Power transfer and supply analysis system and method in power grid

By introducing a power supply analysis system for real-time data acquisition and multi-parameter comprehensive evaluation in the power grid, the problem of lack of real-time and adaptability in the existing systems is solved, and the automatic optimization and scientific rationality of the power supply strategy of the power grid is realized, and the economical and power supply quality of the power grid operation are improved.

CN119561064APending Publication Date: 2025-03-04GUIZHOU POWER GRID CO LTD
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Patent Information

Application Number
CN202411712158.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-03-04

AI Technical Summary

Technical Problem

The existing power grid power supply analysis system lacks real-time and adaptability, relies on manual experience to make strategy adjustments, and when evaluating the power supply effect, it usually only considers power supply stability, ignores other important factors such as economy and power supply quality, which leads to the inability to optimize the power supply strategy, which may cause waste of resources and degradation of power supply quality.

Method used

It provides a power supply analysis system in the power grid, including a data acquisition module, a data processing module, an analysis module, an optimization module, a display and alarm module and a communication interface. The system can monitor power grid data in real time, automatically generate optimization plans through comprehensive evaluation of multi-parameters, automatically adjust power supply strategies, and realize real-time monitoring and adaptive adjustment of the power grid.

Benefits of technology

By automatically optimizing the power supply strategy, real-time monitoring and adaptive adjustment of the power grid can be achieved, the automation level of power grid management can be improved, the scientificity and rationality of power supply strategies can be ensured, the economicality and power supply quality of power grid operation can be improved, manual intervention can be reduced, and the efficiency and accuracy of power grid management can be improved.

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Abstract

The invention discloses a power transfer and supply analysis system and method in a power grid, and relates to the technical field of power grid management, and the system comprises an acquisition module, a data processing module, an analysis module, an optimization module, a display and alarm module, and a communication interface. The data acquisition module is used for collecting real-time data of parameters such as voltage, current and power from each node of a power grid; the data processing module carries out filtering, normalization and other processing on the received data so as to facilitate subsequent analysis; the optimization module comprises an analysis and evaluation unit, an adjustment strategy generation unit and an execution unit; the method can adapt to the load change of the power grid, automatically optimize the power supply transfer strategy, realize the real-time monitoring and adaptive adjustment of the power supply transfer process, improve the automation level of power grid management, guarantee the scientificity and rationality of the power supply transfer strategy through multi-parameter comprehensive evaluation, formulate an automatic generation optimization scheme, and improve the efficiency of power grid management. The economical efficiency and the power supply quality of power grid operation are improved, manual intervention is reduced, and the efficiency and the accuracy of power grid management are improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of power grid management, and in particular to a power transfer analysis system and method in a power grid. Background Art

[0002] With the development of the power market, the phenomenon of power transfer in the power grid is becoming more and more common. Power transfer refers to the process of transmitting electricity from one place to another through the power grid. During the operation of the power grid, it is used to continue to provide power supply to affected users through other power supply lines or equipment when a failure or maintenance occurs in part of the power grid. However, the existing power transfer analysis system mostly relies on manual experience to adjust the strategy, lacks real-time and adaptability, and often only considers a single indicator when evaluating the power transfer effect, such as power supply stability, while ignoring other important factors such as economy and power supply quality. This leads to the power transfer strategy often not being optimized, which may cause waste of resources and reduced power supply quality. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above existing problems, the present invention is proposed.

[0005] Therefore, the present invention provides a power transfer analysis system and method in a power grid, which can solve the problems mentioned in the background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] In a first aspect, the present invention provides a power transfer analysis system in a power grid, which includes a data acquisition module, a data processing module, an analysis module, an optimization module, a display and alarm module, and a communication interface;

[0008] The data acquisition module is used to collect real-time power data from various nodes of the power grid;

[0009] The data processing module performs filtering, normalization and other processing on the received data to facilitate subsequent analysis;

[0010] The optimization module includes an analysis and evaluation unit, an adjustment strategy generation unit and an execution unit, which are used to automatically adjust the power supply transfer strategy and automatically generate an optimization plan when the power grid load changes;

[0011] The display and alarm module displays the analysis results and optimization suggestions to the user in the form of graphics or text, and issues an alarm when a serious problem is detected;

[0012] The communication interface is used to communicate with other systems or devices to achieve data sharing and collaborative work.

[0013] As a preferred solution of the power transfer analysis system in the power grid of the present invention, wherein: the real-time power data includes voltage, current and power;

[0014] The real-time data includes grid load, power supply line status and equipment health status.

[0015] As a preferred solution of the power supply analysis system in the power grid described in the present invention, the power grid stability indicators include voltage stability and frequency stability, the economic indicators include power supply cost and line loss, and the power supply quality indicators include voltage fluctuation and harmonic content.

[0016] As a preferred solution of the power transfer analysis system in the power grid of the present invention, the specific method used by the adjustment strategy generation unit to optimize the module includes:

[0017] Mathematical modeling of power supply is carried out to determine the optimization objective function and constraints. The calculation formula is as follows:

[0018] min{C(x)} or max{R(x)}

[0019] stA(x)≤0

[0020] Among them, C(x) is the cost function, R(x) is the reliability function, and A(x) is the constraint matrix;

[0021] Genetic algorithms are used to generate populations through an iterative process, and the performance of each strategy is evaluated using a fitness function. Based on the evaluation results, the algorithm gradually improves the population through selection, crossover, and mutation operations until the optimal strategy is found. The calculation formula is as follows:

[0022] xn+1=select(xn)×crossovex(xn)×mutation(xn)

[0023] in, X n is the current generation strategy, X n+1 is the next generation strategy;

[0024] In each iteration, the adjustment strategy generation unit uses the genetic algorithm to optimize the current population, generate a new generation of strategies, and re-evaluate the performance. This process continues until the preset number of iterations or fitness threshold is met;

[0025] The adjustment strategy generation unit outputs the best power transfer strategy for reference and application by the system operator. The output formula is as follows:

[0026]

[0027] in, X best is the best strategy, f (xn) is the fitness function.

[0028] As a preferred solution of the power transfer analysis system in the power grid described in the present invention, the objective function includes minimizing costs, reducing losses or improving power supply reliability, and the constraints include voltage level, line capacity and power supply safety.

[0029] As a preferred solution of the power transfer analysis system in the power grid described in the present invention, the adjustment strategy generation unit includes a human-computer interaction interface, allowing the operator to adjust algorithm parameters, set optimization goals or intervene in the optimization process according to actual conditions.

[0030] As a preferred solution of the power transfer analysis system in the power grid of the present invention, the display and alarm module provides a user interface, allowing the user to view the current status and historical performance data of the power transfer system, and the user interface includes charts, tables and digital dashboards, which graphically display the load distribution, voltage level, power flow and other information of the power grid;

[0031] When the system detects a serious problem, the display and alarm module can immediately trigger the alarm mechanism, which includes but is not limited to sounding an alarm, popping up a warning window, and flashing a warning light.

[0032] In a second aspect, the present invention provides a method for analyzing power transfer in a power grid, which comprises: when the load of the power grid changes, a data acquisition module monitors in real time and transmits data to an analysis and evaluation unit;

[0033] Comprehensively analyze the collected data and evaluate it based on preset indicators such as grid stability, economy, and power supply quality; the analysis and evaluation unit uses a multi-parameter comprehensive evaluation system;

[0034] The adjustment strategy generation unit uses a preset genetic algorithm to automatically output an optimized power supply transfer strategy;

[0035] The execution unit receives and implements the adjustment plan to ensure stable operation of the power grid.

[0036] In a third aspect, the present invention provides a computer device, comprising a memory and a processor, wherein the memory stores a computer program, wherein: when the processor executes the computer program, the steps of the power transfer analysis system in the power grid are implemented.

[0037] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein: the computer program, when executed by a processor, implements the steps of a power transfer analysis system in a power grid.

[0038] Compared with the prior art, the beneficial effects of the present invention are that it can adapt to changes in power grid load, automatically optimize the power supply transfer strategy, realize real-time monitoring and adaptive adjustment of the power supply transfer process, improve the automation level of power grid management, ensure the scientificity and rationality of the power supply transfer strategy through multi-parameter comprehensive evaluation, formulate automatic generation of optimization plans, improve the economy and power supply quality of power grid operation, reduce human intervention, and improve the efficiency and accuracy of power grid management. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 A system structure diagram of a power transfer analysis system and method in a power grid provided by an embodiment of the present invention;

[0041] Figure 2 An internal structural diagram of a computer device of a power transfer analysis system and method in a power grid provided by an embodiment of the present invention;

[0042] Figure 3 A method flow chart of a power transfer analysis system and method in a power grid provided by an embodiment of the present invention;

[0043] Figure 4 A flowchart of the operation of an adjustment strategy generation unit of a power transfer analysis system and method in a power grid provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned purposes, features and advantages of the present invention more understandable, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0046] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0047] Example 1

[0048] Reference Figure 1-Figure 4 , which is the first embodiment of the present invention, and which provides a power supply analysis system in a power grid, comprising:

[0049] The present application provides a method for effectively solving the above-mentioned problems. Next, multiple embodiments will be combined to explain in detail how to implement the power supply analysis system in the power grid.

[0050] Figure 1 A system structure diagram of a power transfer analysis system and method in a power grid is shown, including:

[0051] Data acquisition module, data processing module, analysis module, optimization module, display and alarm module and communication interface;

[0052] The data acquisition module is used to collect real-time power data from various nodes in the power grid; the data acquisition module is used to collect real-time data of parameters such as voltage, current, power, etc. from various nodes in the power grid; real-time data includes but is not limited to power grid load, power supply line status, and equipment health status, which are usually monitored and collected in real time through sensors, instruments and other equipment.

[0053] The data processing module performs filtering, normalization and other processing on the received data to facilitate subsequent analysis;

[0054] Furthermore, since the collected data comes from different devices and systems, and their formats and standards are different, the data processing module converts the original binary data frame into a unified format for subsequent processing; in the process of collecting power grid data, due to various interferences, the data contains noise, and the data processing module removes this noise through a filtering algorithm to extract useful signals; the data also contains abnormal values ​​caused by equipment failure or transmission errors, which need to be identified and corrected to ensure the integrity and accuracy of the data; in order to eliminate the influence of different dimensions and numerical ranges on the analysis results, the data processing module needs to normalize the data, including converting the data into a unified unit of measurement and scaling the data to a specific numerical range;

[0055] The optimization module includes an analysis and evaluation unit, an adjustment strategy generation unit and an execution unit, which are used to automatically adjust the power supply transfer strategy and automatically generate an optimization plan when the power grid load changes;

[0056] The display and alarm module displays the analysis results and optimization suggestions to the user in the form of graphics or text, and issues an alarm when a serious problem is detected;

[0057] The communication interface is used to communicate with other systems or devices to achieve data sharing and collaborative work.

[0058] Furthermore, sensors and smart meters are deployed to collect real-time operating data of power stations, substations and distribution networks, including power, voltage, current, and temperature parameters; a stable and reliable communication network is established to transmit the collected data to the central processing unit; a computing platform is built to receive and process real-time data from the data collection layer; data analysis algorithms are used to perform load forecasting and status assessment; adjustment strategies are formulated based on the results of data processing and analysis; and adjustment instructions are automatically issued to power stations, substations, and distribution networks. The local control systems of power stations, substations, and distribution networks receive instructions from the adjustment strategy generation unit and perform corresponding operations.

[0059] Furthermore, the specific method of adjusting the strategy generation unit for optimizing the module includes the following steps:

[0060] S1: First, mathematical modeling of the power transfer is carried out to determine the optimization objective function and constraints. The objective function includes but is not limited to cost minimization, loss reduction or power supply reliability improvement, and the constraints include but are not limited to voltage level, line capacity and power supply safety.

[0061] The mathematical model is expressed as:

[0062] min{C(x)} or max{R(x)}

[0063] stA(x)≤0

[0064] Among them, C(x) is the cost function, R(x) is the reliability function, and A(x) is the constraint matrix;

[0065] S2: In power supply optimization, the genetic algorithm generates a population through an iterative process and uses a fitness function to evaluate the performance of each strategy. Based on the evaluation results, the algorithm gradually improves the population through selection, crossover, and mutation operations until the optimal strategy is found;

[0066] xn+1=select(xn)×cxossovex(xn)×mutation(xn)

[0067] in, X n is the current generation strategy, X n+1 is the next generation strategy;

[0068] S3: In each iteration, the adjustment strategy generation unit uses the genetic algorithm to optimize the current population, generate a new generation of strategies, and re-evaluate the performance. This process continues until the preset number of iterations or fitness threshold is met;

[0069] S4: The adjustment strategy generation unit will output the power transfer strategy with the best performance for reference and application by the system operator.

[0070] The output formula is expressed as:

[0071]

[0072] in, X best is the best strategy, f (xn) is the fitness function.

[0073] Furthermore, power supply safety includes N-1 safety verification of the distribution network. When any equipment fails, the N-1 criterion isolates the fault through section / connection switches, and transfers the load through effective connection of feeders, ensuring continuous and good power supply to the load.

[0074] Furthermore, TSC refers to the maximum load supply capacity under the condition that the distribution network meets the N-1 safety criterion within a certain power supply area, taking into account the transfer capacity of substations and feeders and the actual operation constraints. It is defined as follows:

[0075] Assume that there is N c components. When the i-th component is out of operation due to maintenance or failure, the maximum load provided by the substation and feeder after considering the transfer capacity and actual operation constraints is Then the maximum power supply capacity TSC of the distribution network is:

[0076]

[0077] Mathematical modeling is established, which is mathematically expressed as a convex optimization problem. A convex optimization problem is one in which the feasible domain is a convex set and the objective function is a convex function, which is conducive to solving the global optimal solution.

[0078] That is, for any two points in the feasible region, every point on the line connecting them is in the feasible region. In addition, the objective function of convex optimization must also be a convex function, that is, it satisfies:

[0079] f(tx+(1-t)y)≤t(f(x)+(1-t)f(y)

[0080] Where f is a convex function, x and y are any two points on the domain, and t is any constant on (0,1).

[0081] Furthermore, the adjustment strategy generation unit includes a human-computer interaction interface, so that the operator can adjust algorithm parameters, set optimization goals or intervene in the optimization process according to specific circumstances.

[0082] Furthermore, the display and alarm module presents the analysis results and optimization suggestions to the user in the form of graphics or text, and issues an alarm when a serious problem is detected;

[0083] The display and alarm module provides a user interface that allows users to view the current status and historical performance data of the power supply system. The user interface includes charts, tables and digital dashboards, which graphically display the load distribution, voltage level and power flow information of the power grid. When the system detects a serious problem, the display and alarm module immediately triggers the alarm mechanism, which includes one or more of an audible alarm, a pop-up warning window and a flashing warning light.

[0084] Furthermore, the communication interface is used to communicate with other systems or devices to achieve data sharing and collaborative work.

[0085] In summary, the present invention provides a power grid power transfer analysis system and method, which can adapt to changes in power grid load, automatically optimize the power transfer strategy, realize real-time monitoring and adaptive adjustment of the power transfer process, improve the automation level of power grid management, and ensure the scientificity and rationality of the power transfer strategy through multi-parameter comprehensive evaluation. Automatically generate optimization plans, improve the economy and power supply quality of power grid operation, reduce manual intervention, and improve the efficiency and accuracy of power grid management.

[0086] Furthermore, this embodiment also provides a method for analyzing power transfer in a power grid, including:

[0087] When the grid load changes, the data acquisition module monitors in real time and transmits data to the analysis and evaluation unit;

[0088] Comprehensively analyze the collected data and evaluate it based on preset indicators such as grid stability, economy, and power supply quality; the analysis and evaluation unit uses a multi-parameter comprehensive evaluation system;

[0089] The adjustment strategy generation unit uses a preset genetic algorithm to automatically output an optimized power supply transfer strategy;

[0090] The execution unit receives and implements the adjustment plan to ensure stable operation of the power grid.

[0091] This embodiment also provides a computer device, which may be a terminal, and its internal structure diagram may be as shown in FIG. Figure 2 As shown. The computer device includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, an operator network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a power supply analysis system in a power grid is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a key, trackball or touchpad set on the computer device housing, or an external keyboard, touchpad or mouse, etc.

[0092] This embodiment also provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented: a data acquisition module, a data processing module, an analysis module, an optimization module, a display and alarm module, and a communication interface;

[0093] The data acquisition module is used to collect real-time power data from various nodes of the power grid;

[0094] The data processing module performs filtering, normalization and other processing on the received data to facilitate subsequent analysis;

[0095] The optimization module includes an analysis and evaluation unit, an adjustment strategy generation unit and an execution unit, which are used to automatically adjust the power supply transfer strategy and automatically generate an optimization plan when the power grid load changes;

[0096] The display and alarm module displays the analysis results and optimization suggestions to the user in the form of graphics or text, and issues an alarm when a serious problem is detected;

[0097] The communication interface is used to communicate with other systems or devices to achieve data sharing and collaborative work.

[0098] Example 2

[0099] Reference Figure 1 - Figure 2 , which is the second embodiment of the present invention, and this embodiment provides a power transfer analysis system in a power grid. In order to verify the beneficial effects of the present invention, scientific demonstration is carried out through economic benefit calculation and simulation experiments.

[0100] In order to verify the effectiveness and superiority of the power transfer analysis system in the power grid, the following experiment was designed. This experiment aims to prove the significant improvement of the system in terms of grid stability, economy and power supply quality through data collection and analysis in the actual power grid environment. The test site was selected in an urban area with a complex power grid structure. There are multiple power supply lines and various types of power equipment in the area, which can fully simulate various situations in the real power grid environment.

[0101] First, the data acquisition module was installed to ensure that real-time power data such as voltage, current, and power can be collected from key nodes of the power grid (such as substations and important user access points), while recording the power grid load, power line status, and equipment health. These data are obtained through high-precision sensors and transmitted to the data processing center in real time through wireless communication technology.

[0102] The data processing module performs necessary filtering and normalization on the received raw data to eliminate noise interference and ensure the accuracy of subsequent analysis. The analysis module then conducts in-depth analysis of the processed data, especially evaluating key indicators such as grid stability (voltage stability and frequency stability), economy (power supply cost and line loss) and power supply quality (voltage fluctuation and harmonic content).

[0103] Based on the above analysis results, the adjustment strategy generation unit in the optimization module uses genetic algorithms to mathematically model the power transfer, setting cost minimization, loss reduction and power supply reliability improvement as the objective function, while considering constraints such as voltage level, line capacity and power supply safety. Through multiple iterations of optimization, the optimal power transfer strategy was finally generated. After receiving the optimization plan, the execution unit quickly implemented the corresponding adjustment measures to achieve dynamic balance and efficient operation of the power grid.

[0104] The display and alarm module displays the grid status comparison before and after optimization through the user interface, including information such as load distribution, voltage level, power flow, etc. In addition, the system also has an intelligent alarm function. Once an abnormal situation that may affect the safe operation of the grid is detected, the alarm mechanism will be triggered immediately to notify relevant personnel to take timely measures.

[0105] Table 1 Performance comparison of power grid before and after optimization

[0106]

[0107]

[0108] By comparing the data in the above table, we can clearly see that the power supply analysis system in the power grid has demonstrated its significant advantages and innovations in many aspects. Specifically:

[0109] After optimization, the voltage stability in different experimental states has been significantly improved, and the fluctuation range has been greatly reduced. For example, in state D after the experiment, the voltage stability has increased from 220±15V before the experiment to 220±5V, which shows that the system can effectively control voltage fluctuations and improve power supply quality.

[0110] Frequency stability has also been significantly enhanced. Taking the post-experimental state E as an example, the frequency stability is optimized from 50±0.8Hz to 50±0.2Hz, which is crucial to ensure the safe and stable operation of the power grid.

[0111] The system effectively reduces the power supply cost by optimizing the power supply strategy. In the post-experimental state F, the power supply cost is reduced from the original 0.70 yuan / kWh to 0.60 yuan / kWh, saving about 14% of the cost, which reflects the economic advantage of the system.

[0112] The reduction of line loss is also a highlight of the system. For example, in the post-experimental state D, the line loss dropped from 6.5% to 4.5%, a reduction of 30.8%, which not only saves energy but also helps improve the overall power supply efficiency.

[0113] The improvement of these two indicators is of great significance for improving power supply quality and protecting user equipment. In the post-experimental state E, the voltage fluctuation dropped from 180mV to 60mV, and the harmonic content dropped from 4.0% to 1.8%, proving the effectiveness of the system in suppressing grid pollution.

[0114] In summary, the power grid power supply analysis system of the present invention has not only achieved innovation at the technical level, but also demonstrated obvious performance advantages in practical applications. Compared with the traditional power grid management method, the system can monitor the power grid status more accurately and adjust the power supply strategy more efficiently, thereby ensuring the stability and quality of the power grid while achieving a significant reduction in costs. These achievements provide strong technical support for the development of future smart grids.

[0115] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

[0116] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of complete hardware embodiments, complete software embodiments, or embodiments in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code. The scheme in the embodiments of the present application can be implemented in various computer languages, for example, object-oriented programming language Java and literal scripting language JavaScript, etc.

[0117] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0118] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0119] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1The steps for the functions specified in one or more boxes.

[0120] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0121] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A power supply analysis system in a power grid, characterized by: Including data acquisition module, data processing module, analysis module, optimization module, display and alarm module and communication interface; The data acquisition module is used to collect real-time power data from various nodes of the power grid; The data processing module performs filtering, normalization and other processing on the received data to facilitate subsequent analysis; The optimization module includes an analysis and evaluation unit, an adjustment strategy generation unit and an execution unit, which are used to automatically adjust the power supply transfer strategy and automatically generate an optimization plan when the power grid load changes; The display and alarm module displays the analysis results and optimization suggestions to the user in the form of graphics or text, and issues an alarm when a serious problem is detected; The communication interface is used to communicate with other systems or devices to achieve data sharing and collaborative work.

2. The power transfer analysis system in the power grid according to claim 1, characterized in that: The real-time power data includes voltage, current and power; The real-time data includes grid load, power supply line status and equipment health status.

3. The power transfer analysis system in the power grid according to claim 2, characterized in that: The grid stability indicators include voltage stability and frequency stability, the economic indicators include power supply cost and line loss, and the power supply quality indicators include voltage fluctuation and harmonic content.

4. The power transfer analysis system in the power grid according to claim 3, characterized in that: The specific method for the adjustment strategy generation unit to optimize the module includes: Mathematical modeling of power supply is carried out to determine the optimization objective function and constraints. The calculation formula is as follows: min{C(x)} or max{R(x)} stA(x)<0 Among them, C(x) is the cost function, R(x) is the reliability function, and A(x) is the constraint matrix; Genetic algorithms are used to generate populations through an iterative process, and the performance of each strategy is evaluated using a fitness function. Based on the evaluation results, the algorithm gradually improves the population through selection, crossover, and mutation operations until the optimal strategy is found. The calculation formula is as follows: x n+1 =select(x n )×crossover(x n )×mutation(x n ) Among them, X n is the current generation strategy, X n+1 It is the next generation strategy; In each iteration, the adjustment strategy generation unit uses the genetic algorithm to optimize the current population, generate a new generation of strategies, and re-evaluate the performance. This process continues until the preset number of iterations or fitness threshold is met; The adjustment strategy generation unit outputs the best power transfer strategy for reference and application by the system operator. The output formula is as follows: Among them, X best is the best strategy, f(x n ) is the fitness function.

5. The power transfer analysis system in the power grid according to claim 4, characterized in that: The objective function includes minimizing costs, reducing losses or improving power supply reliability, and the constraints include voltage level, line capacity and power supply security.

6. The power transfer analysis system in the power grid according to claim 5, characterized in that: The adjustment strategy generation unit includes a human-computer interaction interface, which allows the operator to adjust algorithm parameters, set optimization goals or intervene in the optimization process according to actual conditions.

7. The power transfer analysis system in the power grid according to claim 6, characterized in that: The display and alarm module provides a user interface that allows users to view the current status and historical performance data of the power supply system. The user interface includes charts, tables and digital dashboards that graphically display information such as load distribution, voltage level, power flow direction, etc. of the power grid; When the system detects a serious problem, the display and alarm module can immediately trigger the alarm mechanism, which includes but is not limited to sounding an alarm, popping up a warning window, and flashing a warning light.

8. A method for analyzing power transfer in a power grid, based on the power transfer analysis system in a power grid according to any one of claims 1 to 7, characterized in that: It includes: when the grid load changes, the data acquisition module monitors in real time and transmits data to the analysis and evaluation unit; comprehensively analyzes the collected data and evaluates it in combination with preset grid stability, economy, and power supply quality indicators; the analysis and evaluation unit uses a multi-parameter comprehensive evaluation system; the adjustment strategy generation unit uses a preset genetic algorithm to automatically output the optimized power supply strategy; the execution unit receives the adjustment plan and implements it to ensure stable operation of the grid.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the power transfer analysis system in the power grid according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the power transfer analysis system in the power grid according to any one of claims 1 to 7 are implemented.