Power distribution system and method

Abstract

The application belongs to the technical field of power distribution system, and particularly relates to a power distribution system and a power distribution method, wherein the power distribution system comprises: an energy storage module, which is used for storing electric energy; a dynamic power distribution module, which is used for distributing electric energy to terminal users; a load data acquisition module, a pre-warning model construction module and a self-adaptive dynamic protection module, which comprises a mechanical protection unit and a dynamic safety protection system. The power distribution system and the power distribution method disclosed by the application re-distribute or cut off the power supply of abnormal electric terminal in the mode of mechanical power-off and power distribution disconnection, avoid the situation that the power distribution system cannot be safely protected when the mechanical protection device fails, significantly improve the operation safety of the power distribution system, and dynamically predict the fault state of the power distribution system according to the electric data of the abnormal electric terminal, greatly improving the operation stability of the power distribution system.

Description

Technical Field

[0001] This invention belongs to the field of power distribution system technology, and specifically relates to a power distribution system and power distribution method. Background Technology

[0002] A power distribution system is a power system that steps down the high-voltage current transmitted from the power grid and distributes it to end users. It mainly functions as a voltage converter, a power distribution system, and a safety protection system. It is usually composed of a software control system and hardware devices such as power distribution lines, power distribution equipment, and grounding devices. It is widely used in industrial plants, civil buildings, and various construction sites.

[0003] In existing technologies, common power distribution systems mainly rely on mechanical protection devices such as circuit breakers and residual current devices (RCDs) to protect against overload, short circuit, and overheating. These mechanical protection devices can only protect the power distribution system when there is an overload, short circuit, or overheating fault in the voltage circuit. When the mechanical protection devices themselves malfunction, they cannot protect the power distribution system. Furthermore, they cannot predict the fault state of the power distribution system based on its power supply characteristics, resulting in poor operational safety and stability.

[0004] Therefore, in order to address the aforementioned technical problems, it is necessary to provide a power distribution system and a power distribution method.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a power distribution system and method that can improve the operational safety and stability of the power distribution system.

[0007] To achieve the above objectives, a specific embodiment of the present invention provides a power distribution system, comprising: an energy storage module for storing electrical energy; a dynamic power distribution module for distributing electrical energy to end users; a load data acquisition module for acquiring data on the electrical load of end users; an early warning model construction module for constructing a dynamic early warning model based on the load data; and an adaptive dynamic protection module, comprising a mechanical protection unit and a dynamic safety protection system, wherein the mechanical protection unit controls mechanical protection equipment to mechanically disconnect power from the power distribution lines, and the dynamic safety protection system provides safety protection for end users.

[0008] In one or more embodiments of the present invention, the dynamic power distribution module includes an end-user allocation unit, a dynamic feedback unit, and a gain compensation unit. The end-user allocation unit is used to distribute the electrical energy in the energy storage module according to the end-user load status.

[0009] In one or more embodiments of the present invention, the allocation method of the terminal user allocation unit is as follows:

[0010]

[0011] in, The electrical energy allocated to the i-th end user. Total electrical energy This represents the load data for the i-th terminal user.

[0012] In one or more embodiments of the present invention, the dynamic feedback unit is used to detect and provide feedback on the power consumption status of end users. The distribution effect of the end-user allocation unit can be fed back based on the feedback result of the end-user power consumption status. The gain compensation unit is used to perform power distribution compensation on end users based on the feedback data from the dynamic feedback unit. Power distribution compensation improves the effectiveness of power distribution to end users.

[0013] In one or more embodiments of the present invention, the load data acquisition module includes a load data collection unit, a dynamic region division unit, and an abnormal data removal unit. The load data acquisition unit is used to scan and collect the load power consumption data of end users and construct a two-dimensional network node distribution map based on the load power consumption data. Each unit grid of the two-dimensional network node distribution map represents the load power consumption data of a single end user.

[0014] In one or more embodiments of the present invention, the dynamic region division unit is used to divide the two-dimensional network node distribution map into multiple dynamic regions based on geographical information, user information, and load power consumption data. The abnormal data removal unit uses data comparison to remove abnormal data that is too high or too low in the two-dimensional network node distribution map. This improves the accuracy of subsequently constructing an anomaly early warning model based on load power consumption data.

[0015] In one or more embodiments of the present invention, the early warning model construction module includes a model construction unit and a model correction unit. The model construction unit uses the alternating direction multiplier method to extract grid data and load power consumption data from a two-dimensional network node distribution map, analyzes the load power consumption fluctuation characteristics of end users, and constructs an anomaly early warning model. The model correction unit is used to perform big data correction on the anomaly early warning model based on load power consumption data from multiple dynamic regions. This ensures the accuracy of the anomaly early warning model in application.

[0016] In one or more embodiments of the present invention, the dynamic safety protection system includes an early warning identification unit, an adaptation protection unit, and an early warning power-off unit. The early warning identification unit compares the power consumption status of end users with that of an abnormality early warning model. If the power consumption status of an end user exceeds the prediction range of the abnormality early warning model, it is identified as an abnormal power consumption terminal. By providing power-off protection for abnormal power consumption terminals, the operational stability of the power distribution system is ensured.

[0017] In one or more embodiments of the present invention, the adaptation protection unit is used to dynamically adjust the power distribution of the terminal user based on the result identified by the early warning identification unit. The early warning power-off unit is used to disconnect the power distribution to the abnormal power-consuming terminal.

[0018] A power distribution method for a power distribution system includes the following steps:

[0019] S1. An energy storage module is used to store electrical energy, and a dynamic power distribution module is used to distribute the electrical energy stored in the energy storage module to each end user according to the load status of the end user.

[0020] S2. The load data collection unit scans and collects the load power consumption data of the end users and constructs a two-dimensional network node distribution map. At the same time, after the abnormal data removal unit removes the load power consumption data under abnormal conditions, the dynamic area division unit dynamically divides the two-dimensional network node distribution map into regions based on the load power consumption data.

[0021] S3. By extracting grid data and load power consumption data from the two-dimensional network node distribution map, analyze the load power consumption fluctuation characteristics of end users, construct an anomaly early warning model, and use a model correction unit to correct the anomaly early warning model.

[0022] S4. Dynamic protection of the power distribution system is provided through the adaptive dynamic protection module. In case of overload, short circuit and overheating, the power distribution system can be mechanically powered off by circuit breakers, leakage current protectors and overheat relays.

[0023] S5. At the same time, based on the abnormal early warning model, the early warning identification unit is used to identify the abnormal power consumption terminal, the abnormal power consumption terminal is dynamically adjusted through the adaptation protection unit, and the abnormal power consumption terminal is terminated through the early warning power cut-off unit.

[0024] Compared with the prior art, the power distribution system and method disclosed in this invention adopts a combination of mechanical power disconnection and power distribution disconnection to re-distribute or disconnect abnormal power terminals, which avoids the situation that the power distribution system cannot be protected when the mechanical protection equipment fails, and significantly improves the operational safety of the power distribution system.

[0025] The fault status of the power distribution system can be dynamically predicted based on the power consumption data of abnormal power terminals, which greatly improves the operational stability of the power distribution system. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a functional diagram of a power distribution system according to an embodiment of the present invention;

[0028] Figure 2 This is a flowchart of a power distribution method for a power distribution system according to an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of an abnormal power consumption terminal identifier in one embodiment of the present invention. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0031] like Figures 1 to 3 As shown, a power distribution system in one embodiment of the present invention includes: an energy storage module for storing electrical energy, a load data acquisition module, an early warning model construction module, and an adaptive dynamic protection module.

[0032] like Figure 1 As shown, the dynamic power distribution module is used to distribute electrical energy to end users. The dynamic power distribution module includes an end-user allocation unit, a dynamic feedback unit, and a gain compensation unit. The end-user allocation unit distributes the electrical energy within the energy storage module according to the end-user load status.

[0033] The allocation method for the terminal user allocation unit is as follows:

[0034]

[0035] in, The electrical energy allocated to the i-th end user. Total electrical energy This represents the load data for the i-th terminal user.

[0036] like Figure 1 As shown, the dynamic feedback unit is used to detect and provide feedback on the power consumption status of end users. It can provide feedback on the distribution effect of the power distribution unit based on the feedback results of the end user's power consumption status, thus facilitating the judgment of the distribution effect of the power distribution unit. The gain compensation unit is used to perform power distribution compensation for end users based on the feedback data from the dynamic feedback unit. This power distribution compensation method improves the effectiveness of power distribution to end users.

[0037] like Figure 1 As shown, the load data acquisition module is used to collect data on the electrical load of end users.

[0038] like Figures 1 to 3 As shown, the load data acquisition module includes a load data collection unit, a dynamic area division unit, and an abnormal data removal unit. The load data acquisition unit scans and collects the load power consumption data of end users and constructs a two-dimensional network node distribution map based on this data. Each unit grid in the two-dimensional network node distribution map represents the load power consumption data of a single end user. Constructing this two-dimensional network node distribution map facilitates the observation and identification of the power consumption data status of each end user.

[0039] like Figure 1 As shown, the dynamic region division unit divides the two-dimensional network node distribution map into multiple dynamic regions based on geographical information, user information, and load power consumption data. The abnormal data removal unit uses data comparison to remove abnormal data that is too high or too low in the two-dimensional network node distribution map. This improves the accuracy of subsequent anomaly early warning models built based on load power consumption data.

[0040] like Figure 1 As shown, the early warning model construction module is used to build a dynamic early warning model based on load data. The early warning model construction module includes a model construction unit and a model correction unit. The model construction unit uses the alternating direction multiplier method to extract grid data and load power consumption data from the two-dimensional network node distribution map, analyze the load power consumption fluctuation characteristics of end users, and construct an anomaly early warning model.

[0041] Specifically, the peak electricity consumption of end users within a unit dynamic area can be calculated through an anomaly early warning model, providing a data basis for identifying abnormal electricity consumption terminals in the future.

[0042] like Figure 1 As shown, the model correction unit is used to perform big data correction on the anomaly warning model based on load power consumption data in multiple dynamic areas. This ensures the accuracy of the anomaly warning model in application.

[0043] like Figure 1 As shown, the adaptive dynamic protection module includes a mechanical protection unit and a dynamic safety protection system. The mechanical protection unit controls the mechanical protection equipment to mechanically disconnect the power distribution line, while the dynamic safety protection system provides safety protection for end users.

[0044] Among them, mechanical protection equipment includes circuit breakers, overheat relays, and residual current devices.

[0045] like Figures 1 to 3 As shown, the dynamic safety protection system includes an early warning identification unit, an adaptive protection unit, and an early warning power-off unit. The early warning identification unit compares the power consumption status of end users with the abnormal early warning model. If the power consumption status of an end user exceeds the prediction range of the abnormal early warning model, it is identified as an abnormal power consumption terminal. By providing power-off protection for abnormal power consumption terminals, the operational stability of the power distribution system is ensured.

[0046] like Figure 1 As shown, the adaptive protection unit is used to dynamically adjust the power distribution of end users based on the results of the early warning identification unit. The early warning power-off unit is used to disconnect the power distribution to terminals with abnormal power consumption.

[0047] like Figure 2 As shown, a power distribution method for a power distribution system includes the following steps:

[0048] S1. An energy storage module is used to store electrical energy, and a dynamic power distribution module is used to distribute the electrical energy stored in the energy storage module to each end user according to the load status of the end user.

[0049] S2. The load data collection unit scans and collects the load power consumption data of the end users and constructs a two-dimensional network node distribution map. At the same time, after the abnormal data removal unit removes the load power consumption data under abnormal conditions, the dynamic area division unit dynamically divides the two-dimensional network node distribution map into regions based on the load power consumption data.

[0050] S3. By extracting grid data and load power consumption data from the two-dimensional network node distribution map, analyze the load power consumption fluctuation characteristics of end users, construct an anomaly early warning model, and use a model correction unit to correct the anomaly early warning model.

[0051] S4. Dynamic protection of the power distribution system is provided through the adaptive dynamic protection module. In case of overload, short circuit and overheating, the power distribution system can be mechanically powered off by circuit breakers, leakage current protectors and overheat relays.

[0052] S5. At the same time, based on the abnormal early warning model, the early warning identification unit is used to identify the abnormal power consumption terminal, the abnormal power consumption terminal is dynamically adjusted through the adaptation protection unit, and the abnormal power consumption terminal is terminated through the early warning power cut-off unit.

[0053] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0054] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A power distribution system, characterized in that, include: An energy storage module, wherein the energy storage module is used to store electrical energy; A dynamic power distribution module, which is used to distribute power to end users; A load data acquisition module is used to acquire data on the electrical load of end users; An early warning model construction module is used to construct a dynamic early warning model based on load data; An adaptive dynamic protection module includes a mechanical protection unit and a dynamic safety protection system. The mechanical protection unit is used to control the mechanical protection equipment to mechanically disconnect the power distribution line, and the dynamic safety protection system is used to provide safety protection for end users. The dynamic power distribution module includes an end-user allocation unit, a dynamic feedback unit, and a gain compensation unit. The end-user allocation unit is used to distribute the electrical energy in the energy storage module according to the end-user load status. The dynamic feedback unit is used to detect and provide feedback on the end-user's power consumption status. The gain compensation unit is used to perform power distribution compensation for the end-user based on the feedback data from the dynamic feedback unit. The dynamic safety protection system includes an early warning identification unit, an adaptation protection unit, and an early warning power-off unit. The early warning identification unit is used to compare the power consumption status of the terminal user with the abnormal early warning model. If the power consumption status of the terminal user exceeds the prediction range of the abnormal early warning model, it is identified as an abnormal power consumption terminal. The load data acquisition module includes a load data collection unit, a dynamic area division unit, and an abnormal data removal unit. The load data collection unit is used to scan and collect the load power consumption data of terminal users and construct a two-dimensional network node distribution map based on the load power consumption data. Each unit grid of the two-dimensional network node distribution map represents the load power consumption data of a single terminal user. The early warning model construction module includes a model construction unit and a model correction unit. The model construction unit uses the alternating direction multiplier method to extract grid data and load power consumption data from the two-dimensional network node distribution map, analyzes the load power consumption fluctuation characteristics of end users, and constructs an abnormal early warning model. The model correction unit is used to perform big data correction on the abnormal early warning model based on load power consumption data in multiple dynamic areas. The power distribution system is implemented using the following power distribution method, including the following steps: S1. An energy storage module is used to store electrical energy, and a dynamic power distribution module is used to distribute the electrical energy stored in the energy storage module to each end user according to the load status of the end user. S2. The load data collection unit scans and collects the load power consumption data of the end users and constructs a two-dimensional network node distribution map. At the same time, after the abnormal data removal unit removes the load power consumption data under abnormal conditions, the dynamic area division unit dynamically divides the two-dimensional network node distribution map into regions based on the load power consumption data. S3. By extracting grid data and load power consumption data from the two-dimensional network node distribution map, analyze the load power consumption fluctuation characteristics of end users, construct an anomaly early warning model, and use a model correction unit to correct the anomaly early warning model. S4. The power distribution system is dynamically protected by the adaptive dynamic protection module. If overload, short circuit or overheating occurs, the power distribution system is mechanically powered off by the mechanical protection unit. S5. At the same time, based on the abnormal early warning model, the early warning identification unit is used to identify the abnormal power consumption terminal, the abnormal power consumption terminal is dynamically adjusted through the adaptation protection unit, and the abnormal power consumption terminal is terminated through the early warning power cut-off unit.

2. The power distribution system according to claim 1, characterized in that, The allocation method of the terminal user allocation unit is as follows: in, The electrical energy allocated to the i-th end user. Total electrical energy This represents the load data for the i-th terminal user.

3. The power distribution system according to claim 1, characterized in that, The dynamic region division unit is used to divide the two-dimensional network node distribution map into multiple dynamic regions based on regional information, user information, and load power consumption data. The abnormal data removal unit uses data comparison to remove abnormal data that is too high or too low in the two-dimensional network node distribution map.

4. The power distribution system according to claim 1, characterized in that, The adaptive protection unit is used to dynamically adjust the power distribution of the terminal user based on the result of the early warning identification unit, and the early warning power disconnection unit is used to disconnect the power distribution of the abnormal power-consuming terminal.

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