A method, device and medium for correcting a contract electric quantity curve

Abstract

The present application discloses a contract electricity curve correction method, device and medium thereof, which relates to the field of electrical engineering technology, and is used to correct the contract electricity curve. In view of the problem of unbalanced funds generated when settling the current contract electricity curve, a contract electricity curve correction method is provided, including: obtaining an actual load curve and a preset first threshold; determining the deviation percentage between the actual electricity consumption and the contract electricity in each trading period according to the actual load curve; correcting each of the deviation percentages according to the first threshold; and determining the contract electricity curve according to the corrected deviation percentage. Since the first threshold is determined based on the historical settlement information of the power grid, it can reflect the settlement demand of the power grid to reduce the amount of unbalanced funds, so the contract electricity curve corrected by the first threshold reduces the unbalanced funds, which is beneficial to the settlement of the contract electricity and maintains the stability of the power market.

Description

Technical Field

[0001] The present application relates to the field of electrical engineering technology, and in particular to a method, device and medium for correcting a contract electricity curve. Background Art

[0002] In today's electricity market, there is a way to purchase electricity in the form of contracts. Grid companies provide electricity to users according to the contracts signed in advance with users. This kind of electricity contract can not only provide market players with a hedging tool in the face of price fluctuations, but also achieve the advantages of stranded cost recovery, market power control and renewable energy consumption.

[0003] However, the current method of selling electricity in the form of contracts cannot accurately predict the user's electricity consumption when formulating the contract, resulting in a deviation between the agreed contract electricity and the user's actual electricity consumption, which will result in an imbalance of funds when subsequently settled through the contract electricity curve, thereby affecting the stability of the electricity market.

[0004] Therefore, technicians in this field are in urgent need of a contract electricity curve correction method to reasonably deal with the problem of unbalanced funds and maintain the stability of the electricity market. Summary of the invention

[0005] The purpose of this application is to provide a contract electricity curve correction method, device and medium thereof to reasonably deal with the problem of unbalanced funds.

[0006] In order to solve the above technical problems, the present application provides a method for correcting a contract electricity curve, including:

[0007] Acquire an actual load curve and a preset first threshold value; wherein the first threshold value is determined according to historical settlement information of the power grid;

[0008] Determine the deviation percentage between the actual power consumption and the contracted power consumption in each trading period based on the actual load curve;

[0009] Correcting each deviation percentage according to a first threshold value;

[0010] The contract electricity curve is determined based on the corrected deviation percentage.

[0011] Preferably, before determining the contract power curve according to the corrected deviation percentage, the method further includes:

[0012] Determine the load curve deviation coefficient based on the deviation percentage of each trading period;

[0013] re-determining the first threshold value according to the load curve deviation coefficient;

[0014] And according to the newly obtained first threshold value, each deviation percentage is corrected again.

[0015] Preferably, the first threshold is a plurality of different values, and correspondingly, the determined load curve deviation coefficients are a plurality of values.

[0016] Preferably, determining the load curve deviation coefficient according to the deviation percentage of each trading period includes:

[0017] Determine the load curve deviation coefficient according to the first formula;

[0018] Among them, the first formula is:

[0019]

[0020] γ represents the load curve deviation coefficient, It represents the deviation percentage of the corrected t trading period, and T represents the number of trading periods.

[0021] Preferably, determining the deviation percentage between the actual power consumption and the contracted power consumption in each trading period according to the actual load curve includes:

[0022] determining the deviation percentage according to a second formula;

[0023] Among them, the second formula is:

[0024]

[0025] y t represents the deviation percentage for t trading period, represents the actual power consumption of non-market loads during trading period t, It is expressed as the contract decomposition volume of the i-th unit in the t trading period, N represents the total number of units participating in the settlement, and T represents the total number of trading periods.

[0026] Preferably, correcting each deviation percentage according to the first threshold value includes:

[0027] The corrected deviation percentage is obtained according to the third formula;

[0028] Among them, the third formula is:

[0029]

[0030] represents the deviation percentage of the corrected t trading period, τ represents the first threshold, y t It represents the deviation percentage of t trading period, and T represents the total number of trading periods.

[0031] Preferably, determining the contract electricity curve according to the corrected deviation percentage includes:

[0032] Determine the contract power curve according to the fourth formula;

[0033] Among them, the fourth formula is:

[0034]

[0035] Represents the revised contract electricity curve for settlement, It represents the contract electricity curve before correction. It represents the deviation percentage of the corrected t trading period, T represents the number of trading periods, and N represents the total number of units participating in the settlement.

[0036] In order to solve the above technical problems, the present application also provides a contract electricity curve correction device, including:

[0037] An acquisition module, used for acquiring an actual load curve and a preset first threshold;

[0038] The first determination module is used to determine the deviation percentage between the actual power consumption and the contract power consumption in each trading period according to the actual load curve;

[0039] A correction module, used for correcting each deviation percentage according to a first threshold;

[0040] The second determination module is used to determine the contract electricity curve according to the corrected deviation percentage.

[0041] Preferably, it also includes:

[0042] The third determination module is used to determine the load curve deviation coefficient according to the deviation percentage of each trading period; re-determine the first threshold value according to the load curve deviation coefficient, and return to the step of correcting each deviation percentage according to the first threshold value.

[0043] In order to solve the above technical problems, the present application also provides a contract electricity curve correction device, including:

[0044] Memory for storing computer programs;

[0045] A processor is used to implement the steps of the above-mentioned contract electricity curve correction method when executing a computer program.

[0046] In order to solve the above technical problems, the present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the contract electricity curve correction method as mentioned above are implemented.

[0047] The present application provides a method for correcting a contract electricity curve, which corrects an actual load curve through a first threshold to obtain a contract electricity curve for post-settlement. Since the first threshold is determined based on the historical settlement information of the power grid, it can reflect the settlement needs of the power grid to reduce the amount of unbalanced funds. Therefore, the contract electricity curve corrected by the first threshold reduces the unbalanced funds, which is beneficial to the settlement of the contract electricity and maintains the stability of the electricity market.

[0048] The contract electricity curve correction device and computer-readable storage medium provided in this application correspond to the above method and have the same effect as above. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0050] Figure 1 A flow chart of a method for correcting a contract electricity curve provided by the present invention;

[0051] Figure 2 A flow chart of another method for correcting a contract electricity quantity curve provided by the present invention;

[0052] Figure 3 A structural diagram of a contract electricity curve correction device provided by the present invention;

[0053] Figure 4 A structural diagram of another contract electricity curve correction device provided by the present invention. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0055] The core of this application is to provide a contract electricity curve correction method, device and medium.

[0056] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0057] A method for correcting a contract electricity curve disclosed in the present application aims to provide a method for correcting a contract electricity curve used for contract electricity settlement, so as to reduce the deviation between the actual electricity consumption of non-market users and the contract electricity in the contract electricity curve, thereby maintaining the smooth operation of the electricity market.

[0058] like Figure 1 As shown in the figure, the contract electricity curve correction method includes:

[0059] S11: Acquire an actual load curve and a preset first threshold value.

[0060] The first threshold is determined based on the historical settlement information of the power grid. When setting the first threshold, the settlement requirements of the power grid need to be considered. The higher the first threshold is set, the better, so as to reduce the amount of unbalanced funds, that is, the deviation between the actual power consumption of non-market users and the contracted power consumption. In addition, this embodiment does not limit the number of first thresholds, which can be one or more.

[0061] S12: Determine the deviation percentage between the actual power consumption and the contracted power consumption in each trading period based on the actual load curve.

[0062] The specific operation steps can be shown in the following preferred scheme:

[0063] The deviation percentage of each trading period is determined according to the second formula, which is:

[0064]

[0065] yt represents the deviation percentage of the t trading period, represents the actual power consumption of non-market loads during trading period t, It is expressed as the contract decomposition volume of the i-th unit in the t trading period, N represents the total number of units participating in the settlement, and T represents the total number of trading periods.

[0066] S13: Correct each deviation percentage according to the first threshold value.

[0067] The deviation percentage of each trading period obtained in step S12 is initially corrected by the preset first threshold to obtain a corrected deviation percentage. If there are multiple first thresholds, different first thresholds are used to perform corrections respectively to obtain multiple sets of corrected deviation percentages.

[0068] A specific implementation of the correction process is as follows:

[0069] Determine in turn whether the deviation percentage of each trading period exceeds the first threshold; if exceeded, take the first threshold as the contract electricity deviation percentage of the trading period; if not exceeded, keep the original deviation percentage value unchanged.

[0070] The limiting process is expressed mathematically as shown in the third formula below:

[0071]

[0072] represents the deviation percentage of the corrected t trading period, and τ represents the first threshold.

[0073] S14: Determine the contract electricity curve according to the corrected deviation percentage.

[0074] The contract electricity curve is re-determined according to the corrected deviation percentage value obtained in step S13. If there are multiple groups of corrected deviation percentage values ​​obtained in step S13, one of them can be selected as the final deviation percentage according to demand, and then the contract electricity curve is determined; or each group of deviation percentage values ​​can be first determined as the contract electricity curve, and then the most satisfactory contract electricity curve is selected according to the settlement needs of the power grid.

[0075] Similarly, this embodiment also provides an implementation scheme for determining the contract electricity curve according to the deviation percentage of each trading period. The specific process is shown in the fourth formula below:

[0076]

[0077] Represents the revised contract electricity curve for settlement, Represents the contract electricity curve before correction.

[0078] Therefore, the steps of the above-mentioned method for correcting the contract electricity curve are used to correct and determine the contract electricity curve for post-settlement of non-market users. Since the method corrects the deviation percentage through the first threshold, and the first threshold is determined based on the historical data of the power grid and the settlement requirements of the power grid, the deviation between the contract electricity and the actual electricity consumption in the contract electricity curve can be reduced by correcting the deviation percentage through the first threshold, thereby reducing the amount of unbalanced funds generated during the final settlement and maintaining the smooth operation of the power market.

[0079] It can be seen from the above embodiments that the method for correcting the contract electricity curve provided by the present application uses the settlement demand of the power grid as a reference to correct the contract electricity curve during the correction process, so as to meet the needs of the power grid and maintain the smooth operation of the power market. However, in addition to the power grid, power plants are also an important part of the power market, so this embodiment also provides a preferred implementation scheme, such as Figure 2 As shown, a contract electricity curve correction method provided by the present application also includes:

[0080] S21: Determine the load curve deviation coefficient according to the deviation percentage of each trading period.

[0081] The specific determination process is shown in the first formula below:

[0082]

[0083] γ represents the load curve deviation coefficient.

[0084] S22: re-determine the first threshold value according to the load curve deviation coefficient;

[0085] S23: Re-correcting each deviation percentage according to the new first threshold value.

[0086] It should be noted that the deviation percentage in step S23 is the deviation percentage obtained after step S12 is performed.

[0087] Correspondingly, after the deviation percentage is obtained according to step S12 to calculate the unbalanced fund amount, and the load curve deviation coefficient is obtained according to step S21, the first threshold is re-determined, or one of the multiple groups of first thresholds is re-determined as the final first threshold.

[0088] In the process of determining the final first threshold, the settlement demand of the power grid is to reduce the amount of unbalanced funds, so from this perspective, the first threshold should be as high as possible; from the perspective of the cost recovery demand of the power plant, the load curve deviation coefficient should be reduced, which is reflected in the first threshold, that is, the lower the selected first threshold, the better; considering the settlement demand of the power grid and the cost recovery demand of the power plant, a suitable first threshold is selected as the final first threshold to correct the deviation percentage, and then determine the final contract electricity curve.

[0089] This embodiment introduces the parameter of load curve deviation coefficient, so that when determining the contract electricity curve, the cost recovery demand of the power plant is also taken into consideration as an influencing factor on the basis of considering the settlement demand of the power grid. The contract electricity curve determined in this way can not only reduce the deviation between the contract electricity of non-market users and the actual electricity consumption, but also meet the cost recovery demand of the power plant. At the same time, it meets the needs of two important subjects in the electricity market, which is further conducive to maintaining the stability of the operation of the electricity market.

[0090] To further illustrate a contract electricity curve correction method provided by the present application, this embodiment, based on the above embodiment, generally describes the method in detail:

[0091] First, the actual load curve of the non-market user and the preset first threshold are obtained. Preferably, there are multiple first thresholds, which is step S11.

[0092] Then, the deviation percentage between the contracted electricity consumption and the actual electricity consumption in each trading period is determined according to the actual load curve, which is step S12.

[0093] Next, a preliminary correction is performed on the plurality of groups of deviation percentages according to a preset first threshold value, which is step S13.

[0094] Next, a parameter load curve deviation coefficient is introduced to calculate the load curve deviation coefficient of each group of initially corrected deviation percentages, which is step S21.

[0095] Afterwards, according to the unbalanced funds and the load curve deviation coefficient corresponding to the corrected deviation percentages of each group, a suitable first threshold is selected as the first threshold for the final contract electricity correction, which is step S22.

[0096] Finally, the deviation percentage is corrected again according to the final first threshold value determined in the above steps, that is, step S23, and the contract electricity curve is finally determined, that is, step S14.

[0097] At this point, a complete contract electricity curve correction process is completed. The corrected contract electricity curve can not only reduce the deviation between the actual electricity consumption of non-market users and the contract electricity, but also meet the cost recovery needs of power plants to a certain extent, thereby further maintaining the smooth operation of the power market.

[0098] In the above embodiment, a method for correcting a contract electricity curve is described in detail, and the present application also provides an embodiment corresponding to a contract electricity curve correction device. It should be noted that the present application describes the embodiments of the device part from two perspectives, one is based on the perspective of the functional module, and the other is based on the perspective of the hardware.

[0099] From the perspective of functional modules, the present embodiment provides a contract power curve correction device, such as Figure 3 As shown, including:

[0100] An acquisition module 31 is used to acquire an actual load curve and a preset first threshold;

[0101] The first determination module 32 is used to determine the deviation percentage between the actual power consumption and the contract power consumption in each trading period according to the actual load curve;

[0102] A correction module 33, used to correct each deviation percentage according to a first threshold;

[0103] The second determination module 34 is used to determine the contract power curve according to the corrected deviation percentage.

[0104] Preferably, it also includes:

[0105] The third determination module is used to determine the load curve deviation coefficient according to the deviation percentage of each trading period; re-determine the first threshold value according to the load curve deviation coefficient, and return to the step of correcting each deviation percentage according to the first threshold value.

[0106] Since the embodiments of the apparatus part correspond to the embodiments of the method part, please refer to the description of the embodiments of the method part for the embodiments of the apparatus part, which will not be repeated here.

[0107] The present embodiment provides a contract electricity curve correction device, which corrects the deviation percentage through the correction module 33 to determine the contract electricity curve used for post-settlement of non-market users. Since the correction module 33 corrects the deviation percentage through the first threshold, and the first threshold is determined based on the historical data of the power grid and taking into account the settlement needs of the power grid, correcting the deviation percentage through the first threshold can reduce the deviation between the contract electricity and the actual electricity consumption in the contract electricity curve, thereby reducing the amount of unbalanced funds generated during the final settlement and maintaining the smooth operation of the electricity market.

[0108] Figure 4 A structural diagram of a contract power curve correction device provided in another embodiment of the present application is shown in FIG. Figure 4 As shown, a contract electricity curve correction device includes: a memory 40 for storing a computer program;

[0109] The processor 41 is used to implement the steps of a method for correcting a contract electricity curve in the above embodiment when executing a computer program.

[0110] The contract electricity curve correction device provided in this embodiment may include but is not limited to a smart phone, a tablet computer, a laptop computer or a desktop computer.

[0111] Among them, the processor 41 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 41 can be implemented in at least one hardware form of a digital signal processor (DSP), a field-programmable gate array (FPGA), and a programmable logic array (PLA). The processor 41 may also include a main processor and a coprocessor. The main processor is a processor for processing data in the awake state, also known as a central processing unit (CPU); the coprocessor is a low-power processor for processing data in the standby state. In some embodiments, the processor 41 may be integrated with a graphics processing unit (GPU), which is responsible for rendering and drawing the content to be displayed on the display screen. In some embodiments, the processor 41 may also include an artificial intelligence (AI) processor, which is used to process computing operations related to machine learning.

[0112] The memory 40 may include one or more computer-readable storage media, which may be non-transitory. The memory 40 may also include a high-speed random access memory, and a non-volatile memory, such as one or more disk storage devices, flash memory storage devices. In this embodiment, the memory 40 is at least used to store the following computer program 401, wherein, after the computer program is loaded and executed by the processor 41, it can implement the relevant steps of a contract electricity curve correction method disclosed in any of the aforementioned embodiments. In addition, the resources stored in the memory 40 may also include an operating system 402 and data 403, etc., and the storage method may be temporary storage or permanent storage. Among them, the operating system 402 may include Windows, Unix, Linux, etc. Data 403 may include, but is not limited to, a contract electricity curve correction method, etc.

[0113] In some embodiments, a contract electricity curve correction device may further include a display screen 42 , an input / output interface 43 , a communication interface 44 , a power supply 45 , and a communication bus 46 .

[0114] Those skilled in the art will understand that Figure 4 The structure shown in the figure does not constitute a limitation on a contract electricity curve correction device, and may include more or fewer components than those shown in the figure.

[0115] A contract electricity curve correction device provided in an embodiment of the present application includes a memory and a processor. When the processor executes a program stored in the memory, it can implement the following method: a contract electricity curve correction method.

[0116] The present embodiment provides a contract electricity curve correction device, which, when executing the contract electricity curve correction method stored in the memory through the processor, can correct the deviation percentage according to the first threshold value determined by the historical data of the power grid and the settlement requirements of the power grid to obtain the final contract electricity curve, so as to reduce the deviation between the contract electricity and the actual electricity consumption in the contract electricity curve, reduce the unbalanced funds in the final settlement, and maintain the smooth operation of the electricity market.

[0117] Finally, the present application also provides an embodiment corresponding to a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps recorded in the above method embodiment are implemented.

[0118] It is understandable that if the method in the above embodiment 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 application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.

[0119] A computer-readable storage medium provided in this embodiment executes a computer program stored therein to correct the deviation percentage according to a first threshold value determined by the historical data of the power grid and the settlement requirements of the power grid to obtain a final contractual electricity curve, so as to reduce the deviation between the contractual electricity and the actual electricity consumption in the contractual electricity curve, reduce the unbalanced funds in the final settlement, and maintain the smooth operation of the electricity market.

[0120] The above is a detailed introduction to a method, device and medium for correcting a contract electricity curve provided by the present application. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the embodiments can refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can refer to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

[0121] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

Claims

1. A method for correcting a contract electricity curve, characterized in that: include: Acquire an actual load curve and a preset first threshold value; wherein the first threshold value is determined according to historical settlement information of the power grid; Determine the deviation percentage between the actual power consumption and the contracted power consumption in each trading period according to the actual load curve; Correcting each of the deviation percentages according to the first threshold value; Determine the contract electricity curve according to the corrected deviation percentage; Before determining the contract electricity curve according to the corrected deviation percentage, the method further includes: Determining a load curve deviation coefficient based on the deviation percentage for each trading period; re-determining the first threshold value according to the load curve deviation coefficient; and re-correcting each of the deviation percentages according to the newly obtained first threshold value; Determining the load curve deviation coefficient according to the deviation percentage of each trading period includes: Determining the load curve deviation coefficient according to a first formula; Among them, the first formula is: γ represents the load curve deviation coefficient, represents the deviation percentage of the corrected t trading period, T represents the total number of trading periods; Determining the deviation percentage between the actual power consumption and the contracted power consumption in each trading period according to the actual load curve includes: Determining the deviation percentage according to a second formula; Wherein, the second formula is: yt represents the deviation percentage in the t trading period, represents the actual power consumption of non-market loads during trading period t, It is expressed as the contract decomposition volume of the i-th unit in the t trading period, N represents the total number of units participating in the settlement, and T represents the total number of periods in the trading period; The correcting each of the deviation percentages according to the first threshold comprises: Obtain the corrected deviation percentage according to a third formula; Wherein, the third formula is: represents the deviation percentage of the corrected t trading period, τ represents the first threshold, yt represents the deviation percentage of the t trading period, and T represents the total number of trading periods.

2. The method for correcting the contract electricity curve according to claim 1, characterized in that: The first threshold is a plurality of different values, and correspondingly, the load curve deviation coefficients determined are a plurality of values.

3. The method for correcting the contract electricity curve according to any one of claims 1 to 2, characterized in that: Determining the contract electricity curve according to the corrected deviation percentage includes: Determine the contract electricity curve according to the fourth formula; Wherein, the fourth formula is: represents the modified contract electricity curve for settlement, It represents the contract electricity curve before correction. It represents the deviation percentage of the corrected t trading period, T represents the total number of trading periods, and N represents the total number of units participating in the settlement.

4. A contract electricity curve correction device, characterized in that: include: An acquisition module, used for acquiring an actual load curve and a preset first threshold; A first determination module is used to determine the deviation percentage between the actual power consumption and the contract power consumption in each trading period according to the actual load curve; A correction module, used for correcting each of the deviation percentages according to the first threshold; A second determination module is used to determine the contract power curve according to the corrected deviation percentage; The contract electricity curve correction device is used to implement the contract electricity curve correction method described in claim 1.

5. A contract electricity curve correction device, characterized in that: include: Memory for storing computer programs; A processor, used to implement the steps of the contract electricity curve correction method as described in any one of claims 1 to 3 when executing the computer program.

6. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by the processor, the steps of the contract electricity curve correction method as described in any one of claims 1 to 3 are implemented.

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