Control method and device of photovoltaic air conditioner, electronic equipment and storage medium

Abstract

The embodiment of the invention provides a photovoltaic air conditioner control method and device, electronic equipment and a storage medium, photovoltaic voltage data of photovoltaic panel sets of a plurality of photovoltaic air conditioners are obtained, then according to the photovoltaic voltage data and a preset grouping condition, at least one photovoltaic equipment set is determined, target photovoltaic voltage of a target photovoltaic air conditioner in the photovoltaic equipment set is determined, and the target photovoltaic voltage of the target photovoltaic air conditioner in the photovoltaic equipment set is obtained. And then according to the target photovoltaic voltage, a target compressor frequency value of the target photovoltaic air conditioner is determined, and for each photovoltaic equipment group, the frequencies of compressors of the multiple photovoltaic air conditioners in the photovoltaic equipment group are controlled according to the target compressor frequency value. Through the mode that the frequency of the compressor of the photovoltaic air conditioner is controlled to be the target compressor frequency value, the problems that when power supply is insufficient under some operation working conditions, the operation load of an air conditioner unit is increased, and the service life of the compressor is shortened are solved, and through the mode of determining the photovoltaic equipment set, the power supply efficiency is improved. The compressor frequency of the photovoltaic air conditioner can be uniformly configured, and the configuration efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and particularly to a control method, device, electronic device, and storage medium for a photovoltaic air conditioner. Background Art

[0002] Currently, the power supply mode of air conditioning equipment mainly relies on the traditional mains power system. However, with China's emphasis on the development and utilization of renewable energy, the rich solar energy resources are becoming an important support for energy transformation. In this context, as a representative solution for clean energy utilization, solar photovoltaic power generation technology has been widely applied and promoted across the country. Especially in the household appliance field, photovoltaic power generation technology is gradually integrating deeply with high-power electrical appliances such as air conditioners.

[0003] However, the energy conversion efficiency of solar photovoltaic power generation technology is restricted by multiple factors, mainly including performance parameters of photovoltaic panels, conversion efficiency of inverters, and variables such as solar irradiance intensity. Especially in the practical application of a photovoltaic air conditioning system, due to differences in building orientation, installation location, and surrounding environment, the photovoltaic modules of different users may be in a backlight or frontlight state during daytime operation, which may cause a problem of mismatch between photovoltaic power supply and compressor frequency. In the actual operation of a photovoltaic air conditioner, when there is a problem of insufficient power supply under certain operating conditions, this will not only increase the operating load of the air conditioning unit, but also may cause the compressor to be in a non-ideal working state for a long time, thereby accelerating equipment aging and shortening its service life. Summary of the Invention

[0004] In view of the above problems, embodiments of the present invention are proposed to provide a control method, device, electronic device, and storage medium for a photovoltaic air conditioner that can overcome or at least partially solve the above problems.

[0005] To solve the above problems, embodiments of the present invention disclose a control method for a photovoltaic air conditioner, where the photovoltaic air conditioner includes a photovoltaic panel group and a compressor, and the method includes:

[0006] Obtain photovoltaic voltage data of the photovoltaic panel groups of multiple such photovoltaic air conditioners;

[0007] Determine at least one photovoltaic equipment group according to the photovoltaic voltage data and preset grouping conditions;

[0008] Determine the target photovoltaic voltage of the target photovoltaic air conditioner in the photovoltaic equipment group;

[0009] Determine the target compressor frequency value of the target photovoltaic air conditioner according to the target photovoltaic voltage;

[0010] For each of the photovoltaic device groups, control the frequencies of the compressors of multiple photovoltaic air conditioners in the photovoltaic device group according to the target compressor frequency value.

[0011] Optionally, the photovoltaic voltage data includes multiple sets of photovoltaic voltages at multiple moments, and each set of photovoltaic voltages includes the photovoltaic voltages of the photovoltaic panel groups of multiple photovoltaic air conditioners at the same moment. The determining of at least one photovoltaic device group according to the photovoltaic voltage data and a preset grouping condition includes:

[0012] Determine a reference photovoltaic air conditioner among the multiple photovoltaic air conditioners;

[0013] According to the multiple sets of photovoltaic voltages and the reference photovoltaic air conditioner, determine the photovoltaic device group, and the absolute value of the voltage difference between each photovoltaic air conditioner in the photovoltaic device group and the reference photovoltaic air conditioner at N moments is less than a preset voltage, where N is a positive integer.

[0014] Optionally, the determining of the photovoltaic device group according to the multiple sets of photovoltaic voltages and the reference photovoltaic air conditioner includes:

[0015] According to the multiple sets of photovoltaic voltages, determine the absolute value of the voltage difference between each photovoltaic air conditioner and the reference photovoltaic air conditioner at the multiple moments;

[0016] For each photovoltaic air conditioner, if at least N voltage difference absolute values in the voltage difference absolute values corresponding to the multiple moments are less than the preset voltage, determine that the photovoltaic air conditioner and the reference photovoltaic air conditioner are in the same photovoltaic device group.

[0017] Optionally, the determining of the target compressor frequency value of the target photovoltaic air conditioner includes:

[0018] Set the frequency of the compressor of the target photovoltaic air conditioner to a preset frequency value;

[0019] After setting the frequency of the compressor of the target photovoltaic air conditioner to the preset frequency value, determine the first temperature change rate corresponding to the target photovoltaic air conditioner;

[0020] Determine a candidate frequency value according to the preset frequency value;

[0021] Set the frequency of the compressor of the target photovoltaic air conditioner to the candidate frequency value;

[0022] After setting the frequency of the compressor of the target photovoltaic air conditioner to the candidate frequency value, determine the second temperature change rate corresponding to the target photovoltaic air conditioner;

[0023] If the first temperature change rate is greater than the second temperature change rate, determine that the candidate frequency value is the target compressor frequency of the photovoltaic air conditioner;

[0024] If the first temperature change rate is less than or equal to the second temperature change rate, return to the step of determining a candidate frequency value according to the preset frequency value.

[0025] Optionally, determining the candidate frequency value according to the preset frequency value includes:

[0026] Taking the sum of the preset frequency value and the preset variable as the candidate frequency value;

[0027] Or, taking the difference between the preset frequency value and the preset variable as the candidate frequency value.

[0028] Optionally, after setting the frequency of the compressor of the target photovoltaic air conditioner to the preset frequency value, determining the first temperature change rate corresponding to the target photovoltaic air conditioner includes:

[0029] Obtaining the first indoor temperature corresponding to the target photovoltaic air conditioner and the second indoor temperature at a preset time interval;

[0030] Determining the first temperature change rate according to the first indoor temperature and the second indoor temperature.

[0031] Optionally, determining the target compressor frequency value of the target photovoltaic air conditioner according to the target photovoltaic voltage includes:

[0032] Judging whether the target photovoltaic voltage is greater than or equal to a preset photovoltaic voltage and less than a preset working voltage;

[0033] If the target photovoltaic voltage is greater than the preset photovoltaic voltage and less than the preset working voltage, determining the target compressor frequency value of the target photovoltaic air conditioner.

[0034] Optionally, controlling the frequencies of the compressors of multiple photovoltaic air conditioners in the photovoltaic device group according to the target compressor frequency value includes:

[0035] Sending the target compressor frequency value to the photovoltaic air conditioners in the photovoltaic device group other than the target photovoltaic air conditioner, so that the photovoltaic air conditioners other than the target photovoltaic air conditioner adjust the frequencies of their compressors according to the target compressor frequency value.

[0036] Correspondingly, an embodiment of the present invention discloses a control device for a photovoltaic air conditioner. The photovoltaic air conditioner includes a photovoltaic panel group and a compressor. The device includes:

[0037] A photovoltaic voltage data acquisition module, configured to acquire photovoltaic voltage data of the photovoltaic panel groups of multiple photovoltaic air conditioners;

[0038] A photovoltaic device group determination module, configured to determine at least one photovoltaic device group according to the photovoltaic voltage data and preset grouping conditions;

[0039] A target photovoltaic voltage determination module, configured to determine the target photovoltaic voltage of a target photovoltaic air conditioner in the photovoltaic device group;

[0040] A target compressor frequency value determination module, configured to determine the target compressor frequency value of the target photovoltaic air conditioner according to the target photovoltaic voltage;

[0041] A frequency control module, configured to control the frequencies of the compressors of multiple photovoltaic air conditioners in each photovoltaic device group according to the target compressor frequency value for each photovoltaic device group.

[0042] Optionally, the photovoltaic voltage data includes multiple sets of photovoltaic voltages at multiple moments, and each set of photovoltaic voltages includes the photovoltaic voltages of the photovoltaic panel groups of multiple photovoltaic air conditioners at the same moment. The photovoltaic device group determination module includes:

[0043] A reference photovoltaic air conditioner determination sub-module, configured to determine a reference photovoltaic air conditioner among multiple photovoltaic air conditioners;

[0044] A photovoltaic device group determination sub-module, configured to determine the photovoltaic device group according to the multiple sets of photovoltaic voltages and the reference photovoltaic air conditioner. The absolute value of the voltage difference between each photovoltaic air conditioner in the photovoltaic device group and the reference photovoltaic air conditioner at N moments is less than a preset voltage, and N is a positive integer.

[0045] Optionally, the photovoltaic device group determination sub-module includes:

[0046] An absolute value of voltage difference determination unit, configured to determine the absolute value of the voltage difference between each photovoltaic air conditioner and the reference photovoltaic air conditioner at the multiple moments according to the multiple sets of photovoltaic voltages;

[0047] A photovoltaic device group determination unit, configured to, for each photovoltaic air conditioner, if at least N absolute values of voltage differences in the absolute values of voltage differences corresponding to the multiple moments are less than the preset voltage, determine that the photovoltaic air conditioner and the reference photovoltaic air conditioner are in the same photovoltaic device group.

[0048] Optionally, the target compressor frequency value determination module includes:

[0049] A preset frequency value setting sub-module, configured to set the frequency of the compressor of the target photovoltaic air conditioner to a preset frequency value;

[0050] A first temperature change rate determination sub-module, configured to determine the first temperature change rate corresponding to the target photovoltaic air conditioner after setting the frequency of the compressor of the target photovoltaic air conditioner to the preset frequency value;

[0051] A candidate frequency value determination sub-module, configured to determine a candidate frequency value according to the preset frequency value;

[0052] A candidate frequency value setting sub-module, configured to set the frequency of the compressor of the target photovoltaic air conditioner to the candidate frequency value;

[0053] A second temperature change rate determination sub-module, configured to determine a second temperature change rate corresponding to the target photovoltaic air conditioner after setting the frequency of the compressor of the target photovoltaic air conditioner to the candidate frequency value;

[0054] A target compressor frequency determination sub-module, configured to determine the candidate frequency value as the target compressor frequency of the photovoltaic air conditioner if the first temperature change rate is greater than the second temperature change rate;

[0055] A candidate frequency value re-determination sub-module, configured to return to the step of determining a candidate frequency value according to the preset frequency value if the first temperature change rate is less than or equal to the second temperature change rate.

[0056] Optionally, the candidate frequency value determination sub-module includes:

[0057] A first candidate frequency value determination unit, configured to use the sum of the preset frequency value and the preset variable as the candidate frequency value;

[0058] Or, a second candidate frequency value determination unit, which uses the difference between the preset frequency value and the preset variable as the candidate frequency value.

[0059] Optionally, the first temperature change rate determination sub-module includes:

[0060] An indoor temperature acquisition unit, configured to acquire a first indoor temperature corresponding to the target photovoltaic air conditioner and a second indoor temperature at a preset time interval;

[0061] A first temperature change rate determination unit, configured to determine the first temperature change rate according to the first indoor temperature and the second indoor temperature.

[0062] Optionally, the target compressor frequency value determination module includes:

[0063] A judgment sub-module, configured to judge whether the target photovoltaic voltage is greater than or equal to a preset photovoltaic voltage and less than a preset operating voltage;

[0064] A determination sub-module, configured to determine the target compressor frequency value of the target photovoltaic air conditioner if the target photovoltaic voltage is greater than the preset photovoltaic voltage and less than the preset operating voltage.

[0065] Optionally, the frequency control module includes:

[0066] A target compressor frequency value sending sub-module, configured to send the target compressor frequency value to the photovoltaic air conditioners in the photovoltaic device group except the target photovoltaic air conditioner, so that the photovoltaic air conditioners except the target photovoltaic air conditioner adjust the frequency of the compressor according to the target compressor frequency value.

[0067] Correspondingly, an embodiment of the present invention discloses an electronic device, including: a processor, a memory, and a computer program stored on the memory and capable of running on the processor. When the computer program is executed by the processor, each step of the above-mentioned embodiment of the control method for a photovoltaic air conditioner is implemented.

[0068] Correspondingly, an embodiment of the present invention discloses a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, each step of the above-mentioned embodiment of the control method for a photovoltaic air conditioner is implemented.

[0069] The embodiments of the present invention have the following advantages:

[0070] In an embodiment of a control method for a photovoltaic air conditioner of the present invention, the photovoltaic air conditioner includes a photovoltaic panel group and a compressor. First, photovoltaic voltage data of the photovoltaic panel groups of multiple photovoltaic air conditioners is obtained, and then at least one photovoltaic device group is determined according to the photovoltaic voltage data and a preset grouping condition. The target photovoltaic voltage of the target photovoltaic air conditioner in the photovoltaic device group is determined, and then the target compressor frequency value of the target photovoltaic air conditioner is determined according to the target photovoltaic voltage. Since the energy conversion efficiency of solar photovoltaic power generation technology is restricted by multiple factors, in the actual operation of a photovoltaic air conditioner, when the photovoltaic conversion efficiency decreases, there is a problem that when the air conditioner reaches a certain operating state, the photovoltaic power supply cannot meet the requirement when the compressor operates at a preset frequency. By controlling the frequency of the compressor of the photovoltaic air conditioner to be the target compressor frequency value, the problem that the operating load of the air conditioner unit increases and the service life of the compressor is reduced when there is insufficient power supply in some operating conditions is avoided. For each photovoltaic device group, according to the target compressor frequency value, the frequencies of the compressors of multiple photovoltaic air conditioners in the photovoltaic device group are controlled. By determining the photovoltaic device group according to the photovoltaic voltage data of the photovoltaic panel groups of multiple photovoltaic air conditioners, the frequency of the compressor of the photovoltaic air conditioner can be uniformly configured, and the configuration efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] Figure 1 is a flowchart of the steps of a control method for a photovoltaic air conditioner according to an embodiment of the present invention;

[0072] Figure 2 is a structural block diagram of a control device for a photovoltaic air conditioner according to an embodiment of the present invention. DETAILED DESCRIPTION

[0073] To make the above objects, features, and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0074] Currently, the power supply mode of air conditioning equipment mainly relies on the traditional mains power system. However, with the emphasis on the development and utilization of renewable energy in China, the rich solar energy resources are becoming an important support for energy transformation. In this context, solar photovoltaic power generation technology, as a representative solution for clean energy utilization, has been widely applied and promoted across the country. Especially in the household electrical appliance field, photovoltaic power generation technology is gradually achieving deep integration with high-power electrical appliances such as air conditioners.

[0075] However, the energy conversion efficiency of solar photovoltaic power generation technology is restricted by multiple factors, mainly including performance parameters of photovoltaic panels, conversion efficiency of inverters, and variables such as solar irradiance intensity. Especially in the actual application of photovoltaic air conditioning systems, due to the differences in building orientation, installation location, and surrounding environment, the photovoltaic modules of different users may be in a backlight or frontlight state during daytime operation, which will cause dynamic mismatches between photovoltaic power supply and air conditioning load requirements. In the actual operation of photovoltaic air conditioners, when there is a problem of insufficient power supply under certain operating conditions, this will not only lead to an increase in the operating load of the air conditioning unit, but may also cause the compressor to be in a non-ideal working state for a long time, thereby accelerating equipment aging and shortening its service life.

[0076] One of the core concepts of the embodiments of the present invention is that by controlling the frequency of the compressor of the photovoltaic air conditioner to a target compressor frequency value, the problem of increased operating load of the air conditioning unit and reduced service life of the compressor caused by insufficient power supply under certain operating conditions is avoided. Moreover, by determining the photovoltaic equipment group, the frequency of the compressor of the photovoltaic air conditioner can be uniformly configured, improving the configuration efficiency.

[0077] Referring to Figure 1 , a step flowchart of a control method for a photovoltaic air conditioner according to an embodiment of the present invention is shown. The photovoltaic air conditioner includes a photovoltaic panel group and a compressor, and specifically may include the following steps:

[0078] Step 101, obtain photovoltaic voltage data of the photovoltaic panel groups of multiple said photovoltaic air conditioners.

[0079] Specifically, a photovoltaic air conditioner is a new type of energy-saving device that combines solar photovoltaic power generation technology with a traditional air conditioning system. It drives the operation of the air conditioner by directly converting solar energy into electrical energy, thus achieving the efficient utilization of renewable energy. The outdoor unit of the photovoltaic air conditioner is equipped with photovoltaic panels that can generate electricity and provide power for the entire air conditioning device. The photovoltaic panel group is the combination of multiple photovoltaic panels of the photovoltaic air conditioner. The air compressor is the core component of the air conditioner, mainly responsible for compressing and circulating the refrigerant. It can compress the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure state, promote the circulation of the refrigerant in the system, and realize the heat absorption and heat release processes. The compressor is the key to air conditioning refrigeration, and its performance directly affects the efficiency and reliability of the air conditioner.

[0080] The photovoltaic air conditioner can be equipped with hardware such as a wireless network for network communication. The photovoltaic air conditioner can transmit the output voltage of the photovoltaic panel group, the operating frequency of the compressor, and the system time of the photovoltaic air conditioner to the server. When the photovoltaic panel group is working, it will output an instantaneous voltage, and the main board of the photovoltaic air conditioner can upload the instantaneous voltage output by the photovoltaic panel group to the server side through network communication means. The server can obtain the photovoltaic voltage data of the photovoltaic panel groups of multiple photovoltaic air conditioners. The photovoltaic voltage data includes the output voltage of the photovoltaic panel group of the photovoltaic air conditioner.

[0081] Step 102: Determine at least one photovoltaic device group according to the photovoltaic voltage data and the preset grouping conditions.

[0082] Specifically, after obtaining the photovoltaic voltage data of the photovoltaic panel groups of multiple photovoltaic air conditioners, at least one photovoltaic device group is determined according to the photovoltaic voltage data and the preset grouping conditions. A photovoltaic device group includes at least one photovoltaic air conditioner.

[0083] Step 103: Determine the target photovoltaic voltage of the target photovoltaic air conditioner in the photovoltaic device group.

[0084] Specifically, after determining the photovoltaic device group, select a photovoltaic air conditioner from the photovoltaic device group as the target photovoltaic air conditioner. Any photovoltaic air conditioner can be selected as the target photovoltaic air conditioner. Of course, the method of determining the target photovoltaic air conditioner can be set according to actual needs in practical applications, and the embodiments of the present invention do not limit this. After determining the target photovoltaic air conditioner in the photovoltaic device group, obtain the instantaneous voltage output by the photovoltaic panel group of the target photovoltaic air conditioner. The target photovoltaic voltage can be the instantaneous voltage output by the photovoltaic panel group of the target photovoltaic air conditioner.

[0085] Step 104: Determine the target compressor frequency value of the target photovoltaic air conditioner according to the target photovoltaic voltage.

[0086] Specifically, according to the instantaneous voltage output by the photovoltaic panel group of the target photovoltaic air conditioner, the target compressor frequency value of the target photovoltaic air conditioner is determined. Since different operating states of the air conditioner correspond to different operating frequencies, this corresponding relationship is preset at the time of factory for the photovoltaic air conditioner. For example, the operating states include refrigeration, heating, dehumidification and other states. Among them, refrigeration and heating are related to temperature, such as refrigeration at 16°C, refrigeration at 17°C, heating at 27°C, heating at 28°C, etc. Here, each state has a corresponding compressor operating voltage and a corresponding frequency value. If the photovoltaic conversion efficiency decreases and the output voltage of the photovoltaic panel group is not sufficient to maintain the current operating state of the photovoltaic air conditioner, at this time, if the compressor still operates at the frequency value corresponding to the current operating state of the photovoltaic air conditioner, it will affect comfort and compressor life, etc. It is necessary to determine the target compressor frequency value of the target photovoltaic air conditioner according to the target photovoltaic voltage.

[0087] Step 105, for each of the photovoltaic device groups, control the frequencies of the compressors of the multiple photovoltaic air conditioners in the photovoltaic device group according to the target compressor frequency value.

[0088] Specifically, for each photovoltaic device group, after the target compressor frequency value of the target photovoltaic air conditioner in the photovoltaic device group is determined, the frequencies of the compressors of the multiple photovoltaic air conditioners in the photovoltaic device group corresponding to the target compressor frequency value are adjusted to the target compressor frequency value. Since factors such as light intensity and light time are affected by factors such as geographical location, longitude and latitude, there is a law of consistency in light intensity and light time in the same area. The light intensity and light time of the same photovoltaic device group are consistent. Adjusting the frequencies of the compressors of the photovoltaic air conditioners in the same photovoltaic device group uniformly is more efficient.

[0089] A control method for a photovoltaic air conditioner according to an embodiment of the present invention. The photovoltaic air conditioner includes a photovoltaic panel group and a compressor. First, obtain the photovoltaic voltage data of the photovoltaic panel groups of multiple photovoltaic air conditioners, and then determine at least one photovoltaic device group according to the photovoltaic voltage data and a preset grouping condition. Determine the target photovoltaic voltage of the target photovoltaic air conditioner in the photovoltaic device group, and then determine the target compressor frequency value of the target photovoltaic air conditioner according to the target photovoltaic voltage. For each photovoltaic device group, control the frequency of the compressors of multiple photovoltaic air conditioners in the photovoltaic device group according to the target compressor frequency value. Due to the differences in building orientation, installation location, and surrounding environment, the photovoltaic modules of different users may be in a backlight or frontlight state during daytime operation, which may cause a dynamic mismatch problem between photovoltaic power supply and air conditioner load demand. In the actual operation of the photovoltaic air conditioner, when there is a power shortage problem under certain operating conditions, by controlling the frequency of the compressor of the photovoltaic air conditioner to the target compressor frequency value, it is possible to avoid the problem of increased operating load of the air conditioner unit and reduced service life of the compressor when there is a power shortage under certain operating conditions. Moreover, by determining the photovoltaic device group, it is possible to uniformly configure the compressor frequency of the photovoltaic air conditioner and improve the configuration efficiency.

[0090] In the embodiment of the present invention, the photovoltaic voltage data includes multiple groups of photovoltaic voltages at multiple moments. Each group of photovoltaic voltages includes the photovoltaic voltages of the photovoltaic panel groups of multiple photovoltaic air conditioners at the same moment. Step 102, determining at least one photovoltaic device group according to the photovoltaic voltage data and a preset grouping condition may specifically include the following sub-steps:

[0091] Sub-step S11, determine a reference photovoltaic air conditioner among multiple photovoltaic air conditioners.

[0092] Specifically, when the photovoltaic panel group works, it will output an instantaneous voltage. The main board of the photovoltaic air conditioner can upload the instantaneous voltage output by the photovoltaic panel group, the system time corresponding to the instantaneous voltage, and the device identifier of the photovoltaic air conditioner to the server through network communication means such as wireless networks. This system time can transmit data at a preset time interval. The device identifier of the photovoltaic air conditioner is a unique identifier set on the relevant memory of the air conditioner main board when the photovoltaic air conditioner is manufactured, representing the identity of the photovoltaic air conditioner. The preset time interval can be 90 seconds or 5 minutes. Of course, the embodiment of the present invention does not limit the preset time interval.

[0093] Exemplarily, the number of multiple photovoltaic air conditioners is 4, the preset time interval is 90, and sampling is performed at a time interval of 90 seconds within 15 minutes to obtain 10 groups of data. Each group of data respectively includes the output voltages of the photovoltaic panel groups of 4 photovoltaic air conditioners. Each group of data has a corresponding sampling moment. The 10 groups of data include the output voltages of the photovoltaic panel groups of 4 photovoltaic air conditioners at 10 sampling moments.

[0094] To determine a reference photovoltaic air conditioner among multiple photovoltaic air conditioners, one photovoltaic air conditioner can be arbitrarily selected from the multiple photovoltaic air conditioners as the reference photovoltaic air conditioner. Of course, the method for determining the reference photovoltaic air conditioner among the multiple photovoltaic air conditioners can be set according to actual needs in practical applications, and the embodiments of the present invention do not limit this.

[0095] Sub-step S12: Determine the photovoltaic device group according to the multiple sets of photovoltaic voltages and the reference photovoltaic air conditioner. The absolute value of the voltage difference between each photovoltaic air conditioner in the photovoltaic device group and the reference photovoltaic air conditioner at N moments is less than a preset voltage, where N is a positive integer.

[0096] Specifically, after determining the reference photovoltaic air conditioner, determine the photovoltaic device group according to the multiple sets of photovoltaic voltages and the reference photovoltaic air conditioner. Among them, the absolute value of the voltage difference between each photovoltaic air conditioner in the photovoltaic device group and the reference photovoltaic air conditioner at N moments is less than a preset voltage, where N is a positive integer.

[0097] In the embodiments of the present invention, sub-step S12 may specifically include the following sub-steps:

[0098] Sub-step S121: Determine the absolute value of the voltage difference between each photovoltaic air conditioner and the reference photovoltaic air conditioner at the multiple moments according to the multiple sets of photovoltaic voltages.

[0099] Exemplarily, the number of multiple photovoltaic air conditioners is 4, namely device 1, device 2, device 3, and device 4. The photovoltaic voltages output by 4 photovoltaic panel groups at 1 minute and 30 seconds, 3 minutes and 0 seconds, 4 minutes and 30 seconds, 6 minutes and 0 seconds, 7 minutes and 30 seconds... 15 minutes and 0 seconds are obtained at a data sampling time interval of 90 seconds. There are a total of 10 moments, that is, 10 groups of data. If device 1 is the reference photovoltaic air conditioner, determine the absolute value of the voltage difference between the photovoltaic voltage of device 1 and the photovoltaic voltages of device 2, device 3, and device 4 at these 10 moments.

[0100] Sub-step S122: For each photovoltaic air conditioner, if at least N absolute values of voltage differences in the absolute values of voltage differences corresponding to the multiple moments are less than the preset voltage, determine that the photovoltaic air conditioner and the reference photovoltaic air conditioner belong to the same photovoltaic device group.

[0101] Continuing with the previous example, if at the moment of 1 minute and 30 seconds, the voltage output by the photovoltaic panel group of device 1 is 42V, the voltage output by the photovoltaic panel group of device 2 is 42.5V, the voltage output by the photovoltaic panel group of device 3 is 43V, and the output voltage of device 4 is 50V. The absolute value of the voltage difference between device 1 and device 2 is calculated to be 0.5V, the absolute value of the voltage difference between device 1 and device 3 is 1V, and the absolute value of the voltage difference between device 1 and device 4 is 8V. Exemplarily, the preset voltage can be 5V and N can be 8. At this time, the absolute values of the voltage differences between device 2 and device 3 and device 1 are within 5V. Then it is determined that there is 1 device 2 and device 3 whose absolute values of the voltage differences from device 1 are less than the preset voltage. If in the remaining 9 groups of data, there are at least 7 groups of data where the absolute values of the voltage differences between device 2 and device 3 and device 1 are less than the preset voltage, that is, in 10 groups of data, at least 8 devices have absolute values of voltage differences less than the preset voltage. At this time, it is determined that device 2 and device 3 and device 1 belong to the same photovoltaic device group. Devices 1, 2, and 3 form a photovoltaic device group with close geographical locations and the same lighting time, and device 4 does not belong to this photovoltaic device group.

[0102] In an embodiment of the present invention, in step 103, determining the target photovoltaic voltage of the target photovoltaic air conditioner in the photovoltaic device group may specifically include the following sub-steps:

[0103] Sub-step S21, setting the frequency of the compressor of the target photovoltaic air conditioner to a preset frequency value.

[0104] Specifically, the preset frequency value may be the frequency value corresponding to the preset photovoltaic voltage. The preset photovoltaic voltage is the minimum voltage value to ensure the operation of the photovoltaic air conditioner. When the voltage output by the photovoltaic panel group is less than the preset photovoltaic voltage, it means that the electric energy provided by the photovoltaic panel group does not meet the minimum electric energy required for the operation of the air conditioner. At this time, the air conditioner should be turned off or powered by mains electricity. The server may send the preset frequency value to the target photovoltaic air conditioner so that the target photovoltaic air conditioner adjusts the compressor frequency to the preset frequency value, or may remotely control the compressor frequency of the target photovoltaic air conditioner to the preset frequency value. The embodiment of the present invention does not limit the method of setting the frequency of the compressor of the target photovoltaic air conditioner to the preset frequency value.

[0105] Sub-step S22, after setting the frequency of the compressor of the target photovoltaic air conditioner to the preset frequency value, determining the first temperature change rate corresponding to the target photovoltaic air conditioner.

[0106] Specifically, after setting the frequency of the compressor of the target photovoltaic air conditioner to the preset frequency value, the first temperature change rate corresponding to the target photovoltaic air conditioner is determined. The temperature change rate is determined according to the indoor temperature corresponding to the target photovoltaic air conditioner after setting the frequency of the compressor of the target photovoltaic air conditioner to the preset frequency value.

[0107] Sub-step S23: Determine a candidate frequency value according to the preset frequency value.

[0108] Specifically, after determining the first temperature change rate corresponding to the target photovoltaic air conditioner, determine a candidate frequency value according to the preset frequency value.

[0109] Sub-step S24: Set the frequency of the compressor of the target photovoltaic air conditioner to the candidate frequency value.

[0110] Specifically, after determining the candidate frequency value according to the preset frequency value, the server may send the candidate frequency value to the target photovoltaic air conditioner so that the target photovoltaic air conditioner adjusts the compressor frequency to the candidate frequency value.

[0111] Sub-step S25: After setting the frequency of the compressor of the target photovoltaic air conditioner to the candidate frequency value, determine the second temperature change rate corresponding to the target photovoltaic air conditioner.

[0112] Specifically, after setting the frequency of the compressor of the target photovoltaic air conditioner to the candidate frequency value, determine the second temperature change rate corresponding to the target photovoltaic air conditioner. The second temperature change rate is determined according to the indoor temperature corresponding to the target photovoltaic air conditioner after setting the frequency of the compressor of the target photovoltaic air conditioner to the candidate frequency value.

[0113] Sub-step S26: If the first temperature change rate is greater than the second temperature change rate, determine the candidate frequency value as the target compressor frequency of the target photovoltaic air conditioner.

[0114] Specifically, compare the first temperature change rate and the second temperature change rate. If the first temperature change rate is greater than the second temperature change rate, determine the candidate frequency value as the target compressor frequency of the photovoltaic air conditioner.

[0115] Sub-step S27: If the first temperature change rate is less than or equal to the second temperature change rate, return to the step of determining the candidate frequency value according to the preset frequency value.

[0116] Specifically, if the first temperature change rate is less than or equal to the second temperature change rate, return to the step of determining the candidate frequency value according to the preset frequency value.

[0117] In the embodiment of the present invention, sub-step S23: Determine a candidate frequency value according to the preset frequency value, which may specifically include the following sub-steps:

[0118] Sub-step S231: Use the sum of the preset frequency value and the preset variable as the candidate frequency value.

[0119] Specifically, after setting the frequency of the compressor of the target photovoltaic air conditioner to the preset frequency value, the sum of the preset frequency value and the preset variable may be used as the candidate frequency value.

[0120] Alternatively, in sub-step S232, the difference between the preset frequency value and the preset variable is used as the candidate frequency value.

[0121] Specifically, when the first temperature change rate is less than or equal to the second temperature change rate and the step of determining the candidate frequency value according to the preset frequency value is returned, the difference between the preset frequency value and the preset variable can be used as the candidate frequency value, and the temperature change rates are compared again.

[0122] In an embodiment of the present invention, in sub-step S22, after setting the frequency of the compressor of the target photovoltaic air conditioner to the preset frequency value, determining the first temperature change rate corresponding to the target photovoltaic air conditioner may specifically include the following sub-steps:

[0123] Sub-step S221, obtaining the first indoor temperature corresponding to the target photovoltaic air conditioner and the second indoor temperature at a preset time interval.

[0124] Specifically, after setting the frequency of the compressor of the target photovoltaic air conditioner to the preset frequency value, obtain the first indoor temperature corresponding to the target photovoltaic air conditioner and the second indoor temperature at a preset time interval.

[0125] Sub-step S222, determining the first temperature change rate according to the first indoor temperature and the second indoor temperature.

[0126] Specifically, the first temperature change rate can be determined according to the following formula:

[0127]

[0128] where r1 is the first temperature change rate, T1 is the first indoor temperature, T2 is the second indoor temperature, and t is the preset time interval for obtaining the first indoor temperature and the second indoor temperature.

[0129] In an embodiment of the present invention, after setting the frequency of the compressor of the target photovoltaic air conditioner to the candidate frequency value, determining the second temperature change rate corresponding to the target photovoltaic air conditioner may specifically include the following sub-steps:

[0130] Obtain the third indoor temperature corresponding to the target photovoltaic air conditioner and the fourth indoor temperature at a preset time interval; determine the second temperature change rate according to the third indoor temperature and the fourth indoor temperature.

[0131] In an embodiment of the present invention, in step 104, the step of determining the target compressor frequency value of the target photovoltaic air conditioner according to the target photovoltaic voltage may specifically include the following sub-steps:

[0132] Sub-step S31: Determine whether the target photovoltaic voltage is greater than or equal to the preset photovoltaic voltage and less than the preset operating voltage.

[0133] Specifically, when the photovoltaic air conditioner leaves the factory, the operating state of the air conditioner, the working voltage of the compressor, and the frequency value are pre-set in the memory of the air conditioner main board. Different operating states correspond to different working voltages and frequency values of the compressor. The matching relationship between the working voltage and frequency value of the compressor is based on the premise that the electric energy provided by the photovoltaic power generation end or the commercial power can meet the operation of the air conditioner. If the photovoltaic conversion efficiency decreases, it may lead to insufficient electric energy and reduce the stability of the system operation. Coupled with the fact that the frequency value is not adjusted in time, it will affect comfort and the life of the compressor, etc. The preset operating voltage is the minimum working voltage of the compressor pre-set when the photovoltaic air conditioner leaves the factory, and the preset photovoltaic voltage is the minimum voltage value to ensure the operation of the photovoltaic air conditioner.

[0134] After determining the target photovoltaic voltage of the target photovoltaic air conditioner in the photovoltaic equipment group, first determine whether the target photovoltaic voltage is greater than or equal to the preset photovoltaic voltage and less than the preset operating voltage.

[0135] Sub-step S32: If the target photovoltaic voltage is greater than the preset photovoltaic voltage and less than the preset operating voltage, determine the target compressor frequency value of the target photovoltaic air conditioner.

[0136] Specifically, if the target photovoltaic voltage is greater than or equal to the preset photovoltaic voltage and less than the preset operating voltage, that is to say, at this time, the photovoltaic conversion efficiency decreases, and the electric energy output by the photovoltaic panel group of the target photovoltaic air conditioner is insufficient to maintain the operating state of the air conditioner. At this time, it is necessary to determine the target compressor frequency value of the target photovoltaic air conditioner and adjust the compressor frequency of the target photovoltaic air conditioner to the target compressor frequency value to avoid the frequency value not being adjusted in time, thereby affecting comfort and the life of the compressor, etc.

[0137] If the target photovoltaic voltage is greater than the preset operating voltage, there is no need to determine the target compressor frequency value of the target photovoltaic air conditioner, and it can operate according to the matching relationship between the working voltage and compressor frequency value preset when the photovoltaic air conditioner leaves the factory.

[0138] In the embodiment of the present invention, in step 105, for each of the photovoltaic equipment groups, according to the target compressor frequency value, controlling the frequencies of the compressors of multiple photovoltaic air conditioners in the photovoltaic equipment group may specifically include the following sub-steps:

[0139] Send the target compressor frequency value to the photovoltaic air conditioners in the photovoltaic equipment group other than the target photovoltaic air conditioner, so that the photovoltaic air conditioners other than the target photovoltaic air conditioner adjust the frequencies of their compressors according to the target compressor frequency value.

[0140] Specifically, after adjusting the frequency of the compressor of the target photovoltaic air conditioner to a candidate frequency value and determining that the candidate frequency value is the target compressor frequency of the target photovoltaic air conditioner, the target compressor frequency is sent to the photovoltaic air conditioners in the photovoltaic device group where the target photovoltaic air conditioner is located, so that the photovoltaic air conditioners in the photovoltaic device group adjust the frequency of the compressor to the target compressor frequency value. In this way, the unified configuration of different photovoltaic air conditioners in the same area can be ensured, and the applicability of the regional photovoltaic air conditioners can be improved.

[0141] In the embodiment of the present invention, the distributed photovoltaic air conditioner group senses the photovoltaic power generation situation and registers the photovoltaic air conditioners with the same light intensity and light time to form a photovoltaic device group, and dynamically configures different air conditioner operating states for the photovoltaic power generation situations of the photovoltaic air conditioners with different light energies. According to the sunshine intensity and radiation time, the driving voltage or frequency value of the compressor is dynamically adjusted, so that the compressor works dynamically according to the photovoltaic power generation situation, increasing the stability and effectiveness of the unit operation. For the same photovoltaic device group, the driving voltage or frequency parameters of the compressor can be uniformly configured to improve the applicability of the overall photovoltaic tribe group.

[0142] It should be noted that for the method embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the embodiments of the present invention are not limited by the described action sequences, because according to the embodiments of the present invention, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily essential for the embodiments of the present invention.

[0143] Refer to Figure 2 , which shows a structural block diagram of a control device for a photovoltaic air conditioner according to an embodiment of the present invention. The photovoltaic air conditioner includes a photovoltaic panel group and a compressor, and specifically may include the following modules:

[0144] The photovoltaic voltage data acquisition module 201 is used to acquire the photovoltaic voltage data of the photovoltaic panel groups of multiple said photovoltaic air conditioners.

[0145] The photovoltaic device group determination module 202 is used to determine at least one photovoltaic device group according to the photovoltaic voltage data and preset grouping conditions.

[0146] The target photovoltaic voltage determination module 203 is used to determine the target photovoltaic voltage of the target photovoltaic air conditioner in the photovoltaic device group.

[0147] The target compressor frequency value determination module 204 is used to determine the target compressor frequency value of the target photovoltaic air conditioner according to the target photovoltaic voltage.

[0148] A frequency control module 205 is configured to control the frequencies of the compressors of multiple photovoltaic air conditioners in each of the photovoltaic device groups according to the target compressor frequency values.

[0149] A control device for a photovoltaic air conditioner according to an embodiment of the present invention. The photovoltaic air conditioner includes a photovoltaic panel group and a compressor. First, photovoltaic voltage data of the photovoltaic panel groups of multiple photovoltaic air conditioners is obtained. Then, according to the photovoltaic voltage data and a preset grouping condition, at least one photovoltaic device group is determined. The target photovoltaic voltage of the target photovoltaic air conditioner in the photovoltaic device group is determined. Then, according to the target photovoltaic voltage, the target compressor frequency value of the target photovoltaic air conditioner is determined. For each photovoltaic device group, the frequencies of the compressors of multiple photovoltaic air conditioners in the photovoltaic device group are controlled according to the target compressor frequency value. Due to the differences in building orientation, installation location, and surrounding environment, the photovoltaic modules of different users may be in a backlight or sunlight-facing state during the daytime operation, which may cause a dynamic mismatch problem between the photovoltaic power supply and the air conditioner load demand. In the actual operation of the photovoltaic air conditioner, when there is a problem of insufficient power supply under certain operating conditions, by controlling the frequency of the compressor of the photovoltaic air conditioner to the target compressor frequency value, the problem of increased operating load of the air conditioner unit and reduced service life of the compressor caused by insufficient power supply under certain operating conditions is avoided. Moreover, by determining the photovoltaic device group, the frequencies of the compressors of the photovoltaic air conditioners can be uniformly configured, improving the configuration efficiency.

[0150] In an embodiment of the present invention, the photovoltaic voltage data includes multiple groups of photovoltaic voltages at multiple moments. Each group of photovoltaic voltages includes the photovoltaic voltages of the photovoltaic panel groups of multiple photovoltaic air conditioners at the same moment. The photovoltaic device group determination module includes:

[0151] A reference photovoltaic air conditioner determination sub-module is configured to determine a reference photovoltaic air conditioner among multiple photovoltaic air conditioners;

[0152] A photovoltaic device group determination sub-module is configured to determine the photovoltaic device group according to the multiple groups of photovoltaic voltages and the reference photovoltaic air conditioner. The absolute value of the voltage difference between each photovoltaic air conditioner in the photovoltaic device group and the reference photovoltaic air conditioner at N moments is less than a preset voltage, where N is a positive integer.

[0153] In an embodiment of the present invention, the photovoltaic device group determination sub-module includes:

[0154] An absolute value of voltage difference determination unit is configured to determine the absolute value of the voltage difference between each photovoltaic air conditioner and the reference photovoltaic air conditioner at the multiple moments according to the multiple groups of photovoltaic voltages;

[0155] A photovoltaic device group determination unit, for each photovoltaic air conditioner, if among the absolute values of the voltage differences corresponding to the multiple moments, at least N absolute values of voltage differences are less than the preset voltage, it is determined that the photovoltaic air conditioner and the reference photovoltaic air conditioner belong to the same photovoltaic device group.

[0156] In an embodiment of the present invention, the target compressor frequency value determination module includes:

[0157] A preset frequency value setting sub-module, for setting the frequency of the compressor of the target photovoltaic air conditioner to a preset frequency value;

[0158] A first temperature change rate determination sub-module, for determining the first temperature change rate corresponding to the target photovoltaic air conditioner after setting the frequency of the compressor of the target photovoltaic air conditioner to the preset frequency value;

[0159] A candidate frequency value determination sub-module, for determining candidate frequency values according to the preset frequency value;

[0160] A candidate frequency value setting sub-module, for setting the frequency of the compressor of the target photovoltaic air conditioner to the candidate frequency value;

[0161] A second temperature change rate determination sub-module, for determining the second temperature change rate corresponding to the target photovoltaic air conditioner after setting the frequency of the compressor of the target photovoltaic air conditioner to the candidate frequency value;

[0162] A target compressor frequency determination sub-module, for if the first temperature change rate is greater than the second temperature change rate, determining the candidate frequency value as the target compressor frequency of the photovoltaic air conditioner;

[0163] A candidate frequency value re-determination sub-module, for if the first temperature change rate is less than or equal to the second temperature change rate, returning to the step of determining candidate frequency values according to the preset frequency value.

[0164] In an embodiment of the present invention, the candidate frequency value determination sub-module includes:

[0165] A first candidate frequency value determination unit, for taking the sum of the preset frequency value and the preset variable as the candidate frequency value;

[0166] Or, a second candidate frequency value determination unit, taking the difference between the preset frequency value and the preset variable as the candidate frequency value.

[0167] In an embodiment of the present invention, the first temperature change rate determination sub-module includes:

[0168] An indoor temperature acquisition unit, for acquiring the first indoor temperature corresponding to the target photovoltaic air conditioner and the second indoor temperature at a preset time interval;

[0169] A first temperature change rate determination unit, configured to determine the first temperature change rate according to the first indoor temperature and the second indoor temperature.

[0170] In an embodiment of the present invention, the target compressor frequency value determination module includes:

[0171] A judgment sub-module, configured to judge whether the target photovoltaic voltage is greater than or equal to a preset photovoltaic voltage and less than a preset operating voltage;

[0172] A determination sub-module, configured to determine the target compressor frequency value of the target photovoltaic air conditioner if the target photovoltaic voltage is greater than the preset photovoltaic voltage and less than the preset operating voltage.

[0173] In an embodiment of the present invention, the frequency control module includes:

[0174] A target compressor frequency value sending sub-module, configured to send the target compressor frequency value to photovoltaic air conditioners other than the target photovoltaic air conditioner in the photovoltaic device group, so that the photovoltaic air conditioners other than the target photovoltaic air conditioner adjust the frequency of the compressor according to the target compressor frequency value.

[0175] For the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple. For the related parts, please refer to the partial description of the method embodiment.

[0176] An embodiment of the present invention further provides an electronic device, including:

[0177] It includes a processor, a memory, and a computer program stored on the memory and capable of running on the processor. When the computer program is executed by the processor, it implements each process of the above-mentioned control method embodiment of a photovoltaic air conditioner, and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0178] An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it implements each process of the above-mentioned control method embodiment of a photovoltaic air conditioner, and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0179] Each embodiment in this specification is described in a progressive manner. The key point of each embodiment is the difference from other embodiments. The same or similar parts among the embodiments can be referred to each other.

[0180] Those skilled in the art should understand that the embodiments of the present invention can be provided as methods, apparatuses, or computer program products. Therefore, the embodiments of the present invention can take the form of all-hardware embodiments, all-software embodiments, or embodiments combining software and hardware aspects. Moreover, the embodiments of the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories, CD-ROMs, optical memories, etc.) containing computer-usable program code.

[0181] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of methods, terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each flow and / or block in the flowchart and / or block diagram, and the combination of flows and / or blocks in the flowchart and / or block diagram, can be realized by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal devices generate a device for realizing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0182] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including an instruction device, and the instruction device realizes the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0183] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device, so that a series of operation steps are executed on the computer or other programmable terminal device to generate a computer-implemented process, and thus the instructions executed on the computer or other programmable terminal device provide steps for realizing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0184] Although the preferred embodiments of the embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concepts. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present invention.

[0185] Finally, it should also be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or terminal device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or terminal device comprising said element.

[0186] The above has introduced in detail a control method, device, electronic device and storage medium of a photovoltaic air conditioner provided by the present invention. Specific examples are used in this text to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A control method for a photovoltaic air conditioner, characterized in that: The photovoltaic air conditioner comprises a photovoltaic panel group and a compressor, and the method comprises: Acquiring photovoltaic voltage data of a plurality of photovoltaic panel groups of the photovoltaic air conditioners; Determining at least one photovoltaic device group according to the photovoltaic voltage data and a preset grouping condition; Determining a target photovoltaic voltage of a target photovoltaic air conditioner in the photovoltaic device group; Determining a target compressor frequency value of the target photovoltaic air conditioner according to the target photovoltaic voltage; For each of the photovoltaic device groups, the frequencies of the compressors of the plurality of photovoltaic air conditioners in the photovoltaic device group are controlled according to the target compressor frequency value.

2. The control method of photovoltaic air conditioner according to claim 1, characterized in that: The photovoltaic voltage data includes multiple groups of photovoltaic voltages at multiple moments, each group of photovoltaic voltages includes photovoltaic voltages of multiple photovoltaic panel groups of the photovoltaic air conditioners at the same moment, and determining at least one photovoltaic device group according to the photovoltaic voltage data and preset grouping conditions includes: determining a benchmark photovoltaic air conditioner among the plurality of photovoltaic air conditioners; The photovoltaic equipment group is determined according to the multiple groups of photovoltaic voltages and the reference photovoltaic air conditioner, wherein the absolute value of the voltage difference between each photovoltaic air conditioner in the photovoltaic equipment group and the reference photovoltaic air conditioner at N moments is less than a preset voltage, where N is a positive integer.

3. The control method of photovoltaic air conditioner according to claim 2, characterized in that: The step of determining the photovoltaic device group according to the plurality of photovoltaic voltage groups and the reference photovoltaic air conditioner comprises: Determining, according to the multiple groups of photovoltaic voltages, the absolute value of the voltage difference between each photovoltaic air conditioner and the reference photovoltaic air conditioner at the multiple moments; For each photovoltaic air conditioner, if among the voltage difference absolute values ​​corresponding to the multiple moments, at least N voltage difference absolute values ​​are smaller than the preset voltage, it is determined that the photovoltaic air conditioner and the reference photovoltaic air conditioner are in the same photovoltaic device group.

4. The control method of photovoltaic air conditioner according to claim 1, characterized in that: The step of determining a target compressor frequency value of the target photovoltaic air conditioner comprises: Setting the frequency of the compressor of the target photovoltaic air conditioner to a preset frequency value; After setting the frequency of the compressor of the target photovoltaic air conditioner to a preset frequency value, determining a first temperature change rate corresponding to the target photovoltaic air conditioner; Determine a candidate frequency value according to the preset frequency value; Setting the frequency of the compressor of the target photovoltaic air conditioner to the candidate frequency value; After setting the frequency of the compressor of the target photovoltaic air conditioner to the candidate frequency value, determining a second temperature change rate corresponding to the target photovoltaic air conditioner; If the first temperature change rate is greater than the second temperature change rate, determining the candidate frequency value as the target compressor frequency of the target photovoltaic air conditioner; If the first temperature change rate is less than or equal to the second temperature change rate, the process returns to the step of determining a candidate frequency value according to the preset frequency value.

5. The control method of photovoltaic air conditioner according to claim 4, characterized in that: The determining of the candidate frequency value according to the preset frequency value includes: Taking the sum of the preset frequency value and the preset variable as the candidate frequency value; Or, a difference between the preset frequency value and the preset variable is used as the candidate frequency value.

6. The control method of photovoltaic air conditioner according to claim 4, characterized in that: After setting the frequency of the compressor of the target photovoltaic air conditioner to a preset frequency value, determining a first temperature change rate corresponding to the target photovoltaic air conditioner includes: Acquire a first indoor temperature corresponding to the target photovoltaic air conditioner and a second indoor temperature at a preset time interval; The first temperature change rate is determined according to the first indoor temperature and the second indoor temperature.

7. The control method of photovoltaic air conditioner according to claim 1, characterized in that: The step of determining a target compressor frequency value of the target photovoltaic air conditioner according to the target photovoltaic voltage includes: Determining whether the target photovoltaic voltage is greater than or equal to a preset photovoltaic voltage and less than a preset operating voltage; If the target photovoltaic voltage is greater than the preset photovoltaic voltage and less than the preset working voltage, the target compressor frequency value of the target photovoltaic air conditioner is determined.

8. The control method of photovoltaic air conditioner according to claim 3, characterized in that: The step of controlling the frequencies of compressors of a plurality of photovoltaic air conditioners in the photovoltaic device group according to the target compressor frequency value comprises: The target compressor frequency value is sent to photovoltaic air conditioners other than the target photovoltaic air conditioner in the photovoltaic device group, so that the photovoltaic air conditioners other than the target photovoltaic air conditioner adjust the frequency of the compressor according to the target compressor frequency value.

9. A control device for a photovoltaic air conditioner, characterized in that: The photovoltaic air conditioner comprises a photovoltaic panel group and a compressor, and the device comprises: A photovoltaic voltage data acquisition module, used to acquire photovoltaic voltage data of a plurality of photovoltaic panel groups of the photovoltaic air conditioners; A photovoltaic device group determination module, configured to determine at least one photovoltaic device group according to the photovoltaic voltage data and a preset grouping condition; A target photovoltaic voltage determination module, used to determine a target photovoltaic voltage of a target photovoltaic air conditioner in the photovoltaic equipment group; A target compressor frequency value determination module, used to determine a target compressor frequency value of the target photovoltaic air conditioner according to the target photovoltaic voltage; The frequency control module is used to control the frequencies of the compressors of the plurality of photovoltaic air conditioners in the photovoltaic device group according to the target compressor frequency value for each photovoltaic device group.

10. An electronic device, characterized in that: include: A processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the steps of the photovoltaic air conditioner control method according to any one of claims 1 to 8 are implemented.

11. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the photovoltaic air conditioner control method according to any one of claims 1 to 8 are implemented.

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