CN116066922A - Control method and control device of solar air conditioner and solar air conditioner - Google Patents

Abstract

The invention provides a control method and device of a solar air conditioner and the solar air conditioner. The control method of the solar air conditioner comprises the following steps: acquiring a power supply mode of a solar air conditioner; determining that the solar air conditioner is in a solar power supply mode, and acquiring solar input power of the solar air conditioner; and adjusting the carrier frequency of the solar air conditioner according to the solar input power. According to the control method and the control device for the solar air conditioner and the solar air conditioner, the carrier frequency can be adjusted based on the solar input power, so that the carrier frequency of the solar air conditioner can be matched with the solar input power, normal operation of the solar air conditioner is facilitated, and internal electronic components are protected.

Description

Control method and control device of solar air conditioner and solar air conditioner

Technical Field

The invention relates to the technical field of electric appliances, in particular to a control method and device of a solar air conditioner and the solar air conditioner.

Background

New energy has become a new direction of century development, and is influenced by factors in various aspects, domestic power failure and the like, so that people worry about how to get away in the future if the city is in collective power failure.

In the related art, for a solar air conditioner, if the commercial power cannot be supplied in overcast days or under the condition of relatively low power generation, the solar power supply device cannot meet the requirement that the air conditioner operates according to normal operation power, so that the air conditioner operates at low frequency for a long time, and if the air conditioner operates at low frequency for a long time by a press, the carrier frequency of the air conditioner is relatively high, the loss of electronic components is aggravated, and the normal refrigeration and heating operation of the air conditioner is not facilitated.

Disclosure of Invention

The invention provides a control method and a control device of a solar air conditioner and the solar air conditioner, which are used for solving the defects of the solar air conditioner in the prior art and realizing the following technical effects: the carrier frequency of the solar air conditioner can be matched with the solar input power, so that the normal operation of the solar air conditioner is facilitated, and the protection of internal electronic components is also facilitated.

According to an embodiment of the first aspect of the invention, a control method of a solar air conditioner comprises the following steps:

acquiring a power supply mode of a solar air conditioner;

determining that the solar air conditioner is in a solar power supply mode, and acquiring solar input power of the solar air conditioner;

and adjusting the carrier frequency of the solar air conditioner according to the solar input power.

According to one embodiment of the present invention, the step of adjusting the carrier frequency of the solar air conditioner according to the solar input power specifically includes:

and adjusting the carrier frequency of the solar air conditioner according to the comparison result between the solar input power and the first preset power.

According to one embodiment of the present invention, the step of adjusting the carrier frequency of the solar air conditioner according to the comparison result between the solar input power and the first preset power specifically includes:

and according to the fact that the solar energy input power is lower than the first preset power, adjusting the carrier frequency of the solar air conditioner to be reduced to the first preset carrier frequency.

According to an embodiment of the present invention, the step of adjusting the carrier frequency of the solar air conditioner to be reduced to a first preset carrier frequency specifically includes:

and controlling the carrier frequency to gradually decrease to the first preset carrier frequency according to a first preset step length.

According to one embodiment of the invention, the first preset power is 50% of the rated operating power of the solar air conditioner, or the first preset power is 30% of the maximum operating power of the solar air conditioner.

According to one embodiment of the present invention, the step of adjusting the carrier frequency of the solar air conditioner according to the solar input power specifically includes:

and adjusting the carrier frequency of the solar air conditioner according to the interval range of the solar input power.

According to an embodiment of the present invention, the step of adjusting the carrier frequency of the solar air conditioner according to the interval range where the solar input power is located specifically includes:

according to the fact that the solar energy input power is in a first power interval, adjusting the carrier frequency to a second preset carrier frequency;

according to the fact that the solar energy input power is in a second power interval, adjusting the carrier frequency to a third preset carrier frequency;

the first power interval is higher than the second power interval, and the second preset carrier frequency is higher than the third preset carrier frequency.

According to one embodiment of the present invention, the step of adjusting the carrier frequency to a second preset carrier frequency includes: controlling the carrier frequency to gradually change to the second preset carrier frequency according to a second preset step length;

the step of adjusting the carrier frequency to a third predetermined carrier frequency includes: and controlling the carrier frequency to gradually change to the third preset carrier frequency according to a third preset step length.

According to one embodiment of the present invention, after the power supply mode of the solar air conditioner is acquired, the control method of the solar air conditioner further includes:

determining that the solar air conditioner is in a mixed power supply mode or a commercial power supply mode, and acquiring the total input power of the solar air conditioner;

and adjusting the carrier frequency of the solar air conditioner according to the comparison result of the total input power and the second preset power.

According to an embodiment of the present invention, the step of adjusting the carrier frequency of the solar air conditioner according to the comparison result of the total input power and the second preset power specifically includes:

and adjusting the carrier frequency to rise to a fourth preset carrier frequency according to the fact that the total input power is higher than the second preset power.

According to a second aspect of the present invention, a control device for a solar air conditioner includes:

the first acquisition module is used for acquiring a power supply mode of the solar air conditioner;

the second acquisition module is used for determining that the solar air conditioner is in a solar power supply mode and acquiring solar input power of the solar air conditioner;

and the first control module is used for adjusting the carrier frequency of the solar air conditioner according to the solar input power.

According to a third aspect of the present invention, a solar air conditioner includes:

a control device or a controller of a solar air conditioner according to an embodiment of the second aspect of the present invention is configured to execute the control method of a solar air conditioner according to the embodiment of the first aspect of the present invention;

the solar air conditioner body comprises a solar power supply device and an air conditioner, wherein the solar power supply device supplies power to the air conditioner.

According to the control method and the control device for the solar air conditioner and the solar air conditioner, the carrier frequency can be adjusted based on the solar input power, so that the carrier frequency of the solar air conditioner can be matched with the solar input power, normal operation of the solar air conditioner is facilitated, and internal electronic components are protected.

In addition, the control method of the solar air conditioner does not adopt fixed carrier frequency, but effectively adjusts the carrier frequency according to solar input power, and by changing the carrier frequency, the air conditioner adopts lower carrier frequency when in low-power operation, reduces loss, reduces heating, and adopts higher carrier frequency when in high-power operation, thereby reducing noise of a compressor, reducing heating of the compressor and improving performance and stability of a system.

Drawings

In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic flow chart of a control method of a solar air conditioner provided by the invention;

fig. 2 is a schematic structural diagram of a control device of a solar air conditioner provided by the invention;

fig. 3 is a schematic structural diagram of an electronic device provided by the present invention.

Detailed Description

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

The control method and device of the solar air conditioner and the solar air conditioner are described below with reference to the accompanying drawings. Before the embodiments of the present invention are described in detail, the entire application scenario is described. The control method, the control device, the electronic equipment and the computer readable storage medium of the solar air conditioner can be applied to the local solar air conditioner, cloud platforms in the field of the Internet, cloud platforms in the field of other kinds of Internet, or third party equipment. The third party device may include a mobile phone, a tablet computer, a notebook computer, a vehicle-mounted computer, and other intelligent terminals.

In the following, a control method suitable for a solar air conditioner is only described as an example, and it should be understood that the control method according to the embodiment of the present invention may also be suitable for a cloud platform and a third party device.

It should be noted that the control method of the solar air conditioner provided by the invention has universality, namely the method is simultaneously suitable for refrigerating or heating the fixed-frequency air conditioner in a low-temperature environment or a high-temperature environment.

As shown in fig. 1, a control method of a solar air conditioner according to an embodiment of a first aspect of the present invention includes:

step 100, acquiring a power supply mode of a solar air conditioner;

step 200, determining that a solar air conditioner is in a solar power supply mode, and acquiring solar input power of the solar air conditioner;

step 300, according to the solar energy input power, the carrier frequency of the solar air conditioner is adjusted.

For the control method of the solar air conditioner provided by the invention, firstly, it is pointed out that the solar air conditioner refers to a household appliance which utilizes a solar power supply device to supply power to the air conditioner, and the solar air conditioner has the following three power supply modes: the first power supply mode is a solar power supply mode for supplying power by using the solar power supply device only, the second power supply mode is a mixed power supply mode for supplying power by using the solar power supply device and the mains supply simultaneously, and the third power supply mode is a mains supply mode for supplying power by using the mains supply only, wherein the solar air conditioner can flexibly select different power supply modes according to specific power consumption requirements and use requirements.

In addition, it should be explained that, when the solar air conditioner is running, there is a carrier frequency corresponding to the parameters of the load sine wave equivalent control implemented by the compressor control in the solar air conditioner, where the carrier frequency affects the running power of the IGBT components in the compressor frequency converter, for example, the carrier frequency is too high, and although the noise reduction effect can be achieved, the energy consumption and the temperature are too high, which is unfavorable for the normal running of the components.

According to the control method of the solar air conditioner, the specific working process is as follows: in step 100, the controller first determines a power supply mode of the solar air conditioner under a current operation, where the power supply mode includes a solar power supply mode, a hybrid power supply mode, and a utility power supply mode. It should be noted that, the controller may determine the specific power supply mode of the solar air conditioner by acquiring the input condition of the external command or by determining the power supply condition of the commercial power and the solar power supply device.

In step 200, when the controller determines that the solar air conditioner only uses the solar power supply device to supply power to the solar air conditioner, that is, the solar air conditioner is in the solar power supply mode, the solar input power of the solar power supply device to the solar air conditioner is the total input power of the external device to the solar air conditioner, so that the air conditioner obtains the current solar input power.

In step 300, after the controller obtains the solar energy input power, the carrier frequency of the solar energy air conditioner is adjusted according to the specific size of the solar energy input power, so that the carrier frequency of the solar energy air conditioner can be matched with the solar energy input power, thereby being beneficial to the normal operation of the solar energy air conditioner and protecting the internal electronic components.

In the related art, for a solar air conditioner, if the commercial power cannot be supplied in overcast days or under the condition of relatively low power generation, the solar power supply device cannot meet the requirement that the air conditioner operates according to normal operation power, so that the air conditioner operates at low frequency for a long time, and if the air conditioner operates at low frequency for a long time by a press, the carrier frequency of the air conditioner is relatively high, the loss of electronic components is aggravated, and the normal refrigeration and heating operation of the air conditioner is not facilitated.

In summary, in order to solve the technical problems in the related art, the present invention provides a control method of a solar air conditioner, which can adjust a carrier frequency based on solar input power, so that the carrier frequency of the solar air conditioner can be matched with the solar input power, thereby being beneficial to normal operation of the solar air conditioner and protecting internal electronic components.

For example, the controller acquires the specific magnitude of the solar input power in real time, and compares the solar input power with other preset values or preset interval ranges to judge the magnitude of the solar input power, thereby adjusting the magnitude of the carrier frequency. Specifically, when the solar input power is small, the controller controls the carrier frequency to decrease; when the solar energy input power is larger, the controller controls the carrier frequency to increase.

Therefore, the control method of the solar air conditioner does not adopt fixed carrier frequency, but effectively adjusts the carrier frequency according to the solar input power, and by changing the carrier frequency, the air conditioner adopts lower carrier frequency when in low-power operation, reduces loss, reduces heating, and adopts higher carrier frequency when in high-power operation, thereby reducing the noise of a compressor, reducing the heating of the compressor and improving the performance and the stability of a system.

According to some embodiments of the invention, the step of adjusting the carrier frequency of the solar air conditioner according to the solar input power specifically comprises:

and adjusting the carrier frequency of the solar air conditioner according to the comparison result between the solar input power and the first preset power.

Further, according to the comparison result between the solar energy input power and the first preset power, the step of adjusting the carrier frequency of the solar air conditioner specifically includes:

and according to the fact that the solar energy input power is lower than the first preset power, the carrier frequency of the solar air conditioner is regulated to be reduced to the first preset carrier frequency.

In this embodiment, a first preset power is preset in advance, so that the solar input power is compared with the first preset power, when the solar input power is lower than the first preset power, it is proved that the solar power supply device is insufficient for supplying power to the air conditioner, and the power requirement of the air conditioner in normal operation cannot be met, at this time, the air conditioner is currently operated in a low-frequency or high-temperature state, so that in order to protect electronic components and ensure the normal operation of the air conditioner, the carrier frequency is regulated by the controller to be reduced to the first preset carrier frequency.

When the solar energy input power is higher than the first preset power, the solar energy power supply device is proved to supply enough power to the air conditioner, and the power requirement of the air conditioner in normal operation can be met, so that the controller can control the air conditioner to still operate according to the carrier frequency set by the original system.

It should be noted that, the first preset power may be obtained by a user setting in advance, or may also be obtained by a default setting of the system, or the first preset power may be obtained according to other power parameters, which is not limited herein.

Preferably, the control method of the present invention further includes: and determining the first preset power according to the rated operating power or the maximum operating power of the solar air conditioner.

For example, the preset power is 50% of the rated operation power of the solar air conditioner, or the preset power is 30% of the maximum operation power of the solar air conditioner. That is, when the preset power is 50% of the rated operation power of the solar air conditioner, if the controller determines that the solar input power is lower than 50% of the rated operation power of the solar air conditioner, the controller controls the carrier frequency to be reduced to the first preset carrier frequency; or when the preset power is 30% of the maximum operating power of the solar air conditioner, if the controller determines that the solar input power is lower than 30% of the maximum operating power of the solar air conditioner, the controller controls the carrier frequency to be reduced to the first preset carrier frequency.

It should be further noted that the first preset carrier frequency may be determined by a user setting in advance, or may be determined by a default setting of the system, or the first preset power may be determined according to other operating parameters, which is not limited in this disclosure.

Preferably, the control method of the present invention further includes: and determining a first preset carrier frequency according to the ratio or the difference of the solar energy input power relative to the rated operation power of the solar air conditioner. For example, when the solar input power is equal to 40% of the rated operating power, the first preset carrier frequency is 40% of the set carrier frequency of the original system.

According to some embodiments of the present invention, the step of adjusting the carrier frequency of the solar air conditioner to be reduced to a first preset carrier frequency specifically includes:

and controlling the carrier frequency to gradually decrease to the first preset carrier frequency according to the first preset step length.

In this embodiment, when the solar input power of the solar air conditioner is lower than the first preset power, the carrier frequency is controlled to gradually decrease from the original carrier frequency to the first preset carrier frequency in a first preset step. Therefore, by reasonably setting the size of the first preset step length, the carrier frequency is adjusted to be gradually changed, so that the smooth adjustment of the carrier frequency is realized, the stability of the air conditioner system is improved, and the damage of the carrier frequency instant heightening power module is avoided.

Further, the first preset step size may be set as: the decrease is 0.2KHz every 100 milliseconds. Of course, the first preset step size may be set to other values, which is not particularly limited herein. It should be noted that, personnel can select a first preset step length with a proper value according to specific requirements,

thus, if the first preset step size is too small, the stability of the solar air conditioner is affected, and if the first preset step size is too large, the power module may be damaged. Therefore, the invention can realize the average uniform adjustment of the carrier frequency by setting the first preset step length to a proper value, improves the stability of the air conditioner and the system thereof, and avoids the damage of the power module for instantly heightening the carrier frequency.

According to other embodiments of the present invention, the step of adjusting the carrier frequency of the solar air conditioner according to the solar input power specifically includes:

and adjusting the carrier frequency of the solar air conditioner according to the interval range where the solar input power is located.

Therefore, the carrier frequency is adjusted according to the interval range with different sizes by determining the interval range where the solar energy input power is located, so that the carrier frequency can be adapted to the current solar energy input power, and the normal work of the solar air conditioner is ensured.

In some embodiments, the step of adjusting the carrier frequency of the solar air conditioner according to the interval range where the solar input power is located specifically includes:

according to the fact that the solar energy input power is in a first power interval, adjusting the carrier frequency to a second preset carrier frequency;

according to the fact that the solar energy input power is in the second power interval, adjusting the carrier frequency to a third preset carrier frequency;

the first power interval is higher than the second power interval, and the second preset carrier frequency is higher than the third preset carrier frequency.

For example, the carrier frequency in embodiments of the present invention may include multiple carrier frequency bands including, but not limited to, a low frequency carrier frequency band, a medium carrier frequency band, and a higher carrier frequency band. The low frequency carrier band may be 1Khz-5Khz, while the medium carrier frequency may be 6Khz-10Khz and the higher carrier band may be 11Khz-15Khz. Solar air conditioners can also be classified into a low frequency operation state, a normal operation state, and a high frequency operation state according to the difference of solar input power.

When the solar air conditioner is in a normal running state, the solar input power is in a range higher than the second power interval and lower than the first power interval, and the carrier frequency of the air conditioner is set to be a value in a medium carrier frequency section according to the original system.

When the solar air conditioner is in a high-frequency running state, the solar input power is in a first power interval, and at the moment, the second preset carrier frequency can take a value in a high-order carrier frequency band, namely, the controller increases the carrier frequency from the original carrier frequency to a certain frequency value in the high-order carrier frequency band.

When the solar air conditioner is in a low-frequency running state, the solar input power is in a second power interval, and at the moment, the third preset carrier frequency can take a value in the low-frequency carrier frequency band, namely, the controller reduces the carrier frequency from the original carrier frequency to a certain frequency value in the low-frequency carrier frequency band.

Of course, the specific values of the first power interval, the second preset carrier frequency and the third preset carrier frequency of the present invention are not limited to the above embodiments, and the present invention is not limited thereto.

Further, the step of adjusting the carrier frequency to a second predetermined carrier frequency includes: and controlling the carrier frequency to gradually change to a second preset carrier frequency according to a second preset step length.

In this embodiment, when the solar input power of the solar air conditioner is in the first power interval, the carrier frequency is controlled to gradually increase from the original carrier frequency to the second preset carrier frequency in a second preset step. Therefore, by reasonably setting the size of the second preset step length, the carrier frequency is adjusted to be gradually changed, so that the smooth adjustment of the carrier frequency is realized, the stability of the air conditioner system is improved, and the damage of the carrier frequency instant heightening power module is avoided.

Further, the step of adjusting the carrier frequency to a third predetermined carrier frequency includes: and controlling the carrier frequency to gradually change to a third preset carrier frequency according to a third preset step length.

In this embodiment, when the solar input power of the solar air conditioner is in the second power interval, the carrier frequency is controlled to gradually decrease from the original carrier frequency to the third preset carrier frequency in a third preset step. Therefore, by reasonably setting the size of the third preset step length, the carrier frequency is adjusted to be gradually changed, so that the smooth adjustment of the carrier frequency is realized, the stability of the air conditioner system is improved, and the damage of the carrier frequency instant heightening power module is avoided.

According to some embodiments of the invention, after acquiring the power supply mode of the solar air conditioner, the control method of the solar air conditioner further includes:

determining that the solar air conditioner is in a hybrid power supply mode or a commercial power supply mode, and acquiring the total input power of the solar air conditioner;

and adjusting the carrier frequency of the solar air conditioner according to the comparison result of the total input power and the second preset power.

Further, according to the comparison result of the total input power and the second preset power, the step of adjusting the carrier frequency of the solar air conditioner specifically includes:

and adjusting the carrier frequency to rise to a fourth preset carrier frequency according to the fact that the total input power is higher than the second preset power.

In this embodiment, when the solar air conditioner is in the hybrid power supply mode or the mains power supply mode, the external power is sufficient to supply power to the air conditioner, so that the air conditioner rarely operates at a low frequency, but the air conditioner is extremely easy to operate at a high frequency, and when the controller detects that the total input power is too high to cause the air conditioner to operate at a high frequency, the controller adjusts the carrier frequency to rise to a fourth preset carrier frequency, so that the current carrier frequency is adapted to and matched with the current operating power of the air conditioner, and the stable operation of the air conditioner is ensured.

The control device of the solar air conditioner provided by the invention is described below, and the control device of the solar air conditioner described below and the control method of the solar air conditioner described above can be correspondingly referred to each other.

As shown in fig. 2, a control device for a solar air conditioner according to an embodiment of a second aspect of the present invention includes:

a first obtaining module 110, configured to obtain a power supply mode of the solar air conditioner;

the second obtaining module 120 is configured to determine that the solar air conditioner is in a solar power supply mode, and obtain solar input power of the solar air conditioner;

the first control module 130 is configured to adjust a carrier frequency of the solar air conditioner according to the solar input power.

The solar air conditioner according to the embodiment of the third aspect of the invention comprises the control device or the controller of the solar air conditioner according to the second aspect of the invention. The controller is used for executing the control method of the solar air conditioner.

The solar air conditioner further comprises a solar air conditioner body, wherein the solar air conditioner body comprises a solar power supply device and an air conditioner, and the solar power supply device supplies power to the air conditioner.

The technical effects of the control device for the solar air conditioner and the solar air conditioner according to the embodiments of the present invention are similar to those of the control method for the solar air conditioner, and are not described herein.

Fig. 3 illustrates a physical schematic diagram of an electronic device, as shown in fig. 3, where the electronic device may include: processor 810, communication interface (Communications Interface) 820, memory 830, and communication bus 840, wherein processor 810, communication interface 820, memory 830 accomplish communication with each other through communication bus 840. The processor 810 may invoke logic instructions in the memory 830 to perform the control method of the solar air conditioner described above.

Further, the logic instructions in the memory 830 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method of the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

In another aspect, the present invention also provides a computer program product comprising a computer program storable on a non-transitory computer readable storage medium, the computer program, when executed by a processor, being capable of performing the method of controlling a solar air conditioner as described above.

In yet another aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the control method of the solar air conditioner described above.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (12)

1. A control method of a solar air conditioner, comprising:

acquiring a power supply mode of a solar air conditioner;

determining that the solar air conditioner is in a solar power supply mode, and acquiring solar input power of the solar air conditioner;

and adjusting the carrier frequency of the solar air conditioner according to the solar input power.

2. The method for controlling a solar air conditioner according to claim 1, wherein the step of adjusting the carrier frequency of the solar air conditioner according to the solar input power comprises:

and adjusting the carrier frequency of the solar air conditioner according to the comparison result between the solar input power and the first preset power.

3. The method for controlling a solar air conditioner according to claim 2, wherein the step of adjusting the carrier frequency of the solar air conditioner according to the comparison result between the solar input power and the first preset power specifically comprises:

and according to the fact that the solar energy input power is lower than the first preset power, adjusting the carrier frequency of the solar air conditioner to be reduced to the first preset carrier frequency.

4. The method for controlling a solar air conditioner according to claim 3, wherein the step of adjusting the carrier frequency of the solar air conditioner to be reduced to a first preset carrier frequency specifically comprises:

and controlling the carrier frequency to gradually decrease to the first preset carrier frequency according to a first preset step length.

5. The method of any one of claims 2 to 4, wherein the first preset power is 50% of the rated operating power of the solar air conditioner or 30% of the maximum operating power of the solar air conditioner.

6. The method for controlling a solar air conditioner according to claim 1, wherein the step of adjusting the carrier frequency of the solar air conditioner according to the solar input power comprises:

and adjusting the carrier frequency of the solar air conditioner according to the interval range of the solar input power.

7. The method for controlling a solar air conditioner according to claim 6, wherein the step of adjusting the carrier frequency of the solar air conditioner according to the range of the interval in which the solar input power is located specifically includes:

according to the fact that the solar energy input power is in a first power interval, adjusting the carrier frequency to a second preset carrier frequency;

according to the fact that the solar energy input power is in a second power interval, adjusting the carrier frequency to a third preset carrier frequency;

the first power interval is higher than the second power interval, and the second preset carrier frequency is higher than the third preset carrier frequency.

8. The method of claim 7, wherein the step of adjusting the carrier frequency to a second preset carrier frequency comprises: controlling the carrier frequency to gradually change to the second preset carrier frequency according to a second preset step length;

the step of adjusting the carrier frequency to a third predetermined carrier frequency includes: and controlling the carrier frequency to gradually change to the third preset carrier frequency according to a third preset step length.

9. The method for controlling a solar air conditioner according to claim 1, further comprising, after the acquisition of the power supply mode of the solar air conditioner:

determining that the solar air conditioner is in a mixed power supply mode or a commercial power supply mode, and acquiring the total input power of the solar air conditioner;

and adjusting the carrier frequency of the solar air conditioner according to the comparison result of the total input power and the second preset power.

10. The method for controlling a solar air conditioner according to claim 9, wherein the step of adjusting the carrier frequency of the solar air conditioner according to the comparison result of the total input power and the second preset power specifically comprises:

and adjusting the carrier frequency to rise to a fourth preset carrier frequency according to the fact that the total input power is higher than the second preset power.

11. A control device of a solar air conditioner, comprising:

the first acquisition module is used for acquiring a power supply mode of the solar air conditioner;

the second acquisition module is used for determining that the solar air conditioner is in a solar power supply mode and acquiring solar input power of the solar air conditioner;

and the first control module is used for adjusting the carrier frequency of the solar air conditioner according to the solar input power.

12. A solar air conditioner, comprising:

a controller for executing the control method of the solar air conditioner according to any one of the above claims 1 to 10, or the control device of the solar air conditioner according to claim 11;

the solar air conditioner body comprises a solar power supply device and an air conditioner, wherein the solar power supply device supplies power to the air conditioner.

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