CN117167816A

CN117167816A - Control method of air source heat pump system and related equipment thereof

Info

Publication number: CN117167816A
Application number: CN202311247666.2A
Authority: CN
Inventors: 张锐; 雷创; 沈祝羽; 杜振雷; 黎小梅; 安志猛
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2023-09-25
Filing date: 2023-09-25
Publication date: 2023-12-05

Abstract

The application relates to a control method of an air source heat pump system and related equipment thereof, wherein the air source heat pump system comprises a plurality of heat pump units which are arranged according to an array, and the method comprises the following steps: when the air source heat pump system operates in a heating mode, acquiring environmental wind information of an outdoor environment in which the air source heat pump system is positioned; determining a first sequencing result among all heat pump units in an air source heat pump system according to the environmental wind information, wherein the first sequencing result is used for representing a sequencing relation among influence degrees of all heat pump units in the air source heat pump system on the air source heat pump system to generate a cold island effect; determining target load information corresponding to an air source heat pump system; and controlling each heat pump unit in the air source heat pump system according to the first sequencing result and the target load information. The application improves the cold island effect generated by the array type air source heat pump, thereby improving the operation efficiency of the air source heat pump system and reducing the operation energy consumption of the air source heat pump system.

Description

Control method of air source heat pump system and related equipment thereof

Technical Field

The application relates to the technical field of heat pumps, in particular to a control method of an air source heat pump system and related equipment thereof.

Background

Air source heat pump systems are commonly used for district heating. The air source heat pump system comprises a plurality of heat pump units, and the plurality of heat pump units are often arranged outdoors in an array mode. When the air source heat pump system operates in a heating mode, low-temperature air exhausted after heat exchange of the heat pump unit flows back to the central area of the array, so that the temperature of an air field in the central area of the array is far lower than the temperature of ambient atmosphere, and a cold island effect is formed in the array. The existence of the cold island effect greatly reduces the operation efficiency of the air source heat pump system when the air source heat pump system operates in a heating mode, and increases the operation energy consumption of the air source heat pump system.

Disclosure of Invention

The application provides a control method of an air source heat pump system and related equipment thereof, which are used for solving the technical problems of low operation efficiency and high operation energy consumption of a cold island effect formed when the air source heat pump system is used for heating a mode at present.

In a first aspect, the present application provides a control method of an air source heat pump system, where the air source heat pump system includes a plurality of heat pump units arranged according to an array, the method includes:

when the air source heat pump system operates in a heating mode, acquiring environmental wind information of an outdoor environment in which the air source heat pump system is positioned;

Determining a first sequencing result among all the heat pump units in the air source heat pump system according to the environmental wind information, wherein the first sequencing result is used for representing a sequencing relation among influence degrees of all the heat pump units in the air source heat pump system on the air source heat pump system to generate a cold island effect;

determining target load information corresponding to the air source heat pump system;

and controlling each heat pump unit in the air source heat pump system according to the first sequencing result and the target load information.

In an alternative embodiment, the ambient wind information includes: the actual wind speed of the ambient wind and the actual wind direction of the ambient wind;

the determining a first sequencing result among all the heat pump units in the air source heat pump system according to the environmental wind information comprises the following steps:

when the actual wind speed is smaller than or equal to a first preset wind speed, obtaining a first actual temperature of a heat exchange module in each heat pump unit;

determining a first sequencing result among all the heat pump units in the air source heat pump system according to the actual wind direction and the first actual temperature of the heat exchange modules in each heat pump unit;

When the actual wind speed is larger than the first preset wind speed, determining a target comparison result between the actual wind direction and a preset wind direction;

and determining a first sequencing result among all the heat pump units in the air source heat pump system according to the target comparison result.

In an optional embodiment, the preset wind direction includes a first preset wind direction, the heat pump unit includes a first heat exchange section and a second heat exchange section, a heat exchange area corresponding to the first heat exchange section is smaller than a heat exchange area corresponding to the second heat exchange section, and the first preset wind direction faces the first heat exchange section;

the determining a first sequencing result among all the heat pump units in the air source heat pump system according to the target comparison result comprises the following steps:

and when the target comparison result comprises that the actual wind direction is the first preset wind direction, executing the step of acquiring the first actual temperature of the heat exchange modules in each heat pump unit to obtain a first sequencing result among all the heat pump units in the air source heat pump system.

In an optional embodiment, the preset wind direction includes a second preset wind direction, the heat pump unit includes a first heat exchange section and a second heat exchange section, a heat exchange area corresponding to the first heat exchange section is smaller than a heat exchange area corresponding to the second heat exchange section, and the second preset wind direction faces the second heat exchange section;

and when the target comparison result comprises that the actual wind direction is the second preset wind direction, sequencing all the heat pump units in the air source heat pump system according to the actual wind direction so as to obtain a first sequencing result among all the heat pump units in the air source heat pump system.

In an alternative embodiment, the determining a first sequencing result between all the heat pump units in the air source heat pump system according to the actual wind direction and the first actual temperature of the heat exchange modules in each heat pump unit includes:

numbering each heat pump unit in the air source heat pump system according to the actual wind direction to obtain a first number of each heat pump unit;

numbering each heat pump unit in the air source heat pump system according to the sequence from the small to the large of the first actual temperature of the heat exchange module in the heat pump unit so as to obtain the second number of each heat pump unit;

Determining a third number of the heat pump unit according to the first number of the heat pump unit and the second number of the heat pump unit for each heat pump unit in the air source heat pump system;

and sequencing all the heat pump units in the air source heat pump system according to the sequence from the small number to the large number of the third number of the heat pump units so as to obtain a first sequencing result among all the heat pump units in the air source heat pump system.

In an optional embodiment, the determining, according to the ambient wind information, a first sequencing result between all the heat pump units in the air source heat pump system includes:

when the actual wind speed is smaller than or equal to a second preset wind speed, obtaining a second actual temperature of a heat exchange module in each heat pump unit, wherein the second preset wind speed is smaller than the first preset threshold;

sequencing all the heat pump units in the air source heat pump system according to the sequence from small to large of the second actual temperature of the heat exchange modules in the heat pump units to obtain a first sequencing result among all the heat pump units in the air source heat pump system;

When the actual wind speed is smaller than or equal to a first preset wind speed, acquiring a first actual temperature of a heat exchange module in each heat pump unit, including:

and when the actual wind speed is larger than the second preset wind speed and the actual wind speed is smaller than or equal to the first preset threshold value, acquiring a first actual temperature of the heat exchange module in each heat pump unit.

In an optional embodiment, the controlling each heat pump unit in the air source heat pump system according to the first sorting result and the target load information includes:

under the condition that the heat pump units which do not meet the heating requirement and are required to be started by a first target number are determined according to the target load information, performing reverse sequence operation on the first sequencing result to obtain a second sequencing result;

determining the first target number of heat pump units from the air source heat pump system according to the second sequencing result, and controlling the first target number of heat pump units to be started;

and under the condition that the heat pump units which do not meet the heating requirement and are required to be turned off in the second target number are determined according to the target load information, determining the heat pump units in the second target number from the air source heat pump systems according to the first sequencing result, and controlling the heat pump units in the second target number to be turned off.

under the condition that the heating requirement is met according to the target load information, determining a third target number of heat pump units from the air source heat pump system according to the first sequencing result every interval for a first preset time period, and controlling the third target number of heat pump units to be started, wherein the third target number is used for indicating the starting of the third target number of heat pump units to meet the heating requirement.

In a second aspect, the present application provides a control device for an air source heat pump system, the air source heat pump system including a plurality of heat pump units arranged in an array, the device including:

the acquisition module is used for acquiring the environmental wind information of the outdoor environment where the air source heat pump system is positioned when the air source heat pump system operates in a heating mode;

the determining module is used for determining a first sequencing result among all the heat pump units in the air source heat pump system according to the environmental wind information, and the first sequencing result is used for representing a sequencing relation among the influence degrees of all the heat pump units in the air source heat pump system on the air source heat pump system to generate a cold island effect;

The determining module is used for determining target load information of the indoor environment where the air source heat pump system is located;

and the control module is used for controlling each heat pump unit in the air source heat pump system according to the first sequencing result and the target load information.

In a third aspect, the present application provides an air source heat pump system comprising: the air source heat pump system control system comprises a processor and a memory, wherein the processor is used for executing a control program of the air source heat pump system stored in the memory so as to realize the air source heat pump system control method.

In a fourth aspect, the present application also provides a storage medium storing one or more programs executable by one or more processors to implement the control method of the air source heat pump system as described above.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages that the method provided by the embodiment of the application comprises the following steps: when the array type air source heat pump system operates in a heating mode, environment wind information of an outdoor environment where the air source heat pump system is located is obtained, a first sequencing result among all heat pump units in the air source heat pump system is determined according to the environment wind information, the first sequencing result is used for representing a sequencing relation among influence degrees of all heat pump units in the air source heat pump system on the air source heat pump system, the target load information corresponding to the air source heat pump system is determined, and each heat pump unit in the air source heat pump system is controlled according to the first sequencing result and the target load information. By the mode, when the heat pump units in the air source heat pump system operating in the heating mode are controlled, the influence of the ambient air of the outdoor environment where the air source heat pump system is located on each heat pump unit is considered, and the cold island effect generated by the air source heat pump system is further influenced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

Fig. 1 is a schematic flow chart of a control method of an air source heat pump system according to an embodiment of the present application;

fig. 2 is a schematic flow chart of another control method of an air source heat pump system according to an embodiment of the present application;

FIG. 3 is a flow chart of a control method of another air source heat pump system according to an embodiment of the present application;

FIG. 4 is a flow chart of a method for controlling an air source heat pump system according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a heat pump unit according to an embodiment of the present application;

FIG. 6 is a schematic diagram of a plurality of heat pump units arranged according to an array according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a control device of an air source heat pump system according to an embodiment of the present application;

FIG. 8 is a schematic diagram of an air source heat pump system according to an embodiment of the present application;

in the above figures of the drawings,

10. an acquisition module; 20. a determining module; 30. a control module;

800. an air source heat pump system; 801. a processor; 802. a memory; 8021. an operating system; 8022. an application program; 803. a user interface; 804. a network interface; 805. a bus system.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The following disclosure provides many different embodiments, or examples, for implementing different structures of the application. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

Referring to fig. 1, fig. 1 is a flow chart of a control method of an air source heat pump system according to an embodiment of the present application. The embodiment of the application provides a control method of an air source heat pump system, which comprises the following steps:

s101: when the air source heat pump system operates in a heating mode, environment wind information of an outdoor environment in which the air source heat pump system is located is obtained.

In this embodiment, the air source heat pump system is an array type air source heat pump system, which may be understood as including a plurality of heat pump units arranged in an array. The ambient wind information includes an actual wind speed of the ambient wind and an actual wind direction of the ambient wind. Wherein, a wind direction sensor can be arranged in the air source heat pump system so as to collect the actual wind direction of the environmental wind through the wind direction sensor when the air source heat pump system operates in a heating mode; a wind speed sensor may be provided in the air source heat pump system to collect an actual wind direction of the ambient wind by the wind speed sensor when the air source heat pump system is operated in the heating mode. When the air source heat pump system is operated in the heating mode, the ambient air of the outdoor environment where the air source heat pump system is located can have a certain influence on each heat pump unit in the array type air source heat pump system, and each heat pump unit is influenced differently by the ambient air, so that different influences can be generated on the cold island effect generated by the array type air source heat pump system.

S102: and determining a first sequencing result among all the heat pump units in the air source heat pump system according to the environmental wind information, wherein the first sequencing result is used for representing a sequencing relation among influence degrees of all the heat pump units in the air source heat pump system on the air source heat pump system to generate a cold island effect.

In this embodiment, on the basis of acquiring the environmental information wind, a first sequencing result among all heat pump units in the air source heat pump system is determined according to the influence condition of the environmental wind of the outdoor environment in which the air source heat pump system is located. After the first sequencing result is obtained, when the heat pump units in the air source heat pump system are controlled, the heat pump units in the air source heat pump system can be controlled according to the first sequencing result so as to improve the cold island effect generated by the air source heat pump system.

S103: and determining target load information corresponding to the air source heat pump system.

In this embodiment, the target load information may include a return water temperature and a return water supply temperature difference. The temperature difference of the water supply and return is equal to the difference between the water supply temperature and the water return temperature. Wherein, a temperature sensor can be arranged in a water return pipeline in the air heat source pump system to collect the temperature of the returned water in the water return pipeline; a temperature sensor may also be provided in the water supply line in the air source heat pump system to collect the water supply temperature in the water supply line.

S104: and controlling each heat pump system in the air source heat pump systems according to the first sequencing result and the target load information.

In this embodiment, when the target load information is obtained, whether the heating requirement is met may be determined according to the target load information, and under the condition that the heating requirement is not met, a corresponding number of heat pump units in the air source heat pump system may be controlled according to the first sequencing result, so that the heating requirement can be met after the heat pump units are controlled. And under the condition of meeting the heating requirement, controlling the heat pump units with the corresponding quantity which meet the heating requirement. It should be noted that, when the air source heat pump system is controlled, a preset monitoring period may be set, and when the preset monitoring period is reached, the steps S101 to S104 may be executed, where the preset monitoring period may be set according to actual needs, and in this embodiment, specific numerical values of the preset monitoring period are not limited. The first sorting result may include a sorting sequence for sorting all heat pump units in the air source heat pump system according to the order of the influence degree of the heat pump units on the air source heat pump system to the cold island effect from small to large. Of course, the first sorting result may also include a sorting sequence for sorting all heat pump units in the air source heat pump system according to the order of the heat pump units having a degree of influence on the air source heat pump system by the cold island effect from large to small. In this embodiment, a sorting sequence in which all heat pump units in the air source heat pump system are sorted according to the order of the heat pump units from small to large influencing degree of the air source heat pump system to generate the cold island effect is selected as a first sorting result. Under the condition that the first target number of heat pump units which do not meet the heating requirement and are required to be started again is determined according to the target load information, according to the first sequencing result, the first target number of heat pump units with small influence on the air source heat pump system to generate the cold island effect can be selected, and the starting of the first target number of heat pump units is controlled. And under the condition that the heat pump units which do not meet the heating requirement and are required to be closed by a second target number are determined according to the target load information, performing reverse sequence operation on the first sequencing result to obtain a second sequencing result, selecting the heat pump units with the second target number, which have larger influence on the air source heat pump system to generate the cold island effect, according to the second sequencing result, and controlling the heat pump units to be closed.

In the above description, failing to meet the heating requirement may be understood that the return water temperature does not meet the preset temperature or the return water supply temperature difference does not meet the preset temperature difference; meeting the heating requirement can be understood as that the return water temperature meets a preset temperature or the supply return water temperature difference meets a preset temperature difference.

According to the control method of the air source heat pump system, when the heat pump units in the air source heat pump system operating in the heating mode are controlled, the influence of ambient air of the outdoor environment where the air source heat pump system is located on each heat pump unit is considered, and then the cold island effect generated by the air source heat pump system is influenced, the ambient air information of the outdoor environment where the air source heat pump system is located is monitored, so that a sequencing result between the influence degrees of all the heat pump units in the whole air source heat pump system on the cold island effect generated by the air source heat pump system is obtained according to the monitored ambient air information, and then the heat pump units in the air source heat pump system are controlled according to the sequencing result and the determined target load information corresponding to the air source heat pump system, so that the cold island effect generated by the array type air source heat pump is improved, the operation efficiency of the air source heat pump system is improved, and the operation energy consumption of the air source heat pump system is reduced.

Referring to fig. 2, fig. 2 is a flow chart of a control method of another air source heat pump system according to an embodiment of the present application. The embodiment of the application provides a control method of an air source heat pump system, which comprises the following steps:

s201: when the air source heat pump system operates in a heating mode, acquiring environmental wind information of an outdoor environment in which the air source heat pump system is located, wherein the environmental wind information comprises: the actual wind speed of the ambient wind and the actual wind direction of the ambient wind.

In this embodiment, the step S201 is identical to the step S101, and the description of this embodiment is omitted herein.

S202: it is determined whether the actual wind speed is less than or equal to a first preset wind speed.

S203: and when the actual wind speed is smaller than or equal to the first preset wind speed, acquiring a first actual temperature of the heat exchange module in each heat pump unit.

S204: and determining a first sequencing result among all heat pump units in the air source heat pump system according to the actual wind direction and the first actual temperature of the heat exchange module in each heat pump unit.

For the steps S202 to S204, the first preset wind speed may be set according to actual needs, which is not specifically limited in this embodiment. For example, the first preset wind speed may be 5m/s. When the actual wind speed is smaller than or equal to the first preset wind speed, the ambient wind which characterizes the outdoor environment where the air source heat pump system is located can have a certain influence on the heat pump unit, the temperature of the heat exchange module in the heat pump unit can also have a certain influence on the heat pump unit, and the heat pump unit can directly influence the cold island effect generated by the air source heat pump system under the influence of the ambient wind and the temperature of the heat exchange module. At this time, when the actual wind speed is less than or equal to the first preset wind speed, in order to obtain the first sorting sequence more accurately, so as to better improve the cold island effect generated by the air source heat pump system, the influence of the ambient wind and the temperature of the heat exchange module in the heat pump unit needs to be considered at the same time, and the first sorting result among all the heat pump units in the air source heat pump system is determined according to the wind direction of the ambient wind and the temperature of the heat exchange module in the heat pump unit. In the above, a temperature sensor is disposed near the heat exchange module in each heat pump unit to collect the temperature of the heat exchange module.

In step S204, a first sequencing result between all heat pump units in the air source heat pump system is determined according to the actual wind direction and a first actual temperature of the heat exchange module in each heat pump unit, including:

numbering each heat pump unit in the air source heat pump system according to the sequence from the high to the low of the first actual temperature of the heat exchange module in the heat pump unit so as to obtain the second number of each heat pump unit;

and sequencing all the heat pump units in the air source heat pump system according to the sequence of the third numbers of the heat pump units from small to large so as to obtain a first sequencing result among all the heat pump units in the air source heat pump system.

In the above, when the third number of the heat pump unit is determined, the third number may be obtained by adding the first number and the second number of the same heat pump unit. The numbering of the individual heat pump units according to the actual wind direction is understood as referring to fig. 5 and 6, when the actual wind direction is the X wind direction, the individual heat pump units in the air source heat pump system are numbered according to the X wind direction (i.e. the windward direction to the leeward direction). The numbers of all the heat pump units in the Y direction perpendicular to the X wind direction are the same, and the numbers of the heat pump units in the X direction are sequentially increased until the numbers of all the heat pump units in the final air source heat pump system are finished. For example, if the air source heat pump system includes the heat pump unit a, the heat pump unit B and the heat pump unit C along the X direction, the first number X of the heat pump unit a may be 1, the first number X of the heat pump unit B may be 2, and the first number X of the heat pump unit C may be 3. The numbering of the heat pump units in the air source heat pump system according to the order of the first actual temperature of the heat exchange modules in the heat pump units from large to small can be understood as sequentially increasing the second numbers of all the heat pump units in the air source heat pump system according to the order of the first actual temperature of the heat exchange modules from large to small. For example, the air source heat pump system includes a heat pump unit a, a heat pump unit B and a heat pump unit C, wherein the first actual temperature of the heat exchange module in the heat pump unit a is greater than the first actual temperature of the heat exchange module in the heat pump unit B, and the first actual temperature of the heat exchange module in the heat pump unit B is greater than the first actual temperature of the heat exchange module in the heat pump unit C, so the second number y of the heat pump unit a may be 1, the second number y of the heat pump unit B may be 2, and the number y of the heat pump unit C may be 3. After the first number and the second number of each heat pump unit in the air source heat pump system are obtained, the first number and the second number of each heat pump unit are added to obtain a third number z. For example, on the basis that the first number x of the heat pump unit a may be 1, the first number x of the heat pump unit B may be 2, the first number x of the heat pump unit C may be 3, the second number y of the heat pump unit a may be 1, the second number y of the heat pump unit B may be 2, the third number z of the heat pump unit a may be 2, the third number z of the heat pump unit B may be 3, and the third number z of the heat pump unit C may be 6. After the third numbers of the heat pump units in the air source heat pump system are obtained, sequencing all the heat pump units according to the sequence from the third numbers to the large so as to obtain a first sequencing sequence. For example, the heat pump unit a, the heat pump unit B, and the heat pump unit C are ranked on the basis of the third number z of the heat pump unit a being 2, the third number z of the heat pump unit B being 3, and the third number z of the heat pump unit C being 6, whereby a ranking sequence in which the first ranking result includes the heat pump unit a, the heat pump unit B, and the heat pump unit C can be obtained.

S205: and when the actual wind speed is larger than the first preset wind speed, determining a target comparison result between the actual wind direction and the preset wind direction.

S206: and determining a first sequencing result among all heat pump units in the air source heat pump system according to the target comparison result.

For the steps S205 and S206, the preset wind direction corresponds to the heat exchange section in the heat pump unit (i.e. the preset wind direction faces different heat exchange sections in the heat pump unit), and the heat exchange sections in the heat pump unit are used for representing the heat exchange area. The heat pump unit comprises a first heat exchange section and a second heat exchange section, the heat exchange area corresponding to the first heat exchange section is smaller than that of the second heat exchange section, the first preset wind direction faces the first heat exchange section, and the second preset wind direction faces the second heat exchange section. When the actual wind speed is greater than the first preset wind speed, although a part of cold energy is taken away by the ambient wind energy, the heat exchange sections in the heat pump units corresponding to different wind directions are different, and a certain influence is still caused on the cold island effect generated by the whole air source heat pump system, so that when the first sequencing result is determined, a more accurate first sequencing result is obtained by considering the target comparison result of the actual wind direction and the preset wind direction, and the cold island effect generated by the air source heat pump system can be better improved when the heat pump units are controlled by using the first sequencing result. Referring to fig. 5 and 6, the first preset wind direction may be a Y wind direction, the second preset wind direction may be an X wind direction, and the heat pump unit is provided with a first heat exchange section in the Y wind direction; and in the X wind direction, a second heat exchange section is arranged on the heat pump unit. When the actual wind direction acquired by the wind direction sensor approaches the X wind direction, determining that the actual wind direction is the X wind direction; when the actual wind direction acquired by the wind direction sensor approaches the Y wind direction, the actual wind direction is determined to be the Y wind direction.

When the actual wind speed is greater than the first preset wind speed, the heat pump unit has heat exchange sections with different heat exchange areas in different directions, so that different wind directions of ambient wind can have different influences on the heat pump unit, and then the cold island effect generated by the air source heat pump system can be influenced, and therefore, when the actual wind speed is greater than the first preset wind speed, the influence of the actual wind direction of the ambient wind on the heat pump unit is considered. Specifically, determining a first sequencing result among all heat pump units in the air source heat pump system according to the target comparison result comprises the following steps:

when the target comparison result comprises that the actual wind direction is a first preset wind direction, acquiring a first actual temperature of a heat exchange module in each heat pump unit;

and determining a first sequencing result among all heat pump units in the air source heat pump system according to the actual wind direction and the first actual temperature of the heat exchange module in each heat pump unit.

In the above, when the actual wind direction is the first preset wind direction, since the first preset wind direction faces the heat exchange section with smaller heat exchange area in the heat pump unit, when the first sequencing result is determined, not only the influence of the actual wind direction of the ambient wind on the heat pump unit, but also the influence of the temperature of the heat exchange module in the heat pump unit on the heat pump unit need to be considered, so as to obtain the first sequencing result more accurately, and when the first sequencing result is used for controlling the heat pump unit, the cold island effect generated by the air source heat pump system can be improved better. The first sorting result is determined to be consistent with the above by acquiring the first actual temperature of the heat exchange module in each heat pump unit, which is not described herein in detail in this embodiment.

More specifically, according to the target comparison result, determining a first sequencing result among all heat pump units in the air source heat pump system, and further includes:

when the target comparison result comprises that the actual wind direction is the second preset wind direction, sequencing all heat pump units in the air source heat pump system according to the actual wind direction so as to obtain a first sequencing result among all heat pump units in the air source heat pump system.

In the above, when the actual wind direction is the second preset wind direction, the second preset wind direction faces the heat exchange section with larger heat exchange area in the heat pump unit, so that when the first sequencing result is determined, only the influence of the actual wind direction of the ambient wind on the heat pump unit is considered, so that a more accurate first sequencing result can be obtained, and when the first sequencing result is used for controlling the heat pump unit, the cold island effect generated by the air source heat pump system can be better improved. Sequencing all the heat pump units in the air source heat pump system according to the actual wind direction can be understood as referring to fig. 4 and 5 when the actual wind direction is the X wind direction, that is, sequencing all the heat pump units in the air source heat pump system according to the direction indicated by the X wind direction arrow in the drawing (i.e., the windward direction to the leeward direction) in sequence.

S207: and determining target load information corresponding to the air source heat pump system.

In this embodiment, the step S207 is identical to the step S103 described above, and the description of this embodiment is omitted herein.

S208: and controlling each heat pump unit in the air source heat pump system according to the first sequencing result and the target load information.

In this embodiment, the step S208 specifically includes:

determining whether the heating requirement is met according to the target load information;

under the condition that the heating requirement is met according to the target load information, determining a third target number of heat pump units from the air source heat pump system according to a first sequencing result every interval for a first preset time period, and controlling the third target number of heat pump units to be started, wherein the third target number is used for indicating the starting of the third target number of heat pump units to meet the heating requirement;

under the condition that the heat pump units which do not meet the heating requirement and are required to be started up again are determined according to the target load information, determining the first target number of heat pump units from the air source heat pump system according to a first sequencing result, and controlling the first target number of heat pump units to be started up;

Under the condition that the heat pump units which do not meet the heating requirement and need to be turned off by a second target number are determined according to the target load information, performing reverse sequence operation on the first sequencing result to obtain a second sequencing result;

and determining a second target number of heat pump units from the air source heat pump system according to the second sequencing result, and controlling the second target number of heat pump units to be turned off.

In the foregoing, whether the heating requirement is satisfied or not is determined according to the target load, which is referred to above, and will not be described herein in detail. When the heating requirement is met according to the target load information, the number of the heat pump units which are started in the current air source heat pump system is indicated to be capable of meeting the heating requirement, and in order to avoid the situation that the same heat pump unit is started all the time for a long time, the generation of the cold island effect of the air source heat pump system is further increased, so that every interval of a first preset time length, the heat pump units with the third target number are determined according to the first sequencing result which is determined currently, the starting of the heat pump units is controlled, and all the heat pump units which are started before the heat pump units are started are controlled to be closed. The first preset duration can be set according to actual needs, and specific numerical values of the first preset duration are not limited in this embodiment. For example, the first preset time period may be 6 minutes.

Under the condition that the heat pump units which do not meet the heating requirement and are required to be started again according to the target load information, the fact that the number of the started heat pump units in the current air source heat pump system is insufficient is indicated. At this time, in order to improve the cold island effect generated by the air source heat pump system, when the first target number of heat pump units in the air source heat pump system are controlled to be turned on, the first sequencing result already includes a sequencing sequence for sequencing all the heat pump units in the air source heat pump system according to the order of the heat pump units from small to large influence degree of the heat pump units on the cold island effect generated by the air source heat pump system, so that other operations on the first sequencing result are not needed, and the first target number of heat pump units with small influence degree on the cold island effect generated by the air source heat pump system can be preferentially selected to control the first target number of heat pump units to be turned on according to the first sequencing result. Likewise, in the case that it is determined that the heating requirement is not satisfied and the second target number of heat pump units needs to be turned off according to the target load information, it is indicated that the number of the heat pump units that have been turned on in the current air source heat pump system is excessive. At this time, in order to improve the cold island effect generated by the air source heat pump system, when the second target number of heat pump units in the air source heat pump system are controlled to be turned off, the first sequencing result is required to be performed in reverse order, so as to obtain a second sequencing result (namely, a sequencing sequence including sequencing all the heat pump units in the air source heat pump system according to the sequence that the influence degree of the heat pump units on the air source heat pump system is from large to small), and according to the second sequencing result, the second target number of heat pump units with the large influence degree on the air source heat pump system on the cold island effect is preferably selected to be controlled to be turned off. It should be noted that, the degree of influence of the heat pump unit on the air source heat pump system to generate the cold island effect is positively correlated with the influence of ambient wind and/or the temperature of the heat exchange module in the heat pump unit.

Referring to fig. 3, fig. 3 is a flow chart of a control method of another air source heat pump system according to an embodiment of the present application. The embodiment of the application provides a control method of an air source heat pump system, which comprises the following steps:

S301: when the air source heat pump system operates in a heating mode, acquiring environmental wind information of an outdoor environment in which the air source heat pump system is located, wherein the environmental wind information comprises: the actual wind speed of the ambient wind and the actual wind direction of the ambient wind.

In the present embodiment, the step S301 corresponds to the step S201 described above, and reference is made specifically to

S302: determining whether the actual wind speed is less than or equal to a second preset wind speed.

S303: and when the actual wind speed is smaller than or equal to a second preset wind speed, acquiring a second actual temperature of the heat exchange module in each heat pump unit.

S304: and sequencing all the heat pump units in the air source heat pump system according to the sequence from the high second actual temperature to the low second actual temperature of the heat exchange modules in the heat pump units so as to obtain a first sequencing result among all the heat pump units in the air source heat pump system.

S305: when the actual wind speed is greater than a second preset wind speed, determining whether the actual wind speed is less than or equal to the first preset wind speed, wherein the second preset wind speed is less than the first preset wind speed.

For the steps S302 to S305, in order to determine whether the air source heat pump system is affected by the environmental wind of the outdoor environment more accurately, the preset wind speed is divided into a first preset wind speed and a second preset wind speed, the first preset wind speed is smaller than the second preset wind speed, the first preset wind speed and the second preset wind speed can be set according to actual needs, and specific values of the first preset wind speed and the second preset wind speed are not limited in this embodiment. For example, the first preset wind speed may be 2m/s and the second preset wind speed may be 5m/s. When the actual wind speed is smaller than or equal to the second preset wind speed, at the moment, the influence of the ambient wind of the outdoor environment where the air source heat pump system is positioned on the heat pump unit can be ignored, and only the influence of the temperature of the evaporation module in the heat pump unit on the heat pump unit is considered, so that the accuracy of the determined first sequencing sequence is improved, and the cold island effect generated by the air source heat pump system can be better improved when the first sequencing sequence is used for controlling the heat pump unit. And sequencing all the heat pump units in the air source heat pump system according to the obtained third actual temperature of the heat exchange modules in each heat pump unit from small to large, so as to obtain a first sequencing sequence.

S306: and when the actual wind speed is smaller than or equal to the first preset wind speed, acquiring a first actual temperature of the heat exchange module in each heat pump unit.

S307: and determining a first sequencing result among all heat pump units in the air source heat pump system according to the actual wind direction and the first actual temperature of the heat exchange module in each heat pump unit.

S308: and when the actual wind speed is larger than the first preset wind speed, determining a target comparison result between the actual wind direction and the preset wind direction.

S309: and sequencing all the heat pump units in the air source heat pump system according to the target comparison result to obtain a first sequencing result.

S310: and determining target load information corresponding to the air source heat pump system.

S311: and controlling each heat pump unit in the air source heat pump system according to the first sequencing result and the target load information.

For the above steps S306 to S311, steps S306 to S311 are identical to the above steps S202 to S208, and the above description is specifically referred to, and details are not repeated here in this embodiment.

As an example, referring to fig. 4, a control procedure of the air source heat pump system is specifically described as follows:

when the air source heat pump system operates in a heating mode, if the indoor temperature is less than the indoor target temperature-delta T0 (delta T0 defaults to 1 ℃ and is adjustable at 0-5 ℃);

an outdoor wind speed sensor detects the actual wind speed of the ambient wind and an outdoor wind direction sensor detects the actual wind direction of the ambient wind;

if the actual wind speed is less than or equal to the second preset wind speed of 2m/s (adjustable), defaulting to be not influenced by the wind speed of the ambient wind, and sequencing all heat pump units in the air source heat pump system every T1 (T1=10min is adjustable) according to the order of the temperatures of heat exchange modules in the heat pump units from large to small so as to obtain a first sequencing result; when the heat pump unit is determined to be unnecessary to be started or closed again, switching the start and stop of the heat pump unit according to the sequence of the first sequencing result every T2 (T2 = 6min is adjustable); and when the heat pump unit is determined to be turned on or turned off again, the heat pump unit is turned on again according to the first sequencing result or is turned off according to the reverse sequence of the first sequencing result.

If the actual wind speed is greater than the second preset wind speed By 2m/s and less than or equal to the first preset wind speed By 5m/s (adjustable), the unit array is numbered according to the actual wind direction By taking the influence of the wind speed and the temperature of the heat exchange module in the heat pump unit into consideration, and the unit array is marked as Bx, and the unit array is ranked for the second time with the temperature of the heat exchange module in the heat pump unit from large to small and is marked as By; performing third sorting from small to large according to the value of z=x+y to obtain a first sorting result; when the heat pump unit is determined to be unnecessary to be started or closed again, switching the start and stop of the heat pump unit according to the sequence of the first sequencing result every T2 (T2 = 6min is adjustable); and when the heat pump unit is determined to be turned on or turned off again, the heat pump unit is turned on again according to the first sequencing result or is turned off according to the reverse sequence of the first sequencing result.

If the actual wind speed is greater than the first preset wind speed By 5m/s, judging whether the actual wind direction is the first preset wind direction, if the actual wind direction is the first preset wind direction (influenced By the wind direction and the temperature of a heat exchange module in the heat pump unit), numbering the heat pump unit according to the first preset wind direction, marking as Bx, and sequencing the heat pump unit and the temperature of the heat exchange module in the heat pump unit for the second time from high to low, marking as By; performing third sorting from small to large according to the value of z=x+y to obtain a first sorting result; when the heat pump unit is determined to be unnecessary to be started or closed again, switching the start and stop of the heat pump unit according to the sequence of the first sequencing result every T2 (T2 = 6min is adjustable); and when the heat pump unit is determined to be turned on or turned off again, the heat pump unit is turned on again according to the first sequencing result or is turned off according to the reverse sequence of the first sequencing result.

If the actual wind direction is a second preset wind direction (influenced by the wind direction), sequencing the unit array according to the second preset wind direction to obtain a first sequencing result; when the heat pump unit is determined to be unnecessary to be started or closed again, switching the start and stop of the heat pump unit according to the sequence of the first sequencing result every T2 (T2 = 6min is adjustable); and when the heat pump unit is determined to be turned on or turned off again, the heat pump unit is turned on again according to the first sequencing result or is turned off according to the reverse sequence of the first sequencing result.

Fig. 7 is a schematic flow chart of a control device of an air source heat pump unit according to an embodiment of the present application. The control device of the air source heat pump unit provided by the embodiment of the application comprises: the system comprises an acquisition module 10, a determination module 20 and a control module 30, wherein the acquisition module 10 is used for acquiring environmental wind information of an outdoor environment in which the air source heat pump system is located when the air source heat pump system operates in a heating mode; a determining module 20, configured to determine a first ranking result between all the heat pump units in the air source heat pump system according to the ambient wind information, where the first ranking result is used to characterize a ranking relationship between degrees of influence of all the heat pump units in the air source heat pump system on a cold island effect generated by the air source heat pump system; the determining module 20 is configured to determine target load information of an indoor environment in which the air source heat pump system is located; and the control module 30 is used for controlling each heat pump unit in the air source heat pump system according to the first sequencing result and the target load information.

In this embodiment, the ambient wind information includes: the actual wind speed of the ambient wind and the actual wind direction of the ambient wind.

In this embodiment, the determining module 20 is further configured to:

In this embodiment, the preset wind direction includes a first preset wind direction, the heat pump unit includes a first heat exchange section and a second heat exchange section, a heat exchange area corresponding to the first heat exchange section is smaller than a heat exchange area corresponding to the second heat exchange section, and the first preset wind direction faces the first heat exchange section.

In this embodiment, the determining module 20 is further configured to:

when the target comparison result comprises that the actual wind direction is the first preset wind direction, acquiring a first actual temperature of a heat exchange module in each heat pump unit;

And determining a first sequencing result among all the heat pump units in the air source heat pump system according to the actual wind direction and the first actual temperature of the heat exchange modules in each heat pump unit.

In this embodiment, the preset wind direction includes a second preset wind direction, the heat pump unit includes a first heat exchange section and a second heat exchange section, a heat exchange area corresponding to the first heat exchange section is smaller than a heat exchange area corresponding to the second heat exchange section, and the second preset wind direction faces the second heat exchange section.

In this embodiment, the determining module 20 is further configured to:

and sequencing all the heat pump units in the air source heat pump system according to the order of the second actual temperature of the heat exchange modules in the heat pump units from large to small so as to obtain a first sequencing result among all the heat pump units in the air source heat pump system.

In this embodiment, the obtaining module 20 is further configured to:

In this embodiment, the control module 30 is further configured to:

under the condition that the heat pump units which do not meet the heating requirement and are required to be started up by a first target number are determined according to the target load information, determining the heat pump units of the first target number from the air source heat pump systems according to the first sequencing result, and controlling the heat pump units of the first target number to be started up;

performing reverse order operation on the first ordering result to obtain a second ordering result;

under the condition that the heat pump units which do not meet the heating requirement and need to be turned off by a second target number are determined according to the target load information, performing reverse order operation on the first ordering result to obtain a second ordering result;

and determining the second target number of heat pump units from the air source heat pump system according to the first two-order result, and controlling the second target number of heat pump units to be turned off.

In this embodiment, the control module 30 is further configured to:

In the control device for the air source heat pump system provided in this embodiment, when the heat pump units in the air source heat pump system operating in the heating mode are controlled, the influence of the ambient air of the outdoor environment where the air source heat pump system is located on each heat pump unit is considered, so as to influence the cold island effect generated by the air source heat pump system, by monitoring the ambient air information of the outdoor environment where the air source heat pump system is located, according to the influence condition of the monitored ambient air information, the sequencing result between the influence degree of all the heat pump units in the whole air source heat pump system on the cold island effect generated by the air source heat pump system is obtained, and then the heat pump units in the air source heat pump system are controlled according to the sequencing result and the determined target load information corresponding to the air source heat pump system, so as to improve the cold island effect generated by the array type air source heat pump, thereby improving the operation efficiency of the air source heat pump system and reducing the operation energy consumption of the air source heat pump system

Fig. 8 is a schematic structural diagram of an air source heat pump system according to an embodiment of the present invention, and an air source heat pump system 800 shown in fig. 8 includes: at least one processor 801, memory 802, at least one network interface 804, other user interfaces 803. The various components in the air source heat pump system 800 are coupled together by a bus system 805. It is appreciated that the bus system 805 is used to enable connected communications between these components. The bus system 805 includes a power bus, a control bus, and a status signal bus in addition to the data bus. But for clarity of illustration, the various buses are labeled as bus system 805 in fig. 8.

The user interface 803 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, a trackball, a touch pad, or a touch screen, etc.).

It will be appreciated that the memory 802 in embodiments of the invention can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), and Direct memory bus RAM (DRRAM). The memory 802 described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

In some implementations, the memory 802 stores the following elements, executable units or data structures, or a subset thereof, or an extended set thereof: an operating system 8021 and application programs 8022.

The operating system 8021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application 8022 includes various application programs such as a Media Player (Media Player), a Browser (Browser), and the like for realizing various application services. The program for implementing the method of the embodiment of the present invention may be contained in the application program 8022.

In the embodiment of the present invention, by calling a program or an instruction stored in the memory 802, specifically, a program or an instruction stored in the application program 8022, the processor 801 is configured to perform method steps provided by each method embodiment, for example, including: when the air source heat pump system operates in a heating mode, acquiring environmental wind information of an outdoor environment in which the air source heat pump system is positioned; determining a first sequencing result among all the heat pump units in the air source heat pump system according to the environmental wind information, wherein the first sequencing result is used for representing a sequencing relation among influence degrees of all the heat pump units in the air source heat pump system on the air source heat pump system to generate a cold island effect; determining target load information corresponding to the air source heat pump system; and controlling each heat pump unit in the air source heat pump system according to the first sequencing result and the target load information.

The method disclosed in the above embodiment of the present invention may be applied to the processor 801 or implemented by the processor 801. The processor 801 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuitry in hardware in the processor 801 or by instructions in software. The processor 801 described above may be a general purpose processor, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software elements in a decoding processor. The software elements may be located in a random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory 802, and the processor 801 reads information in the memory 802 and, in combination with its hardware, performs the steps of the above method.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For a hardware implementation, the processing units may be implemented within one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processors (Digital Signal Processing, DSP), digital signal processing devices (dspev, DSPD), programmable logic devices (Programmable Logic Device, PLD), field programmable gate arrays (Field-Programmable Gate Array, FPGA), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units designed to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described herein may be implemented by means of units that perform the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

The air source heat pump system provided in this embodiment may be an air source heat pump system as shown in fig. 8, and may perform all steps of the control method of the air source heat pump system as shown in fig. 1 to 4, so as to achieve the technical effects of the control method of the air source heat pump system as shown in fig. 1 to 4, and detailed descriptions with reference to fig. 1 to 4 are omitted herein for brevity.

The embodiment of the invention also provides a storage medium (computer readable storage medium). The storage medium here stores one or more programs. Wherein the storage medium may comprise volatile memory, such as random access memory; the memory may also include non-volatile memory, such as read-only memory, flash memory, hard disk, or solid state disk; the memory may also comprise a combination of the above types of memories.

When one or more programs in the storage medium are executable by one or more processors, the control method of the air source heat pump system executed on the control device side of the air source heat pump system is realized.

The processor is configured to execute a control program of the air source heat pump system stored in the memory, so as to implement the following steps of a control method of the air source heat pump system executed on a control device side of the air source heat pump system: when the air source heat pump system operates in a heating mode, acquiring environmental wind information of an outdoor environment in which the air source heat pump system is positioned; determining a first sequencing result among all the heat pump units in the air source heat pump system according to the environmental wind information, wherein the first sequencing result is used for representing a sequencing relation among influence degrees of all the heat pump units in the air source heat pump system on the air source heat pump system to generate a cold island effect; determining target load information corresponding to the air source heat pump system; and controlling each heat pump unit in the air source heat pump system according to the first sequencing result and the target load information.

Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of function in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware, in a software module executed by a processor, or in a combination of the two. The software modules may be disposed in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims

1. A control method of an air source heat pump system, wherein the air source heat pump system includes a plurality of heat pump units arranged in an array, the method comprising:

2. The method of claim 1, wherein the ambient wind information comprises: the actual wind speed of the ambient wind and the actual wind direction of the ambient wind;

3. The method of claim 2, wherein the preset wind direction comprises a first preset wind direction, the heat pump unit comprises a first heat exchange section and a second heat exchange section, the first heat exchange section corresponds to a heat exchange area smaller than the second heat exchange section, and the first preset wind direction is towards the first heat exchange section;

4. The method of claim 2, wherein the preset wind direction comprises a second preset wind direction, the heat pump unit comprises a first heat exchange section and a second heat exchange section, the first heat exchange section corresponds to a heat exchange area smaller than the second heat exchange section, and the second preset wind direction is towards the second heat exchange section;

5. A method according to claim 3, wherein said determining a first ranking result between all of the heat pump units in the air source heat pump system based on the actual wind direction and a first actual temperature of heat exchange modules in each of the heat pump units comprises:

6. The method of claim 2, wherein said determining a first ranking result between all of the heat pump units in the air source heat pump system based on the ambient wind information comprises:

Sequencing all the heat pump units in the air source heat pump system according to the sequence from the high to the low of the second actual temperature of the heat exchange modules in the heat pump units to obtain a first sequencing result among all the heat pump units in the air source heat pump system;

7. The method according to any one of claims 4 to 6, wherein controlling each of the heat pump units in the air source heat pump system according to the first ranking result and the target load information includes:

and determining the second target number of heat pump units from the air source heat pump system according to the second sequencing result, and controlling the second target number of heat pump units to be turned off.

8. The method according to any one of claims 4 to 6, wherein controlling each of the heat pump units in the air source heat pump system according to the first ranking result and the target load information includes:

9. A control device of an air source heat pump system, wherein the air source heat pump system includes a plurality of heat pump units arranged according to an array, the device comprising:

10. An air source heat pump system, comprising: a processor and a memory, the processor being configured to execute a control program of the air source heat pump system stored in the memory, to implement the control method of the air source heat pump system according to any one of claims 1 to 8.

11. A storage medium storing one or more programs executable by one or more processors to implement the method of controlling an air source heat pump system of any one of claims 1-8.