Photovoltaic air conditioner power supply control method and device, photovoltaic air conditioner and storage medium

Abstract

The application relates to a photovoltaic air conditioner power supply control method and device, a photovoltaic air conditioner and a storage medium. The method comprises the following steps: acquiring the current electrical performance parameter of a main photovoltaic panel, and determining a first power device and a second power device in the photovoltaic air conditioner, wherein the power consumption of the first power device is greater than that of the second power device; in the case that the electrical performance parameter meets the power supply control condition, the following power supply control operation is performed: the main photovoltaic panel is controlled to supply power to the first power device, and the auxiliary photovoltaic panel is controlled to supply power to the second power device. In this way, the main photovoltaic panel and the auxiliary photovoltaic panel can supply power together, the key functions of the photovoltaic air conditioner can be ensured not to be interrupted, and the problems of the existing photovoltaic air conditioner system, such as the decline of the operation performance, the low photovoltaic energy utilization rate and the strong dependence on the external power grid due to the unbalanced energy distribution, are fundamentally solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of smart home, and in particular to a photovoltaic air conditioner power supply control method and device, a photovoltaic air conditioner and a storage medium. BACKGROUND

[0002] Under the background of global energy clean and low-carbon transformation, photovoltaic air conditioners have been widely used in commercial complexes, factory buildings, residential areas and other scenarios due to their advantages of "self-generation and self-use, green and energy-saving", and are an important choice for building energy upgrading. The energy supply logic is that solar energy is converted into electric energy through roof photovoltaic panels and peripheral photovoltaic panels, and when the light is sufficient, the core components such as compressors and small loads such as electric control and communication can be powered at the same time, realizing the matching of photovoltaic energy and system demand and reducing the dependence on external power grids.

[0003] However, the output of photovoltaic energy is highly dependent on light, and overcast, weak light in the morning and evening or shading will cause a sharp drop in power generation, and it is difficult for electric energy to cover the power consumption demand of photovoltaic air conditioning systems. At this time, photovoltaic air conditioners are in an energy distribution dilemma: prioritizing power supply for core components will cause data interruption and parameter out of control for small loads due to insufficient power, affecting intelligent control; reserving electric energy for small loads will cause insufficient power for core components, resulting in a sharp drop in refrigeration / heating efficiency or even shutdown, and energy distribution imbalance has become a key bottleneck restricting the stable operation of photovoltaic air conditioners.

[0004] This imbalance not only affects the operation performance of photovoltaic air conditioners, but also reduces the utilization rate of photovoltaic energy and increases the dependence on external power grids. On the one hand, electric energy cannot be fully utilized due to the imbalance in energy distribution, causing waste, which is contrary to the original intention of "efficient and clean energy"; on the other hand, air conditioners need to rely more on external power grids for power supply, which not only increases the pressure on power grids, but also weakens their advantage of reducing dependence on power grids, which is not conducive to the development of building energy systems in a self-sufficient and low-carbon manner. SUMMARY

[0005] In order to solve the above technical problem that the imbalance not only affects the operation performance of photovoltaic air conditioners, but also reduces the utilization rate of photovoltaic energy and increases the dependence on external power grids, the present application provides a photovoltaic air conditioner power supply control method and device, a photovoltaic air conditioner and a storage medium. The specific technical solutions are as follows:

[0006] In a first aspect, the present application provides a photovoltaic air conditioner power supply control method, which is applied to an intelligent power management module, and the method comprises:

[0007] obtaining the current electric performance parameter of the main photovoltaic panel and determining the first power device and the second power device in the photovoltaic air conditioner;

[0008] wherein the power consumption of the first power device is greater than the power consumption of the second power device;

[0009] In the case that the electrical performance parameter meets the power supply control condition, the following power supply control operation is performed:

[0010] The main photovoltaic panel is controlled to supply power to the first power device, and the auxiliary photovoltaic panel is controlled to supply power to the second power device.

[0011] In an optional embodiment, the auxiliary photovoltaic panel is part of a photovoltaic air conditioner shell, or the auxiliary photovoltaic panel is nested in a photovoltaic air conditioner shell.

[0012] In an optional embodiment, the determination of the first power device and the second power device in the photovoltaic air conditioner includes:

[0013] Any power device in the photovoltaic air conditioner is obtained, and the power consumption of the power device is determined;

[0014] In the case that the ratio between the power consumption of the power device and the total power consumption of the photovoltaic air conditioner is greater than a preset first value, the power device is determined as the first power device;

[0015] In the case that the ratio between the power consumption of the power device and the total power consumption of the photovoltaic air conditioner is less than a preset second value, the power device is determined as the second power device;

[0016] In the case that the ratio between the power consumption of the power device and the total power consumption of the photovoltaic air conditioner is less than or equal to the preset first value and greater than or equal to the preset second value, the power device is determined as the first power device or the second power device according to the functional positioning or control mode of the power device;

[0017] Wherein, the preset first value is greater than the preset second value.

[0018] In an optional embodiment, the determination of the first power device and the second power device in the photovoltaic air conditioner includes:

[0019] Any power device in the photovoltaic air conditioner is obtained, and the functional positioning of the power device is determined;

[0020] In the case that the functional positioning indicates that the power device is responsible for a predetermined function of the photovoltaic air conditioner, the power device is determined as the first power device;

[0021] In the case that the functional positioning indicates that the power device is not responsible for a predetermined function of the photovoltaic air conditioner, the power device is determined as the second power device.

[0022] In an optional embodiment, the determination of the first power device and the second power device in the photovoltaic air conditioner includes:

[0023] Acquiring any power device in the photovoltaic air conditioner, and determining a control mode of the power device;

[0024] In a case where the control mode is a preset control mode, determining the power device as a first power device;

[0025] In a case where the control mode is not the preset control mode, determining the power device as a second power device.

[0026] In an optional implementation, the electrical performance parameter includes voltage and / or current, and the electrical performance parameter satisfies a power supply control condition, including:

[0027] The voltage is less than a preset voltage threshold and lasts for a preset first duration;

[0028] and / or,

[0029] The current is less than a preset current threshold and lasts for a preset second duration.

[0030] In an optional implementation, the control auxiliary photovoltaic panel supplies power for the second power device, including:

[0031] Determining a current power consumption of the second power device, and determining a current light intensity of an environment in which the photovoltaic air conditioner is located;

[0032] According to the current power consumption of the second power device and the current light intensity, determining an unfolding degree of the auxiliary photovoltaic panel;

[0033] Controlling the auxiliary photovoltaic panel to unfold according to the unfolding degree to supply power for the second power device.

[0034] In an optional implementation, the determining of the unfolding degree of the auxiliary photovoltaic panel according to the current power consumption of the second power device and the current light intensity includes:

[0035] According to the current power consumption of the second power device and a preset redundancy threshold, determining a target power consumption;

[0036] Acquiring a power generation efficiency of the auxiliary photovoltaic panel, and according to the target power consumption, the power generation efficiency, and the current light intensity, determining the unfolding degree of the auxiliary photovoltaic panel.

[0037] In an optional implementation, the determining of the unfolding degree of the auxiliary photovoltaic panel according to the target power consumption, the power generation efficiency, and the current light intensity includes:

[0038] Inputting the target power consumption, the power generation efficiency, and the current light intensity into an unfolding area calculation formula to obtain an unfolding area of the auxiliary photovoltaic panel;

[0039] obtaining a total deployment area of the auxiliary photovoltaic panel, and determining a deployment degree of the auxiliary photovoltaic panel according to the deployment area and the total deployment area;

[0040] The deployment area calculation formula comprises:

[0041] S_pv_need=(P_pv_target×1000) / (E_light×η);

[0042] The S_pv_need is the deployment area, the P_pv_target is the target power consumption, the E_light is the current light intensity, and the η is the power generation efficiency.

[0043] In an optional implementation, before the determining the deployment degree of the auxiliary photovoltaic panel according to the current power consumption of the second power device and the current light intensity, the method further comprises:

[0044] determining whether the current light intensity is lower than a preset light intensity threshold, and performing the following operation in the case that the current light intensity is lower than the preset light intensity threshold:

[0045] controlling the auxiliary photovoltaic panel to be deployed according to a maximum deployment degree to supply power to the second power device;

[0046] In the case that the current light intensity is not lower than the preset light intensity threshold, the method further comprises the determining the deployment degree of the auxiliary photovoltaic panel according to the current power consumption of the second power device and the current light intensity.

[0047] In an optional implementation, before the controlling the auxiliary photovoltaic panel to be deployed according to the deployment degree to supply power to the second power device, the method further comprises:

[0048] determining whether the deployment degree is less than a preset first deployment degree threshold, and controlling the battery to supply power to the second power device in the case that the deployment degree is less than the preset first deployment degree threshold;

[0049] determining whether the deployment degree is greater than a preset second deployment degree threshold, and controlling the auxiliary photovoltaic panel to be deployed according to a maximum deployment degree to supply power to the second power device in the case that the deployment degree is greater than the preset second deployment degree threshold;

[0050] In the case that the deployment degree is not less than the preset first deployment degree threshold and not greater than the preset second deployment degree threshold, the method further comprises the determining the deployment degree of the auxiliary photovoltaic panel according to the current power consumption of the second power device and the current light intensity.

[0051] The preset first unfolding degree threshold is less than the preset second unfolding degree threshold.

[0052] In an optional implementation, the method further includes:

[0053] detecting whether the photovoltaic air conditioner is in a standby mode, and controlling the auxiliary photovoltaic panel to supply power to the photovoltaic air conditioner when the photovoltaic air conditioner is in the standby mode.

[0054] In a second aspect, the application provides a photovoltaic air conditioner power supply control device, applied to an intelligent power management module, the device comprising:

[0055] a parameter acquisition module configured to acquire an electrical performance parameter of the main photovoltaic panel;

[0056] a device determination module configured to determine a first power device and a second power device in the photovoltaic air conditioner;

[0057] The first power device has a power consumption greater than that of the second power device.

[0058] an operation execution module configured to execute the following power supply control operation when the electrical performance parameter meets a power supply control condition:

[0059] a power supply control module configured to control the main photovoltaic panel to supply power to the first power device and control the auxiliary photovoltaic panel to supply power to the second power device.

[0060] In a third aspect, a photovoltaic air conditioner is also provided, comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete communication with each other through the communication bus.

[0061] The memory is configured to store a computer program.

[0062] The processor is configured to execute the program stored on the memory to implement the photovoltaic air conditioner power supply control method of any of the first aspect.

[0063] In a fourth aspect, a storage medium is also provided, which stores instructions, and when the instructions are run on a computer, the computer executes the photovoltaic air conditioner power supply control method of any of the first aspect.

[0064] In a fifth aspect, a computer program product comprising instructions is also provided, and when the instructions are run on a computer, the computer executes the photovoltaic air conditioner power supply control method of any of the first aspect.

[0065] Compared with the prior art, the above technical solution provided by the embodiment of the present application has the following advantages: the stable operation of the photovoltaic air conditioner system under different illumination conditions can be ensured, and the utilization rate of photovoltaic energy can be improved. The photovoltaic air conditioner power supply control method provided by the embodiment of the present application is applied to an intelligent power management module, current electrical performance parameters of a main photovoltaic panel are acquired, and a first power device and a second power device in the photovoltaic air conditioner are determined, wherein the power consumption of the first power device is greater than the power consumption of the second power device. In the case that the electrical performance parameters meet the power supply control condition, the following power supply control operation is performed: the main photovoltaic panel is controlled to supply power to the first power device, and the auxiliary photovoltaic panel is controlled to supply power to the second power device. In this way, the main photovoltaic panel and the auxiliary photovoltaic panel can supply power together, the key functions of the photovoltaic air conditioner can be ensured not to be interrupted, and the problems of the existing photovoltaic air conditioner system, such as the decline of the operation performance, the low utilization rate of photovoltaic energy, and the strong dependence on external power grids, caused by the unbalanced distribution of energy, are fundamentally solved. BRIEF DESCRIPTION OF DRAWINGS

[0066] The drawings incorporated into the specification and forming a part of the specification, show embodiments consistent with the present application, and together with the specification serve to explain the principles of the present application.

[0067] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0068] One or more embodiments are exemplarily illustrated by pictures in the drawings corresponding thereto, and these exemplary illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified. The drawings in the drawings do not constitute a proportional limitation.

[0069] Figure 1 A structural schematic diagram of a photovoltaic air conditioner power supply control system provided by the embodiment of the present application;

[0070] Figure 2 An implementation flowchart of a photovoltaic air conditioner power supply control method provided by the embodiment of the present application;

[0071] Figure 3 An implementation flowchart of another photovoltaic air conditioner power supply control method provided by the embodiment of the present application;

[0072] Figure 4 An implementation flowchart of a method for determining the unfolding degree of an auxiliary photovoltaic panel provided by the embodiment of the present application;

[0073] Figure 5Another auxiliary photovoltaic panel unfolding degree determination method provided by the embodiment of the present application is provided.

[0074] Figure 6 Another photovoltaic air conditioner power supply control method provided by the embodiment of the present application is provided.

[0075] Figure 7 Another photovoltaic air conditioner power supply control method provided by the embodiment of the present application is provided.

[0076] Figure 8 A structure diagram of a photovoltaic air conditioner power supply control device provided by the embodiment of the present application is provided.

[0077] Figure 9 A structure diagram of a photovoltaic air conditioner provided by the embodiment of the present application is provided. DETAILED DESCRIPTION

[0078] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0079] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplicity and clarity, the description of the specific examples in the following text will be described. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to the numbers and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and it does not indicate the relationship between the various embodiments and / or settings discussed.

[0080] As shown in Figure 1 A structure diagram of a photovoltaic air conditioner power supply control system provided by the embodiment of the present application is provided, which includes a photovoltaic air conditioner, a main photovoltaic panel, an auxiliary photovoltaic panel, and a commercial power grid.

[0081] Among them, the above-mentioned photovoltaic air conditioner is the core load device of the photovoltaic air conditioner power supply control system, and a variety of power devices are integrated in the air conditioner electrical box, including but not limited to large power devices such as compressors in the air conditioner electrical box and small power but key functional components such as electronic control modules and communication modules. Based on the photovoltaic air conditioner power supply control system, the rational distribution and efficient utilization of photovoltaic air conditioner electric energy can be realized to ensure that the photovoltaic air conditioner can stably operate under different light conditions.

[0082] The main photovoltaic panel is the main power source of the photovoltaic air conditioner power supply control system, can be laid on the roof or around the photovoltaic air conditioner unit, and is used for providing power for the photovoltaic air conditioner. And under certain conditions (such as the light intensity is lower than the set threshold), only the high-power devices (such as the compressor) in the air conditioner electrical box of the photovoltaic air conditioner are provided with power.

[0083] The auxiliary photovoltaic panel is a rotatable folding small photovoltaic panel, which is an auxiliary power source of the photovoltaic air conditioner power supply control system, can be integrated on the shell of the photovoltaic air conditioner, and plays a structural support and shielding role. It can also be embedded in the window provided on the outer shell (such as the left side, the right side or the front) of the air conditioner body, and can be unfolded to increase the light receiving area and improve the power generation efficiency when needed. When the light condition is insufficient or the power generation capacity of the main photovoltaic panel decreases, the auxiliary photovoltaic panel can quickly unfold and provide independent power for the small-power key devices (such as the electronic control module and the communication module) in the air conditioner electrical box, to ensure the stable operation of these key components and avoid data loss or loss of control of the photovoltaic air conditioner power supply control system caused by power interruption.

[0084] In addition, the photovoltaic air conditioner power supply control system can also include a power grid, which exists as a backup or supplemental power source in the photovoltaic air conditioner power supply control system. When the photovoltaic energy (main photovoltaic panel and / or foldable small photovoltaic panel) cannot meet the demand of the photovoltaic air conditioner power supply control system (such as continuous rainy days or night), it can automatically switch to the power grid power supply mode to ensure the continuous operation of the photovoltaic air conditioner. This method not only improves the flexibility of the photovoltaic air conditioner power supply control system, but also further reduces the dependence of the photovoltaic air conditioner power supply control system on the external power grid.

[0085] By using the main photovoltaic panel to supply power to the high-power devices in the photovoltaic air conditioner and the auxiliary photovoltaic panel to supply power to the small-power devices in the photovoltaic air conditioner, the main and auxiliary photovoltaic panels can supply power together, ensuring the key functions of the photovoltaic air conditioner do not interrupt, and fundamentally solving the problems of existing photovoltaic air conditioner systems, such as performance degradation, low utilization of photovoltaic energy, and strong dependence on external power grid due to unbalanced energy distribution.

[0086] As shown in Figure 2 The method provided by the embodiment of the application is applied to an intelligent power management module, and can specifically include the following steps:

[0087] S201, acquiring the current electrical performance parameters of the main photovoltaic panel, and determining the first power device and the second power device in the photovoltaic air conditioner. The power consumption of the first power device is greater than that of the second power device.

[0088] In the embodiment of the present application, the current electrical performance parameters of the main photovoltaic panel are obtained by the intelligent power management module. The intelligent power management module can be a power supply control unit, which has functions such as data acquisition, analysis and judgment, and instruction output, and can accurately control the power supply of the photovoltaic air conditioner according to the obtained information. The intelligent power management module can include a processor, a voltage / current sensor and a switching circuit, which are used to monitor the state of the photovoltaic system in real time and execute the power supply control strategy. The main photovoltaic panel can be various types and specifications of photovoltaic arrays (solar panels) laid on the roof or around the photovoltaic air conditioner unit, which are used to convert solar energy into electrical energy and power the photovoltaic air conditioner. The electrical performance parameters can be understood as performance parameters for measuring the working state and power generation capacity of the main photovoltaic panel, which are not limited in the embodiment of the present application.

[0089] The first power device and the second power device in the photovoltaic air conditioner are determined by the intelligent power management module, wherein the power consumption of the first power device is greater than that of the second power device. The photovoltaic air conditioner can be an air conditioning system that generates electricity using solar energy, which converts light energy into electrical energy to power the air conditioner itself. The first power device can be a large power component such as a compressor, a fan motor, etc. in the photovoltaic air conditioner. Taking the compressor as an example, the compressor is the core component of the air conditioner for refrigeration and heating, which compresses and circulates air to regulate indoor temperature. This process requires a large amount of electrical energy to operate to achieve air compression and circulation, so the compressor is a large power component. The second power device can be a small power but critical component such as an electronic control module, a communication module, a display unit, etc., wherein the electronic control module is responsible for controlling the operation of various components of the photovoltaic air conditioner, the communication module is used to realize the communication between the photovoltaic air conditioner and external devices (such as mobile phone APP, smart home system, etc.), and the display unit is used to display the working state, temperature setting, etc. of the air conditioner. The electrical power of the display unit is relatively small, but it plays a crucial role in the normal operation of the air conditioner, which is not limited in the embodiment of the present application.

[0090] S202, in the case that the electrical performance parameters meet the power supply control condition, the following power supply control operation is performed: controlling the main photovoltaic panel to supply power to the first power device, and controlling the auxiliary photovoltaic panel to supply power to the second power device.

[0091] In the embodiments of the present application, the electrical performance parameters obtained through the above steps can be used to perform a power supply control operation of controlling the main photovoltaic panel to supply power to the first power device and controlling the auxiliary photovoltaic panel to supply power to the second power device when the electrical performance parameters meet the power supply control condition. The power supply control condition can be a core standard for evaluating the power generation performance of the main photovoltaic panel, and can be set as a specific parameter such as a voltage lower than a rated value by a certain percentage and a duration exceeding a set threshold. The auxiliary photovoltaic panel can be an auxiliary power generation component integrated on the air conditioner shell (such as a foldable or nested design), which serves as a structural support component and supplies power to low-power critical devices (such as an electronic control module and a communication module) when the main photovoltaic panel generates insufficient power. The deployment degree can be dynamically adjusted according to the light and power demand. The embodiments of the present application do not limit this.

[0092] Specifically, when the electrical performance parameters meet the power supply control condition, the intelligent power management module performs the following power supply control operation: controlling the main photovoltaic panel to supply power to the first power device, i.e., allowing the electrical energy generated by the main photovoltaic panel to be preferentially delivered to large-power devices such as compressors and fan motors, to ensure that they can obtain sufficient power to operate normally, thereby ensuring the refrigeration and heating effect of the air conditioner. At the same time, the auxiliary photovoltaic panel is controlled to supply power to the second power device, i.e., to provide independent electrical energy for small-power critical components such as an electronic control module, a communication module, and a display unit. In this way, even if the main photovoltaic panel fails or the power supply capacity decreases, these critical components can continue to operate normally, avoiding data loss or loss of control of the photovoltaic air conditioner power supply control system due to power interruption.

[0093] Through the above description of the technical solutions provided by the embodiments of the present application, the current electrical performance parameters of the main photovoltaic panel are obtained, and the first power device and the second power device in the photovoltaic air conditioner are determined, wherein the power consumption of the first power device is greater than that of the second power device. When the electrical performance parameters meet the power supply control condition, the following power supply control operation is performed: controlling the main photovoltaic panel to supply power to the first power device and controlling the auxiliary photovoltaic panel to supply power to the second power device.

[0094] In this way, the main and auxiliary photovoltaic panels can supply power together to ensure that the critical functions of the photovoltaic air conditioner do not interrupt, and fundamentally solve the problems of performance degradation, low photovoltaic energy utilization, and strong dependence on external power grids caused by energy distribution imbalance in existing photovoltaic air conditioner systems.

[0095] Based on this, as shown in FIG. 6, another embodiment of a photovoltaic air conditioner power supply control method provided by the present application is provided, which is applied to an intelligent power management module and can specifically include the following steps: Figure 3

[0096] S301, obtaining the current electrical performance parameters of the main photovoltaic panel.

[0097] ​In the embodiments of the present application, the current electrical performance parameter of the main photovoltaic panel is acquired. The electrical performance parameter can be understood as a performance parameter for measuring the working state and power generation capacity of the main photovoltaic panel, which is used to determine whether the main photovoltaic panel meets the power supply requirement of the core device (such as a compressor) of the photovoltaic air conditioner. The electrical performance parameter can include voltage and / or current, which is not limited in the embodiments of the present application.

[0098] Specifically, the intelligent power management module can acquire the collected data in real time from the voltage sensor and / or current sensor arranged at the output end of the main photovoltaic panel through wired or wireless mode, so as to obtain the current electrical performance parameter (voltage and / or current) of the main photovoltaic panel.

[0099] For example, the current voltage (such as 100V, 120V, etc.) of the main photovoltaic panel is acquired from the voltage sensor arranged at the output end of the main photovoltaic panel through wired mode, which is used as the electrical performance parameter.

[0100] S302, any power device in the photovoltaic air conditioner is acquired, and the power consumption of the power device is determined.

[0101] In the embodiments of the present application, any power device in the photovoltaic air conditioner is acquired. The power device can be understood as a component consuming electric energy in the photovoltaic air conditioner, including but not limited to a compressor, a fan motor, an electric control module, and a communication module. The power consumption of any power device in the photovoltaic air conditioner acquired can be determined to classify the power device. The power consumption can be understood as the rate of electric energy consumed when the power device operates (such as 1000W, 10W). The embodiments of the present application are not limited in this regard.

[0102] S303, in the case that the ratio between the power consumption of the power device and the total power consumption of the photovoltaic air conditioner is greater than a first preset value, the power device is determined as a first power device.

[0103] In the embodiments of the present application, the power device can be determined as a first power device in the case that the ratio between the power consumption of the power device and the total power consumption of the photovoltaic air conditioner is greater than a first preset value.

[0104] It should be noted that the first preset value described above can be a threshold (such as 50%, 60%) for distinguishing high-power devices, which is not limited in the embodiments of the present application. The total power consumption of the photovoltaic air conditioner described above refers to the total power consumption of all power devices in the photovoltaic air conditioner when they are running at full load (such as 2000W). The first power device described above can be a component mainly consuming electric energy in the photovoltaic air conditioner (such as a compressor, a fan motor, etc.), which is not limited in the embodiments of the present application.

[0105] For example, the preset first value is 60%, the power consumption of the power device 1 (compressor) is 2800W, the total power consumption of the photovoltaic air conditioner is 4000W, the ratio between the power consumption of the power device 1 and the total power consumption of the photovoltaic air conditioner is 2800W÷4000W=70%, which is greater than the preset first value 60%, so the compressor is the first power device.

[0106] S304, in the case that the ratio between the power consumption of the power device and the total power consumption of the photovoltaic air conditioner is less than a preset second value, determining the power device as a second power device, wherein the preset first value is greater than the preset second value, and the power consumption of the first power device is greater than the power consumption of the second power device.

[0107] In the embodiment of the present application, in the case that the ratio between the power consumption of the power device and the total power consumption of the photovoltaic air conditioner is less than a preset second value, the power device is determined as a second power device, wherein the preset first value is greater than the preset second value, and the power consumption of the first power device is greater than the power consumption of the second power device.

[0108] It should be noted that the above-mentioned preset second value can be a threshold value (such as 10%, 15%) for distinguishing small power devices, which is set in advance. The above-mentioned second power device can be a key component (such as an electronic control module, a communication module, a display unit, etc.) with small power consumption in the photovoltaic air conditioner, which is not limited in the embodiment of the present application.

[0109] For example, the preset second value is 10%, the power consumption of the power device 2 (fan) is 300W, the total power consumption of the photovoltaic air conditioner is 4000W, the ratio between the power consumption of the power device 2 and the total power consumption of the photovoltaic air conditioner is 300W÷4000W=7.5%, which is less than the preset second value 10%, so the fan is the second power device.

[0110] In addition, in the case that the ratio between the power consumption of the power device and the total power consumption of the photovoltaic air conditioner is less than or equal to the preset first value and greater than or equal to the preset second value, the power device is determined as the first power device or the second power device according to the functional positioning or control mode of the power device, and the specific implementation process can be referred to the subsequent steps.

[0111] S305, in the case that the power supply control condition is met, performing the following power supply control operation: controlling the main photovoltaic panel to supply power to the first power device.

[0112] In the embodiments of the present application, in the case that the electrical performance parameter meets the power supply control condition, the intelligent power management module will perform the power supply control operation of controlling the main photovoltaic panel to supply power for the first power device. The power supply control condition can be a core standard for evaluating the power generation performance of the main photovoltaic panel, and can be set as a specific parameter that the voltage is lower than a certain percentage of the rated value and the duration exceeds a set threshold.

[0113] Specifically, the electrical performance parameter can include voltage and / or current. The electrical performance parameter meeting the power supply control condition can be that the voltage is less than a preset voltage threshold and lasts for a preset first time length, and / or the current is less than a preset current threshold and lasts for a preset second time length. The preset voltage threshold can be a voltage value preset for evaluating the power generation performance of the main photovoltaic panel (such as a preset voltage value 200V, 10% of the rated voltage of the main photovoltaic panel). The preset first time length is a time parameter preset for avoiding false triggering caused by instantaneous voltage fluctuation (such as 1 second, 2 seconds, etc.). The preset current threshold is a current value preset for evaluating the power generation performance of the main photovoltaic panel (such as a preset current value 20A, 10% of the rated current of the main photovoltaic panel). The preset second time length is a time parameter preset for avoiding false triggering caused by instantaneous current fluctuation (such as 1 second, 2 seconds, etc.).

[0114] S306, determine the current power consumption of the second power device, and determine the current light intensity of the environment in which the photovoltaic air conditioner is located.

[0115] In the embodiments of the present application, for the determined second power device, the current power consumption corresponding to the second power device can be determined by the power sensor, and the current light intensity of the environment in which the photovoltaic air conditioner is located can be determined by the light sensor. The current light intensity refers to the real-time light energy density (such as 800W / m²) of the environment in which the photovoltaic air conditioner is currently located.

[0116] S307, according to the current power consumption of the second power device and the current light intensity, determine the deployment degree of the auxiliary photovoltaic panel.

[0117] In the embodiments of the present application, the deployment degree of the auxiliary photovoltaic panel can be determined according to the current power consumption of the second power device and the current light intensity. The auxiliary photovoltaic panel can be part of the photovoltaic air conditioner shell and play a structural support and shielding role, or the auxiliary photovoltaic panel is nested in the photovoltaic air conditioner shell.

[0118] For determining the deployment degree of the auxiliary photovoltaic panel according to the current power consumption of the second power device and the current light intensity, the method shown in FIG. 10 can be referred to. As shown in FIG. 10, an embodiment of a method for determining the deployment degree of an auxiliary photovoltaic panel provided by the present application is shown. The method can specifically include the following steps: Figure 4 Figure 4 ​​

[0119] S401, determine a target power consumption according to the current power consumption of the second power device and a preset redundancy threshold.

[0120] In the embodiments of the present application, the preset redundancy threshold can be a percentage (such as 10%, 15%, etc.) that is set in advance to cope with uncertain factors such as illumination intensity fluctuation and transient power change of the second power device.

[0121] Specifically, the current power consumption of the second power device and the preset redundancy threshold can be input into a target power consumption formula to calculate the target power consumption. The target power consumption calculation formula can be:

[0122]

[0123] wherein, is the target power consumption, is the preset redundancy threshold, is the current power consumption of the second power device.

[0124] For example, the preset redundancy threshold is 10%, the current power consumption of the second power device is 1W, and the target power consumption is (1+10%) x 1W = 1.1W.

[0125] S402, obtain the power generation efficiency of the auxiliary photovoltaic panel, and determine the deployment degree of the auxiliary photovoltaic panel according to the target power consumption, the power generation efficiency and the current illumination intensity.

[0126] In the embodiments of the present application, the power generation efficiency of the auxiliary photovoltaic panel can be obtained, and the deployment degree of the auxiliary photovoltaic panel can be determined according to the target power consumption, the power generation efficiency and the current illumination intensity. The power generation efficiency is the ratio of the solar radiation energy received by the auxiliary photovoltaic panel to the electric energy, and is used to reflect the performance of the auxiliary photovoltaic panel.

[0127] Specifically, the deployment degree of the auxiliary photovoltaic panel can be determined according to the target power consumption, the power generation efficiency and the current illumination intensity, which can refer to the method shown in Figure 5 As shown in Figure 5 Another embodiment of the method for determining the deployment degree of the auxiliary photovoltaic panel provided by the present application is shown in the flowchart of the embodiment process. The method can specifically include the following steps:

[0128] S501, input the target power consumption, the power generation efficiency and the current illumination intensity into the deployment area calculation formula to obtain the deployment area of the auxiliary photovoltaic panel.

[0129] In the embodiments of the present application, the target power consumption, the power generation efficiency and the current illumination intensity are input into the deployment area calculation formula to obtain the deployment area of the auxiliary photovoltaic panel.

[0130] ​Specifically, the unfolding area calculation formula can be:

[0131] S_pv_need=(P_pv_target×1000) / (E_light×η);

[0132] wherein, S_pv_need is the unfolding area, P_pv_target is the target power consumption, E_light is the current light intensity, and η is the power generation efficiency.

[0133] For example, the target power consumption is 1.15 kW, the current light intensity is 300 W / m², and the power generation efficiency is 16%. The target power consumption, the power generation efficiency, and the current light intensity are input into the unfolding area calculation formula, and the unfolding area of the auxiliary photovoltaic panel is calculated as (1.15×1000) / (300×0.16)=23.96 m².

[0134] S502, the total unfolding area of the auxiliary photovoltaic panel is obtained, and the unfolding degree of the auxiliary photovoltaic panel is determined according to the unfolding area and the total unfolding area.

[0135] In the embodiments of the present application, the total unfolding area of the auxiliary photovoltaic panel can be obtained, and the unfolding degree of the auxiliary photovoltaic panel is determined according to the unfolding area and the total unfolding area.

[0136] wherein, the unfolding area and the total unfolding area are input into the unfolding degree formula, and the unfolding degree of the auxiliary photovoltaic panel is calculated, and the unfolding degree formula can be:

[0137] D=(S_pv_need / S_pv_total)×100%;

[0138] wherein, D is the unfolding degree of the auxiliary photovoltaic panel, S_pv_need is the unfolding area, and S_pv_total is the total unfolding area.

[0139] For example, if the total unfolding area of the auxiliary photovoltaic panel is 2 m², and the unfolding area is 0.8 m², the unfolding degree of the auxiliary photovoltaic panel is: (0.8 m² / 2 m²)×100%=40%.

[0140] The above describes the specific process of determining the expansion degree of the auxiliary photovoltaic panel according to the current power consumption of the second power device and the current light intensity. Before determining the expansion degree of the auxiliary photovoltaic panel according to the current power consumption of the second power device and the current light intensity, it is also necessary to determine whether the current light intensity is lower than the preset light intensity threshold, and in the case that the current light intensity is lower than the preset light intensity threshold, the auxiliary photovoltaic panel is controlled to expand according to the maximum expansion degree to supply power to the second power device. In the case that the current light intensity is not lower than the preset light intensity threshold, the step of determining the expansion degree of the auxiliary photovoltaic panel according to the current power consumption of the second power device and the current light intensity is performed, that is, step S307. The preset light intensity threshold is a preset light intensity value (such as 300 W / m2) for measuring whether the current light condition is sufficient to support the expansion of the auxiliary photovoltaic panel according to the expansion degree. In the case that the current light intensity is lower than the preset light intensity threshold, it means that the current light condition is weak, and the auxiliary photovoltaic panel needs to be expanded to the maximum extent to receive light. Therefore, the auxiliary photovoltaic panel needs to be controlled to expand according to the maximum expansion degree to supply power to the second power device. The maximum expansion degree is 1 (or 100%), that is, the auxiliary photovoltaic panel needs to be fully expanded.

[0141] S308, controlling the auxiliary photovoltaic panel to expand according to the expansion degree to supply power to the second power device.

[0142] In the embodiments of the present application, the expansion degree obtained through the above steps is used to control the auxiliary photovoltaic panel to expand according to the expansion degree to obtain light and convert light energy into electrical energy to supply power to the second power device.

[0143] For example, the expansion degree is 50%, and the auxiliary photovoltaic panel is composed of four photovoltaic panels of the same specification. Therefore, the auxiliary photovoltaic panel is controlled to expand two photovoltaic panels to obtain light and supply power to the second power device.

[0144] In addition, before controlling the auxiliary photovoltaic panel to expand according to the expansion degree to supply power to the second power device, it is also necessary to determine the rationality of the expansion degree, which can include the following steps:

[0145] Step 1, determining whether the expansion degree is less than a preset first expansion degree threshold, and in the case that the expansion degree is less than the preset first expansion degree threshold, controlling the battery to supply power to the second power device.

[0146] In the embodiment of the present application, the first deployment degree threshold is a lower limit (e.g., 1%) for defining the deployment degree of the auxiliary photovoltaic panel. When the calculated deployment degree is lower than the preset first deployment degree threshold, it indicates that the power generation of the auxiliary photovoltaic panel is relatively limited and the power generation efficiency is low under the current light condition. At this time, if the auxiliary photovoltaic panel is forced to be deployed, the generated power may not be enough to offset the power consumption of the auxiliary photovoltaic panel itself, and unnecessary mechanical wear will be caused. Therefore, the deployment of the auxiliary photovoltaic panel is abandoned, and the battery is directly used to supply power to the second power device (e.g., an electronic control module and a communication module). The battery is a backup power supply.

[0147] Step 2, judging whether the deployment degree is greater than a preset second deployment degree threshold, and in the case that the deployment degree is greater than the preset second deployment degree threshold, controlling the auxiliary photovoltaic panel to be deployed according to the maximum deployment degree to supply power to the second power device.

[0148] In the embodiment of the present application, the second deployment degree threshold is a boundary parameter value (e.g., 98%) for defining the approximate full-load deployment, that is, the upper limit of the deployment degree of the auxiliary photovoltaic panel. When the deployment degree is higher than the threshold, it indicates that the power consumption demand of the second power device is high, or the current light intensity is general, and the auxiliary photovoltaic panel needs to generate power with an area close to the maximum. At this time, it is determined to be in the “maximum deployment” state. In order to avoid frequent oscillation of the control instruction near the critical value and simplify the control logic to improve the response speed, the auxiliary photovoltaic panel can be directly instructed to be deployed according to the maximum deployment degree to supply power to the second power device.

[0149] Step 3, in the case that the deployment degree is neither less than the preset first deployment degree threshold nor greater than the preset second deployment degree threshold, performing the step of determining the deployment degree of the auxiliary photovoltaic panel according to the current power consumption of the second power device and the current light intensity. The preset first deployment degree threshold is less than the preset second deployment degree threshold.

[0150] In the embodiment of the present application, in the case that the deployment degree is neither less than the preset first deployment degree threshold nor greater than the preset second deployment degree threshold, it indicates that the currently determined deployment degree of the auxiliary photovoltaic panel is reasonable and effective. Therefore, the step of determining the deployment degree of the auxiliary photovoltaic panel according to the current power consumption of the second power device and the current light intensity can be performed, that is, step S307. The preset first deployment degree threshold is used to define the lower limit of the deployment degree of the auxiliary photovoltaic panel, and the preset second deployment degree threshold is used to define the upper limit of the deployment degree of the auxiliary photovoltaic panel. Therefore, the preset first deployment degree threshold is less than the preset second deployment degree threshold.

[0151] For example, the preset second deployment degree threshold is 100%, and the preset first deployment degree threshold is 10%. If the deployment degree is greater than 100%, it indicates that the area of the auxiliary photovoltaic panel required to be deployed exceeds the total deployment area, and even if the auxiliary photovoltaic panel is fully deployed, the deployment degree cannot be met. At this time, the deployment degree is determined as 100%, that is, the auxiliary photovoltaic panel is maximally deployed. If the auxiliary photovoltaic panel is fully deployed, it still cannot meet the demand, and the power generation gap is supplemented by the battery; if the deployment degree is less than 10%, it indicates that the required area is too small, and the mechanical loss of the deployed auxiliary photovoltaic panel is greater than the power generation benefit. At this time, the deployment degree can be set to 0, that is, the auxiliary photovoltaic panel is not deployed, and the battery directly supplies power.

[0152] In another embodiment of the present application, further comprising: detecting whether the photovoltaic air conditioner is in standby mode, and controlling the auxiliary photovoltaic panel to supply power to the photovoltaic air conditioner if the photovoltaic air conditioner is in standby mode.

[0153] As shown in Figure 6 , an implementation flow diagram of another photovoltaic air conditioner power supply control method provided by an embodiment of the present application is shown. The method is applied to an intelligent power supply management module, and can specifically include the following steps:

[0154] S601, acquiring the current electrical performance parameter of the main photovoltaic panel.

[0155] In an embodiment of the present application, this step is similar to the above step S101, and will not be described one by one in this embodiment of the present application.

[0156] S602, acquiring any power device in the photovoltaic air conditioner and determining the functional positioning of the power device.

[0157] In an embodiment of the present application, any power device in the photovoltaic air conditioner is acquired, and the functional positioning of the power device is determined. The functional positioning of the power device refers to whether the power device directly participates in the predetermined function of the photovoltaic air conditioner (for example, whether it directly participates in the "core refrigeration / heat" link).

[0158] Specifically, all power devices in the photovoltaic air conditioner can be traversed, and a pre-stored device function database is accessed to acquire the functional positioning of each power device.

[0159] S603, in the case where the functional positioning represents that the power device is responsible for the predetermined function of the photovoltaic air conditioner, the power device is determined as the first power device.

[0160] In an embodiment of the present application, in the case where the functional positioning represents that the power device is responsible for the predetermined function of the photovoltaic air conditioner, the power device is determined as the first power device.

[0161] For example, the compressor is the core power source of the refrigeration cycle, the outdoor fan motor is the heat dissipation guarantee for the condenser, the indoor fan motor is the power source for indoor air circulation, and the main control chip is the control center of the photovoltaic air conditioner power supply control system. Their functional positioning all represent that they are responsible for the predetermined functions of the photovoltaic air conditioner. Therefore, the compressor, outdoor fan motor, indoor fan motor, and main control chip are identified as the first power devices.

[0162] S604, where the power device is not responsible for the intended function of the photovoltaic air conditioner, the power device is identified as the second power device.

[0163] In the embodiments of this application, when the power device is not responsible for the predetermined function of the photovoltaic air conditioner, the power device is identified as the second power device.

[0164] It should be noted that if the functional positioning indicates that the power device is not responsible for the predetermined function of the photovoltaic air conditioner, that is, the power device is only responsible for auxiliary functions such as "control, monitoring, and communication" and does not directly participate in energy conversion, even if it stops working, the photovoltaic air conditioner may still maintain basic cooling / heating (only losing intelligent control or data transmission capabilities).

[0165] For example, the communication module is only used for "data interaction between the photovoltaic inverter and the air conditioner" (such as transmitting photovoltaic power generation and air conditioner operating status), or "remote control between the air conditioner and the cloud" (such as APP temperature adjustment); the temperature sensor is only responsible for collecting ambient temperature to provide decision-making basis for the controller, and does not affect the refrigerant cycle itself.

[0166] Typically, the power consumption of the primary power device (such as a compressor) responsible for a predetermined function is much greater than that of the secondary power device (such as a communication module) that performs an auxiliary function.

[0167] S605, when the electrical performance parameters meet the power supply control conditions, performs the following power supply control operation: controls the main photovoltaic panel to supply power to the first power device, and controls the auxiliary photovoltaic panel to supply power to the second power device.

[0168] In this embodiment of the application, this step is similar to step S202 above, and will not be described in detail here.

[0169] like Figure 7 The diagram shown is a schematic representation of the implementation process of another photovoltaic air conditioning power supply control method provided in this application embodiment. This method is applied to an intelligent power management module and may specifically include the following steps:

[0170] S701, obtain the current electrical performance parameters of the main photovoltaic panel.

[0171] In this embodiment of the application, this step is similar to step S301 above, and will not be described in detail here.

[0172] S702, any power device in the photovoltaic air conditioner is acquired, and a control mode of the power device is determined.

[0173] In the embodiment of the present application, any power device in the photovoltaic air conditioner is acquired, and a control mode of the power device is determined. The control mode refers to the driven mode of the power device. It includes control by a "power drive circuit", direct driving by a controller (such as a single-chip microcomputer), driving of a compressor by an IGBT module / relay, avoiding direct bearing of large current by the controller, and connection of a communication module to the single-chip microcomputer through a UART serial port, which only needs weak signals for control.

[0174] S703, in the case where the control mode is a preset control mode, the power device is determined as a first power device.

[0175] In the embodiment of the present application, in the case where the control mode is a preset control mode, the power device is determined as a first power device. The preset control mode refers to a large-power device control mode using a "power drive circuit".

[0176] For example, the compressor is a core power source of a refrigeration cycle, and its normal operation directly affects the refrigeration or heating effect of the photovoltaic air conditioner. Driving by an IGBT module can accurately adjust the speed and power of the compressor according to the load demand of the photovoltaic air conditioner, so as to realize efficient refrigeration or heating, and therefore the compressor belongs to the first power device. The outdoor fan motor is for heat dissipation of the condenser, and its speed and running time need to be adjusted according to the heat dissipation demand of the condenser. Driving by a relay can conveniently control the start-stop and speed of the outdoor fan motor, ensure that the condenser can work at a suitable temperature, and improve the refrigeration efficiency of the air conditioner, and therefore the outdoor fan motor belongs to the first power device.

[0177] S704, in the case where the control mode is not a preset control mode, the power device is determined as a second power device.

[0178] In the embodiment of the present application, in the case where the control mode is not a preset control mode, the power device is determined as a second power device. The power consumption of the first power device is greater than that of the second power device.

[0179] Specifically, if the power device uses a small-power control mode of "direct driving by a controller", it is determined as a second power device.

[0180] For example, the communication module only needs to send a control instruction by the single-chip microcomputer through a UART serial port, and belongs to the second power device. The temperature sensor only needs a weak signal to trigger data acquisition, converts environmental temperature information into an electric signal, and transmits the electric signal to the controller. The controller adjusts the running parameters of the air conditioner according to the data collected by the temperature sensor, and therefore the temperature sensor belongs to the second power device.

[0181] S705, in the case that the electrical performance parameter meets the power supply control condition, performing the following power supply control operation: controlling the main photovoltaic panel to supply power for the first power device, and controlling the auxiliary photovoltaic panel to supply power for the second power device.

[0182] In the embodiment of the present application, this step is similar to the above-mentioned step S202, and the embodiment of the present application will not be described one by one here.

[0183] In still another embodiment of the present application, the first power device and the second power device can also be determined according to the physical characteristics (size, weight and heat dissipation design) of any power device in the photovoltaic air conditioner.

[0184] Specifically, since the large power device (the first power device) generates a large amount of heat when working, its physical design is significantly different from that of the small power device (the second power device). Specifically, in terms of size, the large power device is usually larger in size to accommodate more heat dissipation structures and electronic elements; in terms of weight, the large power device is also relatively heavy. In terms of heat dissipation design, the large power device is generally equipped with larger heat dissipation fins, fans and other heat dissipation devices. By observing the size and heat dissipation structure of the power device with the naked eye, or using simple measuring tools (such as a ruler, an electronic scale) to measure its size and weight, the first power device and the second power device can be distinguished.

[0185] In still another embodiment of the present application, the first power device and the second power device can be determined according to the electrical characteristics of any power device in the photovoltaic air conditioner.

[0186] Specifically, they can be distinguished in terms of circuit connection, electrical parameters, etc. The large power device (the first power device) needs to be adapted to high-voltage and large current (such as the compressor is mostly 220V AC, the working current is 5-20A, and some direct current photovoltaic air conditioner compressors are 48V / 60V DC, the current is 20-50A); while the small power device (the second power device) is mostly low-voltage and small current (such as the communication module is mostly 5V / 12V DC, the working current is 10-500mA). By checking the circuit connection diagram of the power device and measuring its voltage and current and other electrical parameters using a multimeter, the first power device and the second power device can be determined.

[0187] In addition, in the embodiment of the present application, the photovoltaic air conditioner power supply control method provided by the embodiment of the present application is described in combination with specific examples:

[0188] The embodiment of the present application can improve the comprehensive utilization rate of photovoltaic energy and guarantee the stable operation of the key functions of the system through the dual optimization of structure and control logic.

[0189] Specifically, in the design of the air conditioner outdoor unit body shell, a specific area is reserved for embedding a rotatable folding photovoltaic panel. The photovoltaic panel, as part of the air conditioner shell, plays a structural support and shielding role in normal conditions; when the light condition is insufficient, it is unfolded by electric or manual means to obtain a better light angle for power generation. The output power of the photovoltaic panel is connected to the intelligent power management module through an independent line.

[0190] In addition, a retractable photovoltaic panel is embedded in the air conditioner body shell, which not only has a rotating and folding function, but also can automatically adjust the extension length according to the light intensity, thereby maximizing the absorption of solar energy. The photovoltaic panel is internally provided with a telescopic guide rail and a light intensity sensor, which automatically adjusts the unfolding degree of the photovoltaic panel according to the light intensity and angle. When the light intensity is strong, the photovoltaic panel is controlled to be fully unfolded to increase the light receiving area; when the light intensity is weak, the photovoltaic panel is controlled to be partially unfolded or retracted to reduce energy loss and improve power generation efficiency.

[0191] The intelligent power management module, as the core control unit, can monitor the output voltage and current of the main photovoltaic panel in real time through the voltage sensor. When the voltage of the main photovoltaic panel is detected to be lower than the set threshold (such as 10% lower than the rated voltage) and lasts for 5 seconds, it is determined that the power generation energy is insufficient, and the auxiliary photovoltaic panel is automatically triggered to supply power, and the small load priority power supply mode is switched, with a response time controlled within 0.5 seconds to ensure continuous power supply for critical devices. Users can also manually switch the power supply mode through the manual switch button to meet the needs of different users under certain working conditions.

[0192] At the same time, artificial intelligence algorithms can be introduced into the intelligent power management module to predict the power generation capacity of the main photovoltaic panel and the load demand in advance by learning from historical power consumption data, weather forecast information and user usage habits, dynamically optimize the main and auxiliary power supply switching strategy, and improve the overall energy efficiency of the system. For example, according to the weather forecast information, the light intensity and duration in the future are predicted, and the power supply proportion of the main and auxiliary photovoltaic panels is adjusted in advance to avoid power supply interruption due to insufficient light.

[0193] In addition, the intelligent power management module can integrate current sensors and temperature sensors in addition to voltage sensors to judge the power generation state of the main photovoltaic panel through multi-parameter fusion analysis to avoid false switching caused by single parameter fluctuation and improve stability. For example, when the voltage sensor detects voltage fluctuation, the data of the current sensor and the temperature sensor are combined to comprehensively judge whether the main photovoltaic panel has really failed to avoid power supply switching caused by false judgment.

[0194] This application replaces the traditional centralized battery with a distributed energy storage system. Each indoor unit is equipped with an independent small battery, which coordinates the power supply strategy with the outdoor unit via a wireless communication module. This reduces power path delay, improves the response speed to abnormal power outages, and supports more flexible expansion. For example, when an indoor unit experiences an abnormal power outage and the outdoor unit cannot detect it, the independent small battery of that indoor unit automatically supplies power, enabling the indoor unit's mainboard to complete the shutdown process and send a fault alarm, thus preventing data loss and equipment damage caused by abnormal power outages.

[0195] In addition to powering small loads, the auxiliary photovoltaic (PV) panels generate electricity to charge the battery in the control box. This battery is connected to the mainboard of all indoor units via an independent circuit. When an indoor unit experiences an abnormal power outage and the outdoor unit cannot be detected, the battery automatically supplies power, enabling the indoor unit's mainboard to complete the shutdown process and send a fault alarm. Furthermore, the auxiliary PV panels can also provide power for the PV unit's standby mode. This involves actively shutting down the main PV panel through power switching and response control, thereby reducing the frequency of main PV panel usage, reducing the burden on the main PV panel or the grid, and lowering the overall system's standby power consumption. For example, at night or in low-light conditions, the auxiliary PV panels power the standby circuit of the air conditioner, maintaining its basic operating status while reducing reliance on the main PV panel or the grid.

[0196] Corresponding to the above method embodiments, this application also provides a photovoltaic air conditioner power supply control device, applied to an intelligent power management module, such as... Figure 8 As shown, the device may include: a parameter acquisition module 801, a device determination module 802, an operation execution module 803, and a power supply control module 804.

[0197] The parameter acquisition module 801 is used to acquire the current electrical performance parameters of the main photovoltaic panel.

[0198] Device determination module 802 is used to determine the first power device and the second power device in the photovoltaic air conditioner;

[0199] Among them, the power consumption of the first power device is greater than that of the second power device;

[0200] The operation execution module 803 is used to perform the following power supply control operations when the electrical performance parameters meet the power supply control conditions:

[0201] The power supply control module 804 is used to control the main photovoltaic panel to supply power to the first power device and to control the auxiliary photovoltaic panel to supply power to the second power device.

[0202] This application also provides a photovoltaic air conditioner, such as... Figure 9As shown, the apparatus includes a processor 901, a communication interface 902, a memory 903 and a communication bus 904, wherein the processor 901, the communication interface 902 and the memory 903 complete mutual communication through the communication bus 904,

[0203] The memory 903 is used for storing a computer program.

[0204] The processor 901 is used for executing the program stored in the memory 903, and the following steps are implemented:

[0205] The current electrical performance parameter of the main photovoltaic panel is acquired, and the first power device and the second power device in the photovoltaic air conditioner are determined, wherein the power consumption of the first power device is greater than that of the second power device; in the case that the electrical performance parameter meets the power supply control condition, the following power supply control operation is performed: the main photovoltaic panel is controlled to supply power to the first power device, and the auxiliary photovoltaic panel is controlled to supply power to the second power device.

[0206] The communication bus mentioned in the above photovoltaic air conditioner can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The communication bus can be divided into an address bus, a data bus, a control bus, etc. For the convenience of representation, only one thick line is used in the figure, but it does not mean that there is only one bus or only one type of bus.

[0207] The communication interface is used for communication between the above photovoltaic air conditioner and other devices.

[0208] The memory can include a random access memory (RAM) and can also include a non-volatile memory, for example, at least one disk memory. Optionally, the memory can also be at least one storage device located away from the aforementioned processor.

[0209] The processor described above can be a general processor, including a central processing unit (CPU), a network processor (NP), etc.; can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component.

[0210] In another embodiment provided in the present application, a storage medium is provided, and the storage medium stores instructions, which, when executed on a computer, cause the computer to perform the photovoltaic air conditioner power supply control method in any of the above embodiments.

[0211] In another embodiment provided in the present application, a computer program product is provided, and the computer program product includes instructions, which, when executed on a computer, cause the computer to perform the photovoltaic air conditioner power supply control method in any of the above embodiments.

[0212] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable device. The computer instructions can be stored in a storage medium or transferred from one storage medium to another storage medium, for example, the computer instructions can be transferred from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. The storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available medium can be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)) and the like.

[0213] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the description herein. It must be stressed that any relationship specified by, between, or named as a first and second, A and B or the like, merely designates one entity or action for the other for the ease of the description and is not intended to imply that a particular position in the construction or order of such entities is in any way requisite. Like numbers signify like elements in all drawings. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the description herein. Additionally, the use of the terms "include," "include

[0214] Each of the various embodiments in the present specification is described in a relevant manner, and the same or similar parts between the various embodiments can be referred to each other. Each of the various embodiments focuses on the difference from other embodiments. In particular, for the system embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the part of the description of the method embodiments.

[0215] The above only describes the preferred embodiments of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A photovoltaic air conditioner power supply control method, characterized by, The method is applied to an intelligent power management module, and comprises the following steps: obtaining the current electrical performance parameter of a main photovoltaic panel, and determining a first power device and a second power device in a photovoltaic air conditioner; wherein the power consumption of the first power device is greater than the power consumption of the second power device; in the case that the electrical performance parameter meets a power supply control condition, performing the following power supply control operation: controlling the main photovoltaic panel to supply power to the first power device, and controlling an auxiliary photovoltaic panel to supply power to the second power device, comprising: determining the current power consumption of the second power device, and determining the current light intensity of the environment in which the photovoltaic air conditioner is located; determining the unfolding degree of the auxiliary photovoltaic panel according to the current power consumption of the second power device and the current light intensity; controlling the auxiliary photovoltaic panel to unfold according to the unfolding degree to supply power to the second power device; the step of determining the unfolding degree of the auxiliary photovoltaic panel according to the current power consumption of the second power device and the current light intensity comprises: determining a target power consumption according to the current power consumption of the second power device and a preset redundancy threshold; obtaining the power generation efficiency of the auxiliary photovoltaic panel, and determining the unfolding degree of the auxiliary photovoltaic panel according to the target power consumption, the power generation efficiency and the current light intensity; before the step of determining the unfolding degree of the auxiliary photovoltaic panel according to the current power consumption of the second power device and the current light intensity, the method further comprises: judging whether the current light intensity is lower than a preset light intensity threshold, and performing the following operation in the case that the current light intensity is lower than the preset light intensity threshold: controlling the auxiliary photovoltaic panel to unfold according to a maximum unfolding degree to supply power to the second power device; in the case that the current light intensity is not lower than the preset light intensity threshold, performing the step of determining the unfolding degree of the auxiliary photovoltaic panel according to the current power consumption of the second power device and the current light intensity; before the step of controlling the auxiliary photovoltaic panel to unfold according to the unfolding degree to supply power to the second power device, the method further comprises: judging whether the unfolding degree is less than a preset first unfolding degree threshold, and controlling a battery to supply power to the second power device in the case that the unfolding degree is less than the preset first unfolding degree threshold; judging whether the unfolding degree is greater than a preset second unfolding degree threshold, and controlling the auxiliary photovoltaic panel to unfold according to a maximum unfolding degree to supply power to the second power device in the case that the unfolding degree is greater than the preset second unfolding degree threshold; in the case that the unfolding degree is not less than the preset first unfolding degree threshold and not greater than the preset second unfolding degree threshold, performing the step of determining the unfolding degree of the auxiliary photovoltaic panel according to the current power consumption of the second power device and the current light intensity; wherein the preset first unfolding degree threshold is less than the preset second unfolding degree threshold.

2. The method of claim 1, wherein, the auxiliary photovoltaic panel is part of the photovoltaic air conditioner shell, or the auxiliary photovoltaic panel is nested in the photovoltaic air conditioner shell.

3. The method of claim 1, wherein, the step of determining a first power device and a second power device in a photovoltaic air conditioner comprises: acquire any power device in the photovoltaic air conditioner, and determine the power consumption of the power device; determine the power device as a first power device when the ratio of the power consumption of the power device to the total power consumption of the photovoltaic air conditioner is greater than a preset first value; determine the power device as a second power device when the ratio of the power consumption of the power device to the total power consumption of the photovoltaic air conditioner is less than a preset second value; determine the power device as a first power device or a second power device according to the functional orientation or control mode of the power device when the ratio of the power consumption of the power device to the total power consumption of the photovoltaic air conditioner is less than or equal to the preset first value and greater than or equal to the preset second value; wherein the preset first value is greater than the preset second value.

4. The method of claim 1, wherein, The determination of the first power device and the second power device in the photovoltaic air conditioner comprises: acquiring any power device in the photovoltaic air conditioner, and determining the functional orientation of the power device; determining the power device as a first power device when the functional orientation indicates that the power device is responsible for a predetermined function of the photovoltaic air conditioner; determining the power device as a second power device when the functional orientation indicates that the power device is not responsible for the predetermined function of the photovoltaic air conditioner.

5. The method of claim 1, wherein, The determination of the first power device and the second power device in the photovoltaic air conditioner comprises: acquiring any power device in the photovoltaic air conditioner, and determining the control mode of the power device; determining the power device as a first power device when the control mode is a preset control mode; determining the power device as a second power device when the control mode is not the preset control mode.

6. The method of claim 1, wherein, The electrical performance parameters include voltage and / or current, and the electrical performance parameters meet the power supply control condition, which comprises: the voltage is less than a preset voltage threshold and lasts for a preset first time length; and / or the current is less than a preset current threshold and lasts for a preset second time length. The determination of the deployment degree of the auxiliary photovoltaic panel according to the target power consumption, the power generation efficiency, and the current light intensity comprises:

7. The method of claim 1, wherein, inputting the target power consumption, the power generation efficiency, and the current light intensity into a deployment area calculation formula to obtain the deployment area of the auxiliary photovoltaic panel; acquiring the total deployment area of the auxiliary photovoltaic panel, and determining the deployment degree of the auxiliary photovoltaic panel according to the deployment area and the total deployment area; wherein the deployment area calculation formula comprises: S_pv_need=(P_pv_target×1000) / (E_light×η); the S_pv_need is the deployment area, the P_pv_target is the target power consumption, the E_light is the current light intensity, and the η is the power generation efficiency. The method further comprises:

8. The method of claim 1, wherein, detecting whether the photovoltaic air conditioner is in standby mode, and controlling the auxiliary photovoltaic panel to supply power to the photovoltaic air conditioner when the photovoltaic air conditioner is in standby mode. The device is applied to an intelligent power management module, and the device comprises:

9. A photovoltaic air conditioner power supply control device, characterized by, a parameter acquisition module configured to acquire the current electrical performance parameters of the main photovoltaic panel; ​ A device determining module is configured to determine a first power device and a second power device in the photovoltaic air conditioner; The power consumption of the first power device is greater than that of the second power device; An operation executing module is configured to execute the following power supply control operation when the electrical performance parameter meets the power supply control condition: The power supply control module is configured to control the main photovoltaic panel to supply power to the first power device and control the auxiliary photovoltaic panel to supply power to the second power device, including: determining the current power consumption of the second power device and determining the current light intensity of the environment in which the photovoltaic air conditioner is located; determining the unfolding degree of the auxiliary photovoltaic panel according to the current power consumption of the second power device and the current light intensity; controlling the auxiliary photovoltaic panel to unfold according to the unfolding degree to supply power to the second power device; The step of determining the unfolding degree of the auxiliary photovoltaic panel according to the current power consumption of the second power device and the current light intensity includes: determining a target power consumption according to the current power consumption of the second power device and a preset redundancy threshold; obtaining the power generation efficiency of the auxiliary photovoltaic panel, and determining the unfolding degree of the auxiliary photovoltaic panel according to the target power consumption, the power generation efficiency and the current light intensity; Before the step of determining the unfolding degree of the auxiliary photovoltaic panel according to the current power consumption of the second power device and the current light intensity, the method further includes: judging whether the current light intensity is lower than a preset light intensity threshold, and performing the following operation when the current light intensity is lower than the preset light intensity threshold: controlling the auxiliary photovoltaic panel to unfold according to a maximum unfolding degree to supply power to the second power device; when the current light intensity is not lower than the preset light intensity threshold, performing the step of determining the unfolding degree of the auxiliary photovoltaic panel according to the current power consumption of the second power device and the current light intensity; Before the step of controlling the auxiliary photovoltaic panel to unfold according to the unfolding degree to supply power to the second power device, the method further includes: judging whether the unfolding degree is less than a preset first unfolding degree threshold, and controlling the battery to supply power to the second power device when the unfolding degree is less than the preset first unfolding degree threshold; judging whether the unfolding degree is greater than a preset second unfolding degree threshold, and controlling the auxiliary photovoltaic panel to unfold according to a maximum unfolding degree to supply power to the second power device when the unfolding degree is greater than the preset second unfolding degree threshold; when the unfolding degree is neither less than the preset first unfolding degree threshold nor greater than the preset second unfolding degree threshold, performing the step of determining the unfolding degree of the auxiliary photovoltaic panel according to the current power consumption of the second power device and the current light intensity; wherein the preset first unfolding degree threshold is less than the preset second unfolding degree threshold.

10. A photovoltaic air conditioner characterized by, The device includes a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete mutual communication through the communication bus; The memory is configured to store a computer program. A processor for implementing the method of any of claims 1-8 when executing a program stored on a memory.

11. A storage medium having stored thereon a computer program, characterized in that The program which, when executed by a processor, implements the method of any of claims 1-8.

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