Distributed resource plug-and-play system and method based on power distribution network
Patent Information
- Application Number
- CN202511212263.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-28
- Publication Date
- 2025-11-28
Smart Images
Figure CN121037405A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of power distribution, in particular to a plug-and-play system and method based on distributed resources of a power distribution network. BACKGROUND
[0002] With the advancement of the double carbon target, a large number of distributed power sources and various intelligent devices are connected to the low-voltage power distribution network, the operation mode of the power grid has changed profoundly, and the complexity of management and control has increased significantly. At present, there are many types of intelligent devices in the transformer area, the physical communication interfaces are not unified, and the communication protocols are diversified, which makes it difficult to achieve plug-and-play between devices, increasing the complexity of installation, debugging and operation and maintenance. The traditional communication network of the power distribution network has deficiencies in supporting low latency, high bandwidth and high concurrency performance, and cannot meet the needs of new business scenarios in the transformer area.
[0003] In the prior art, some research attempts to solve the above problems by unifying the communication protocol or building a dedicated communication network, but these solutions often have problems such as high cost, poor compatibility and insufficient scalability. In addition, the traditional communication network lacks standardized and intelligent management mechanisms in terms of device access, registration and communication process, making it difficult to achieve plug-and-play and dynamic management of devices. In order to overcome the deficiencies of the prior art, there is an urgent need for a low-cost peer-to-peer communication network in the transformer area with low latency, high bandwidth, high concurrency performance and strong burst performance. SUMMARY
[0004] In view of the deficiencies of the prior art, the present application provides a plug-and-play system and method based on distributed resources of a power distribution network, which aims to solve the problems in the background art.
[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a plug-and-play system based on distributed resources of a power distribution network, comprising: an end device, a fusion terminal, an IP dual-mode communication module, a master station plug-and-play micro application, and a management platform; the end device is connected with the IP dual-mode communication module; the IP dual-mode communication module is connected with the fusion terminal; the fusion terminal communicates with the management platform; and the management platform is connected with the master station plug-and-play micro application.
[0006] Further, the IP dual-mode communication module comprises an IP terminal communication module and an IP head-end communication module; the fusion terminal comprises a support APP, a collection APP and a data center APP; the end device is connected with the IP terminal communication module, the IP terminal communication module is connected with the IP head-end communication module, and the IP head-end communication module is connected with the fusion terminal.
[0007] A plug-and-play method based on distributed resources of a power distribution network, comprising the following steps: The end device accesses the transformer area, the IP terminal communication module interacts with the end device, and the address, device type and account information of the end device are obtained. After the IP-based terminal communication module is networked, it obtains its own IP address and the IP address of the IP-based headend communication module, and requests the IP address of the converged terminal from the IP-based headend communication module. The IP-based terminal communication module sends a registration request to the converged terminal, which is then distributed by the supporting APP of the converged terminal to the corresponding application APP for processing. The registration information is parsed and stored in the data center. After receiving the registration confirmation, the IP-based terminal communication module completes the registration. The data center APP of the converged terminal monitors the online status of the terminal device in real time. When it confirms that the terminal device is stably connected, it sends an online message to the property management platform. After receiving the message, the property management platform automatically matches the pre-stored terminal device archive, pushes the complete archive to the main station, and triggers the collection APP of the converged terminal to actively report the real-time operation data of the terminal device to the plug-and-play micro-application of the main station. After receiving the terminal device files and running data, the main station's plug-and-play micro-application uses the area identification verification logic to determine whether the installation area recorded in the terminal device file is consistent with the area of the currently reported data. If there is a discrepancy, a device deletion command is issued to the converged terminal. The application (APP) in the converged terminal issues a removal data frame instruction to the corresponding terminal device. After receiving the removal data frame, the IP-based terminal communication module adds the network identifier of the current terminal device to the blacklist, starts re-entering the network, selects an adjacent distribution area and joins it. It then re-registers with the converged terminal in another distribution area on this network, and sends the data to the master station from this converged terminal. The master station still checks whether the device information and the distribution area sending the data are consistent. If they are consistent, the IP-based terminal communication module selects the correct distribution area to send the data.
[0008] Furthermore, device models are established for different devices on the converged terminal. The device model indicates all the data points that the current device has. When the APP on the converged terminal receives the device registration information, it finds the corresponding device model in the data center through the device type and manufacturer code in the registration information. Then, it performs telemetry and remote control operations on the end device according to the data points in the device model.
[0009] Furthermore, the process by which the IP-based terminal communication module interacts with the terminal device to obtain the terminal device's address, device type, and ledger information is as follows: After the terminal module is powered on, it immediately begins to attempt to interact with the terminal device; the terminal module has built-in mainstream device communication protocols, and tries different protocols and baud rates in turn until it establishes interaction with the terminal device, and then obtains the terminal device's address, device type, and ledger information to prepare for device registration.
[0010] Furthermore, the headend module works in conjunction with the supporting APP on the converged terminal to adapt to the IP address of the converged terminal and keep it on the same network segment as the converged terminal's IP address.
[0011] Further, the end communication module is assigned an IP address by the head communication module after networking is completed, and the end module has its own IP address and obtains the IP address of the head module at this moment, and further requests the IP address of the fusion terminal from the head module, and prepares for device registration.
[0012] Further, the registration behavior is initiated by the end communication module, and the fusion terminal responds, and the end communication module initiates a registration request data frame to the fusion terminal after obtaining the IP of the fusion terminal and completing interaction with the end device.
[0013] An electronic device, comprising a processor, a memory and a bus, the processor and the memory are connected through the bus, wherein the memory is used to store a set of program codes, and the processor is used to call the program codes stored in the memory to execute a power distribution network distributed resource plug and play method.
[0014] A non-volatile computer storage medium, the computer storage medium stores computer executable instructions, and the computer executable instructions execute a power distribution network distributed resource plug and play method.
[0015] Compared with the prior art, the present application has the following beneficial effects: (1) The present application introduces an IP dual-mode communication module, allocates a unique IP address for each device, builds an efficient IP network transmission channel, realizes high real-time and high-bandwidth communication, carries various protocols of intelligent devices in the transformer area, seamlessly accesses the fusion terminal, supports plug and play, and the edge device can batch issue commands to the multi-end device, and supports single-end device multi-service parallel communication, simplifies protocol conversion, and significantly improves the real-time, bandwidth and concurrency of the communication network.
[0016] (2) The present application utilizes the high time synchronization accuracy, high concurrency and high bandwidth characteristics of the IP dual-mode communication to realize rapid identification of the transformer area topology, improves the accuracy and efficiency of topology identification, provides a solid foundation for subsequent fault research and analysis, line loss analysis and other advanced applications, realizes a peer-to-peer communication network, can report time-sensitive data in bursts, and the one-way communication delay is about 100ms, which significantly shortens the fault positioning time by supporting rapid burst sending of alarm events, improves the timeliness and accuracy of fault handling, and provides a strong guarantee for the safe operation of the power grid.
[0017] (3) The present application adopts HPLC frequency band expansion and address coding expansion method to avoid interference with the power utilization information acquisition system, has MESH networking capability, can carry various communication protocols of low-voltage power distribution network, and the head module has routing capability, can realize end-to-end communication across transformer areas, and the security encryption function is complete. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 This is a flowchart of the method of the present invention. Detailed Implementation
[0019] This invention provides a technical solution: a plug-and-play system based on distributed resources in a power distribution network, comprising: end devices, converged terminals (edge devices), an IP-based dual-mode communication module, a master station plug-and-play micro-application, and a property management platform; the end devices are connected to the IP-based dual-mode communication module (directly via standardized physical interfaces such as RS485, Ethernet, and wireless RF interfaces); the IP-based dual-mode communication module is connected to the converged terminal (directly via Ethernet or an industrial bus such as a CAN bus); the converged terminal communicates with the property management platform, and based on the IoT management interface specification, realizes functions such as dynamic addition and deletion of devices, and proactive data reporting, enabling the master station to dynamically manage and monitor the edge-end devices; the property management platform is connected to the master station plug-and-play micro-application.
[0020] The IP-based dual-mode communication module includes an IP-based terminal communication module and an IP-based headend communication module; the converged terminal (side device) contains a support APP, a data acquisition APP, and a data center APP; the terminal device is connected to the IP-based terminal communication module, the IP-based terminal communication module is connected to the IP-based headend communication module, and the IP-based headend communication module is connected to the converged terminal.
[0021] The core data uplink structure, consisting of "end device → IP-based end communication module → IP-based headend communication module → converged terminal → property management platform → master station plug-and-play micro-application," enables the hierarchical uploading of end device information and data. The core command downlink structure, consisting of "master station plug-and-play micro-application → property management platform → converged terminal → IP-based headend communication module → IP-based end communication module → end device," enables remote management of end devices from the master station. Through hierarchical connection and collaboration, these modules ultimately achieve plug-and-play and full lifecycle management of distributed resources in the power distribution network.
[0022] like Figure 1 As shown, a plug-and-play method for distributed resources in a power distribution network includes the following steps: When a terminal device accesses a distribution area, the IP-based terminal communication module interacts with the terminal device to obtain its address, device type, and ledger information.
[0023] After the IP-based terminal communication module is networked, it obtains its own IP address and the IP address of the IP-based headend communication module, and requests the IP address of the converged terminal from the IP-based headend communication module.
[0024] The IP-based terminal communication module sends a registration request to the converged terminal, which is then distributed by the supporting APP of the converged terminal to the corresponding application APP for processing. The registration information is parsed and stored in the data center. After receiving the registration confirmation, the IP-based terminal communication module completes the registration.
[0025] The data center APP of the fusion terminal monitors the online state of the terminal equipment in real time, and sends the terminal equipment online message to the management platform when confirming that the terminal equipment is stably accessed. After receiving the message, the management platform automatically matches the pre-stored terminal equipment archive library, pushes the complete archive to the master station, and triggers the collection APP of the fusion terminal to actively report the terminal equipment real-time operation data to the master station plug-and-play micro application.
[0026] After the master station plug-and-play micro application receives the terminal equipment archive and operation data, it judges whether the installation area recorded in the terminal equipment archive is consistent with the current reporting area through area identification verification logic.
[0027] If it is inconsistent (there is a wrong connection of the area), the device delete deviceOffline command is issued to the fusion terminal, the application APP in the fusion terminal issues the exclusion data frame instruction to the corresponding terminal equipment, and the IP terminal communication module adds the network identifier (PANID) of the current terminal equipment to the blacklist after receiving the exclusion data frame, starts to re-enter the network, selects the adjacent area that can communicate and joins, and re-registers to another area of the fusion terminal in this network, and uploads to the master station. The master station still judges whether the device information and the area of the uploaded data are consistent, if they are consistent, the IP terminal communication module selects the correct power distribution area to upload data.
[0028] Among them, a device model is established on the fusion terminal for different devices, which indicates all data point items that the current device has. The APP on the fusion terminal can find the corresponding device model in the data center through the device type and manufacturer code in the registration information, and then perform remote measurement, remote control and other operations on the terminal equipment according to the data point items in the device model.
[0029] Among them, the IP terminal communication module interacts with the terminal equipment to obtain the address, device type and account information of the terminal equipment. After the terminal module is powered on, it immediately starts to try to interact with the terminal equipment. The terminal module has built-in mainstream device communication protocols, and tries to change the protocol and baud rate in turn until the interaction with the terminal equipment is established, and then obtains the address, device type and account information of the terminal equipment, etc., to prepare for device registration.
[0030] Among them, the head-end module can cooperate with the supporting APP on the fusion terminal to adapt to the IP address of the fusion terminal and keep the fusion terminal IP in one network segment.
[0031] Among them, the terminal communication module will be assigned an IP address by the head-end communication module after completing the network, and the terminal module has its own IP address and obtains the IP address of the head-end module at this moment, and further requests the IP address of the fusion terminal from the head-end module to prepare for device registration.
[0032] Wherein, the registration behavior is initiated by the end communication module, the fusion terminal responds, the head module plays a role in routing forwarding, but from the network layer, it is indeed the direct communication of the end communication module and the fusion terminal. After the end communication module obtains the IP of the fusion terminal and completes the interaction with the end device, it can initiate a registration request data frame to the fusion terminal.
[0033] The support APP on the fusion terminal can distribute the registration request data frame to the application APP corresponding to the type of the end device. The application APP parses the registration information and stores it in the data center, and replies to the registration request. After the end module receives the fusion terminal registration confirmation frame, the edge-end registration process is completed.
[0034] Wherein, the fusion terminal application APP can initiate telemetry, remote signaling, remote control and other data frames to the end device after the end device is registered. The end communication module receives the transparent data frame and forwards it to the end device through the serial port, and accepts the reply data frame and transmits it to the fusion terminal. The fusion terminal application APP receives the telemetry, remote signaling reply data frame and parses it, and stores the data item in the data center. The application APP receives the remote control data frame and parses it, and stores the remote control result in the data center.
[0035] Cloud-edge plug and play The cloud-edge device plug and play function is realized based on the IOT management platform. The communication between the fusion terminal and the management platform is based on the management interface specification of the IOT, which realizes the functions of dynamic addition of devices, dynamic deletion of devices, active reporting of data, etc., and realizes the dynamic management and information monitoring of the main station to the edge-end device.
[0036] Wherein, the fusion terminal is connected to the KeMQTTIoT system as an edge device through the pre-configured edge device profile of the management platform (including client ID, device identification, username, password, etc.). After starting, the KeMQTTIoT actively queries and reports the registered end device list to the management platform through the topo / add message. After the management platform confirms, it returns the uniformly allocated deviceId and informs it through the topo / addResponse message. If the registration fails due to the end device model configuration problem of the management platform, it will report "product not existed". After successful registration, the KeMQTTIoT sends the topo / update message to notify the platform of the online status of the end device.
[0037] The SCU and the end device on the fusion terminal side report burst data to the management platform through a datas message, and the management platform pushes the data to the master station according to the subscription of the master station. The master station issues query (analog_Get, discrete_Get, parameter_Get), setting (parameter_Set, parameter_Active), time operation (time Read, timeCheck) and restart (LEDRs_Oper) commands through an HTTP API interface, and the management platform publishes messages to the fusion terminal according to the specified topic to perform corresponding operations.
[0038] Plug and play micro application of master station A user applies to create an edge device to the management platform, and the management platform returns the topics of data, archives and commands to the plug and play micro application platform. The plug and play micro application subscribes to the data topics, receives and updates data to the MySQL database when the data is pushed in time, and calls the management platform https API to realize the issuance of telemetry, remote signaling and parameters. The plug and play micro application receives data by subscribing to the command topics of the edge and the end and updates the data to the database.
[0039] Automatic selection of distribution area The end communication module has the function of network blacklist, and the network PANID is stored in the blacklist to limit the network access. The PANID is a unique attribute of a micro-power wireless network, which is configured by the head-end module and cannot be configured by the end module. The end module does not have this attribute before successful network access, and this attribute follows the head-end module after network access.
[0040] The end communication module registers to the fusion terminal, and the fusion terminal registers the end device to the master station. The master station judges whether the information of the end device and the distribution area of the uploaded data are consistent. If not, the fusion terminal can be issued with a device deletion deviceOffline command, and the application APP in the fusion terminal issues a rejection data frame to the corresponding end device. After receiving the rejection data frame, the end communication module adds the current PANID to the blacklist, starts to re-access the network, selects the adjacent distribution area that can be communicated and joins, re-registers to another fusion terminal in the distribution area, and uploads the master station by the fusion terminal. The master station still judges whether the information of the device and the distribution area of the uploaded data are consistent. If consistent, the end module selects the correct distribution area to upload data.
[0041] An electronic device includes a processor, a memory and a bus, the processor and the memory are connected through the bus, wherein the memory is used to store a set of program codes, the processor is used to call the program codes stored in the memory, and a plug and play method based on distributed resources of power distribution network is executed.
[0042] The application discloses a nonvolatile computer storage medium, and the computer storage medium stores computer executable instructions.
[0043] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications, changes, omissions, substitutions, and equivalents can be made by one of ordinary skill in the art without departing from the spirit and scope of the application, which is defined by the following claims and their equivalents.
Claims
1. A plug-and-play system based on distributed resources in a power distribution network, characterized in that, include: End devices, converged terminals, IP-based dual-mode communication modules, plug-and-play micro-applications for the main station, and property management platforms; the end devices are connected to the IP-based dual-mode communication modules; the IP-based dual-mode communication modules are connected to the converged terminals; the converged terminals communicate with the property management platforms; and the property management platforms are connected to the plug-and-play micro-applications for the main station.
2. The plug-and-play system based on distributed resources in a power distribution network according to claim 1, characterized in that: The IP-based dual-mode communication module includes an IP-based terminal communication module and an IP-based headend communication module; the converged terminal includes a support APP, a data acquisition APP, and a data center APP; the terminal device is connected to the IP-based terminal communication module, the IP-based terminal communication module is connected to the IP-based headend communication module, and the IP-based headend communication module is connected to the converged terminal.
3. A plug-and-play method for distributed resources in a distribution network, applied to a plug-and-play system for distributed resources in a distribution network as described in any one of claims 1 and 2, characterized in that, Includes the following steps: When a terminal device accesses a distribution area, the IP-based terminal communication module interacts with the terminal device to obtain its address, device type, and ledger information. After the IP-based terminal communication module is networked, it obtains its own IP address and the IP address of the IP-based headend communication module, and requests the IP address of the converged terminal from the IP-based headend communication module. The IP-based terminal communication module sends a registration request to the converged terminal, which is then distributed by the supporting APP of the converged terminal to the corresponding application APP for processing. The registration information is parsed and stored in the data center. After receiving the registration confirmation, the IP-based terminal communication module completes the registration. The data center APP of the converged terminal monitors the online status of the terminal device in real time. When it confirms that the terminal device is stably connected, it sends an online message to the property management platform. After receiving the message, the property management platform automatically matches the pre-stored terminal device archive, pushes the complete archive to the main station, and triggers the collection APP of the converged terminal to actively report the real-time operation data of the terminal device to the plug-and-play micro-application of the main station. After receiving the terminal device files and running data, the main station's plug-and-play micro-application uses the area identification verification logic to determine whether the installation area recorded in the terminal device file is consistent with the area of the currently reported data. If there is a discrepancy, a device deletion command is issued to the converged terminal. The application (APP) in the converged terminal issues a removal data frame instruction to the corresponding terminal device. After receiving the removal data frame, the IP-based terminal communication module adds the network identifier of the current terminal device to the blacklist, starts re-entering the network, selects an adjacent distribution area and joins it. It then re-registers with the converged terminal in another distribution area on this network, and sends the data to the master station from this converged terminal. The master station still checks whether the device information and the distribution area sending the data are consistent. If they are consistent, the IP-based terminal communication module selects the correct distribution area to send the data.
4. The plug-and-play method for distributed resources in a distribution network according to claim 3, characterized in that: On the converged terminal, a device model is established for different devices. The device model indicates all the data points that the current device has. The APP on the converged terminal receives the device registration information and finds the corresponding device model in the data center through the device type and manufacturer code in the registration information. Then, it performs telemetry and remote control operations on the end device according to the data points in the device model.
5. A plug-and-play method for distributed resources in a distribution network according to claim 4, characterized in that: The process by which the IP-based terminal communication module interacts with the terminal device to obtain the terminal device's address, device type, and ledger information is as follows: The terminal module immediately begins to attempt to interact with the terminal device after being powered on. The terminal module incorporates mainstream device communication protocols, trying different protocols and baud rates until it establishes interaction with the terminal device. After that, it obtains the terminal device's address, device type, and ledger information to prepare for device registration.
6. A plug-and-play method for distributed resources in a distribution network according to claim 5, characterized in that: The headend module works in conjunction with the supporting APP on the converged terminal to adapt to the IP address of the converged terminal and keep it on the same network segment as the converged terminal's IP address.
7. A plug-and-play method for distributed resources in a distribution network according to claim 6, characterized in that: After the end communication module completes the network setup, it is assigned an IP address by the head communication module. At this point, the end module has its own IP address and obtains the IP address of the head module. It then requests the IP address of the converged terminal from the head module to prepare for device registration.
8. A plug-and-play method for distributed resources in a distribution network according to claim 7, characterized in that: The registration process is initiated by the terminal communication module and responded by the converged terminal. After obtaining the converged terminal's IP address and completing the interaction with the terminal device, the terminal communication module sends a registration request data frame to the converged terminal.
9. An electronic device, characterized in that, The device includes a processor, a memory, and a bus, wherein the processor and the memory are connected via the bus, the memory is used to store a set of program code, and the processor is used to call the program code stored in the memory to execute a plug-and-play method for distributed resources in a power distribution network as described in any one of claims 1-8.
10. A non-volatile computer storage medium storing computer-executable instructions, characterized in that, The computer can execute instructions to perform a plug-and-play method for distributed resources in a power distribution network as described in any one of claims 1-8.