Broadband carrier intelligent transformer area management unit

Abstract

The invention relates to the technical field of intelligent management of a power system, and discloses a broadband carrier intelligent transformer area management unit, which comprises a concentrator used for collecting power utilization data of a terminal user; the carrier routing module is used for establishing a communication link through a power line and transmitting the power utilization data to the concentrator and the intelligent management unit; and the intelligent management unit is used for accurately calculating and analyzing line loss of branches, segments, phases and time of the transformer area and realizing accurate judgment and positioning of line loss reasons, and the intelligent management unit comprises an embedded ARM (Advanced RISC Machines) processor. Through combination of the intelligent management unit and the broadband carrier communication technology, accurate line loss calculation and analysis of the low-voltage transformer area are realized, an electric power company is helped to optimize operation management, energy waste is reduced, the system has high reliability and stability, intelligent fault diagnosis, automatic monitoring and alarm functions are provided, the maintenance process is simplified, the operation and maintenance cost is reduced, and the system is suitable for popularization and application. And meanwhile, energy conservation and emission reduction targets are supported, and green power grid construction is promoted.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent management of power systems, and specifically to a broadband carrier intelligent substation area management unit. Background Art

[0002] With the rapid development of smart grids, low-voltage power consumption information acquisition systems have gradually become important tools for improving the operation efficiency and management level of power grids. These systems collect users' power consumption data through concentrators and carrier communication modules, providing basic support for the daily operation and maintenance of power grids. However, with the growth of power consumption demand and the improvement of the refined requirements for power grid management, existing systems are unable to cope in terms of the accuracy, real-time performance, and intelligent analysis capabilities of data acquisition, especially in areas such as in-substation area line loss analysis, fault diagnosis, and optimization management, where there is still much room for improvement.

[0003] In the design of existing low-voltage substation area power consumption information acquisition systems, they usually focus on the basic data transmission and storage functions and can meet the basic power consumption information acquisition requirements. However, in actual applications, these systems cannot fully support accurate branch, section, phase, and time-of-use line loss calculations and analyses, and have limited capabilities in diagnosing complex line loss problems. In addition, the real-time performance of existing systems is poor, unable to respond promptly to rapidly changing power grid conditions, and at the same time, the maintenance cost is high, increasing the operation and maintenance pressure on power companies.

[0004] To solve the above problems, some improvement measures have been taken in the industry, such as enhancing the data processing capabilities of concentrators, adopting higher-frequency carrier communication technologies, and adding sensor devices. Although these measures have improved the system performance to a certain extent, they have also led to a significant increase in the complexity and cost of the system, and the transformation difficulty of traditional systems is high, still unable to fully meet the actual needs.

[0005] In view of the deficiencies of the existing technology, the present invention proposes a broadband carrier intelligent substation area management unit. Summary of the Invention

[0006] In view of the deficiencies of the existing technology, the present invention provides a broadband carrier intelligent substation area management unit, which solves the problems of insufficient accurate calculation of in-substation area line loss, cause analysis, fault diagnosis, and real-time performance and intelligent management capabilities of existing low-voltage power consumption information acquisition systems.

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions: The broadband carrier intelligent substation area management unit includes: A concentrator for collecting the power consumption data of end users; A carrier routing module for establishing a communication link through the power line to transmit the power consumption data to the concentrator and the intelligent management unit; The intelligent management unit is used to accurately calculate and analyze the line losses of the sub - regions, segments, phases, and time periods of the substation, and achieve accurate judgment and positioning of the causes of line losses.

[0008] Preferably, the intelligent management unit includes: An embedded ARM processor, which is used to support multi - task concurrent processing; A high - speed memory, whose capacity ranges from 64 MB to 512 MB; A data communication interface, which is used to achieve data transmission and system interconnection.

[0009] Preferably, the data communication interface includes a WiFi interface, a USB interface, and a serial communication port.

[0010] Preferably, the intelligent management unit integrates an embedded processor and a line - loss calculation algorithm.

[0011] Preferably, the intelligent management unit comprehensively analyzes the collected current, voltage, and power data through the built - in line - loss calculation algorithm, and generates a line - loss analysis report including the following content: The line - loss values of each branch node; The line - loss trend prediction of each segment; The energy consumption distribution of each phase.

[0012] Preferably, the formula for calculating the line - loss value of the branch is as follows: ; Wherein, is the total loss of the branch line, is the total power supply of the LTU, is the sold electricity of each electricity meter in the branch, is the sold electricity of the th electricity meter, is the total number of electricity meters.

[0013] Preferably, the formula for calculating the line - loss of the time period is as follows: = ; Wherein, is the total line - loss during the time period, is the end time point of the time period, is the start time point of the time period, and are the power supply amount data and the sold electricity amount data at the same time point respectively.

[0014] Preferably, the formula for calculating the line - loss of each phase is as follows: ; Wherein, is the total line loss of the A / B / C phase-split line, is the total power supply of the LTU A / B / C phase-split, is the electricity sales volume of each electricity meter for the A / B / C phase-split, is the electricity sales volume of the A / B / C phase-split of the th electricity meter, where

[0015] is the total number of electricity meters, and A / B / C are phase identifiers. 1. By combining the intelligent management unit with broadband carrier communication technology, the present invention can achieve accurate line loss calculation and analysis for sub-branches, sub-sections, phase-splits, and time-sharing in the substation area, and provide a detailed energy consumption status report. This high-precision management effectively reduces energy waste, helps power companies optimize operation strategies, and improves the management efficiency of the substation area.

[0016] 2. The present invention adopts broadband carrier communication technology and an embedded processor, improving the reliability and stability of the system in a complex power grid environment. Combining with the intelligent fast fault diagnosis and location function, it can significantly shorten the maintenance response time, reduce the economic and social impacts caused by power outages. At the same time, the automated monitoring and alarm mechanism simplifies the maintenance process, reduces the number of manual interventions, and lowers the operation and maintenance costs.

[0017] 3. Through automated analysis, long-term online monitoring, and intelligent alarm functions, the present invention simplifies the daily maintenance process of the power system, reduces manual intervention and operation and maintenance costs. The accurate line loss analysis and energy-saving strategy support effectively assist power companies in achieving energy conservation and emission reduction goals, promoting the construction of green power grids, and enhancing the public's support for green power. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the framework diagram of the system of the present invention; Figure 2 is the flow chart of the system of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to the attached Figure 1 and the attached Figure 2 , the embodiments of the present invention provide a broadband carrier intelligent substation area management unit, including: A concentrator for collecting power consumption data of end users; A carrier routing module for establishing a communication link through the power line to transmit power consumption data to the concentrator and the intelligent management unit; An intelligent management unit for accurately calculating and analyzing the line losses of branch, section, phase, and time in the substation area, and realizing the accurate judgment and positioning of the causes of line losses.

[0021] Specifically, for the above content, the present invention provides a broadband carrier intelligent substation area management unit, which mainly realizes the efficient collection, transmission, and accurate analysis of power consumption data in the substation area through the collaborative work of a concentrator, a carrier routing module, and an intelligent management unit. This design can not only meet the basic requirements of low-voltage power line data transmission, but also accurately calculate and analyze the branch, section, phase, and time line losses, providing technical support for the intelligentization and high efficiency of substation area management.

[0022] In this embodiment, the concentrator is used to collect the power consumption data of end users. It adopts high-performance equipment that complies with the State Grid standards, can operate stably for a long time, and ensure the reliability of data. The concentrator receives user data through the carrier routing module and synchronously transmits it to the intelligent management unit. This module uses broadband carrier communication technology, and the communication rate can reach more than 500 kbps, which can adapt to the high-frequency data exchange requirements in complex power grid environments and ensure the stability and efficiency of the communication link.

[0023] The intelligent management unit is the core component of the entire system. It is built with an embedded ARM processor, has the ability to handle multiple tasks concurrently, and stores and processes a large amount of data through a high-speed memory (with a capacity range of 64 MB to 512 MB). Through data communication interfaces (including WiFi interfaces, USB interfaces, and serial communication ports), the intelligent management unit realizes the interconnection and efficient data exchange with other system components. The system deeply analyzes the collected current, voltage, and power data, and generates a detailed analysis report based on the line loss calculation formula.

[0024] The analysis report generated by the intelligent management unit based on the above algorithm includes the line loss values of each branch in the substation area, the prediction of the section line loss trend, and the energy consumption distribution of each phase. At the same time, combined with historical data, this unit can accurately locate the causes of line losses and the fault locations, providing comprehensive support for the substation area line loss management of power companies. Through the technical solution of the present invention, without interfering with the existing power consumption information collection service, the accuracy and practicality of power consumption information collection can be greatly improved, and the efficient management of power grid operation can be realized.

[0025] The intelligent management unit includes: An embedded ARM processor for supporting multi-task concurrent processing; A high-speed memory with a capacity range of 64 MB to 512 MB; A data communication interface for realizing data transmission and system interconnection.

[0026] The data communication interface includes a WiFi interface, a USB interface, and a serial communication port.

[0027] Specifically, for the above content, the intelligent management unit in the present invention is the core module of the system, responsible for the efficient processing and analysis of power consumption data in the substation area. This unit is designed with an embedded ARM processor as the center, equipped with a large-capacity high-speed memory and various data communication interfaces, providing strong support for the calculation and analysis of branch, section, phase, and time-of-use line losses in the substation area. At the same time, the flexible interface configuration and multi-task concurrent processing ability ensure the efficient cooperation of the system with other components.

[0028] In this embodiment, the intelligent management unit adopts an embedded ARM processor, which can support multi-task concurrent processing to ensure the stable operation of the system in complex application scenarios. The design of the processor meets the requirements of low power consumption and high performance, adapts to various real-time data processing tasks, and provides core computing power support for the real-time calculation and analysis of substation area data.

[0029] The capacity range of the high-speed memory is from 64 MB to 512 MB, which can store large-scale historical data and real-time acquisition data to support the efficient data call and operation required for line loss analysis. The memory adopts a highly reliable design, can maintain data integrity for a long time, and supports the rapid recovery of the system in case of emergencies.

[0030] The data communication interface is designed flexibly, including a WiFi interface, a USB interface, and a serial communication port, providing multiple selection schemes for the interconnection and interoperability of the system. The WiFi interface supports wireless data transmission and is suitable for scenarios with flexible network deployment; the USB interface can be connected to external devices for data export or software update; the serial communication port provides a traditional wired connection method and is suitable for environments with high stability requirements.

[0031] The intelligent management unit realizes efficient interconnection with the concentrator and the carrier routing module through various interfaces, and accurately calculates the branch, section, phase, and time-of-use line losses of the collected data. Taking the calculation of branch line loss as an example, its calculation formula is: ; where is the total loss of the branch line, is the total power supply of the LTU, is the sold electricity of each electricity meter in the branch, is the sold electricity of the th electricity meter, is the total number of electricity meters. Through this formula, the intelligent management unit can quickly obtain the line loss situation of each branch.

[0032] In addition, the intelligent management unit adopts a modular design, and each component such as the processor model, memory capacity, and interface type can be flexibly adjusted according to requirements. For example, the processor can be selected from models such as Cortex-A9 or Cortex-A7, the memory capacity can be adjusted between 64MB and 512MB, and the interface configuration can be increased or decreased to meet the requirements of specific layout scenarios. This ensures the scalability and applicability of the system and meets the diverse power grid operation requirements.

[0033] The intelligent management unit integrates an embedded processor and a line loss calculation algorithm.

[0034] Through the built-in line loss calculation algorithm, the intelligent management unit comprehensively analyzes the collected current, voltage, and power data to generate a line loss analysis report including the following content: The line loss value of each branch node; The line loss trend prediction of each section; The energy consumption distribution of each phase.

[0035] The calculation formula for the line loss of a branch is as follows: ; Where, is the total loss of the branch line, is the total power supply of the LTU, is the sold electricity of each electricity meter in the branch, is the sold electricity of the th electricity meter, and

[0036] is the total number of electricity meters. Through this formula, the intelligent management unit can quickly obtain the line loss situation of each branch. = ; Where, is the total line loss during the time period, is the end time point of the time period, is the start time point of the time period, and are the power supply data and sold electricity data at the same time point respectively.

[0037] The calculation formula for the line loss of each phase is as follows: ; Where, is the total line loss of the A / B / C phase line, is the total power supply of the LTU A / B / C phase, is the sold electricity of each electricity meter A / B / C phase, is the A / B / C phase-by-phase electricity sales volume of the th electricity meter, is the total number of electricity meters, and A / B / C are phase identifiers.

[0038] Specifically, the intelligent management unit is the core component of the present invention. Through the integrated embedded processor and line loss calculation algorithm, it comprehensively analyzes and processes the collected data such as current, voltage, and power, and generates a detailed line loss analysis report. These reports cover the line loss values of branch nodes, the line loss trend prediction of segments, and the energy consumption distribution of each phase, showing the line energy consumption from multiple angles and providing basic data support for the optimized management of the power grid. The following combines the content of the technical solution to elaborate in detail the implementation methods and calculation methods of each analysis.

[0039] In this embodiment, the branch line loss is an important indicator for analyzing the losses of each branch line, and its calculation formula is: ; Among them, is the total loss of the branch line, is the total power supply of the LTU, is the electricity sales volume of each electricity meter in the branch, is the th electricity meter's electricity sales volume, is the total number of electricity meters.

[0040] In practical applications, the intelligent management unit collects the current and resistance values of each branch through the carrier routing module and substitutes them into the above formula to calculate the line loss data of each branch one by one. The calculation results are presented in the form of a bar chart, intuitively reflecting the loss degrees of different branches. Combining this data, the power company can quickly lock in the high-energy-consuming branch lines and formulate targeted optimization plans.

[0041] In this embodiment, the time-sharing line loss reflects the line power loss during a specific time period and is used to analyze peak electricity consumption and abnormal energy consumption periods. Its calculation formula is: = ; Among them, is the total line loss during the time period, is the end time point of the time period, is the start time point of the time period, and are the power supply data and electricity sales data at the same time point respectively.

[0042] To achieve time-sharing line loss calculation, the intelligent management unit sets a fixed sampling frequency, records the electricity consumption in real time within a time interval, and calculates the total loss through the summation method. The obtained data is plotted into a trend chart to identify peak electricity consumption periods, abnormal power consumption periods, and other key nodes. The analysis results provide a reference basis for further optimizing power consumption scheduling and load distribution.

[0043] In this embodiment, the phase line loss is used to analyze the loss and load balance of each phase in the three-phase line. The calculation formula is as follows: ; Among them, is the total line loss of the A / B / C phase-separated lines, is the total power supply of the LTU A / B / C phases, and is the electricity sales volume of each electricity meter's A / B / C phases, is the th electricity meter's electricity sales volume of the A / B / C phases, is the total number of electricity meters, and A / B / C are phase identifiers.

[0044] The intelligent management unit monitors the current and resistance values of each phase in real time through multi-phase synchronous data acquisition, and substitutes them into the above formula for line loss calculation. At the same time, the unit can identify whether the load of each phase is balanced and give load adjustment suggestions. If the three-phase load imbalance is serious, it may lead to equipment overload or increased power loss. Therefore, this analysis function is crucial for the stability of power grid operation.

[0045] If the phase unbalance degree is a key monitoring index, it can be expressed as: ; Generation of line loss analysis report: Based on the above calculations of branch line loss, time-sharing line loss, and phase line loss, the intelligent management unit automatically generates a comprehensive analysis report, which specifically includes: A bar chart of line loss at branch nodes, used to display the energy consumption distribution of each branch; A trend change chart of time-sharing line loss to locate peak and abnormal periods; A distribution table of phase line loss, showing the analysis results of the load balance of the three-phase line; Comprehensive optimization suggestions, used to guide maintenance personnel for equipment adjustment and energy consumption optimization.

[0046] The above content is efficiently completed by the processor of the intelligent management unit, and the embedded algorithm is used to ensure the accuracy of calculation and the timeliness of analysis. These results provide important data support for improving the operation efficiency and power consumption quality of the power grid.

[0047] Working Principle: The broadband carrier intelligent substation management unit forms an efficient power consumption information collection and analysis system based on the close cooperation of three parts: the concentrator, the carrier routing module, and the intelligent management unit. When the system is running, the power consumption data of end-users is transmitted to the carrier routing module through the low-voltage power line. The routing module uses broadband carrier communication technology to establish a stable communication link and transmits the data to the concentrator and the intelligent management unit. In this process, the high transmission rate of the carrier routing module enables it to adapt to the high-frequency data exchange requirements in complex power grid environments.

[0048] As the data collection center of the system, the concentrator ensures the integrity and reliability of the power consumption data. After the data reaches the intelligent management unit, this unit deeply analyzes elements such as current, voltage, and power in the data through an embedded ARM processor and a high-speed memory. Through the built-in line loss calculation algorithm, the system can accurately calculate the line losses of branches, segments, phases, and time periods in the substation area, and generate a detailed report including branch line loss values, segment trend predictions, and phase-by-phase energy consumption distributions.

[0049] During operation, the intelligent management unit not only completes real-time line loss analysis but also, by combining historical data, uses pattern recognition technology to accurately locate abnormal points and fault causes. At the same time, the system can predict future line loss trends, providing a scientific basis for the energy-saving strategies of power companies. In the event of communication interruption or system anomalies, the intelligent management unit ensures the continuity of data processing through its standby mode.

[0050] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A broadband carrier intelligent area management unit, characterized in that: include: Concentrators, which collect electricity usage data from end users; A carrier routing module is used to establish a communication link through the power line to transmit the power consumption data to the concentrator and the intelligent management unit; The intelligent management unit is used to accurately calculate and analyze the line losses in branches, sections, phases and time periods of the substation area, and to accurately determine and locate the causes of line losses.

2. The broadband carrier intelligent station area management unit according to claim 1, characterized in that: The intelligent management unit comprises: Embedded ARM processor to support multi-task concurrent processing; High-speed memory with capacities ranging from 64GB to 512GB; Data communication interface, used to realize data transmission and system interconnection.

3. The broadband carrier intelligent station area management unit according to claim 1, characterized in that: The data communication interface includes a WiFi interface, a USB interface and a serial communication port.

4. The broadband carrier intelligent station area management unit according to claim 1, characterized in that: The intelligent management unit integrates an embedded processor and a line loss calculation algorithm.

5. The broadband carrier intelligent station area management unit according to claim 4, characterized in that: The intelligent management unit uses the built-in line loss calculation algorithm to comprehensively analyze the collected current, voltage and power data and generate a line loss analysis report including the following contents: Line loss value of each branch node; Line loss trend prediction for each segment; Energy consumption distribution of each phase.

6. The broadband carrier intelligent station area management unit according to claim 1, characterized in that: The line loss value of the branch is calculated as follows: ； in, is the total loss of the branch line, is the total power supply of the LTU, The electricity sales of each meter in the branch, For the The electricity sold by each meter, is the total number of electricity meters.

7. The broadband carrier intelligent station area management unit according to claim 1, characterized in that: The time-sharing line loss calculation formula is as follows: = ； in, is the total bus loss in the time period, is the end time of the time period, is the start time of the time period, and They are the power supply data and power sales data at the same time point respectively.

8. The broadband carrier intelligent station area management unit according to claim 1, characterized in that: The calculation formula of the phase-by-phase line loss is as follows: ； in, is the total bus loss of the A / B / C split-phase line, The total power supply of LTUA / B / C phases, The electricity sales for each meter A / B / C are divided into phases. For the The A / B / C phase electricity sales of each meter, is the total number of electricity meters, and A / B / C is the phase identifier.

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