Data processing method and device based on substation automatic voltage control results

Abstract

The embodiment of the present application is applicable to the technical field of power dispatching and power data processing, and provides a data processing method and device based on the results of automatic voltage control of a substation, the method comprising: when the AVC automatic adjustment of the substation is completed, obtaining the adjustment data of this AVC automatic adjustment; determining the data tag group according to the bus voltage value in the adjustment data; generating and storing adjustment reference data according to the data tag group and the adjustment data; when receiving the AVC automatic adjustment information sent by the master station, generating a target adjustment instruction according to the AVC automatic adjustment information and the stored adjustment reference data; based on the target adjustment instruction, adjusting the reactive power of each unit in the substation. Using the above method, each AVC automatic adjustment data in the substation can be processed and stored, which helps to improve the value and availability of the data. The stored data can also be used as reference data in the subsequent adjustment process to improve the reliability and accuracy of the subsequent adjustment.

Description

Technical Field

[0001] The embodiments of the present application belong to the technical field of power dispatching and power data processing, and in particular, to a data processing method and device based on automatic voltage control results of a substation. Background Art

[0002] Automatic voltage control (AVC) is one of the two major automatic control systems of modern power grids. It is a control technology that centrally monitors and analyzes the reactive voltage status of the entire network and coordinates and optimizes the reactive devices of the widely dispersed power grid from a global perspective. Through AVC automatic adjustment, not only can the reactive voltage be automatically adjusted, but the system voltage can also be kept stable through optimization functions, thereby improving the voltage quality of the power grid and the economic operation level of the system.

[0003] In order to conduct a review and analysis of the operating status of the power grid, the relevant data of each AVC automatic adjustment can be collected and stored, and the relevant data can be extracted for analysis when needed. However, there is no clear specification in the prior art for collecting and storing the relevant data of AVC automatic adjustment, and each AVC automatic adjustment of the substation generates a lot of data. Directly storing the original data generated by AVC automatic adjustment according to the time when the data was generated is not conducive to the subsequent convenient use of the data. In addition, if such a large amount of data is only used for the review and analysis of the operating status of the power grid, the true value of the data cannot be brought into play. Summary of the invention

[0004] In view of this, an embodiment of the present application provides a data processing method and device based on the substation automatic voltage control results, which is used to process the data generated by the substation AVC automatic adjustment and standardize the data processing and storage methods; and the processed data can also be used as reference data for each subsequent AVC automatic adjustment, thereby improving the value and availability of the data, improving the accuracy of AVC automatic adjustment, and ensuring the safe operation of the power grid.

[0005] A first aspect of an embodiment of the present application provides a data processing method based on a substation automatic voltage control result, comprising:

[0006] When the substation AVC automatic adjustment is completed, the adjustment data of this AVC automatic adjustment is obtained, and the adjustment data at least includes the bus voltage value;

[0007] Determining a data tag group for data query according to the bus voltage value;

[0008] Generate adjustment reference data according to the data tag group and the adjustment data and store the adjustment reference data, wherein the adjustment reference data is marked as forward reference data or reverse reference data, wherein the forward reference data is used to indicate that the current AVC automatic adjustment is successful, and the reverse reference data is used to indicate that the current AVC automatic adjustment fails;

[0009] When receiving the AVC automatic adjustment information sent by the master station, generating a target adjustment instruction according to the AVC automatic adjustment information and the stored adjustment reference data;

[0010] Based on the target adjustment instruction, the reactive power of each unit in the substation is adjusted.

[0011] A second aspect of an embodiment of the present application provides a data processing device based on a substation automatic voltage control result, comprising:

[0012] An acquisition module is used to acquire the adjustment data of the current AVC automatic adjustment after the substation AVC automatic adjustment is completed, and the adjustment data at least includes the bus voltage value;

[0013] A determination module, used to determine a data tag group for data query according to the bus voltage value;

[0014] a storage module, configured to generate adjustment reference data according to the data tag group and the adjustment data and store the adjustment reference data, wherein the adjustment reference data is marked as forward reference data or reverse reference data, wherein the forward reference data is used to indicate that the current AVC automatic adjustment is successful, and the reverse reference data is used to indicate that the current AVC automatic adjustment fails;

[0015] A generating module, configured to generate a target adjustment instruction according to the AVC automatic adjustment information and the stored adjustment reference data when receiving the AVC automatic adjustment information sent by the master station;

[0016] The regulating module is used to regulate the reactive power of each unit in the substation based on the target regulating instruction.

[0017] A third aspect of an embodiment of the present application provides a computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the data processing method based on the automatic voltage control result of the substation as described in the first aspect above is implemented.

[0018] The fourth aspect of an embodiment of the present application provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it implements the data processing method based on the substation automatic voltage control result as described in the first aspect above.

[0019] A fifth aspect of an embodiment of the present application provides a computer program product. When the computer program product runs on a computer, the computer executes the data processing method based on the substation automatic voltage control result described in the first aspect.

[0020] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0021] In the embodiment of the present application, by processing and storing the adjustment data of the current AVC automatic adjustment after each completion of the AVC automatic adjustment, the stored data can be used as reference data in the subsequent AVC automatic adjustment process to evaluate the reliability and accuracy of the subsequent adjustment process, thereby improving the reliability of the AVC automatic adjustment. Applying the method provided in the embodiment of the present application to process the adjustment data generated by the AVC automatic adjustment can not only standardize the data processing and storage methods, but also improve the value and availability of the data, improve the accuracy of the AVC automatic adjustment, and ensure the safe operation of the power grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or prior art descriptions. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of a data processing method based on substation automatic voltage control results provided by an embodiment of the present application;

[0024] Figure 2 It is a schematic diagram of a possible implementation of S103 in a data processing method based on a substation automatic voltage control result provided in an embodiment of the present application;

[0025] Figure 3 It is a schematic diagram of a possible implementation of S1033 in a data processing method based on a substation automatic voltage control result provided in an embodiment of the present application;

[0026] Figure 4 It is a schematic diagram of a possible implementation of S104 in a data processing method based on a substation automatic voltage control result provided in an embodiment of the present application;

[0027] Figure 5 It is a schematic diagram of a possible implementation of S1042 in a data processing method based on a substation automatic voltage control result provided in an embodiment of the present application;

[0028] Figure 6 is a schematic diagram of a data processing device based on substation automatic voltage control results provided by an embodiment of the present application;

[0029] Figure 7 It is a schematic diagram of a computer device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0030] In the following description, specific details such as specific system structures, technologies, etc. are proposed for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from hindering the description of the present application.

[0031] The technical solution of the present application is described below through specific embodiments.

[0032] Reference Figure 1 , shows a schematic diagram of a data processing method based on substation automatic voltage control results provided by an embodiment of the present application, which may specifically include the following steps:

[0033] S101. After the substation AVC automatic adjustment is completed, the adjustment data of this AVC automatic adjustment is obtained, and the adjustment data at least includes a bus voltage value.

[0034] The embodiments of the present application can be applied to computer equipment, that is, the executor of the present method is a computer device, and the computer device can be an electronic device installed in a substation for performing AVC automatic adjustment on each unit in the substation. Alternatively, the computer device may not be installed in the substation, but performs AVC automatic adjustment on each unit in the substation in the form of remote instructions. The embodiments of the present application do not limit the installation location of the computer device. Specifically, the computer device can automatically collect and process the data generated by the AVC automatic adjustment of each unit in the substation by executing each step in the present method. The data obtained after processing can be stored in the manner provided in the embodiments of the present application, so that in the subsequent AVC automatic adjustment process, it can be used as adjustment reference data to correct the current adjustment process, ensure the reliability and accuracy of the AVC automatic adjustment, and ensure the normal operation of the power grid.

[0035] In the embodiment of the present application, after the substation completes the current AVC automatic adjustment, the computer device may obtain the adjustment data of the current AVC automatic adjustment, wherein the above adjustment data may include the bus voltage value.

[0036] Usually, AVC automatic regulation is based on the bus voltage target value issued by the master station, calculates the reactive power that needs to be injected from the bus into the grid, and then issues corresponding instructions to distribute the reactive power to the corresponding units, thereby achieving regulation of the bus voltage. For example, the reactive power of each unit is distributed through the magnetizing pulse instruction or the demagnetizing pulse instruction.

[0037] Therefore, after completing the AVC automatic adjustment, the bus voltage value in the adjustment data obtained by the computer device may specifically include the bus voltage target value issued by the master station and the real-time bus first voltage value and bus second voltage value before and after the AVC automatic adjustment. Among them, the bus first voltage value is the real-time voltage of the bus before the AVC automatic adjustment, and the bus second voltage value is the real-time voltage of the bus after the AVC automatic adjustment.

[0038] In a possible implementation of the embodiment of the present application, the bus voltage target value issued by the master station can be a specific voltage value or a voltage value within a certain range. After completing an AVC automatic adjustment, the bus voltage can be maintained at a specific voltage value or within a certain voltage range, which is not limited in the embodiment of the present application.

[0039] In another possible implementation of the embodiment of the present application, in addition to the above bus voltage value, the adjustment data may also include other types of data, such as the blocking conditions and constraint conditions of each unit in the substation, and the current actual reactive power data.

[0040] S102: Determine a data tag group for data query according to the bus voltage value.

[0041] In an embodiment of the present application, a computer device may store the adjustment data of each AVC automatic adjustment. On the one hand, by analyzing the stored adjustment data, the operating status of the power grid in a certain time period can be reviewed to provide a reference for subsequent operation optimization. On the other hand, an embodiment of the present application may utilize the adjustment data of each AVC automatic adjustment stored to optimize the subsequent AVC automatic adjustment. That is, using the adjustment data of past AVC automatic adjustments as reference data, the subsequent AVC automatic adjustment process is improved, the reliability and accuracy of AVC automatic adjustment is improved, and the safe operation of the power grid is ensured.

[0042] In the embodiment of the present application, the adjustment data can be stored in a certain manner. At the same time, in order to facilitate the subsequent rapid search for required data from the stored data, the computer device can set a corresponding identifier when storing the adjustment data.

[0043] In a possible implementation of the embodiment of the present application, a data tag group for subsequent data query can be generated according to the bus voltage value, and the data tag group is used to find the identification of related data.

[0044] As an example of an embodiment of the present application, the computer device may generate a data tag group in the form of a tuple. For example, the bus voltage value may be stored in a triple, and the triple is used as the data tag group. For example, assuming that the bus voltage target value sent by the master station is U p , the real-time bus first voltage value and bus second voltage value before and after the AVC automatic adjustment are U1 and U2 respectively, then the triplet constituting the data label group can be expressed as (U p , U1, U2).

[0045] Since the stored adjustment data will be used as reference data for subsequent adjustment processes, but the bus voltage before each adjustment is not exactly the same, in another possible implementation method of the embodiment of the present application, a data label group can be constructed based on the real-time change amplitude of the bus first voltage value and the bus second voltage value before and after the AVC automatic adjustment.

[0046] Specifically, the bus voltage adjustment amplitude can be determined according to the bus first voltage value and the bus second voltage value. For example, the bus voltage adjustment amplitude can be expressed as the ratio between the bus second voltage value after adjustment and the bus first voltage value before adjustment. Taking the above example as an example, the bus voltage adjustment amplitude can be expressed as U2 / U1.

[0047] Therefore, after the bus first voltage value and the bus second voltage value are expressed as a ratio of numerical values, the label data group originally constructed in the form of a triple can be expressed in a binary data. That is, the bus voltage target value and the bus voltage adjustment amplitude can be used to construct a binary data as a data label group. In one example, the bus voltage target value can be the first element in the binary data. Therefore, the aforementioned data label group expressed in a triple can also represent a binary data label group, that is: (U p , U2 / U1).

[0048] S103. Generate adjustment reference data according to the data tag group and the adjustment data and store the adjustment reference data, wherein the adjustment reference data is marked as forward reference data or reverse reference data, wherein the forward reference data is used to characterize the success of the current AVC automatic adjustment, and the reverse reference data is used to characterize the failure of the current AVC automatic adjustment.

[0049] In an embodiment of the present application, after determining the data tag group for data query in S102, adjustment reference data can be generated and stored based on the data tag group and the actually obtained adjustment data. Among them, the adjustment reference data can include two categories, one is forward reference data, and the other is reverse reference data. The above-mentioned forward reference data can indicate that the AVC automatic adjustment is successful, and the reverse reference data can indicate that the AVC automatic adjustment fails. That is to say, when the AVC automatic adjustment is successful, the adjustment data obtained by the computer device can form forward reference data after processing; if the AVC automatic adjustment fails, the adjustment data obtained by the computer device will be stored as reverse reference data.

[0050] In a possible implementation of an embodiment of the present application, the success of AVC automatic adjustment may mean that after AVC automatic adjustment, the real-time bus voltage, that is, the bus second voltage value, is the same as the bus voltage target value issued by the master station, or the bus second voltage value is stable within a preset bus voltage range. Otherwise, it is a case of AVC automatic adjustment failure. Of course, other judgment criteria can also be set according to actual needs to determine whether each AVC automatic adjustment is successful. For example, add a power factor assessment index. When the real-time bus second voltage value after AVC automatic adjustment is stable within the preset bus voltage range and the power factor meets the corresponding assessment index, the AVC automatic adjustment is determined to be successful; otherwise, even if the real-time bus second voltage value after AVC automatic adjustment is stable within the preset bus voltage range, but the power factor does not meet the corresponding assessment index, it can also be determined that the AVC automatic adjustment has failed. The embodiment of the present application does not limit the judgment criteria for the success or failure of AVC automatic adjustment.

[0051] In the embodiment of the present application, the adjustment data may also include the reactive adjustment value of each unit in the substation, which may represent the reactive power actually allocated to each unit in the substation calculated based on the bus voltage target value issued by the master station, that is, the reactive power to be adjusted based on the actual reactive power of each unit. Therefore, when generating and storing the adjustment reference data, the computer device should store the above reactive adjustment value.

[0052] In a possible implementation of the embodiment of the present application, as Figure 2As shown, in S103, generating adjustment reference data and storing the adjustment reference data according to the data tag group and the adjustment data may specifically include the following steps S1031-S1035:

[0053] S1031. Determine the operating conditions of each unit in the substation before the current AVC automatic adjustment.

[0054] In the embodiment of the present application, a substation may include multiple units, and automatic AVC adjustment of the substation is to adjust the reactive power of each unit in the substation. Therefore, before actual adjustment, it is necessary to determine the operating conditions of each unit. Exemplarily, the operating conditions of each unit may include the power generation of each unit, the current actual reactive power and voltage, etc. Specifically, the operating conditions of each unit can be expressed as:

[0055] #1 unit: power generation P 11 =353.6MW, the actual reactive power Q 11 =77.3MVAR, voltage U 11 =22.55KV;

[0056] #2 unit: power generation P 21 =325.7MW, the actual reactive power Q 21 =63.5MVAR, voltage U 21 =21.98KV;

[0057] …

[0058] #N unit: power generation P N1 =355MW, the actual reactive power Q N1 =79MVAR, voltage U N1 =20.03KV;

[0059] …

[0060] Of course, the operating conditions of each unit may also include other information or data, which is not limited in the embodiments of the present application. However, it should be noted that when more operating conditions need to be considered, the subsequent calculation amount will also increase accordingly.

[0061] S1032. Standardize the operating conditions of each unit before the current AVC automatic adjustment to obtain the unit operating data.

[0062] In the embodiment of the present application, since the operating conditions of each unit are different, the operating conditions of each unit can be standardized according to a unified standard to obtain the processed unit operating condition data. By processing the operating conditions of each unit into standard operating condition data, the amount of calculation in providing reference data for the actual adjustment process and comparing with the reference data can be reduced, thereby improving data processing efficiency.

[0063] In a possible implementation of the embodiment of the present application, the operating conditions of each unit can be processed into standardized unit condition data in the form of data ratio based on the ratio of each operating condition to the corresponding operating condition of the entire system.

[0064] For example, the actual current reactive power of each unit can be compared with the total reactive power of the system, and the ratio of the actual current reactive power of each unit to the total reactive power of the system is used as the processed standardized working condition data of the actual current reactive power. For other types of operating conditions, they can also be processed in a similar manner as described above, and the embodiments of the present application are not limited to this.

[0065] S1033, matching the unit operating data of each unit with the reactive power regulation value of the corresponding unit to generate paired regulation data.

[0066] In the embodiment of the present application, after completing the standardization of the operating conditions of each unit, the standardized unit operating condition data can be matched with the reactive adjustment value used by the unit when the AVC automatic adjustment is actually performed to obtain paired adjustment data. The paired adjustment data can represent the specific adjustment method for the unit of the corresponding working condition during the AVC automatic adjustment process.

[0067] In a possible implementation of the embodiment of the present application, as Figure 3 As shown, in S1033, matching the unit operating data of each unit with the reactive power regulation value of the corresponding unit to generate the paired regulation data may specifically include the following steps S1331-S1333:

[0068] S1331. Pre-generate a data storage structure according to the number of units in the substation, wherein the data storage structure includes at least a first structure element and a second structure element, and the first structure element and the second structure element both contain data storage bits that are the same as the number of units.

[0069] In an embodiment of the present application, the paired adjustment data can be stored according to a pre-set data storage structure. The above data storage structure can pre-construct multiple structural elements, such as a first structural element and a second structural element, according to actual storage needs. Among them, the first structural element and the second structural element both contain data storage bits that are the same as the number of units in the substation, and each data storage bit can be used to store the operating condition data or reactive power adjustment value of the corresponding unit.

[0070] For example, if the current substation includes 5 units, namely, unit #1, unit #2, unit #3, unit #4 and unit #5, the first structure element and the second structure element contained in the pre-built data storage structure may each contain 5 data storage bits. In this way, the above data storage structure may be expressed as:

[0071] Str={s1=[(data storage bit 1#),(data storage bit 2#),(data storage bit 3#),(data storage bit 4#),(data storage bit 5#)],

[0072] s2 = [(data storage bit 1#), (data storage bit 2#), (data storage bit 3#), (data storage bit 4#), (data storage bit 5#)]}

[0073] Wherein, s1 and s2 represent the first structure element and the second structure element respectively, and each data storage bit in each structure element is used to store data corresponding to one unit.

[0074] S1332. Write the unit operating condition data into each data storage bit of the first structural element in sequence according to the numbering sequence of each unit.

[0075] In the embodiment of the present application, each data storage bit in the first structure element can be used to store the unit operating data of each unit. Specifically, the operating data of each unit can be written into each data storage bit of the first structure element in sequence according to the numbering sequence of each unit.

[0076] Therefore, in the above example, the data storage structure after writing the unit operating data of each unit can be expressed as:

[0077] Str={s1=[(#1 unit operating data),(#2 unit operating data),(#3 unit operating data),(#4 unit operating data),(#5 unit operating data)],

[0078] s2 = [(data storage bit 1#), (data storage bit 2#), (data storage bit 3#), (data storage bit 4#), (data storage bit 5#)]}

[0079] In another possible implementation of the embodiment of the present application, during the actual operation, a unit may be in a shutdown state. For such a unit, its unit operating data can be represented by a null value of null. For example, in this AVC automatic adjustment process, unit #3 did not participate, and its corresponding unit #3 operating data can be represented as null.

[0080] S1333. In the same order, write the reactive power adjustment values ​​corresponding to the unit operating condition data one by one into each data storage bit of the second structure element to obtain paired adjustment data.

[0081] Corresponding to the unit operating condition data in the first structural element, the reactive power adjustment value of each unit can be written into the second structural element. Specifically, when writing the reactive power adjustment value of each unit, the order of writing the unit operating condition data should also be followed to ensure that the data in each data storage bit in the first structural element matches the data in each data storage bit in the second structural element.

[0082] Therefore, in the above example, the data storage structure after writing the reactive power regulation values ​​of each unit can be expressed as:

[0083] Str={s1=[(#1 unit operating data),(#2 unit operating data),(#3 unit operating data),(#4 unit operating data),(#5 unit operating data)],

[0084] s2=[(reactive power regulation value of unit #1),(reactive power regulation value of unit #2),(reactive power regulation value of unit #3),(reactive power regulation value of unit #4),(reactive power regulation value of unit #5)]}

[0085] It should be noted that the above-mentioned storage of the operating data and reactive power adjustment value of each unit in the form of a pre-built data storage structure is only one possible implementation method of the embodiment of the present application. In another possible implementation method of the embodiment of the present application, the above-mentioned data can also be stored in a matrix or other form, which is not limited in the embodiment of the present application.

[0086] S1034: Using the data tag group as a key and the paired adjustment data as a value corresponding to the key, generate adjustment reference data in the form of a key-value pair.

[0087] In the embodiment of the present application, the data tag group can be used as an identifier for data query or screening, and the corresponding adjustment data is the data specifically executed by the AVC automatic adjustment. Therefore, after the adjustment data is written into the data storage structure, the adjustment reference data in the form of a key-value pair can be generated by using the data tag group as a key, and the paired adjustment data as the value corresponding to the key.

[0088] For example, in the binary group (U p , U2 / U1) represents the data label group. Combined with the paired adjustment data in the above example, the final adjustment reference data can be expressed as: {(U p , U2 / U1):Str}.

[0089] S1035. According to the adjustment result of the current AVC automatic adjustment, the adjustment reference data is stored in the corresponding first database or second database respectively; wherein the first database is used to store forward reference data, and the second database is used to store reverse reference data.

[0090] In the embodiment of the present application, the adjustment result of this AVC automatic adjustment may include any one of successful adjustment or failed adjustment, and any adjustment result of AVC automatic adjustment has and only has one of successful adjustment or failed adjustment. For the successfully adjusted data, that is, the adjustment reference data obtained through the aforementioned steps can be used as the forward reference data; for the failed adjustment data, after processing, it can be used as the reverse reference data.

[0091] For positive reference data, the computer device can store it in the first database; for negative reference data, the computer device can store it in the second database. In this way, the positive reference data and the negative reference data can be stored in different databases without confusing each other or interfering with each other. By using different databases to store positive reference data and negative reference data, it is possible to avoid directly writing the adjustment results into the data during the generation of the adjustment reference data, thereby reducing the amount of data that needs to be processed during subsequent matching and comparison.

[0092] The forward reference data stored in the first database and the reverse reference data stored in the second database may have different uses. For example, if it is necessary to analyze the cause of the failure of the AVC automatic adjustment of the substation within a certain period of time, the computer device may only process the reverse reference data in the second database without analyzing all the adjustment reference data. As for the forward reference data in the first database, it can provide data reference for generating appropriate adjustment instructions in the subsequent AVC automatic adjustment process.

[0093] S104: When receiving the AVC automatic adjustment information sent by the master station, generating a target adjustment instruction according to the AVC automatic adjustment information and the stored adjustment reference data.

[0094] In an embodiment of the present application, the AVC automatic adjustment information sent by the master station may be information for performing AVC automatic adjustment again, sent by the master station to the substation according to the actual operation of the power grid. Usually, the above-mentioned AVC automatic adjustment information may include a bus voltage target value. That is, the above-mentioned AVC automatic adjustment information may indicate that the master station instructs the substation to perform AVC automatic adjustment, so that the voltage of the bus after adjustment remains within the target value or target range. In addition to the bus voltage target value, the AVC automatic adjustment information may also include information such as a bus reactive reference value, such as a bus reactive reference value upper limit value, a bus reactive reference value lower limit value, etc., which is not limited in the embodiment of the present application.

[0095] In an embodiment of the present application, when the computer equipment on the substation side receives the AVC automatic adjustment information sent by the master station, the computer equipment can generate a target adjustment instruction based on the above-mentioned AVC automatic adjustment information and the stored adjustment reference data, that is, the historical data of multiple AVC automatic adjustments in the past, so as to instruct each unit in the substation to perform reactive adjustment according to the target adjustment instruction so as to keep the bus voltage within the target value or target range.

[0096] In a possible implementation of the embodiment of the present application, as Figure 4 As shown, in S104, when the AVC automatic adjustment information sent by the master station is received, generating the target adjustment instruction according to the AVC automatic adjustment information and the stored adjustment reference data may specifically include the following steps S1041-S1043:

[0097] S1041. When receiving the AVC automatic adjustment information sent by the master station, generate a reactive power adjustment instruction according to the AVC automatic adjustment information.

[0098] In the embodiment of the present application, when the computer device receives the AVC automatic adjustment information sent by the master station, the computer device can calculate the reactive power that needs to be adjusted for each unit according to the inherent strategy or algorithm, thereby generating a reactive power adjustment instruction. In the prior art, there are already disclosed a variety of algorithms for performing reactive power adjustment on each unit of the substation based on the bus voltage target value sent by the master station, which will not be described in detail in the embodiment of the present application.

[0099] S1042. Determine the feasibility of the reactive power regulation instruction according to the stored regulation reference data, where the feasibility is represented by a probability value.

[0100] In an embodiment of the present application, in order to improve the reliability and accuracy of AVC automatic adjustment, the present application can use the stored adjustment reference data to correct the reactive adjustment instructions generated according to conventional strategies or algorithms, so as to obtain more reliable target adjustment instructions.

[0101] In a possible implementation of an embodiment of the present application, a computer device may determine the feasibility of a generated reactive power regulation instruction based on stored regulation reference data. The above feasibility may be expressed in the form of a probability value. That is, the larger the probability value, the higher the feasibility of the reactive power regulation instruction currently generated, that is, the greater the possibility of obtaining a successful regulation result by performing reactive power regulation on each unit according to such an instruction; conversely, the smaller the probability value, the lower the feasibility of the reactive power regulation instruction currently generated, that is, the smaller the possibility of obtaining a successful regulation result by performing reactive power regulation on each unit according to such an instruction, and the higher the possibility of regulation failure.

[0102] In the embodiment of the present application, the adjustment reference data in the first database, that is, the forward reference data, can be used to evaluate the feasibility of each generated reactive adjustment instruction. The more similar the adjustment method represented by the currently generated reactive adjustment instruction is to the successful adjustment method in the past, the higher the feasibility of the current reactive adjustment instruction.

[0103] In another possible implementation of the embodiment of the present application, as Figure 5 As shown, in S1042, determining the feasibility of the reactive power regulation instruction according to the stored regulation reference data may specifically include the following steps S1421-S1425:

[0104] S1421. Generate a filtering tag group for data filtering according to the AVC automatic adjustment information.

[0105] S1422: Use the screening tag group to preliminarily screen the forward reference data to obtain candidate reference data.

[0106] In the embodiment of the present application, the AVC automatic adjustment information sent by the master station can be used to generate a filtering tag group for data filtering. The method of generating the filtering tag group can be the same as the method of generating the data tag group in the aforementioned S102.

[0107] Specifically, the AVC automatic adjustment information may include a bus voltage target value, and the computer device may obtain the current bus first voltage value in real time. On this basis, combined with the bus voltage target value, the adjusted bus second voltage value may be estimated. In this way, a screening tag group represented by a binary or ternary group may be generated based on the determined bus voltage target value, the bus first voltage value, and the estimated bus second voltage value.

[0108] It should be noted that when estimating the adjusted bus second voltage value, if the bus voltage target value is a fixed value, the computer device can directly use the bus voltage target value as the adjusted bus second voltage value. If the bus voltage target value is a range value, the computer device can use a certain value in the range, such as the middle value, as the adjusted bus second voltage value. Alternatively, the adjusted bus second voltage value can also be estimated using multiple values ​​in the range, thereby obtaining multiple filter label groups.

[0109] Using the generated screening tag group, the computer device can perform preliminary screening in the forward reference data in the first database to obtain multiple candidate reference data. The candidate reference data can be forward reference data whose data tag group is the same as the screening tag group or within the corresponding range.

[0110] S1423, obtaining current operating condition data of each unit in the substation, wherein the current operating condition data is obtained after standardization of the current operating condition of each unit.

[0111] In the embodiment of the present application, the computer device needs to evaluate the current operating conditions of each unit in the substation before performing AVC automatic adjustment. Therefore, the computer device can standardize the current operating conditions of each unit in the same manner as S1031-S1032 above to obtain the current operating condition data of each unit.

[0112] S1424. Determine target reference data from the candidate reference data according to the current operating condition data.

[0113] S1425. Determine the feasibility of the reactive power regulation instruction based on the target reference data.

[0114] In an embodiment of the present application, for the acquired current operating condition data and the reactive power regulation instructions calculated according to the existing algorithm, the computer device can process them in the same way as generating the regulation reference data to obtain comparison data having the same data format as the regulation reference data.

[0115] For the comparison data, the computer device can match and compare it with the candidate reference data obtained by preliminary screening, so as to determine the target reference data. The above target reference data can be data in the candidate reference data that is relatively similar to the comparison data. The above similarity can be determined by judging whether the data in the corresponding data storage bits are close, for example, whether the ratio between the two is greater than a certain threshold.

[0116] Alternatively, in another possible implementation of the embodiment of the present application, the computer device may separately compare the comparison data and the data in the corresponding data storage bits in each candidate reference data, and then comprehensively compare the data in each data storage bit to determine the similarity between the comparison data and each candidate reference data, and use the similarity corresponding to the similarity as the probability value for evaluating the feasibility of the reactive power regulation instruction.

[0117] S1043. When the probability value representing the feasibility is greater than a preset threshold, a target adjustment instruction is generated based on the reactive power adjustment instruction; otherwise, the reactive power adjustment instruction is regenerated and the feasibility of the regenerated reactive power adjustment instruction is determined.

[0118] In the embodiment of the present application, when the feasibility probability value corresponding to a reactive power regulation instruction is greater than a preset threshold, it can be indicated that the reactive power regulation of each unit of the substation based on the reactive power regulation instruction can obtain a better regulation result, that is, the regulation can be successful, so that the adjusted bus voltage meets the purpose of the regulation requirement. Therefore, a target regulation instruction can be generated based on the currently generated reactive power regulation instruction, and the target regulation instruction can be used to instruct each unit to perform reactive power regulation.

[0119] If the feasibility probability value corresponding to the reactive power regulation instruction is less than or equal to the preset threshold, it may indicate that the reactive power regulation of each unit of the substation based on the reactive power regulation instruction has a high probability of failing to obtain a good regulation result, that is, the regulation may fail. Therefore, the computer device may regenerate the reactive power regulation instruction and re-determine the feasibility of the generated reactive power regulation instruction in the above manner. In an embodiment of the present application, when regenerating the reactive power regulation instruction, the computer device may change the instruction generation strategy or algorithm, that is, use other feasible algorithms to process the AVC regulation information issued by the master station to obtain a new reactive power regulation instruction.

[0120] In a possible implementation of an embodiment of the present application, after determining the feasibility of the reactive power regulation instruction based on the target reference data, if the current reactive power regulation instruction has a higher feasibility, that is, the probability value of the feasibility is greater than a preset threshold, the computer device can also use the reverse reference data in the second database to evaluate its feasibility again.

[0121] In a specific implementation, the computer device can search for similar reference data from the reverse reference data according to the filter tag group and the current working condition data. If similar reference data is found in the reverse reference data, the computer device can use the similar reference data to modify the feasibility of the reactive power regulation instruction.

[0122] Exemplarily, the computer device can generate comparison data using the screening tag group and the current operating condition data, and then determine whether the comparison data has similar data in the reverse reference data in the same manner as the matching comparison in the forward reference data described above. If the comparison data generated based on a certain reactive power regulation instruction only has similar data in the forward reference data, but does not have similar data in the reverse reference data, that is, there is no reverse reference data with a similarity greater than a preset threshold, it means that the feasibility of the reactive power regulation instruction is high. If the comparison data generated based on a certain reactive power regulation instruction has similar data in both the forward reference data and the reverse reference data, the computer device can modify the feasibility of the reactive power regulation instruction, for example, by reducing the feasibility probability value of the reactive power regulation instruction according to a weight or a fixed ratio.

[0123] S105. Based on the target adjustment instruction, adjust the reactive power of each unit in the substation.

[0124] After obtaining the target adjustment instruction, the computer equipment can adjust the reactive power of each unit in the substation according to the target adjustment instruction.

[0125] In the embodiment of the present application, by processing and storing the adjustment data of the current AVC automatic adjustment after each completion of the AVC automatic adjustment, the stored data can be used as reference data in the subsequent AVC automatic adjustment process to evaluate the reliability and accuracy of the subsequent adjustment process, thereby improving the reliability of the AVC automatic adjustment. Applying the method provided in the embodiment of the present application to process the adjustment data generated by the AVC automatic adjustment can not only standardize the data processing and storage methods, but also improve the value and availability of the data, improve the accuracy of the AVC automatic adjustment, and ensure the safe operation of the power grid.

[0126] It should be noted that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0127] Reference Figure 6 , shows a schematic diagram of a data processing device based on a substation automatic voltage control result provided by an embodiment of the present application, which may specifically include an acquisition module 601, a determination module 602, a storage module 603, a generation module 604 and an adjustment module 605, wherein:

[0128] An acquisition module 601 is used to acquire the adjustment data of the current AVC automatic adjustment after the substation AVC automatic adjustment is completed, and the adjustment data at least includes the bus voltage value;

[0129] A determination module 602, configured to determine a data tag group for data query according to the bus voltage value;

[0130] A storage module 603 is used to generate adjustment reference data according to the data tag group and the adjustment data and store the adjustment reference data, wherein the adjustment reference data is marked as forward reference data or reverse reference data, wherein the forward reference data is used to indicate that the current AVC automatic adjustment is successful, and the reverse reference data is used to indicate that the current AVC automatic adjustment fails;

[0131] A generating module 604 is configured to generate a target adjustment instruction according to the AVC automatic adjustment information and the stored adjustment reference data when receiving the AVC automatic adjustment information sent by the master station;

[0132] The adjustment module 605 is used to adjust the reactive power of each unit in the substation based on the target adjustment instruction.

[0133] In a possible implementation of the embodiment of the present application, the bus voltage value includes the bus voltage target value issued by the master station and the real-time bus first voltage value and bus second voltage value before and after the AVC automatic adjustment. The determination module 602 can be specifically used to:

[0134] Determining a bus voltage adjustment amplitude according to the first bus voltage value and the second bus voltage value;

[0135] The bus voltage target value and the bus voltage adjustment amplitude are used to construct a binary data set as a data label group; wherein the bus voltage target value is the first element in the binary data set.

[0136] In a possible implementation of the embodiment of the present application, the regulation data further includes reactive power regulation values ​​of each unit in the substation, and the storage module 603 can be specifically used for:

[0137] Determine the operating conditions of each unit in the substation before the AVC automatic adjustment;

[0138] Standardize the operating conditions of each unit before the AVC automatic adjustment to obtain the unit operating data;

[0139] Matching the unit operating data of each unit with the reactive power regulation value of the corresponding unit to generate paired regulation data;

[0140] Using the data tag group as a key and the paired adjustment data as a value corresponding to the key, generating adjustment reference data in the form of a key-value pair;

[0141] According to the adjustment result of this AVC automatic adjustment, the adjustment reference data is stored in the corresponding first database or second database respectively; wherein the first database is used to store forward reference data, and the second database is used to store reverse reference data.

[0142] In another possible implementation of the embodiment of the present application, the storage module 603 may also be used for:

[0143] Pre-generate a data storage structure according to the number of units in the substation, wherein the data storage structure includes at least a first structure element and a second structure element, wherein the first structure element and the second structure element both contain data storage bits equal to the number of units;

[0144] Writing the unit operating condition data into each data storage bit of the first structural element in sequence according to the numbering sequence of each unit;

[0145] In the same order, the reactive power adjustment values ​​corresponding to the unit operating condition data are written into the respective data storage bits of the second structure element in turn to obtain paired adjustment data.

[0146] In a possible implementation of the embodiment of the present application, the generating module 604 may be specifically used to:

[0147] When receiving the AVC automatic adjustment information sent by the master station, generating a reactive power adjustment instruction according to the AVC automatic adjustment information;

[0148] Determining the feasibility of the reactive power regulation instruction according to the stored regulation reference data, wherein the feasibility is represented by a probability value;

[0149] When the probability value representing the feasibility is greater than a preset threshold, a target adjustment instruction is generated based on the reactive power adjustment instruction; otherwise, the reactive power adjustment instruction is regenerated and the feasibility of the regenerated reactive power adjustment instruction is determined.

[0150] In another possible implementation of the embodiment of the present application, the generating module 604 may also be used to:

[0151] generating a screening tag group for data screening according to the AVC automatic adjustment information;

[0152] Using the screening tag group to preliminarily screen the forward reference data to obtain candidate reference data;

[0153] Acquire current operating condition data of each unit in the substation, wherein the current operating condition data is obtained after standardization of the current operating condition of each unit;

[0154] Determining target reference data from the candidate reference data according to the current operating condition data;

[0155] Based on the target reference data, the feasibility of the reactive power regulation instruction is determined.

[0156] In another possible implementation of the embodiment of the present application, the generating module 604 may also be used to:

[0157] Searching similar reference data from the reverse reference data according to the screening tag group and the current operating condition data;

[0158] If the similar reference data is found in the reverse reference data, the feasibility of the reactive power regulation instruction is corrected using the similar reference data.

[0159] The embodiment of the present application provides a data processing device based on the automatic voltage control result of a substation, which can be a computer device in the aforementioned method embodiments, or a module in a computer device that can implement corresponding functions. By using the device, each step in the aforementioned method embodiments can be implemented.

[0160] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment part.

[0161] Reference Figure 7 , shows a schematic diagram of a computer device provided by an embodiment of the present application. Figure 7 As shown, the computer device 700 in the embodiment of the present application includes: a processor 710, a memory 720, and a computer program 721 stored in the memory 720 and executable on the processor 710. When the processor 710 executes the computer program 721, the steps in each embodiment of the data processing method based on the automatic voltage control result of the substation are implemented, such as Figure 1 Alternatively, when the processor 710 executes the computer program 721, the functions of each module / unit in the above-mentioned device embodiments are realized, for example Figure 6 Functions of modules 601 to 605 are shown.

[0162] Exemplarily, the computer program 721 may be divided into one or more modules / units, which are stored in the memory 720 and executed by the processor 710 to complete the present application. The one or more modules / units may be a series of computer program instruction segments capable of completing specific functions, which may be used to describe the execution process of the computer program 721 in the computer device 700. For example, the computer program 721 may be divided into an acquisition module, a determination module, a storage module, a generation module, and an adjustment module, and the specific functions of each module are as follows:

[0163] An acquisition module is used to acquire the adjustment data of the current AVC automatic adjustment after the substation AVC automatic adjustment is completed, and the adjustment data at least includes the bus voltage value;

[0164] A determination module, used to determine a data tag group for data query according to the bus voltage value;

[0165] a storage module, configured to generate adjustment reference data according to the data tag group and the adjustment data and store the adjustment reference data, wherein the adjustment reference data is marked as forward reference data or reverse reference data, wherein the forward reference data is used to indicate that the current AVC automatic adjustment is successful, and the reverse reference data is used to indicate that the current AVC automatic adjustment fails;

[0166] A generating module, configured to generate a target adjustment instruction according to the AVC automatic adjustment information and the stored adjustment reference data when receiving the AVC automatic adjustment information sent by the master station;

[0167] The regulating module is used to regulate the reactive power of each unit in the substation based on the target regulating instruction.

[0168] The computer device 700 may be a computer device in the aforementioned embodiments, and may be a desktop computer, a cloud server, or other device. The computer device 700 may include, but is not limited to, a processor 710 and a memory 720. Those skilled in the art may understand that Figure 7 This is only an example of the computer device 700 and does not constitute a limitation of the computer device 700. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the computer device 700 may also include input and output devices, network access devices, buses, etc.

[0169] The processor 710 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0170] The memory 720 may be an internal storage unit of the computer device 700, such as a hard disk or memory of the computer device 700. The memory 720 may also be an external storage device of the computer device 700, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the computer device 700. Further, the memory 720 may also include both an internal storage unit of the computer device 700 and an external storage device. The memory 720 is used to store the computer program 721 and other programs and data required by the computer device 700. The memory 720 may also be used to temporarily store data that has been output or is to be output.

[0171] An embodiment of the present application also discloses a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the data processing method based on the substation automatic voltage control result as described in the above-mentioned embodiments.

[0172] An embodiment of the present application further discloses a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the data processing method based on the substation automatic voltage control result as described in the above embodiments is implemented.

[0173] The embodiment of the present application further discloses a computer program product. When the computer program product is run on a computer, the computer is enabled to execute the data processing method based on the substation automatic voltage control result described in the above-mentioned embodiments.

[0174] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application is described in detail with reference to the above-mentioned embodiments, a person skilled in the art should understand that the technical solutions described in the above-mentioned embodiments can still be modified, or some of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A data processing method based on substation automatic voltage control results, characterized in that: include: When the substation AVC automatic adjustment is completed, the adjustment data of this AVC automatic adjustment is obtained, and the adjustment data at least includes the bus voltage value and the reactive adjustment value of each unit in the substation; Determining a data tag group for data query according to the bus voltage value; Determine the operating conditions of each unit in the substation before the current AVC automatic adjustment, and uniformly standardize the operating conditions of each unit before the current AVC automatic adjustment to obtain unit operating condition data; Matching the unit operating data of each unit with the reactive power regulation value of the corresponding unit to generate paired regulation data; The data tag group is used as a key, and the paired adjustment data is used as a value corresponding to the key, to generate adjustment reference data in the form of a key-value pair, wherein the adjustment reference data is marked as forward reference data or reverse reference data, wherein the forward reference data is used to indicate that the current AVC automatic adjustment is successful, and the reverse reference data is used to indicate that the current AVC automatic adjustment fails; According to the adjustment result of the current AVC automatic adjustment, the adjustment reference data is stored in the corresponding first database or second database respectively; wherein the first database is used to store forward reference data, and the second database is used to store reverse reference data; When receiving the AVC automatic adjustment information sent by the master station, generating a target adjustment instruction according to the AVC automatic adjustment information and the stored adjustment reference data; Based on the target adjustment instruction, the reactive power of each unit in the substation is adjusted.

2. The method according to claim 1, characterized in that The bus voltage value includes the bus voltage target value issued by the master station and the real-time bus first voltage value and bus second voltage value before and after the AVC automatic adjustment. The data tag group for data query is determined according to the bus voltage value, including: Determining a bus voltage adjustment amplitude according to the first bus voltage value and the second bus voltage value; The bus voltage target value and the bus voltage adjustment amplitude are used to construct a binary data set as a data label group; wherein the bus voltage target value is the first element in the binary data set.

3. The method according to claim 1, characterized in that The matching of the unit operating data of each unit with the reactive power adjustment value of the corresponding unit to generate paired adjustment data includes: Pre-generate a data storage structure according to the number of units in the substation, wherein the data storage structure includes at least a first structure element and a second structure element, wherein the first structure element and the second structure element both contain data storage bits equal to the number of units; Writing the unit operating condition data into each data storage bit of the first structural element in sequence according to the numbering sequence of each unit; In the same order, the reactive power adjustment values ​​corresponding to the unit operating condition data are written into the respective data storage bits of the second structure element in turn to obtain paired adjustment data.

4. The method according to any one of claims 1 to 3, characterized in that: When receiving the AVC automatic adjustment information sent by the master station, generating a target adjustment instruction according to the AVC automatic adjustment information and the stored adjustment reference data, including: When receiving the AVC automatic adjustment information sent by the master station, generating a reactive power adjustment instruction according to the AVC automatic adjustment information; Determining the feasibility of the reactive power regulation instruction according to the stored regulation reference data, wherein the feasibility is represented by a probability value; When the probability value representing the feasibility is greater than a preset threshold, a target adjustment instruction is generated based on the reactive power adjustment instruction; otherwise, the reactive power adjustment instruction is regenerated and the feasibility of the regenerated reactive power adjustment instruction is determined.

5. The method according to claim 4, characterized in that Determining the feasibility of the reactive power regulation instruction according to the stored regulation reference data includes: generating a screening tag group for data screening according to the AVC automatic adjustment information; Using the screening tag group to preliminarily screen the forward reference data to obtain candidate reference data; Acquire current operating condition data of each unit in the substation, wherein the current operating condition data is obtained after standardization of the current operating condition of each unit; Determining target reference data from the candidate reference data according to the current operating condition data; Based on the target reference data, the feasibility of the reactive power regulation instruction is determined.

6. The method according to claim 5, characterized in that After determining the feasibility of the reactive power regulation instruction based on the target reference data, the method further includes: Searching for similar reference data from the reverse reference data according to the screening tag group and the current operating condition data; If the similar reference data is found in the reverse reference data, the feasibility of the reactive power regulation instruction is corrected using the similar reference data.

7. A data processing device based on substation automatic voltage control results, characterized in that: include: An acquisition module is used to acquire the adjustment data of the AVC automatic adjustment after the substation AVC automatic adjustment is completed, and the adjustment data at least includes the bus voltage value and the reactive adjustment value of each unit in the substation; A determination module, used to determine a data tag group for data query according to the bus voltage value; A storage module is used to determine the operating conditions of each unit in the substation before the current AVC automatic adjustment, and uniformly standardize the operating conditions of each unit before the current AVC automatic adjustment to obtain unit operating data; match the unit operating data of each unit with the reactive power adjustment value of the corresponding unit to generate paired adjustment data; use the data tag group as a key, the paired adjustment data as the value corresponding to the key, and generate adjustment reference data in the form of a key-value pair, the adjustment reference data is marked as forward reference data or reverse reference data, the forward reference data is used to characterize the success of the current AVC automatic adjustment, and the reverse reference data is used to characterize the failure of the current AVC automatic adjustment; according to the adjustment result of the current AVC automatic adjustment, the adjustment reference data is stored in the corresponding first database or second database respectively; wherein the first database is used to store forward reference data, and the second database is used to store reverse reference data; A generating module, configured to generate a target adjustment instruction according to the AVC automatic adjustment information and the stored adjustment reference data when receiving the AVC automatic adjustment information sent by the master station; The regulating module is used to regulate the reactive power of each unit in the substation based on the target regulating instruction.

8. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the data processing method based on the substation automatic voltage control result as described in any one of claims 1 to 6 is implemented.

9. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the data processing method based on the substation automatic voltage control result as described in any one of claims 1 to 6 is implemented.

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