Output power adjusting method and device and electronic equipment

Abstract

The invention provides an output power adjusting method and device and electronic equipment, and relates to the technical field of photoelectric conversion, and the method comprises the steps: obtaining an actually measured DC voltage and a battery output power; based on the actually measured direct current voltage and the battery output power, first photovoltaic output power is determined, and the first photovoltaic output power is photovoltaic output power before filtering; filtering processing is carried out on the first photovoltaic output power, second photovoltaic output power is determined, and the second photovoltaic output power is the photovoltaic output power which is smoothly output after filtering; and determining energy storage charging and discharging power by using the first photovoltaic output power and the second photovoltaic output power, and adjusting the output power of the light storage all-in-one machine according to the energy storage charging and discharging power. According to the invention, the photovoltaic output power change can be responded in time, so that the power output smoothness of the optical storage all-in-one machine is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of optoelectronic conversion, and particularly to an output power adjustment method, device, and electronic device. Background Art

[0002] In the structure of a photovoltaic-storage integrated inverter, the photovoltaic and energy storage are DC-coupled through their respective DC / DC converters and connected to the AC point of common coupling PCC through DA / AC conversion. Due to the randomness and uncertainty of photovoltaic output, the coordinated operation of the photovoltaic-storage integration can convert uncontrollable renewable energy into stable and controllable high-quality energy.

[0003] Currently, related technologies propose that when obtaining the photovoltaic output power, a communication method can be used to connect the photovoltaic DC / DC and the energy storage DC / DC through field buses such as RS485 and CAN, enabling the energy storage DC / DC to communicate with the photovoltaic DC / DC, thereby obtaining the current photovoltaic output power. However, since field buses generally use serial buses and the baud rate generally does not exceed 1 Mbps, adding the time for flow control on this basis, the data acquisition period is generally in seconds, resulting in a slow speed for the energy storage to obtain the photovoltaic output power, thereby reducing the control speed and being unable to respond promptly to changes in the photovoltaic output power, resulting in poor smoothing effect of the output power. Summary of the Invention

[0004] In view of this, an object of the present invention is to provide an output power adjustment method, device, and electronic device, which can respond promptly to changes in the photovoltaic output power, thereby ensuring the smoothness of the power output of the photovoltaic-storage integrated machine.

[0005] In a first aspect, an embodiment of the present invention provides an output power adjustment method, which is applied to the control end of a photovoltaic-storage integrated machine. The method includes: obtaining the measured DC voltage and the battery output power; determining a first photovoltaic output power based on the measured DC voltage and the battery output power, where the first photovoltaic output power is the photovoltaic output power before filtering; performing a filtering process on the first photovoltaic output power to determine a second photovoltaic output power, where the second photovoltaic output power is the smoothly output photovoltaic output power after filtering; using the first photovoltaic output power and the second photovoltaic output power to determine the energy storage charge and discharge power, and adjusting the output power of the photovoltaic-storage integrated machine according to the energy storage charge and discharge power.

[0006] In one embodiment, the step of determining the first photovoltaic output power based on the measured DC voltage and the battery output power includes: obtaining the maximum output power, the highest DC voltage, and the lowest DC voltage of the integrated photovoltaic and energy storage device; determining the actual output power based on the measured DC voltage, the maximum output power, the highest DC voltage, and the lowest DC voltage through a voltage calculation model; and determining the first photovoltaic output power based on the battery output power and the actual output power through a power calculation model.

[0007] In one embodiment, the step of determining the actual output power based on the measured DC voltage, the maximum output power, the highest DC voltage, and the lowest DC voltage through a voltage calculation model includes: substituting the maximum output power, the highest DC voltage, and the lowest DC voltage as constants into the voltage calculation model, and inputting the measured DC voltage into the voltage calculation model to determine the actual output power; the calculation logic of the voltage calculation model is: wherein, U dc represents the measured DC voltage, U dcl represents the lowest DC voltage, U dch represents the highest DC voltage, P max represents the maximum output power, P o represents the actual output power.

[0008] In one embodiment, the step of determining the first photovoltaic output power based on the battery output power and the actual output power through a power calculation model includes: inputting the battery output power and the actual output power into the power calculation model to determine the first photovoltaic output power; the calculation logic of the power calculation model is: P pv = P o - P bat ; wherein, P pv represents the first photovoltaic output power, P bat represents the battery output power.

[0009] In one embodiment, the step of filtering the first photovoltaic output power to determine the second photovoltaic output power includes: filtering the high-frequency fluctuation component of the first photovoltaic output power by using a first-order inertial filtering algorithm to determine the second photovoltaic output power.

[0010] In one embodiment, the step of determining the energy storage charge and discharge power by using the first photovoltaic output power and the second photovoltaic output power includes: determining the difference between the second photovoltaic output power and the first photovoltaic output power as the energy storage charge and discharge power.

[0011] In one embodiment, the step of adjusting the output power of the integrated photovoltaic and energy storage device according to the energy storage charge and discharge power includes: adjusting the battery output power according to the energy storage charge and discharge power so that the sum of the battery output power and the second photovoltaic output power maintains a smooth power output.

[0012] In a second aspect, an embodiment of the present invention further provides an output power adjustment device, which is applied to the control end of an integrated photovoltaic and energy storage device. The device includes: a data acquisition module, which acquires the measured DC voltage and the battery output power; a data analysis module, which determines a first photovoltaic output power based on the measured DC voltage and the battery output power, where the first photovoltaic output power is the photovoltaic output power before filtering; a data processing module, which performs filtering processing on the first photovoltaic output power to determine a second photovoltaic output power, where the second photovoltaic output power is the smoothly output photovoltaic output power after filtering; and a power adjustment module, which determines the energy storage charge and discharge power by using the first photovoltaic output power and the second photovoltaic output power, and adjusts the output power of the integrated photovoltaic and energy storage device according to the energy storage charge and discharge power.

[0013] In a third aspect, an embodiment of the present invention further provides an electronic device, including a processor and a memory. The memory stores computer-executable instructions that can be executed by the processor, and the processor executes the computer-executable instructions to implement the method provided in any one of the first aspect.

[0014] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, which stores computer-executable instructions. When the computer-executable instructions are called and executed by a processor, the computer-executable instructions cause the processor to implement the method provided in any one of the first aspect.

[0015] The embodiments of the present invention bring the following beneficial effects:

[0016] For an output power adjustment method, device and electronic device provided by an embodiment of the present invention, after acquiring the measured DC voltage and the battery output power, a first photovoltaic output power is determined based on the measured DC voltage and the battery output power, and filtering processing is performed on the first photovoltaic output power to determine a second photovoltaic output power. Finally, the energy storage charge and discharge power is determined by using the first photovoltaic output power and the second photovoltaic output power, and the output power of the integrated photovoltaic and energy storage device is adjusted according to the energy storage charge and discharge power. The embodiments of the present invention can respond to changes in photovoltaic output power in a timely manner, thereby ensuring the smoothness of the power output of the integrated photovoltaic and energy storage device.

[0017] Other features and advantages of the present invention will be described in the following specification, and, in part, will be obvious from the specification, or will be understood by implementing the present invention. The objectives and other advantages of the present invention are achieved and obtained by the structures specifically pointed out in the specification, claims and drawings.

[0018] To make the above objectives, features and advantages of the present invention more obvious and understandable, the following specific preferred embodiments are given below and in conjunction with the accompanying drawings, a detailed description is as follows. Description of the Drawings

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Structural schematic diagram of a photovoltaic-storage integrated converter provided by an embodiment of the present invention;

[0021] Figure 2 Flow schematic diagram of an output power regulation method provided by an embodiment of the present invention;

[0022] Figure 3 Structural schematic diagram of an output power regulation device provided by an embodiment of the present invention;

[0023] Figure 4 Structural schematic diagram of an electronic device provided by an embodiment of the present invention. Specific embodiments

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0025] In the structure of a photovoltaic-storage integrated inverter, the photovoltaic and energy storage are DC-coupled through their respective DC / DC converters and connected to the AC Point of Common Coupling (PCC) through DA / AC conversion. Due to the randomness and uncertainty of photovoltaic power output, the coordinated operation of photovoltaic-storage integration can convert uncontrollable renewable energy into stable and controllable high-quality energy. Currently, related technologies propose that when obtaining the photovoltaic output power, a communication method can be used to connect the photovoltaic DC / DC and energy storage DC / DC through field buses such as RS485 and CAN, enabling the energy storage DC / DC to communicate with the photovoltaic DC / DC, thereby obtaining the current output power of the photovoltaic. However, since field buses generally use serial buses and the baud rate generally does not exceed 1 Mbps, adding the time for flow control on this basis, the data acquisition period is generally in seconds, resulting in a slow speed for the energy storage to obtain the photovoltaic output power, thus reducing the control speed and being unable to promptly respond to changes in the photovoltaic output power, leading to poor smoothing effect of the output power. Based on this, the output power regulation method provided in the implementation of the present invention realizes the interface with the power grid through grid-connected DC / AC, outputs active power to regulate the voltage of the DC current regulation bus, maintains the stability of the DC bus voltage, and smooths the output of the grid-connected DC / AC through the charge and discharge of the energy storage DC / DC to the battery, and can promptly respond to changes in the photovoltaic output power, thereby ensuring the smoothness of the power output of the photovoltaic-storage integrated machine.

[0026] For ease of understanding of this embodiment, first, a detailed introduction is given to an output power regulation method disclosed in the embodiments of the present invention. This method is applied to the control end of a photovoltaic-storage integrated machine. For ease of understanding of the photovoltaic-storage integrated machine, the embodiments of the present invention provide a schematic structural diagram of a photovoltaic-storage integrated inverter, as Figure 1 shown. The photovoltaic and energy storage are DC-coupled through their respective DC / DC converters and connected to the AC Point of Common Coupling (PCC) through DA / AC conversion. The output power of the photovoltaic DC / DC is the photovoltaic output power, and the output power of the energy storage DC / DC is the battery output power. The present invention filters the photovoltaic output power, calculates the power change amount before and after filtering, and uses the power change amount to regulate the battery output power, thereby ensuring that the sum of the battery output power and the photovoltaic output power at the AC Point of Common Coupling (PCC) is a smoothly output power.

[0027] Based on Figure 1 the schematic structural diagram of a photovoltaic-storage integrated inverter shown, the embodiments of the present invention give a detailed introduction to the output power regulation method. Refer to Figure 2 the schematic flowchart of an output power regulation method shown. This method mainly includes the following steps from step S202 to step S208:

[0028] Step S202: Obtain the measured DC voltage and the battery output power. Here, the DC voltage is controlled by DC / AC, and the battery output power is the current output power of the energy storage DC / DC. In one implementation, the measured DC voltage and the battery output power are variables, and it is necessary to calculate the current energy storage charge-discharge power in real time according to the changes, and adjust the output power of the PV energy storage integrated machine according to the energy storage charge-discharge power.

[0029] Step S204: Based on the measured DC voltage and the battery output power, determine the first PV output power. Here, the first PV output power is the PV output power before filtering. In one implementation, it is also necessary to obtain the maximum output power, the highest DC voltage, and the lowest DC voltage of the PV energy storage integrated machine. The maximum output power, the highest DC voltage, and the lowest DC voltage can be set in advance as constants, and the above constants may be different for different PV energy storage integrated machines.

[0030] Step S206: Perform filtering processing on the first PV output power to determine the second PV output power. Here, the second PV output power is the smoothly output PV output power after filtering. In one implementation, a first-order inertial filtering algorithm or other filtering algorithms and filters can be used to filter the high-frequency fluctuation components of the first PV output power to determine the second PV output power.

[0031] Step S208: Use the first PV output power and the second PV output power to determine the energy storage charge-discharge power, and adjust the output power of the PV energy storage integrated machine according to the energy storage charge-discharge power. In one implementation, the PV output power cannot be adjusted arbitrarily, and the battery output power can be adjusted. The battery output power is adjusted by calculating the energy storage charge-discharge power. For example, if the first PV output power before PV output power filtering is 11 and the second PV output power after filtering is 10, then the energy storage charge-discharge power is -1, which can make the total output power of the PV energy storage integrated machine stably output.

[0032] The above output power adjustment method provided by the embodiments of the present invention can respond to changes in the PV output power in a timely manner, thereby ensuring the smoothness of the power output of the PV energy storage integrated machine.

[0033] The embodiments of the present invention also provide an implementation manner for adjusting the output power of the PV energy storage integrated machine. Specifically, refer to the following (1) to (3):

[0034] (1) After obtaining the maximum output power, the highest DC voltage, and the lowest DC voltage of the PV energy storage integrated machine, the steps of determining the actual output power based on the measured DC voltage, the maximum output power, the highest DC voltage, and the lowest DC voltage through a voltage calculation model, and determining the first PV output power based on the battery output power and the actual output power through a power calculation model are as follows (a) to (b):

[0035] (a) Substitute the maximum output power, the highest DC voltage, and the lowest DC voltage as constants into the voltage calculation model, and input the measured DC voltage into the voltage calculation model to determine the actual output power. The calculation logic of the voltage calculation model is as follows:

[0036]

[0037] Among them, U dc represents the measured DC voltage, U dcl represents the lowest DC voltage, U dch represents the highest DC voltage, P max represents the maximum output power, and P o represents the actual output power.

[0038] In one implementation, when the DC / AC maintains the stability of the DC voltage, the DC voltage value can be associated with the output power to form a linear relationship, thereby generating a voltage calculation model.

[0039] (b) Input the battery output power and the actual output power into the power calculation model to determine the first photovoltaic output power. The calculation logic of the power calculation model is as follows:

[0040] P pv = P o - P bat ;

[0041] Among them, P pv represents the first photovoltaic output power, and P bat represents the battery output power.

[0042] (2) Use the first-order inertial filtering algorithm to filter the high-frequency fluctuation components of the first photovoltaic output power to determine the second photovoltaic output power, and determine the difference between the second photovoltaic output power and the first photovoltaic output power as the energy storage charge and discharge power. In one implementation, the degree of suppression of the photovoltaic output power fluctuation is determined by the low-pass filtering time constant. The larger the time constant, the lower the frequency of the filtered output signal, and the smoother the output signal. The calculation logic of filtering the high-frequency fluctuation components of the first photovoltaic output power through the first-order inertial filtering algorithm is as follows:

[0043]

[0044] Among them, P pv_sms represents the smoothed photovoltaic output power, that is, the second photovoltaic output power, T represents the first-order inertial link time constant, and P pv represents the first photovoltaic output power.

[0045] (3) Adjust the battery output power according to the energy storage charge and discharge power, so that the sum of the battery output power and the second photovoltaic output power maintains a smooth power output. In one embodiment, the energy storage DC / DC charges and discharges the battery, that is, adjusts the battery output power, which can respond to the change of photovoltaic output power in time and keep the total power output of the grid-connected DC / AC in a smooth output state.

[0046] In summary, the present invention can realize the interface with the power grid through the grid-connected DC / AC, output the active power regulation DC current to regulate the voltage of the DC bus, keep the voltage of the DC bus stable, and charge and discharge the battery through the energy storage DC / DC, so as to smooth the output of the grid-connected DC / AC, respond to the change of photovoltaic output power in time, and ensure the smoothness of the power output of the photovoltaic energy storage integrated machine.

[0047] For the output power regulation method provided in the foregoing embodiment, the embodiment of the present invention provides an output power regulation device, which is applied to the control end of the photovoltaic energy storage integrated machine. Refer to Figure 3 the structural schematic diagram of an output power regulation device shown in

[0048] The data acquisition module 302 acquires the measured DC voltage and the battery output power;

[0049] The data analysis module 304 determines the first photovoltaic output power based on the measured DC voltage and the battery output power, where the first photovoltaic output power is the photovoltaic output power before filtering;

[0050] The data processing module 306 performs filtering processing on the first photovoltaic output power to determine the second photovoltaic output power, where the second photovoltaic output power is the smoothly output photovoltaic output power after filtering;

[0051] The power regulation module 308 determines the energy storage charge and discharge power by using the first photovoltaic output power and the second photovoltaic output power, and adjusts the output power of the photovoltaic energy storage integrated machine according to the energy storage charge and discharge power.

[0052] The above output power regulation device provided by the embodiment of the present application can respond to the change of photovoltaic output power in time, so as to ensure the smoothness of the power output of the photovoltaic energy storage integrated machine.

[0053] In one embodiment, when performing the step of determining the first photovoltaic output power based on the measured DC voltage and the battery output power, the above data analysis module 304 is further configured to: acquire the maximum output power, the highest DC voltage and the lowest DC voltage of the photovoltaic energy storage integrated machine; determine the actual output power based on the measured DC voltage, the maximum output power, the highest DC voltage and the lowest DC voltage through a voltage calculation model; determine the first photovoltaic output power based on the battery output power and the actual output power through a power calculation model.

[0054] In one implementation, when performing the step of determining the actual output power based on the measured DC voltage, the maximum output power, the highest DC voltage, and the lowest DC voltage through the voltage calculation model, the above data analysis module 304 is further configured to: substitute the maximum output power, the highest DC voltage, and the lowest DC voltage as constants into the voltage calculation model, and input the measured DC voltage into the voltage calculation model to determine the actual output power; the calculation logic of the voltage calculation model is: where U dc represents the measured DC voltage, U dcl represents the lowest DC voltage, U dch represents the highest DC voltage, P max represents the maximum output power, and P o represents the actual output power.

[0055] In one implementation, when performing the step of determining the first photovoltaic output power based on the battery output power and the actual output power through the power calculation model, the above data analysis module 304 is further configured to: input the battery output power and the actual output power into the power calculation model to determine the first photovoltaic output power; the calculation logic of the power calculation model is: P pv = P o - P bat ; where P pv represents the first photovoltaic output power, and P bat represents the battery output power.

[0056] In one implementation, when performing the step of filtering the first photovoltaic output power to determine the second photovoltaic output power, the above data processing module 306 is further configured to: filter the high-frequency fluctuation component of the first photovoltaic output power by using a first-order inertial filtering algorithm to determine the second photovoltaic output power.

[0057] In one implementation, when performing the step of determining the energy storage charge and discharge power by using the first photovoltaic output power and the second photovoltaic output power, the above power regulation module 308 is further configured to: determine the difference between the second photovoltaic output power and the first photovoltaic output power as the energy storage charge and discharge power.

[0058] In one implementation, when performing the step of adjusting the output power of the photovoltaic and energy storage integrated machine according to the energy storage charge and discharge power, the above power regulation module 308 is further configured to: adjust the battery output power according to the energy storage charge and discharge power so that the sum of the battery output power and the second photovoltaic output power maintains a smooth power output.

[0059] The device provided by the embodiment of the present invention has the same implementation principle and technical effects as those of the foregoing method embodiment. For the sake of brief description, for the parts not mentioned in the device embodiment, reference may be made to the corresponding content in the foregoing method embodiment.

[0060] The embodiment of the present invention provides an electronic device. Specifically, the electronic device includes a processor and a storage device; a computer program is stored on the storage device, and when the computer program is run by the processor, it executes the method described in any one of the foregoing embodiments.

[0061] Figure 4 FIG. is a schematic structural diagram of an electronic device provided by an embodiment of the present invention. The electronic device 100 includes: a processor 40, a memory 41, a bus 42, and a communication interface 43. The processor 40, the communication interface 43, and the memory 41 are connected through the bus 42; the processor 40 is used to execute an executable module stored in the memory 41, such as a computer program.

[0062] Among them, the memory 41 may include a high-speed random access memory (RAM, Random Access Memory), and may also include a non-volatile memory, such as at least one disk memory. Through at least one communication interface 43 (which may be wired or wireless), a communication connection is established between the system network element and at least one other network element, and the Internet, wide area network, local area network, metropolitan area network, etc. can be used.

[0063] The bus 42 may be an ISA bus, a PCI bus, an EISA bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. For the sake of convenience of representation, Figure 4 only a bidirectional arrow is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0064] Among them, the memory 41 is used to store a program. After receiving an execution instruction, the processor 40 executes the program. The method executed by the device defined by the flow process disclosed in any one of the foregoing embodiments of the present invention can be applied to the processor 40 or implemented by the processor 40.

[0065] The processor 40 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in the processor 40 or the instructions in the form of software. The above-mentioned processor 40 may be a general-purpose processor, including a central processing unit (CPU for short), a network processor (NP for short), etc.; it may also be a digital signal processor (DSP for short), an application specific integrated circuit (ASIC for short), a field-programmable gate array (FPGA for short), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. It can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present invention can be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. This storage medium is located in the memory 41, and the processor 40 reads the information in the memory 41 and combines its hardware to complete the steps of the above method.

[0066] The computer program product of the readable storage medium provided by the embodiments of the present invention includes a computer-readable storage medium storing program codes, and the instructions included in the program codes can be used to execute the methods described in the foregoing method embodiments. For specific implementation, reference can be made to the foregoing method embodiments, which will not be elaborated here.

[0067] When the above-mentioned function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, an electronic device, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs that can store program codes.

[0068] Finally, it should be noted that the above-mentioned embodiments are only specific implementation manners of the present invention, used to illustrate the technical solutions of the present invention, rather than limiting them. The protection scope of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: any person skilled in the technical field of the present invention can still modify the technical solutions recorded in the foregoing embodiments, or easily think of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes, or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An output power regulation method, characterized in that, The method is applied to the control end of a photovoltaic-storage integrated machine, and the method includes: Obtain the measured DC voltage and the battery output power; Based on the measured DC voltage and the battery output power, determine the first photovoltaic output power, where the first photovoltaic output power is the photovoltaic output power before filtering; Perform filtering processing on the first photovoltaic output power to determine the second photovoltaic output power, where the second photovoltaic output power is the smoothly output photovoltaic output power after filtering; Use the first photovoltaic output power and the second photovoltaic output power to determine the energy storage charge-discharge power, and adjust the output power of the photovoltaic-storage integrated machine according to the energy storage charge-discharge power.

2. The output power adjustment method according to claim 1, wherein The step of determining the first photovoltaic output power based on the measured DC voltage and the battery output power includes: Obtain the maximum output power, the highest DC voltage, and the lowest DC voltage of the photovoltaic-storage integrated machine; Based on the measured DC voltage, the maximum output power, the highest DC voltage, and the lowest DC voltage, determine the actual output power through a voltage calculation model; Based on the battery output power and the actual output power, determine the first photovoltaic output power through a power calculation model.

3. The output power adjustment method according to claim 2, characterized in that The step of determining the actual output power based on the measured DC voltage, the maximum output power, the highest DC voltage, and the lowest DC voltage through the voltage calculation model includes: Substitute the maximum output power, the highest DC voltage, and the lowest DC voltage as constants into the voltage calculation model, and input the measured DC voltage into the voltage calculation model to determine the actual output power; The calculation logic of the voltage calculation model is: Among them, U dc represents the measured DC voltage, U dcl represents the lowest DC voltage, U dch represents the highest DC voltage, P max represents the maximum output power, P o represents the actual output power.

4. The output power adjustment method according to claim 2, wherein The step of determining the first photovoltaic output power based on the battery output power and the actual output power through the power calculation model includes: Input the battery output power and the actual output power into the power calculation model to determine the first photovoltaic output power; The calculation logic of the power calculation model is: P pv = P o - P bat ; Among them, P pv represents the first photovoltaic output power, and P bat represents the battery output power.

5. The output power adjustment method according to claim 1, characterized in that The step of performing filtering processing on the first photovoltaic output power to determine the second photovoltaic output power includes: Use a first-order inertial filtering algorithm to filter the high-frequency fluctuation component of the first photovoltaic output power to determine the second photovoltaic output power.

6. The output power adjustment method according to claim 1, characterized in that The step of using the first photovoltaic output power and the second photovoltaic output power to determine the energy storage charge-discharge power includes: Determine the difference between the second photovoltaic output power and the first photovoltaic output power as the energy storage charge-discharge power.

7. The output power adjustment method according to claim 1, wherein The step of adjusting the output power of the photovoltaic-storage integrated machine according to the energy storage charge-discharge power includes: Adjust the battery output power according to the energy storage charge-discharge power so that the sum of the battery output power and the second photovoltaic output power maintains a smooth power output.

8. An output power regulating device, characterized in that, The device is applied to the control end of a photovoltaic-storage integrated machine, and the device includes: A data acquisition module that obtains the measured DC voltage and the battery output power; The data analysis module determines the first photovoltaic output power based on the measured DC voltage and the battery output power, where the first photovoltaic output power is the photovoltaic output power before filtering; The data processing module performs filtering on the first photovoltaic output power to determine the second photovoltaic output power, where the second photovoltaic output power is the smoothly output photovoltaic output power after filtering; The power regulation module determines the energy storage charge and discharge power by using the first photovoltaic output power and the second photovoltaic output power, and adjusts the output power of the photovoltaic and energy storage integrated machine according to the energy storage charge and discharge power.

9. An electronic device, characterized in that, It includes a processor and a memory. The memory stores computer executable instructions that can be executed by the processor, and the processor executes the computer executable instructions to implement the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer executable instructions. When the computer executable instructions are called and executed by the processor, the computer executable instructions cause the processor to implement the method according to any one of claims 1 to 7.

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