A comprehensive energy accounting method based on full-voltage topology islands

Abstract

This invention provides a comprehensive power consumption calculation method based on all-voltage topology islands. Specifically, the method involves identifying the regional power grid for power consumption calculation, acquiring the regional power grid's power data, building a distributed search and analysis engine, analyzing the power transmission process based on the regional power grid's power data, constructing a power consumption tracing algorithm based on the analysis results, statistically analyzing the power consumption of each topology island within the regional power grid using the distributed search and analysis engine and the constructed power consumption tracing algorithm, and summarizing the statistical results of the power consumption of each topology island within the regional power grid to obtain the power consumption calculation result of the regional power grid. This invention analyzes the flow of power in the power grid based on topology islands of all voltage levels and uses a distributed search and analysis engine to match power consumption data, ensuring the completeness and accuracy of power grid power consumption data and further improving data matching degree and efficiency.

Description

Technical Field

[0001] This invention relates to the field of energy consumption accounting technology, and in particular to a full-caliber energy consumption accounting method based on a full-voltage topology island. Background Technology

[0002] With social and economic development, GDP growth, and changes in industrial structure, electricity load is constantly increasing. Power companies need to plan urban power grid construction based on electricity load and power data. Big data technology can provide power companies with the data required for urban power grid construction. Under the trend of big data, allocating network input and output efficiency can effectively improve the rationality of power grid planning, operation efficiency, and line losses, reduce regional fault reports and complaints, strengthen power business expansion, business clustering and correlation analysis, enhance problem analysis, and compare power supply capacity and power quality improvements, ensuring lean management, meticulous operation, and maintenance of power grid equipment.

[0003] Currently, the power grid's method of analyzing electricity consumption is relatively simplistic, primarily relying on data from grid dispatching gateways. This data is matched with line names to associate electricity consumption with equipment, thus determining the grid's overall electricity consumption. However, this method only provides a single perspective for electricity consumption calculation and cannot comprehensively calculate the electricity consumption of the entire power grid, failing to guarantee the integrity of the grid's electricity consumption and potentially leading to data gaps. Furthermore, given the vast amount of grid gateway data, directly matching it with line names is inefficient, has a high error rate, low matching accuracy, and results in unreliable electricity consumption statistics. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a comprehensive power consumption calculation method based on full-voltage topology islands. This method can analyze the flow of power in the power grid based on topology islands of all voltage levels, and achieve power consumption data matching through a distributed search and analysis engine. This solves the problems of existing power consumption analysis methods, which can only calculate power consumption data from a single perspective and cannot fully statistically analyze the power consumption of the entire power grid, as well as the problems of low matching degree and low accuracy of power consumption statistics results caused by matching power consumption data only by line name. This invention ensures the integrity and accuracy of power grid power consumption and further improves data matching degree and matching efficiency.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A method for calculating total electrical quantity based on a full-voltage topology island, characterized by comprising:

[0007] Identify the regional power grid for power accounting, acquire the power data of the regional power grid, build a distributed search and analysis engine, and analyze the power transmission process based on the power data of the regional power grid.

[0008] A power traceability algorithm is constructed based on the analysis results of the power transmission process;

[0009] The distributed search and analysis engine uses the constructed power tracing algorithm to statistically analyze the power consumption of each topological island in the regional power grid.

[0010] The power consumption statistics of each topological island within the regional power grid are summarized to obtain the power consumption calculation results of the regional power grid.

[0011] Furthermore, the power data includes power grid equipment ledger data, power grid topology island data, gateway tables, transformer area data, and user data obtained from the data platform, as well as feeder data, distribution transformer data, and line-transformer relationship data obtained from the power grid resource business platform.

[0012] Furthermore, the specific process of power transmission based on the power data analysis of the regional power grid is as follows: Based on user data, the power users of the regional power grid are determined. Simultaneously, based on the power grid topology island data, the topology islands of different voltage levels in the regional power grid are determined, along with the connection relationships between the topology islands of each voltage level and the direction of power flow. The topology islands of each voltage level are then constructed according to the parent-child relationship of power flow, and the topology island link relationships are established based on the topology island network. Power users are matched with topology islands to determine the voltage level topology island corresponding to each power user. After determining the connection relationships between power users and topology islands, as well as the connection relationships between topology islands of different voltage levels, external power is input from the topology island of the highest voltage level and transmitted according to the connection relationships between the topology islands to supply power to the power users.

[0013] Furthermore, when calculating electricity consumption using the distributed search and analysis engine based on the constructed electricity consumption tracing algorithm, the topology links within the topology island network are determined according to the communication relationships between the topology islands. The electricity consumption data for each topology island link is determined according to the electricity consumption tracing algorithm corresponding to that link. Simultaneously, the corresponding electricity consumption tracing algorithm is determined based on the type of electricity user, and the matching relationship between electricity users and topology islands is retrieved. The electricity consumption data of electricity users is associated with the corresponding topology islands. After determining the electricity consumption data for each electricity user based on the electricity consumption tracing algorithm corresponding to that user, the electricity consumption data for each user is aggregated to the corresponding topology island.

[0014] Furthermore, the power tracing algorithm includes an inter-grid power calculation algorithm, a power plant power calculation algorithm, a dedicated account power calculation algorithm, and a residential user power calculation algorithm.

[0015] Furthermore, the circulating power of the topology island links is statistically analyzed using an inter-network power calculation algorithm. The specific process of statistically analyzing the circulating power of the topology island links using the inter-network power calculation algorithm is as follows: Based on the feeder data of the regional power grid, the transmission line and substation corresponding to each topology island link are determined, and the names of the transmission line and substation are used as matching objects. The power data corresponding to the transmission line and substation are obtained from the gateway table using a distributed search and analysis engine, and the circulating power data on each topology island link is determined.

[0016] Furthermore, the electricity consumption data of power users is matched with the corresponding topological islands through power plant electricity consumption calculation algorithms, dedicated account electricity consumption calculation algorithms, and residential user electricity consumption calculation algorithms, and the electricity consumption data of power users is summarized into the corresponding topological islands.

[0017] The beneficial effects of this invention are:

[0018] It can analyze the power transmission process of the power grid based on the full-voltage topology island, thereby achieving a comprehensive statistical analysis of power grid power. This avoids the incomplete power statistics caused by single-caliber power accounting, ensuring the integrity and accuracy of power data. Furthermore, it can match power data through a distributed search and analysis engine, which, compared to matching power data by line name, improves the matching accuracy and efficiency, thus enhancing the accuracy of power statistics. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a process of the present invention;

[0020] Figure 2 This is a schematic diagram of the power transmission process of a regional power grid according to an embodiment of the present invention. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Example:

[0023] A comprehensive energy accounting method based on a full-voltage topology island, such as... Figure 1 As shown, it includes:

[0024] Identify the regional power grid for power accounting, acquire the power data of the regional power grid, build a distributed search and analysis engine, and analyze the power transmission process based on the power data of the regional power grid.

[0025] A power traceability algorithm is constructed based on the analysis results of the power transmission process;

[0026] The distributed search and analysis engine uses the constructed power tracing algorithm to statistically analyze the power consumption of each topological island in the regional power grid.

[0027] The power consumption statistics of each topological island within the regional power grid are summarized to obtain the power consumption calculation results of the regional power grid.

[0028] The distributed search and analysis engine (ElasticSearch) is a distributed, highly scalable, and real-time search and data analysis engine. This tool boasts powerful word segmentation and fuzzy matching capabilities, significantly improving analysis speed and matching accuracy. With the growth of power systems, the amount of stored power data is also increasing, and the distributed search and analysis engine can adapt to data matching scenarios involving large volumes of data.

[0029] The power data includes power grid equipment ledger data, power grid topology island data, gateway tables, transformer area data, and user data obtained from the data platform, as well as feeder data, distribution transformer data, and line-transformer relationship data obtained from the power grid resource business platform.

[0030] Taking the matching of electricity data within the gateway table using a distributed search and analysis engine as an example, the specific process of matching electricity data using a distributed search and analysis engine is as follows:

[0031] The gateway table data is organized according to the data model of the distributed search and analysis engine and imported into the distributed search and analysis engine's database. A match query logic for the distributed search and analysis engine is then constructed. This match query logic can employ different query methods based on the type of the queried field. For example, when querying date or numeric fields, it can automatically convert the input string query content into a date or numeric value. If the query content is a field that cannot be segmented, such as a single word, the match query will directly query according to the input string. If the query content can be segmented, such as a string, the match query will segment the input query content according to a certain method and then match the specified content in the segmentation library to determine the query subject. After determining the query subject, it is matched against the gateway table to determine the corresponding electricity data.

[0032] Taking a regional power grid as an example, this regional power grid includes 500kV, 220kV, 110kV, 35kV, and 10kV topologies. The electricity users in this regional power grid include local power plants, dedicated accounts, and residential electricity consumption. Local power plants mainly refer to wind power plants and thermal power plants with voltage levels of 35kV and above. Dedicated accounts refer to the electricity consumption of large industrial and commercial users, while residential electricity consumption is generally below 10kV.

[0033] The specific process of power transmission based on power data analysis of the regional power grid is as follows: Based on user data, the power users of the regional power grid are determined. Simultaneously, based on the power grid topology island data, the topology islands of different voltage levels in the regional power grid are determined, along with the interconnections between these topology islands and the direction of power flow. A topology island network is constructed according to the parent-child relationship of power flow between the topology islands of each voltage level. Based on this network, topology island link relationships are established, and power users are matched with topology islands to determine the voltage level topology island corresponding to each power user. After determining the connection relationships between power users and topology islands, as well as the interconnections between topology islands of different voltage levels, external power is input from the topology island of the highest voltage level and transmitted according to the interconnections between the topology islands to supply power to the power users.

[0034] The specific power transmission process of the power grid in this area is as follows: Figure 2 As shown.

[0035] When calculating electricity consumption using the distributed search and analysis engine based on the constructed electricity consumption tracing algorithm, the topology links within the topology island network are determined according to the communication relationships between topology islands. The electricity consumption data for each topology island link is determined according to the electricity consumption tracing algorithm corresponding to that link. Simultaneously, the corresponding electricity consumption tracing algorithm is determined based on the type of electricity user, and the matching relationship between electricity users and topology islands is retrieved. The electricity consumption data of electricity users is associated with the corresponding topology islands. After determining the electricity consumption data for each electricity user based on the electricity consumption tracing algorithm corresponding to that user, the electricity consumption data for each user is aggregated to the corresponding topology island.

[0036] The power tracing algorithm includes an inter-grid power calculation algorithm, a power plant power calculation algorithm, a dedicated account power calculation algorithm, and a residential user power calculation algorithm.

[0037] The power flow through topology island links is statistically analyzed using an inter-network power calculation algorithm. The specific process is as follows: Based on the feeder data of the regional power grid, the transmission line and substation corresponding to each topology island link are determined. The names of the transmission line and substation are used as matching objects. The power flow data corresponding to the transmission line and substation are retrieved from the gateway table using a distributed search and analysis engine. The power flow data on each topology island link is then determined. Here, the query subjects of the distributed search and analysis engine are the names of the transmission line and substation.

[0038] The electricity consumption data of power users is matched with the corresponding topological islands through power plant electricity consumption calculation algorithms, dedicated account electricity consumption calculation algorithms and residential user electricity consumption calculation algorithms, and the electricity consumption data of power users is summarized into the corresponding topological islands.

[0039] Power plant electricity generally refers to the electricity fed into the grid by local power plants with voltage levels of 35kV and above. This electricity serves as one of the input sources for the topology island's electricity. However, the data from the gateway meters is severely lacking in the statistical analysis of power plant lines, making it impossible to obtain electricity from many small local power plants. Consequently, the complete input electricity for the topology island cannot be guaranteed. Therefore, this data needs to be calculated and statistically analyzed separately. The electricity fed into the grid by local power plants is typically stored in the generator ledger of the marketing system and is statistically analyzed monthly according to the form of user-generated electricity. Based on this, when associating the electricity of local power plants with the topology island, it is necessary to establish a relationship between local power plants and substations. In the marketing system, there exists a power supply relationship table. This table allows us to obtain the association between users and substations. However, because the data attributes of the marketing system and the PMS system differ, and the substation attributes obtained from the power supply relationship table are custom attributes of the marketing system, there are inconsistencies or missing IDs between these and the substation IDs in the PMS system. Therefore, it is necessary to associate the substations in the PMS system with those in the marketing system. This process is similar to the gate table matching mode. It can be achieved by constructing a distributed search and analysis engine with match query logic to match the substations in the two systems, thereby associating the power output of the power plant with the substations on the topology island, and ultimately aggregating it to the corresponding topology island.

[0040] Specialized electricity accounts typically represent the electricity consumption of large industrial and commercial users. However, much of the dedicated line data for these accounts is not archived in the system, preventing them from being linked through substation outgoing lines. Despite this, these accounts represent the core output points of the entire power grid; their loss would cause a severe mismatch between input and output electricity. To ensure the integrity of the electricity data, specialized account electricity needs to be independently statistically analyzed. Firstly, the electricity and charges for specialized accounts, along with those for ordinary residents, are stored monthly in the marketing system. Users can also be linked to substations or distribution areas via power supply meters. Based on the different voltage levels accessed by specialized users, they are divided into two categories: high-voltage specialized accounts (10kV and above) and low-voltage specialized accounts (below 10kV). High-voltage specialized accounts can be directly linked to the topology island through associated substations, thus enabling the aggregation of their electricity data. This linking process is similar to that used for power plant electricity. Once the associated distribution area is determined, low-voltage dedicated accounts can be matched with the corresponding distribution transformer through the operation and distribution connection, and then matched to the corresponding topology island according to the distribution transformer, thus completing the tracing and aggregation of the dedicated account's electricity on the topology island.

[0041] Residential user electricity consumption is generally the electricity consumption of users below 10kV who belong to the ordinary residential electricity consumption type. The method of summarizing residential electricity consumption is similar to the summarization of low-voltage special account electricity consumption. First, the residential user is associated and matched with the distribution area through the power supply meter. Then, the distribution area is matched with the distribution transformer through the operation and distribution connection relationship. Thus, the electricity consumption is matched to the corresponding topology island according to the distribution transformer, and the electricity consumption is summarized.

[0042] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A method for calculating total electrical quantity based on a full-voltage topology island, characterized in that, include: Identify the regional power grid for power accounting, acquire the power data of the regional power grid, build a distributed search and analysis engine, and analyze the power transmission process based on the power data of the regional power grid. A power traceability algorithm is constructed based on the analysis results of the power transmission process; The distributed search and analysis engine uses the constructed power tracing algorithm to statistically analyze the power consumption of each topological island in the regional power grid. The power consumption statistics of each topological island within the regional power grid are summarized to obtain the power consumption calculation results of the regional power grid. By constructing a distributed search and analysis engine with match query logic, the query subject is determined, and the corresponding electricity data is determined based on the matching of the query subject; The specific process of power transmission based on power data analysis of the regional power grid is as follows: Based on user data, the power users of the regional power grid are determined. Simultaneously, based on the power grid topology island data, the topology islands of different voltage levels in the regional power grid are determined, along with the interconnections between these topology islands and the direction of power flow. A topology island network is constructed according to the parent-child relationship of power flow between the topology islands of each voltage level. Based on this network, topology island link relationships are established, and power users are matched with topology islands to determine the voltage level topology island corresponding to each power user. After determining the connection relationships between power users and topology islands, as well as the interconnections between topology islands of different voltage levels, external power is input from the topology island of the highest voltage level and transmitted according to the interconnections between the topology islands to supply power to the power users.

2. The method for calculating total electrical quantity based on a full-voltage topology island as described in claim 1, characterized in that, The power data includes power grid equipment ledger data, power grid topology island data, gateway tables, transformer area data, and user data obtained from the data platform, as well as feeder data, distribution transformer data, and line-transformer relationship data obtained from the power grid resource business platform.

3. The method for calculating total electrical quantity based on a full-voltage topology island according to claim 2, characterized in that, When calculating electricity consumption using the distributed search and analysis engine based on the constructed electricity consumption tracing algorithm, the topology links within the topology island network are determined according to the communication relationships between topology islands. The electricity consumption data for each topology island link is determined according to the electricity consumption tracing algorithm corresponding to that link. Simultaneously, the corresponding electricity consumption tracing algorithm is determined based on the type of electricity user, and the matching relationship between electricity users and topology islands is retrieved. The electricity consumption data of electricity users is associated with the corresponding topology islands. After determining the electricity consumption data for each electricity user based on the electricity consumption tracing algorithm corresponding to that user, the electricity consumption data for each user is aggregated to the corresponding topology island.

4. The method for calculating total electrical quantity based on a full-voltage topology island according to claim 3, characterized in that, The power tracing algorithm includes an inter-grid power calculation algorithm, a power plant power calculation algorithm, a dedicated account power calculation algorithm, and a residential user power calculation algorithm.

5. The method for full-caliber energy accounting based on a full-voltage topology island as described in claim 4, characterized in that, The power flow through topology island links is statistically analyzed using an inter-network power calculation algorithm. The specific process is as follows: Based on the feeder data of the regional power grid, the transmission lines and substations corresponding to each topology island link are determined. The names of the transmission lines and substations are used as matching objects. The power data corresponding to the transmission lines and substations are retrieved from the gateway table using a distributed search and analysis engine to determine the power flow data on each topology island link.

6. The method for full-caliber energy calculation based on a full-voltage topology island as described in claim 4, characterized in that, The electricity consumption data of power users is matched with the corresponding topological islands through power plant electricity consumption calculation algorithms, dedicated account electricity consumption calculation algorithms and residential user electricity consumption calculation algorithms, and the electricity consumption data of power users is summarized into the corresponding topological islands.

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