Wind power grid-connected power generation analogue simulation system

Abstract

The invention relates to a wind power grid-connected power generation analogue simulation system, which comprises a wind power grid-connected power generation analogue simulation method, and the method comprises the following steps: determining an individual dynamic electric energy output curve of a wind power generation source according to previous data; accumulating a plurality of individual dynamic electric energy output curves to obtain a predicted electric energy total output curve; comparing the predicted electric energy total output curve with the power grid dynamic electric energy demand curve in the corresponding time period; and determining an actual electric energy total output curve of the wind power generation source according to a comparison result, wherein a difference value between the actual electric energy total output curve and the dynamic electric energy demand curve of the power grid is a fixed value or fluctuates in an allowable range, and adjusting the actual electric energy total output curve according to the current stored electric energy and the predicted electric energy emission quantity of the wind power generation source. According to the wind power grid-connected power generation analogue simulation method and analogue simulation system disclosed by the invention, grid connection of a plurality of wind power plants is predicted in a segmented prediction mode, so that the productivity output of the wind power plants can be more fully utilized on the premise of maintaining the stability of a power grid.

Description

Technical Field

[0001] The present invention relates to the technical field of data processing, and in particular to a wind power grid-connected power generation simulation method and a simulation system. Background Art

[0002] The basic principle of wind power generation is to use a wind turbine to convert wind energy into mechanical energy, which in turn drives the generator to generate electricity. When the wind speed reaches a certain level (such as a breeze speed of 3m / s), the wind turbine starts to rotate, thereby driving the generator to generate electricity.

[0003] As a new energy source, wind power generation is increasing in proportion to the grid with the advancement of technology and the continuous expansion of scale. Research on wind power grid connection is ongoing. A more suitable way to connect to the grid is to use a storage power station as a grid connection intermediary to stabilize the power output of the grid connection and keep it synchronized with the operating parameters of the grid. In addition, for storage power stations, there is also a way to combine photovoltaic power generation to supplement the storage power station, so that the power output of the grid connection can be further stabilized.

[0004] In addition, since wind power generation is greatly restricted by site conditions, distributed energy is currently being used to handle it, but this requires coordination among multiple parties, as the output of each wind power plant is unstable and cannot be connected to the grid relying on fixed parameters.

[0005] Multi-party coordination needs to focus on the unstable output of each wind power plant and the consumption changes of the power grid. At the same time, it is necessary to reserve backup power to deal with uncontrollable changes. How to achieve this requires further research. Summary of the invention

[0006] The present invention provides a wind power grid-connected power generation simulation method and simulation system, which predicts the grid connection of multiple wind power plants by means of segmented prediction, so as to more fully utilize the output capacity of wind power plants while maintaining the stability of the power grid.

[0007] The above object of the present invention is achieved through the following technical solutions: In a first aspect, the present invention provides a wind power grid-connected power generation simulation method, comprising: Determine individual dynamic power output curves of wind power sources based on past data, where the number of wind power sources is multiple; Accumulate multiple individual dynamic power output curves to obtain a predicted total power output curve; Compare the predicted total power output curve in the corresponding time period with the dynamic power demand curve of the power grid to obtain a comparison result; Determine the actual total power output curve of the wind power source according to the comparison result, and the difference between the actual total power output curve and the dynamic power demand curve of the power grid is a constant value or the difference fluctuates within an allowable range; The actual total power output curve is adjusted according to the current stored power amount and the predicted power output of the wind power generation source.

[0008] In a possible implementation manner of the first aspect, determining an actual total electric energy output curve of the wind power generation source according to the comparison result includes: Calculate the maximum and minimum differences between the predicted total power output curve and the power grid dynamic power demand curve within the corresponding time period; Draw a first reference line and a second reference line using the maximum difference and the minimum difference respectively, and predict that the total electric energy output curve is between the first reference line and the second reference line; A third reference line is drawn between the first reference line and the second reference line, and the third reference line and the predicted total electric energy output curve form an electric power surplus area and an electric power deficit area; Adjust the third reference line in the vertical direction so that the power-abundant area is greater than or equal to the power-deficient area; The adjusted third reference line is used as the actual total electric energy output curve.

[0009] In a possible implementation of the first aspect, the area of ​​the power-abundant region is 1.1-1.2 times the area of ​​the power-deficient region; The currently stored electric energy of a set number or a set proportion of wind power generation sources within a specified range does not participate in the generation of the corresponding individual dynamic electric energy output curve.

[0010] In a possible implementation of the first aspect, adjusting the actual total power output curve according to the current stored power amount and the predicted power generation amount of the wind power generation source includes: Determine the order of arrangement of power-abundant regions and power-deficient regions, and the regional areas of power-abundant regions and power-deficient regions; The power-rich areas and power-deficient areas in the sequence are grouped according to the arrangement order, the area of ​​the power-rich areas and the area of ​​the power-deficient areas, and the difference between the area of ​​the power-rich areas and the area of ​​the power-deficient areas in each group is within the allowable range; Calculate the stability of the grouping of power-rich areas and power-deficient areas and obtain stability results; Adjust the actual total electrical energy output curve based on the stability results.

[0011] In a possible implementation of the first aspect, when the first area in the sequential sequence of a group is a power shortage area, calculating the stability of the grouping of power-rich areas and power shortage areas includes: Comparing the difference between the total remaining power of the wind power generation source and the area of ​​the power shortage area; When the difference is greater than zero, the actual total power output curve for the corresponding time period remains unchanged; When the difference is less than zero, external coordinated input is requested or the actual total power output curve of the corresponding time period is lowered so that the difference between the total remaining power of the wind power generation source and the area of ​​the power gap area is greater than or equal to zero.

[0012] In a possible implementation of the first aspect, when the power-abundant regions and the power-deficient regions in the sequential sequence are grouped, the first region in a group is the power-abundant region; When there is an excess power gap area, external coordinated input is used to make up for it.

[0013] In a possible implementation of the first aspect, when the first region in the sequential sequence of a group is a power-rich region, the area of ​​the power-rich region is greater than the area of ​​an adjacent power-deficient region; The accumulated value of the difference between the area of ​​the power-rich region and the area of ​​the adjacent power-deficient region and the area of ​​the remaining power-rich region is greater than the accumulated value of the area of ​​the remaining power-deficient region.

[0014] In a second aspect, the present invention provides a wind power grid-connected power generation simulation device, comprising: A power generation prediction unit, used to determine an individual dynamic power output curve of a wind power generation source according to past data, wherein the number of wind power generation sources is multiple; An individual accumulation unit, used for accumulating a plurality of individual dynamic power output curves to obtain a predicted total power output curve; A comparison processing unit, used to compare the predicted total power output curve in the corresponding time period with the dynamic power demand curve of the power grid to obtain a comparison result; A first result output unit is used to determine an actual total power output curve of the wind power generation source according to the comparison result, wherein the difference between the actual total power output curve and the dynamic power demand curve of the power grid is a constant value or the difference fluctuates within an allowable range; The result checking unit is used to adjust the actual total electric energy output curve according to the current stored electric energy and the predicted electric energy output of the wind power generation source.

[0015] In a third aspect, the present invention provides a wind power grid-connected power generation simulation system, the system comprising: one or more memories for storing instructions; and One or more processors, used to call and run the instructions from the memory to execute the method as described in the first aspect and any possible implementation of the first aspect.

[0016] In a fourth aspect, the present invention provides a computer-readable storage medium, the computer-readable storage medium comprising: Program, when the program is executed by a processor, the method described in the first aspect and any possible implementation of the first aspect is executed.

[0017] In a fifth aspect, the present invention provides a computer program product, comprising program instructions, and when the program instructions are executed by a computing device, the method described in the first aspect and any possible implementation of the first aspect is executed.

[0018] In a sixth aspect, the present invention provides a chip system comprising a processor for implementing the functions involved in the above aspects, for example, generating, receiving, sending, or processing the data and / or information involved in the above methods.

[0019] The chip system may be composed of chips, or may include chips and other discrete devices.

[0020] In a possible design, the chip system also includes a memory, which is used to store necessary program instructions and data. The processor and the memory can be decoupled and respectively set on different devices, connected by wired or wireless means, or the processor and the memory can also be coupled on the same device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the steps of a wind power grid-connected power generation simulation method provided by the present invention.

[0022] Figure 2 It is a schematic diagram of an individual dynamic electric energy output curve provided by the present invention.

[0023] Figure 3 It is a schematic diagram of a predicted total electric energy output curve provided by the present invention.

[0024] Figure 4 It is a schematic diagram of a principle for determining the range of a third reference line provided by the present invention.

[0025] Figure 5 It is a principle schematic diagram of obtaining power-rich areas and power-deficient areas provided by the present invention.

[0026] Figure 6 It is a schematic diagram of the principle of adjusting the actual total output curve of electric energy provided by the present invention. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0028] The present invention discloses a wind power grid-connected power generation simulation method. In some examples, please refer to Figure 1 The wind power grid-connected power generation simulation method disclosed in the present invention comprises the following steps: S101, determining an individual dynamic power output curve of a wind power source according to previous data, where the number of wind power sources is multiple; S102, accumulating a plurality of individual dynamic power output curves to obtain a predicted total power output curve; S103, comparing the predicted total power output curve in the corresponding time period with the dynamic power demand curve of the power grid to obtain a comparison result; S104, determining an actual total power output curve of the wind power source according to the comparison result, wherein the difference between the actual total power output curve and the dynamic power demand curve of the power grid is a constant value or the difference fluctuates within an allowable range; S105, adjusting the actual total power output curve according to the current stored power amount and the predicted power generation amount of the wind power generation source.

[0029] The technical solution disclosed in the present invention is applied to multiple wind power sources (wind power plants) in a region. The electric energy output by these wind power sources is consumed in one region at the same time, or consumed in one region within a certain period of time. Of course, the electric energy output by these wind power sources can also participate in electric energy allocation. The power curve when participating in electric energy allocation is basically a horizontal straight line, which is not within the scope of discussion of the present invention.

[0030] In step S101, the individual dynamic power output curve of the wind power generation source is first determined based on previous data ( Figure 2 As shown in FIG. 1 ), the number of wind power sources is multiple. There are two specific implementation methods here. The first is to determine the individual dynamic power output curve of the wind power source according to the query method, and the second is to input the parameters obtained by the sensor into the prediction model, and then obtain the individual dynamic power output curve of the wind power source.

[0031] The individual dynamic power output curve of a wind power source refers to the power output that varies over time.

[0032] In step S102, multiple individual dynamic power output curves are accumulated to obtain a predicted total power output curve ( Figure 3 Then, in step S103, the predicted total power output curve in the corresponding time period is compared with the dynamic power demand curve of the power grid to obtain a comparison result.

[0033] Then in step S104, the actual total power output curve of the wind power generation source is determined according to the comparison result, and the difference between the actual total power output curve and the dynamic power demand curve of the power grid is a constant value or the difference fluctuates within an allowable range.

[0034] Specifically, in the present invention, the shape of the actual total electric energy output curve and the dynamic electric energy demand curve of the power grid need to be as consistent as possible. By stabilizing the difference, other input sources in the power grid can output stably, such as thermal power, which improves the stability of the power grid to a certain extent.

[0035] Finally, in step S105, the actual total power output curve is adjusted according to the current stored power amount and the predicted power generation amount of the wind power generation source.

[0036] The purpose of the adjustment is to make the actual total power output curve consistent with the current stored power and the predicted power output, so that no power gap will occur. During the adjustment process, a certain amount of power overflow can be allowed, which can be transferred to the energy storage power station for storage or abandoned. Because the stability of the power grid must be guaranteed first when connecting to the grid, a certain amount of power abandonment is allowed.

[0037] In general, the wind power grid-connected power generation simulation method provided by the present invention can dynamically adjust the grid-connected behavior of the wind power source according to the actual power demand. This method can predict the grid-connected behavior within a time period in advance, thereby realizing the full utilization of the wind power source. The purpose of the prediction is to find the power gap, so that in the time period corresponding to the power gap, pre-measures can be taken to solve the problem and avoid power grid oscillation.

[0038] In some examples, the actual total power output curve of the wind power generation source is determined according to the comparison result in the following manner: S201, calculating the maximum difference and the minimum difference between the predicted total power output curve and the power grid dynamic power demand curve in the corresponding time period; S202, using the maximum difference and the minimum difference to draw a first reference line and a second reference line respectively, and predicting that the total electric energy output curve is between the first reference line and the second reference line; S203, drawing a third reference line between the first reference line and the second reference line, the third reference line and the predicted total electric energy output curve forming a power surplus area and a power deficit area; S204, adjusting the third reference line in the vertical direction so that the power-rich area is greater than or equal to the power-deficient area; S205: Use the adjusted third reference line as the actual total electric energy output curve.

[0039] In step S201 to step S205, please refer to Figure 4, is to determine the range of the third reference line by the maximum difference and the minimum difference, and then use the method of translating the dynamic power demand curve of the power grid to generate the third reference line. At this time, the third reference line and the predicted total power output curve form a power-rich area and a power-deficit area. Figure 5 As shown, for power-abundant areas and power-deficient areas, appropriate measures can be designed to fully utilize the output of wind power sources, which can effectively reduce grid fluctuations. Because when the output of wind power sources can meet the design requirements, it means that the stability of the node is relatively high.

[0040] In some possible implementations, the area of ​​the power-surplus region is 1.1-1.2 times the area of ​​the power-deficit region. At this time, the excess electricity is left in the energy storage power station and used as backup power. When the actual power generation of the wind power source is lower than the predicted power generation or an emergency occurs, the backup power is used to fill the gap.

[0041] In some possible implementations, a set number or a set proportion of currently stored electric energy of wind power sources within a specified range does not participate in the generation of the corresponding individual dynamic electric energy output curve, and the currently stored electric energy of these wind power sources is also used as backup power.

[0042] In some examples, the actual total power output curve is adjusted according to the current stored power amount and the predicted power output of the wind power generation source in a specific manner as follows: S301, determining the order of arrangement of power-abundant regions and power-deficient regions, the area of ​​the power-abundant regions, and the area of ​​the power-deficient regions; S302, grouping the power-rich areas and the power-deficient areas in the sequence according to the arrangement order, the area of ​​the power-rich areas and the area of ​​the power-deficient areas, and the difference between the area of ​​the power-rich areas and the area of ​​the power-deficient areas in each group is within an allowable range; S303, calculating the stability of the grouping of power-abundant areas and power-deficient areas to obtain stability results; S304, adjusting the actual total electric energy output curve according to the stability result.

[0043] The contents of step S301 to step S304 are to process the power-sufficient area and the power-deficient area as units, because it is easier to divide the entire time period into multiple small units and ensure the stability of each small unit than to process the entire time period as a unit.

[0044] The solution of the present invention is that the difference between the area of ​​the power-rich area and the area of ​​the power-deficient area in each group is within the allowable range. Then the stability of the grouping of the power-rich area and the power-deficient area is calculated, the stability result is obtained, and finally the actual total power output curve is adjusted according to the stability result.

[0045] The adjustment at this time will divide the actual total power output curve into sections, and adjust the section that needs to be adjusted (increase or decrease), such as Figure 6 shown.

[0046] When the first region in the sequential sequence of a group is a power deficit region, the stability of the grouping of power-rich regions and power deficit regions is calculated as follows: Comparing the difference between the total remaining power of the wind power generation source and the area of ​​the power shortage area; When the difference is greater than zero, the actual total power output curve for the corresponding time period remains unchanged; When the difference is less than zero, external coordinated input is requested or the actual total power output curve of the corresponding time period is lowered so that the difference between the total remaining power of the wind power generation source and the area of ​​the power gap area is greater than or equal to zero.

[0047] This method is to treat the first area in the sequential sequence of a group as a power gap area and process it separately. The processing method is to request external coordinated input or lower the actual total electric energy output curve of the corresponding time period. Because if a power gap occurs at this time, the subsequent power-rich areas and power gap areas will be restricted in processing because the gap is always difficult to fill.

[0048] In some possible implementations, when the power-rich areas and power-deficient areas in the sequential sequence are grouped, the first area in a group is the power-rich area; When there is an excess power gap area, external coordinated input is used to make up for it.

[0049] In some possible implementations, when the first region in a sequential sequence in a group is a power-rich region, the area of ​​the power-rich region is larger than the area of ​​an adjacent power-deficit region, and it is also required that the difference between the area of ​​the power-rich region and the area of ​​the adjacent power-deficit region and the cumulative value of the area of ​​the remaining power-rich regions is greater than the cumulative value of the area of ​​the remaining power-deficit regions.

[0050] That is to say, the first power-rich area in the sequence of a group is required to reserve sufficient surplus electricity to cope with possible power shortages in the future.

[0051] The present invention also provides a wind power grid-connected power generation simulation device, comprising: A power generation prediction unit, used to determine an individual dynamic power output curve of a wind power generation source according to past data, wherein the number of wind power generation sources is multiple; An individual accumulation unit, used for accumulating a plurality of individual dynamic power output curves to obtain a predicted total power output curve; A comparison processing unit, used to compare the predicted total power output curve in the corresponding time period with the dynamic power demand curve of the power grid to obtain a comparison result; A first result output unit is used to determine an actual total power output curve of the wind power generation source according to the comparison result, wherein the difference between the actual total power output curve and the dynamic power demand curve of the power grid is a constant value or the difference fluctuates within an allowable range; The result checking unit is used to adjust the actual total electric energy output curve according to the current stored electric energy and the predicted electric energy output of the wind power generation source.

[0052] Furthermore, it also includes: The first calculation unit is used to calculate the maximum difference and the minimum difference between the predicted total power output curve and the power grid dynamic power demand curve in the corresponding time period; A first reference line drawing unit, used to draw a first reference line and a second reference line using a maximum difference and a minimum difference respectively, and predict that the total electric energy output curve is located between the first reference line and the second reference line; A second reference line drawing unit is used to draw a third reference line between the first reference line and the second reference line, wherein the third reference line and the predicted total electric energy output curve form a power surplus area and a power deficit area; A reference line adjustment unit, used for adjusting the third reference line in the vertical direction so that the power surplus area is greater than or equal to the power deficit area; The second result output unit is used to use the adjusted third reference line as the actual total electric energy output curve.

[0053] Furthermore, the area of ​​power-abundant regions is 1.1-1.2 times the area of ​​power-deficient regions; The currently stored electric energy of a set number or a set proportion of wind power generation sources within a specified range does not participate in the generation of the corresponding individual dynamic electric energy output curve.

[0054] Furthermore, it also includes: An information determination unit, used to determine the arrangement order of the power-rich areas and the power-deficient areas, the area of ​​the power-rich areas, and the area of ​​the power-deficient areas; A grouping unit, used for grouping the power-rich areas and the power-deficient areas in the sequence according to the arrangement order, the area of ​​the power-rich areas and the area of ​​the power-deficient areas, wherein the difference between the area of ​​the power-rich areas and the area of ​​the power-deficient areas in each group is within an allowable range; The second calculation unit is used to calculate the stability of the grouping of the power-rich area and the power-deficient area to obtain a stability result; The adjustment unit is used to adjust the actual total electric energy output curve according to the stability result.

[0055] Furthermore, it also includes: A comparison unit, used for comparing the difference between the total remaining power of the wind power generation source and the area of ​​the power shortage area; When the difference is greater than zero, the actual total power output curve for the corresponding time period remains unchanged; When the difference is less than zero, external coordinated input is requested or the actual total power output curve of the corresponding time period is lowered so that the difference between the total remaining power of the wind power generation source and the area of ​​the power gap area is greater than or equal to zero.

[0056] Furthermore, when the power-abundant regions and power-deficient regions in the sequential sequence are grouped, the first region in a group is the power-abundant region; When there is an excess power gap area, external coordinated input is used to make up for it.

[0057] Further, when the first region in the sequential sequence of a group is a power-rich region, the area of ​​the power-rich region is greater than the area of ​​the adjacent power-deficient region; The accumulated value of the difference between the area of ​​the power-rich region and the area of ​​the adjacent power-deficient region and the area of ​​the remaining power-rich region is greater than the accumulated value of the area of ​​the remaining power-deficient region.

[0058] In one example, the unit in any of the above devices can be one or more integrated circuits configured to implement the above methods, such as: one or more application specific integrated circuits (ASICs), or, one or more digital signal processors (DSPs), or, one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms.

[0059] For another example, when the units in the device can be implemented in the form of a processing element scheduling program, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call a program. For another example, these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0060] Various objects such as various messages / information / equipment / network elements / systems / devices / actions / operations / processes / concepts that may appear in the present invention are named. It can be understood that these specific names do not constitute a limitation on the relevant objects, and the given names may change with factors such as scenarios, contexts or usage habits. The understanding of the technical meaning of the technical terms in the present invention should be mainly determined from the functions and technical effects embodied / executed in the technical scheme.

[0061] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0062] In the several embodiments provided by the present invention, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0063] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0064] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0065] It should also be understood that in various embodiments of the present invention, the first, second, etc. are only used to indicate that multiple objects are different. For example, the first time window and the second time window are only used to indicate different time windows. They should not have any impact on the time window itself, and the first, second, etc. mentioned above should not impose any limitations on the embodiments of the present invention.

[0066] It should also be understood that in the various embodiments of the present invention, unless otherwise specified or there is any logical conflict, the terms and / or descriptions between the different embodiments are consistent and can be referenced to each other, and the technical features in the different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0067] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a computer-readable storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned computer-readable storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0068] The present invention also provides a wind power grid-connected power generation simulation system, the system comprising: one or more memories for storing instructions; and One or more processors are used to call and run the instructions from the memory to execute the method as described above.

[0069] The present invention also provides a computer program product, which includes instructions. When the instructions are executed, the terminal device and the network device perform operations of the terminal device and the network device corresponding to the above method.

[0070] The present invention also provides a chip system, which includes a processor for implementing the functions involved in the above content, such as generating, receiving, sending, or processing the data and / or information involved in the above method.

[0071] The chip system may be composed of chips, or may include chips and other discrete devices.

[0072] The processor mentioned in any of the above places can be a CPU, a microprocessor, an ASIC, or one or more integrated circuits for executing programs for controlling the above-mentioned feedback information transmission method.

[0073] In a possible design, the chip system also includes a memory, which is used to store necessary program instructions and data. The processor and the memory can be decoupled and respectively set on different devices, connected by wire or wireless means to support the chip system to implement various functions in the above embodiments. Alternatively, the processor and the memory can also be coupled on the same device.

[0074] Optionally, the computer instructions are stored in a memory.

[0075] Optionally, the memory is a storage unit within the chip, such as a register, a cache, etc. The memory can also be a storage unit within the terminal located outside the chip, such as a ROM or other types of static storage devices that can store static information and instructions, RAM, etc.

[0076] It can be understood that the memory in the present invention can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories.

[0077] The non-volatile memory may be a ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), or a flash memory.

[0078] The volatile memory may be a RAM, which is used as an external cache. There are many different types of RAM, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct memory bus RAM.

[0079] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wind power grid-connected power generation simulation method, characterized in that: include: Determine individual dynamic power output curves of wind power sources based on past data, where the number of wind power sources is multiple; Accumulate multiple individual dynamic power output curves to obtain a predicted total power output curve; Compare the predicted total power output curve in the corresponding time period with the dynamic power demand curve of the power grid to obtain a comparison result; Determine the actual total power output curve of the wind power source according to the comparison result, and the difference between the actual total power output curve and the dynamic power demand curve of the power grid is a constant value or the difference fluctuates within an allowable range; The actual total power output curve is adjusted according to the current stored power amount and the predicted power output of the wind power generation source.

2. The wind power grid-connected power generation simulation method according to claim 1, characterized in that: According to the comparison results, the actual total power output curve of the wind power source is determined as follows: Calculate the maximum and minimum differences between the predicted total power output curve and the power grid dynamic power demand curve within the corresponding time period; Draw a first reference line and a second reference line using the maximum difference and the minimum difference respectively, and predict that the total electric energy output curve is between the first reference line and the second reference line; A third reference line is drawn between the first reference line and the second reference line, and the third reference line and the predicted total electric energy output curve form an electric power surplus area and an electric power deficit area; Adjust the third reference line in the vertical direction so that the power-abundant area is greater than or equal to the power-deficient area; The adjusted third reference line is used as the actual total electric energy output curve.

3. The wind power grid-connected power generation simulation method according to claim 2, characterized in that: The area of ​​power-abundant regions is 1.1-1.2 times that of power-deficient regions; The currently stored electric energy of a set number or a set proportion of wind power generation sources within a specified range does not participate in the generation of the corresponding individual dynamic electric energy output curve.

4. The wind power grid-connected power generation simulation method according to claim 2 or 3, characterized in that: Adjusting the actual total power output curve according to the current stored power amount and predicted power output of the wind power source includes: Determine the order of arrangement of power-abundant regions and power-deficient regions, and the regional areas of power-abundant regions and power-deficient regions; The power-rich areas and power-deficient areas in the sequence are grouped according to the arrangement order, the area of ​​the power-rich areas and the area of ​​the power-deficient areas, and the difference between the area of ​​the power-rich areas and the area of ​​the power-deficient areas in each group is within the allowable range; Calculate the stability of the grouping of power-rich areas and power-deficient areas and obtain stability results; Adjust the actual total electrical energy output curve based on the stability results.

5. The wind power grid-connected power generation simulation method according to claim 4, characterized in that: When the first region in the sequence of a group is a power deficit region, the stability of calculating the grouping of power-rich regions and power deficit regions includes: Comparing the difference between the total remaining power of the wind power generation source and the area of ​​the power shortage area; When the difference is greater than zero, the actual total power output curve for the corresponding time period remains unchanged; When the difference is less than zero, external coordinated input is requested or the actual total power output curve of the corresponding time period is lowered so that the difference between the total remaining power of the wind power generation source and the area of ​​the power gap area is greater than or equal to zero.

6. The wind power grid-connected power generation simulation method according to claim 4, characterized in that: When the power-abundant regions and power-deficient regions in the sequence are grouped, the first region in a group is the power-abundant region; When there is an excess power gap area, external coordinated input is used to make up for it.

7. The wind power grid-connected power generation simulation method according to claim 6, characterized in that: When the first region in the sequence of a group is a power-rich region, the area of ​​the power-rich region is greater than the area of ​​the adjacent power-deficient region; The accumulated value of the difference between the area of ​​the power-rich region and the area of ​​the adjacent power-deficient region and the area of ​​the remaining power-rich region is greater than the accumulated value of the area of ​​the remaining power-deficient region.

8. A wind power grid-connected power generation simulation device, characterized in that: include: A power generation prediction unit, used to determine an individual dynamic power output curve of a wind power generation source according to past data, wherein the number of wind power generation sources is multiple; An individual accumulation unit, used for accumulating a plurality of individual dynamic power output curves to obtain a predicted total power output curve; A comparison processing unit, used to compare the predicted total power output curve in the corresponding time period with the dynamic power demand curve of the power grid to obtain a comparison result; A first result output unit is used to determine an actual total power output curve of the wind power generation source according to the comparison result, wherein the difference between the actual total power output curve and the dynamic power demand curve of the power grid is a constant value or the difference fluctuates within an allowable range; The result checking unit is used to adjust the actual total electric energy output curve according to the current stored electric energy and the predicted electric energy output of the wind power generation source.

9. A wind power grid-connected power generation simulation system, characterized in that: The system comprises: one or more memories for storing instructions; and One or more processors, configured to call and execute the instructions from the memory to perform 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 comprises: The program, when the program is executed by a processor, the method according to any one of claims 1 to 7 is executed.

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