Simulation method and system, device for power generation of photovoltaic system

Abstract

The application discloses a simulation method, system and device for power generation of a photovoltaic system. The method comprises the following steps: determining target data output to a support controller through a photovoltaic system model; sending the target data to the support controller and receiving tracking angle data generated by the support controller according to the target data; and processing the tracking angle data and irradiation data through the photovoltaic system model to determine simulation power generation of the photovoltaic system, wherein the irradiation data is generated by an irradiation data model running on a computer device. The application solves the technical problem that it is difficult to evaluate the power generation benefit of the support controller due to the fact that the prior art cannot accurately simulate the power generation of the photovoltaic system.

Description

Technical Field

[0001] This application relates to the field of photovoltaic tracking technology, and more specifically, to a method, system, and apparatus for simulating the power generation of a photovoltaic system. Background Technology

[0002] In recent years, the installed capacity of tracking brackets has been increasing year by year. With the active market for tracking brackets, various new energy companies have also released their own intelligent tracking bracket controllers. Although the products have been tested and certified by third-party certification companies, power plant owners still question the actual effectiveness and stability of the products. The products have not been recognized by customers, resulting in the slow promotion of intelligent tracking systems. Therefore, most power plants still use traditional astronomical tracking bracket controllers to control the tracking brackets.

[0003] For the reasons mentioned above, how to quickly verify the effectiveness of a product has become an urgent problem to be solved. In the photovoltaic field, although there is an authoritative photovoltaic system calculation tool, PVsyst, this tool cannot integrate the intelligent control algorithms of various new energy companies and cannot calculate the system power generation of power plants equipped with intelligent tracking controllers.

[0004] There is currently no effective solution to the above problems. Summary of the Invention

[0005] This application provides a method, system, and apparatus for simulating the power generation of a photovoltaic system, to at least solve the technical problem of difficulty in evaluating the power generation benefits of the support controller caused by the inability of existing technologies to accurately simulate the power generation of a photovoltaic system.

[0006] According to one aspect of the embodiments of this application, a method for simulating the power generation of a photovoltaic system is provided, comprising: determining target data to be output to a support controller through a photovoltaic system model, wherein the support controller is used to control a tracking support in the photovoltaic system, the tracking support is used to fix the photovoltaic modules in the photovoltaic system, and the photovoltaic system model runs on a computer device; sending the target data to the support controller and receiving tracking angle data generated by the support controller based on the target data; processing the tracking angle data and irradiance data through the photovoltaic system model to determine the simulated power generation of the photovoltaic system, wherein the irradiance data is generated by an irradiance data model running on the computer device.

[0007] Optionally, the photovoltaic system model includes: a photovoltaic module model, an inverter model, a transformer model, and a photovoltaic system loss model.

[0008] Optionally, determining the target data to be output to the support controller through a photovoltaic system model includes: acquiring the irradiation data generated by the irradiation data module; processing the irradiation data using the photovoltaic module model to obtain DC power generation; and determining the DC power generation as the target data.

[0009] Optionally, determining the target data to be output to the bracket controller through the photovoltaic system model further includes: acquiring the irradiation data generated by the irradiation data module; processing the irradiation data using the inverter model to obtain AC power generation; and determining the AC power generation as the target data.

[0010] Optionally, the irradiation data includes one of the following: simulated irradiation data, measured irradiation data, and typical meteorological year data.

[0011] Optionally, sending the target data to the support controller and receiving tracking angle data generated by the support controller based on the target data includes: sending the target data to the support controller via an interface box, and receiving the tracking angle data sent by the support controller via the interface box, wherein the interface box includes one of the following: a network cable and a data conversion device; the data conversion device is used to convert the target data from a first data format to a second data format, wherein the first data format is the data format when transmitting data according to the data transmission protocol supported by the computer device, and the second data format is the data format when transmitting data according to the data transmission protocol supported by the support controller; the data conversion device is also used to convert the tracking angle data from the second data format to the first data format.

[0012] According to another aspect of the embodiments of this application, a simulation system for the power generation of a photovoltaic system is also provided, comprising: a computer device, an interface box, and a support controller, wherein the computer device is connected to the interface box and is used to execute the above-described simulation method for the power generation of the photovoltaic system; the interface box is connected to the support controller and is used to realize communication between the computer device and the support controller; and the support controller is used to generate tracking angle data.

[0013] According to another aspect of the embodiments of this application, a non-volatile storage medium is also provided, the storage medium including a stored program, wherein the program, when running, controls the device where the storage medium is located to execute the above-mentioned method for simulating the power generation of the photovoltaic system.

[0014] According to another aspect of the embodiments of this application, an electronic device is also provided, including: a memory and a processor, wherein the processor is configured to run a program stored in the memory, wherein the program executes the above-described method for simulating the power generation of a photovoltaic system.

[0015] In this embodiment, the target data output to the support controller is determined through a photovoltaic system model. The support controller controls the tracking support in the photovoltaic system, and the tracking support is used to fix the photovoltaic modules in the photovoltaic system. The photovoltaic system model runs on a computer device. The target data is sent to the support controller, and the tracking angle data generated by the support controller based on the target data is received. The tracking angle data and irradiance data are processed by the photovoltaic system model to determine the simulated power generation of the photovoltaic system. The irradiance data is generated by an irradiance data model running on the computer device. By processing the tracking angle data and irradiance data output by the support controller through the photovoltaic system model to determine the simulated power generation of the photovoltaic system, the goal of accurately measuring the power generation of the photovoltaic system is achieved. This realizes the technical effect of effectively evaluating the power generation efficiency of the support controller, and solves the technical problem of difficulty in evaluating the power generation efficiency of the support controller caused by the inability of existing technologies to accurately simulate the power generation of photovoltaic systems. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a flowchart of a method for simulating the power generation of a photovoltaic system according to an embodiment of this application;

[0018] Figure 2 This is a flowchart of another method for simulating the power generation of a photovoltaic system according to an embodiment of this application;

[0019] Figure 3 This is a schematic diagram of a photovoltaic grid-connected power generation system according to an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the communication connection of a photovoltaic system power generation simulation system according to an embodiment of this application;

[0021] Figure 5 This is a structural diagram of a photovoltaic system power generation simulation system according to an embodiment of this application;

[0022] Figure 6 This is a structural diagram of a photovoltaic system power generation simulation device according to an embodiment of this application;

[0023] Figure 7 This is a hardware structure block diagram of a computer terminal (or electronic device) for simulating the power generation of a photovoltaic system according to an embodiment of this application. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0025] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0026] According to an embodiment of this application, a method embodiment for simulating the power generation of a photovoltaic system is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0027] Figure 1 This is a flowchart of a method for simulating the power generation of a photovoltaic system according to an embodiment of this application, such as... Figure 1 As shown, the method includes the following steps:

[0028] Step S102: Determine the target data to be output to the bracket controller through the photovoltaic system model. The bracket controller is used to control the tracking bracket in the photovoltaic system. The tracking bracket is used to fix the photovoltaic modules in the photovoltaic system. The photovoltaic system model runs on a computer device.

[0029] According to an optional embodiment of this application, the photovoltaic system model includes: a photovoltaic module model, an inverter model, a transformer model, and a photovoltaic system loss model. The photovoltaic system includes: photovoltaic modules, tracking brackets, a bracket controller, an inverter, and a transformer. The target data output to the bracket controller includes the DC power generation output by the photovoltaic modules or the AC power generation output by the inverter.

[0030] Step S104: Send the target data to the support controller and receive the tracking angle data generated by the support controller based on the target data.

[0031] According to another optional embodiment of this application, the DC power generation or AC power generation is sent to the support controller, and the support controller obtains the tracking angle data corresponding to the support controller according to its internal algorithm. Figure 3 This is a schematic diagram of a photovoltaic grid-connected power generation system according to an embodiment of this application. Figure 3 In this system, for example, the DC power generation of the photovoltaic module is used as the input value of the intelligent tracking algorithm in the bracket controller. The DC power generation determines the tracking angle of the bracket controller, which in turn determines the tracking angle of the tracking bracket. The tracking angle of the tracking bracket is equal to the rotation angle of the photovoltaic module. The rotation angle of the photovoltaic module determines the power generation of the inverter, which in turn determines the output angle of the bracket controller, thus forming a closed loop.

[0032] Step S106: The tracking angle data and irradiance data are processed through the photovoltaic system model to determine the simulated power generation of the photovoltaic system. The irradiance data is generated by the irradiance data model running on the computer equipment.

[0033] In some optional embodiments of this application, the photovoltaic system model, according to its own algorithm, converts the tracking angle data and irradiance data into numerical values ​​or vectors that match the algorithm, and calculates the simulated power generation using the following formula:

[0034]

[0035] Among them, H A E represents the total solar irradiance on a horizontal surface. S Solar radiation intensity under standard conditions; P AZ K represents the installed capacity of the photovoltaic system; K is the comprehensive efficiency coefficient, which is a correction coefficient that takes into account the influence of various factors, including: photovoltaic module type correction coefficient, photovoltaic module rotation angle, photovoltaic power generation system availability, solar utilization rate, inverter efficiency, collector line and step-up transformer losses, photovoltaic module surface contamination correction coefficient, and photovoltaic module conversion efficiency correction coefficient.

[0036] Based on the above steps, the tracking angle data and irradiance data output by the bracket controller are processed through the photovoltaic system model to determine the simulated power generation of the photovoltaic system. This achieves the goal of accurately measuring the power generation of the photovoltaic system and thus realizes the technical effect of effectively evaluating the power generation efficiency of the bracket controller.

[0037] According to an optional embodiment of this application, the photovoltaic system model includes: a photovoltaic module model, an inverter model, a transformer model, and a photovoltaic system loss model.

[0038] According to another optional embodiment of this application, the photovoltaic module model is determined by multiple parameters of the photovoltaic module in the photovoltaic system. These multiple parameters include, but are not limited to: maximum power Pmax: the maximum power that the power supply can achieve in a short time; optimal operating point current Imp: the current corresponding to the maximum output power Pmax; optimal operating point voltage Vmp: the voltage corresponding to the maximum output power; open circuit voltage Voc: the voltage value corresponding to the open circuit at both ends; short circuit current Isc: the current passing through both ends of the photonics plate under the output short circuit state; conversion efficiency η: photoelectric conversion efficiency, i.e., the ratio of maximum power Pmax to incident power; fill factor FF: the ratio of maximum power Pmax to the power generated by the ideal cell (generally between 0.5 and 0.8).

[0039] The inverter model is determined by multiple parameters of the inverter in the photovoltaic system. These parameters include, but are not limited to: rated output voltage (the rated voltage value output by the inverter when outputting rated current under specified input power conditions, with voltage fluctuation ranges of 220V±5% for single-phase and 380V±5% for three-phase); and output voltage stability. In a photovoltaic system, the electrical energy generated by the solar cells is first stored in batteries and then converted into 220V or 380V AC power by the inverter. However, the output voltage of the batteries varies considerably due to their own charging and discharging. For inverters of a certain rating, the variation in steady-state output voltage should not exceed ±5% of its rated value; the waveform distortion of the output voltage, for sinusoidal inverters, should specify the maximum allowable waveform distortion (or harmonic content), usually expressed as the total waveform distortion of the output voltage, and its value should not exceed 5%. Since high-order harmonic currents at various points in the inverter will generate additional losses such as eddy currents on inductive loads, if the waveform distortion of the inverter is too large, it will cause the load components to overheat severely, which is detrimental to the safety of electrical equipment and seriously affects the operating efficiency of the photovoltaic system; rated output frequency; load power factor; inverter efficiency; rated output capacity.

[0040] The transformer model is determined by multiple parameters of the transformer in the photovoltaic system. These parameters include, but are not limited to: rated capacity; rated voltage; rated current; no-load loss; no-load current; load loss; impedance voltage; number of phases and frequency; number of phases and frequency; temperature rise and cooling; and insulation level.

[0041] The photovoltaic system loss model is determined by multiple loss parameters in the photovoltaic system. These loss parameters include, but are not limited to: mismatch loss, which is the loss caused by the mismatch between individual components in the string and between different strings; inverter loss, which mainly includes: overload loss, overvoltage loss, power threshold loss, and voltage threshold loss; transformer loss; and cable loss, which is mainly the ohmic loss caused by voltage drop and needs to be determined based on the actual cable usage in the photovoltaic system.

[0042] In some optional embodiments of this application, the target data to be output to the support controller is determined by a photovoltaic system model, including the following steps: acquiring the irradiation data generated by the irradiation data module; processing the irradiation data using the photovoltaic module model to obtain DC power generation; and determining the DC power generation as the target data.

[0043] In some optional embodiments of this application, the target data to be output to the bracket controller is determined by the photovoltaic system model, which can be achieved by the following method: acquiring the irradiation data generated by the irradiation data module; processing the irradiation data using the inverter model to obtain AC power generation; and determining the AC power generation as the target data.

[0044] Irradiation data is acquired through the irradiation data module in the computer equipment; DC power generation or AC power generation is obtained using the photovoltaic system model, and the DC power generation or AC power generation is determined as the target data.

[0045] In one optional embodiment, the irradiation data includes one of the following: simulated irradiation data, measured irradiation data, and typical meteorological year data.

[0046] The granularity of irradiation data can be at the hour, minute, or second level.

[0047] According to some preferred embodiments of this application, the target data is sent to the support controller, and the tracking angle data generated by the support controller based on the target data is received. This is achieved by: sending the target data to the support controller through an interface box, and receiving the tracking angle data sent by the support controller through the interface box. The interface box includes one of the following: a network cable and a data conversion device. The data conversion device is used to convert the target data from a first data format to a second data format, wherein the first data format is the data format used when transmitting data according to a data transmission protocol supported by the computer device, and the second data format is the data format used when transmitting data according to a data transmission protocol supported by the support controller. The data conversion device is also used to convert the tracking angle data from the second data format to the first data format.

[0048] According to an optional embodiment of this application, the multiple interfaces in the interface box are switchable. Multiple software interfaces corresponding to the photovoltaic system model are defined. When the hardware interface in the interface box fails, the software interface of the photovoltaic system model is switched to another interface in the interface box that corresponds to the software interface.

[0049] Figure 4 This is a communication connection diagram of a photovoltaic system power generation simulation system according to an embodiment of this application, as shown below. Figure 4 As shown, the interface box is a data conversion device used to convert MODBUS to USB. The RS-485 bus is connected to the bracket controller, and the universal serial bus is connected to the computer equipment.

[0050] This application solves the problem that the power generation benefits of smart tracking products (between different smart tracking bracket controllers or between smart tracking bracket controllers and traditional astronomical tracking bracket controllers) cannot be evaluated in the current market, and achieves the technical effect of effectively evaluating the power generation benefits of bracket controllers.

[0051] Figure 2 This is a flowchart of another method for simulating the power generation of a photovoltaic system according to an embodiment of this application, such as... Figure 2 As shown, the method includes the following steps:

[0052] Step S1: The irradiation time series data unit inputs the irradiation data into the photovoltaic system model, and determines the DC power generation output to the bracket controller through the photovoltaic system model;

[0053] In step S2, the DC power generation enters the support controller through the interface box. The support controller receives the DC power generation and calculates the current intelligent tracking angle through its internal algorithm.

[0054] Step S3: The intelligent tracking angle is output to the photovoltaic system model of the computer device via the interface box;

[0055] Step S4: The photovoltaic system model combines the current irradiance data and the intelligent tracking angle to calculate the simulated power generation of the system.

[0056] This application provides support controller manufacturers with a simulation testing method for the development process of tracking algorithms. This application can also be used as a power plant parallel operation system (deploying a simulation system in the power plant to run in parallel with the actual tracking system) to monitor whether the actual tracking system of the power plant is operating normally.

[0057] According to some preferred embodiments of this application, firstly, a theoretical model of the photovoltaic system is built on a computer using software. Then, communication between the theoretical model and the support controller is established according to the communication rules of the support controller product. Finally, the computer writes the required input data to the support controller, which calculates the intelligent tracking angle based on the input data and feeds it back to the computer. The computer then uses the built photovoltaic system theoretical model to simulate and obtain the power generation under intelligent tracking mode. Using the same method, communication is established with the support controller of a traditional astronomical tracking system, and the power generation under the traditional astronomical tracking mode is simulated and calculated. By comparing the two, the gain of intelligent tracking can be obtained.

[0058] Figure 5 This is a structural diagram of a photovoltaic system power generation simulation system according to an embodiment of this application, such as... Figure 5 As shown, the system includes: a computer device 50, an interface box 52, and a support controller 54, wherein,

[0059] Computer device 50, connected to interface box 52, is used to execute a simulation method for the power generation of the photovoltaic system;

[0060] Interface box 52, connected to bracket controller 54, is used to enable communication between computer device 50 and bracket controller 54;

[0061] The bracket controller 54 is used to generate tracking angle data.

[0062] According to an optional embodiment of this application, the multiple interfaces in the interface box 52 are switchable, and multiple software interfaces corresponding to the photovoltaic system model are defined. When the hardware interface in the interface box 52 fails, the software interface of the photovoltaic system model is switched to another interface in the interface box 52 corresponding to the software interface.

[0063] Figure 6 This is a structural diagram of a photovoltaic system power generation simulation device according to an embodiment of this application, such as... Figure 6 As shown, the device includes:

[0064] The determination module 60 is used to determine the target data to be output to the bracket controller through the photovoltaic system model. The bracket controller is used to control the tracking bracket in the photovoltaic system, the tracking bracket is used to fix the photovoltaic modules in the photovoltaic system, and the photovoltaic system model runs on a computer device.

[0065] The transmission module 62 is used to send target data to the support controller and receive tracking angle data generated by the support controller based on the target data;

[0066] The processing module 64 is used to process the tracking angle data and irradiance data through the photovoltaic system model to determine the simulated power generation of the photovoltaic system. The irradiance data is generated by the irradiance data model running on the computer equipment.

[0067] It should be noted that the above Figure 6 The modules in the above can be program modules (e.g., a set of program instructions that implement a specific function) or hardware modules. For the latter, they can be represented in the following forms, but are not limited to these: each of the above modules is represented by a processor, or the functions of each of the above modules are implemented by a processor.

[0068] Figure 7 A hardware block diagram of a computer terminal (or mobile device) for simulating the power generation of a photovoltaic system is shown. Figure 7 As shown, a computer terminal 70 (or mobile device 70) may include one or more processors 702 (shown as 702a, 702b, ..., 702n in the figure) 702 (processor 702 may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.), a memory 704 for storing data, and a transmission module 707 for communication functions. In addition, it may also include: a display, an input / output interface (I / O interface), a universal serial bus (USB) port (which may be included as one of the ports of a BUS bus), a network interface, a power supply, and / or a camera. Those skilled in the art will understand that... Figure 7 The structure shown is for illustrative purposes only and does not limit the structure of the aforementioned electronic device. For example, the computer terminal 70 may also include... Figure 7 The more or fewer components shown, or having the same Figure 7 The different configurations shown.

[0069] It should be noted that the aforementioned one or more processors 702 and / or other data processing circuits are generally referred to herein as "data processing circuits". These data processing circuits may be embodied, in whole or in part, in software, hardware, firmware, or any other combination thereof. Furthermore, the data processing circuits may be a single, independent processing module, or may be integrated, in whole or in part, into any other element within the computer terminal 70 (or mobile device). As involved in the embodiments of this application, the data processing circuits serve as a processor control mechanism (e.g., selection of a variable resistor termination path connected to an interface).

[0070] The memory 704 can be used to store software programs and modules of application software, such as the program instructions / data storage device corresponding to the photovoltaic system power generation simulation method in this embodiment. The processor 702 executes various functional applications and data processing by running the software programs and modules stored in the memory 704, thereby realizing the aforementioned photovoltaic system power generation simulation method. The memory 704 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 704 may further include memory remotely located relative to the processor 702, and these remote memories can be connected to the computer terminal 70 via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0071] The transmission module 707 is used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by the communication provider of the computer terminal 70. In one example, the transmission module 707 includes a Network Interface Controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the transmission module 707 may be a Radio Frequency (RF) module, used for wireless communication with the Internet.

[0072] The display can be, for example, a touchscreen liquid crystal display (LCD) that allows the user to interact with the user interface of the computer terminal 70 (or mobile device).

[0073] It should be noted here that, in some optional embodiments, the above... Figure 7 The computer device (or electronic device) shown may include hardware elements (including circuitry), software elements (including computer code stored on a computer-readable medium), or a combination of both hardware and software elements. It should be noted that... Figure 7 This is only one instance of a particular specific instance, and is intended to illustrate the types of components that may exist in the aforementioned computer equipment (or electronic equipment).

[0074] It should be noted that, Figure 7 The electronic device shown is used to perform Figure 1 The simulation method for the power generation of the photovoltaic system shown above also applies to this electronic device, and will not be repeated here.

[0075] This application also provides a non-volatile storage medium, which includes a stored program, wherein the program, when running, controls the device where the storage medium is located to execute the above-mentioned method for simulating the power generation of the photovoltaic system.

[0076] The non-volatile storage medium performs the following functions: determining the target data to be output to the bracket controller through a photovoltaic system model, wherein the bracket controller is used to control the tracking brackets in the photovoltaic system, the tracking brackets are used to fix the photovoltaic modules in the photovoltaic system, and the photovoltaic system model runs on a computer device; sending the target data to the bracket controller and receiving the tracking angle data generated by the bracket controller based on the target data; processing the tracking angle data and irradiance data through the photovoltaic system model to determine the simulated power generation of the photovoltaic system, wherein the irradiance data is generated by an irradiance data model running on the computer device.

[0077] This application also provides an electronic device, including: a memory and a processor, wherein the processor is used to run a program stored in the memory, wherein the program executes the above-described method for simulating the power generation of a photovoltaic system.

[0078] The processor is used to run programs that perform the following functions: determine target data to be output to the bracket controller through a photovoltaic system model, wherein the bracket controller controls the tracking brackets in the photovoltaic system, the tracking brackets are used to fix the photovoltaic modules in the photovoltaic system, and the photovoltaic system model runs on a computer device; send the target data to the bracket controller and receive the tracking angle data generated by the bracket controller based on the target data; process the tracking angle data and irradiance data through the photovoltaic system model to determine the simulated power generation of the photovoltaic system, wherein the irradiance data is generated by an irradiance data model running on the computer device.

[0079] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0080] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0081] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0082] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0083] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0084] If the integrated unit is implemented as 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 this application, in essence, or the part that contributes to related technologies, or all or part of the 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 to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0085] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A method for simulating the power generation of a photovoltaic system, characterized in that, include: The target data to be output to the bracket controller is determined by the photovoltaic system model. The bracket controller is used to control the tracking bracket in the photovoltaic system. The tracking bracket is used to fix the photovoltaic modules in the photovoltaic system. The photovoltaic system model runs on a computer device and includes: a photovoltaic module model, an inverter model, a transformer model, and a photovoltaic system loss model. The target data is sent to the support controller, and the tracking angle data generated by the support controller based on the target data is received. The tracking angle data and irradiance data are processed by the photovoltaic system model to determine the simulated power generation of the photovoltaic system, wherein the irradiance data is generated by the irradiance data model running on the computer device. Determining the target data to be output to the support controller using a photovoltaic system model includes: acquiring the irradiation data generated by the irradiation data model; processing the irradiation data using the photovoltaic module model to obtain DC power generation; and determining the DC power generation as the target data; or... The irradiation data generated by the irradiation data model is obtained; the irradiation data is processed using the inverter model to obtain the AC power generation; and the AC power generation is determined as the target data.

2. The method according to claim 1, characterized in that, The irradiation data includes one of the following: simulated irradiation data, measured irradiation data, and typical meteorological year data.

3. The method according to claim 1, characterized in that, The target data is sent to the support controller, and the tracking angle data generated by the support controller based on the target data is received, including: The target data is sent to the support controller through the interface box, and the tracking angle data sent by the support controller is received through the interface box, wherein the interface box includes one of the following: a network cable and a data conversion device; The data conversion device is used to convert the target data from a first data format to a second data format, wherein the first data format is the data format when transmitting data according to the data transmission protocol supported by the computer device, and the second data format is the data format when transmitting data according to the data transmission protocol supported by the support controller; The data conversion device is also used to convert the tracking angle data from the second data format to the first data format.

4. A simulation system for the power generation of a photovoltaic system, characterized in that, include: Computer equipment, interface boxes, and rack controllers, among which, The computer device is connected to the interface box and is used to execute the simulation method for the power generation of the photovoltaic system according to any one of claims 1 to 3. The interface box is connected to the bracket controller and is used to enable communication between the computer device and the bracket controller; The bracket controller is used to generate tracking angle data.

5. A device for simulating the power generation of a photovoltaic system, characterized in that, include: The determination module is used to determine the target data to be output to the bracket controller through the photovoltaic system model. The bracket controller is used to control the tracking bracket in the photovoltaic system. The tracking bracket is used to fix the photovoltaic modules in the photovoltaic system. The photovoltaic system model runs on a computer device and includes: a photovoltaic module model, an inverter model, a transformer model, and a photovoltaic system loss model. The transmission module is used to send the target data to the support controller and receive the tracking angle data generated by the support controller based on the target data; The processing module is used to process the tracking angle data and irradiance data through the photovoltaic system model to determine the simulated power generation of the photovoltaic system, wherein the irradiance data is generated by the irradiance data model running on the computer device; The determining module is further configured to perform the following steps: acquiring the irradiation data generated by the irradiation data model; processing the irradiation data using the photovoltaic module model to obtain DC power generation; determining the DC power generation as the target data; or, acquiring the irradiation data generated by the irradiation data model; processing the irradiation data using the inverter model to obtain AC power generation; and determining the AC power generation as the target data.

6. A non-volatile storage medium, characterized in that, The non-volatile storage medium includes a stored program, wherein, when the program is executed, the device containing the non-volatile storage medium is controlled to perform a simulation method for the power generation of the photovoltaic system according to any one of claims 1 to 3.

7. An electronic device, characterized in that, include: A memory and a processor, the processor being configured to run a program stored in the memory, wherein the program, when running, executes a method for simulating the power generation of a photovoltaic system according to any one of claims 1 to 3.

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