a control method using the heat pump system.
The heat pump system and the control method of the heat pump system have the same advantages as compared with the prior art, and are not described in detail herein.
Drawings
FIG. 1 is a flow chart of a control method of a heat pump system of the present invention;
FIG. 2 is a graph I of a set water temperature for a control method of a heat pump system according to the present invention;
FIG. 3 is a second set water temperature profile of the control method of the heat pump system of 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 profile of the control method of the heat pump system of the present invention.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
Examples
The invention relates to a control method of a heat pump system, as shown in fig. 1, a heat pump system is adopted, the heat pump system supplies hot water according to a user set temperature, and the control method specifically comprises the following implementation modes:
before leaving the factory, storing the set water temperature curve Y1 and the corrected water temperature curve Y2 in the heat pump system, obtaining a series of points according to test data in a development stage of the unit, including the set water temperature corresponding to the outdoor temperature and the corrected water temperature corresponding to the indoor temperature, making the set water temperature curve and the corrected water temperature curve, and storing the set water temperature curve and the corrected water temperature curve in a chip.
Specifically, the set water temperatures corresponding to different outdoor temperatures are different, the higher the outdoor temperature is, the lower the set water temperature is, so that when a user selects an automatic mode in the unit, the set water temperature corresponding to the outdoor temperature is detected through experiments, a curve graph of the change of the set water temperature with the outdoor temperature is made, as shown in fig. 2, the curve is stored in a chip of the heat pump system, the curve comprises 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, namely (A, D), (B and C), specifically, the curve comprises a first stable section, a descending section and a second stable section, and (A, D), (B and C) are two end point values of the descending section.
Assuming that 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 descent segment can be obtained from these 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 endpoints 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 and used, when the user selects an automatic mode, a 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 setting 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, the corrected curve is to reduce the error of the set water temperature, and the corrected curve is as 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 three points, namely, (a, D), (B, C), and (a 0, B0), which are 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 a 0.
Specifically, the curve includes a first stable segment, a first descending segment, a second descending segment, and a second stable segment, wherein (a, D), (a 0, B0) are two end points of the first descending segment, and (a 0, B0), (B, C) are two end points of the second descending segment.
Assuming that the outdoor temperature is X11 and the water temperature is Y11, two points (a, D), (a 0, b 0) are obtained, and a curve corresponding to the second falling stage can be obtained from these two points:
when A is less than X11 and less than a0, the corresponding curve formula is: y11= (X11-a 0) × (D-b 0)/(a-a 0) +b0
The curve corresponding to the descending segment is:
when a0 is less than or equal to X11 and less than or equal to B, the corresponding curve formula is as follows: y11= (X11-B) × (B0-C)/(a 0-B) +c
Then a new curve is generated, the next time is started, if the user selects the automatic mode, Y11 is set according to the curve, and later, if the user only needs to manually set a temperature value, the curve should be continuously corrected, the temperature value comprises an outdoor temperature and a set water temperature, wherein the outdoor temperature can be automatically acquired, and the set water temperature needs to be set by the user.
For example, the user manually sets the temperature value once again, and 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 which two outdoor temperatures a1 has been corrected between. 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 four points, namely, (a, D), (B, C), (a 0, B0), which are 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 a 1.
Specifically, the curve includes a first stable segment, a first descending segment, a second descending segment, and a second stable segment, wherein (a 0, B0), (a 1, B1) are two end points of the first descending segment, and (a 1, B1), (B, C) are two end points of the second descending segment.
Assuming that the outdoor temperature is X1 ', the water temperature is Y1 ', and when a0 is less than or equal to X1 ' -is less than or equal to a1, according to the two points (a 0, b 0) and (a 1, b 1), a curve formula corresponding to the first descent segment II can be obtained 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 descent segment 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 previous curve is corrected by adopting manual setting, when the curve is corrected, the position between the two outdoor temperatures which participate in correction is found, then the 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 is calculated according to the curve after the last manual setting correction, and the accuracy of setting the water temperature through the outdoor temperature is improved under the condition that the indoor temperature is fixed.
Specifically, the machine set is started, the outdoor temperature T1 is detected, a set temperature curve corresponding to the outdoor temperature T1 is called, and the set water temperature T of the outdoor temperature is determined according to the temperature curve relation between the outdoor temperature T1 and the set water temperature Is provided with 。
Judging that the indoor temperature T0 is larger than the first predicted value T Measuring If not, T Is provided with Target set water temperature value T Order of (A) If yes, the indoor temperature is too high, and the target set water temperature value T is calculated according to the indoor temperature and the outdoor temperature Order (1).
Specifically, if there is no other heat source used in the room, the room temperature T0 is less than the first predicted value T The measurement is carried out on the position of the sample, the target set water temperature value can be obtained only through the outdoor temperature. The curve of the set water temperature can be automatically set or the curve set last time can be corrected when the set water temperature 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 requirement is met.
Specifically, if other heat sources are used in the room, i.e., the room temperature T0 > the first predicted value T The measurement is carried out on the position of the sample, when the indoor temperature is higher, the set temperature is not required to be too high at the moment, 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 leaving the factory, and storing the curve Y2 in the heat pump system.
Specifically, in the development stage of the unit, a series of points are obtained according to test data, including a corrected water temperature corresponding to an indoor temperature, a graph of a change of the corrected water temperature along with the indoor temperature is made, as shown in fig. 5, the graph is stored in a chip of the heat pump system, the graph includes a first corrected water temperature G corresponding to a first indoor temperature E, and a second corrected water temperature H corresponding to a second indoor temperature F, namely (E, G), (F, H), and specifically, the graph includes a first indoor curve segment, a second indoor curve segment, and a third indoor curve segment, wherein (E, G), (F, H) is two end values of the second indoor curve segment, and the second indoor curve segment can be obtained according to the two end values.
Assuming that the indoor temperature is X2 and the corrected water temperature is Y2, two points (E, G), (F, H) can be obtained, and according to these two points, a curve corresponding to the second indoor curve segment can be obtained:
Y2＝(X2-F)×(H-G)/(E-F)+G
that is, when E is less than or equal to X2 and less than or equal to F, X2 is calculated according to the formula: (E, G), (F, H) are the two end points of the curve;
when X2 > F, the formula of 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 corrected water temperature is, and in order to avoid that the corrected value is too high, the set temperature is too small to meet the actual requirement, and the H-G difference value is controlled between 3 ℃ and 5 ℃.
Determining an indoor temperature correction water temperature value T according to the indoor temperature T0 and the correction water temperature curve Y2 Repair tool 。
Specifically, the unit is started, the indoor temperature T2 is detected, a temperature curve of the indoor temperature corresponding to the corrected water temperature is called, and the indoor temperature corrected water temperature value Trepair is determined according to the corresponding relation between the indoor temperature T2 and the corrected water temperature.
Specifically, the water temperature value T is set according to the outdoor temperature Is provided with And an indoor temperature correction water temperature value T Repair tool Calculating a target set water temperature value T Order of (A) ，T Order of (A) ＝T Is provided with -T Repair tool 。
For example, the outdoor temperature is detected as T3, i.e., A.ltoreq.T3.ltoreq.B, i.e., T Is provided with ＝(T3-B)×(D-C)/ (A-B)+C；
Detecting the indoor temperature to be T4, namely E is less than or equal to T4 and less than or equal to F, and then T Repair tool ＝(T4-F)×(H-G)/(E-F) +G；
Namely T Order of (A) ＝(T3-B)×(D-C)/(A-B)+C-(T4-F)×(H-G)/(E-F)-G。
Specifically, T is Order of (A) ＝T Is provided with -T Repair tool The calculation program is stored in the heat pump system, when the unit is started, the outdoor temperature set water temperature curve and the indoor temperature correction water temperature curve are called by the chip, the target set water temperature value can be obtained quickly by the calculation program, the trouble of a user is reduced, and meanwhile, when other indoor heat sources are used, the water temperature is set only by the outdoor temperature, so that energy waste and user comfort level are reduced.
A heat pump system, a control method using the heat pump system.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.

Claims (10)

1. A control method of 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 an outdoor temperature set water temperature value Tset according to the outdoor temperature T1 and a set water temperature curve Y1;
s3, when a heat source exists in the room, namely the room temperature T0 is smaller than the first predicted value Tmeasure, setting a target set water temperature Tmesh by T=and carrying out step S4 if the target set water temperature Tmesh is opposite;
s4, when no heat source exists in the room, determining a room temperature correction water temperature value Trepair according to the room temperature T0 and a correction water temperature curve Y2;
s5, calculating a target set water temperature value Tmesh according to the outdoor temperature set water temperature value Tset and the indoor temperature correction water temperature value Trepair.
2. The control method according to claim 1, wherein setting 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 first outdoor working condition;
s102: determining a second outdoor temperature A2 value and a corresponding second set water temperature D2 value according to the test data of the second outdoor working condition;
...
s10n: according to the test data of the outdoor working condition n, determining An nth outdoor temperature An value and a corresponding nth set water temperature Dn value;
s10n1 the set water temperature curve Y1 is determined based on a series of points (A1, D1), (A2, D2).
3. The control method according to claim 1, wherein 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 the test data of the first indoor working condition;
s112: determining a second indoor temperature E2 value and a corresponding second corrected water temperature G2 value according to the test data of the second indoor working condition;
...
s11n: according to the test data of the indoor working condition n, determining an nth indoor temperature En value and a corresponding nth corrected water temperature Gn value;
s11n1, determining a corrected water temperature curve Y2 based on the columns of points (E1, G1), (E2, G2).
4. The control method according to claim 1, characterized in that step S2 includes:
s21, starting the unit, determining an outdoor temperature set water temperature value Tset according to the outdoor temperature T1 and a curve Y1 when an automatic mode is selected, and performing step S22 when a manual mode is selected;
s22, obtaining a curve Y11 after the curve Y1 is revised again;
s23, determining an outdoor temperature set water temperature value T according to the outdoor temperature T1 and the curve Y11.
5. The control method according to claim 1, wherein the calculation formula of tset in step S5 is tset = tset-tsir.
6. The control method according to claim 1, wherein step S2 includes powering on the unit, retrieving a set water temperature curve Y1, and calculating a corresponding set water temperature value tset for the outdoor temperature according to the current outdoor temperature T1.
7. The control method according to claim 1, wherein step S4 includes powering on the unit, retrieving a corrected water temperature curve Y2, and calculating a corresponding indoor temperature corrected water temperature value tcup according to an indoor temperature T0 at the time of powering on.
8. A control method according to claim 3, wherein the difference in Gn-G1 is controlled to 3 to 5 ℃.
9. The control method according to claim 4, wherein step S22 includes obtaining an outdoor temperature a0 and a user-set water temperature b0, and correcting the Y1 curve again to obtain a curve Y11 according to points (a 0, b 0).
10. A heat pump system characterized by using the control method according to any one of claims 1-9.
CN202211173740.6A 2022-09-26 2022-09-26 Control method of heat pump system and heat pump system Active CN115451620B (en)

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Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3723879B2 (en) * 1996-06-28 2005-12-07 日本電熱株式会社 Hot water controller
CN102721104B (en) * 2012-06-11 2016-08-17 北京金房暖通节能技术股份有限公司 Central heating system supply water temperature weather compensation control method
CN106016760B (en) * 2016-07-01 2018-04-13 顺德职业技术学院 Self-adapting frequency conversion heat-pump hot-water Energy conservation measures in heating system
CN107120799B (en) * 2017-05-23 2020-07-07 青岛海尔空调电子有限公司 Multi-split control method and system for water system
CN107677012B (en) * 2017-09-20 2020-09-25 四川长虹电器股份有限公司 Control method and control system
CN207907445U (en) * 2017-12-05 2018-09-25 徐州海里奥特环境科技有限公司 A kind of control system for heat pump based on temperature curve
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
CN113669969A (en) * 2021-08-27 2021-11-19 广东美格动力新能源有限公司 Heat pump unit supply and return water temperature control system and method

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