Configuration Internet of Things power distribution terminal system

Abstract

The invention provides a configuration Internet of Things power distribution terminal system which comprises a real-time core module and a management core module. The real-time core module is used for processing a measurement and control protection task, and the management core module is used for performing digital data summarization and edge calculation; each functional unit in the real-time core module directly communicates in the real-time core through a high-speed bus, and each functional unit in the management core module directly communicates in the management core module through a high-speed bus; the real-time core module communicates with the management core module, and security isolation between the double cores needs to be completed through the forward isolation module. By means of the mode, modular operation can be achieved, state self-evaluation of all the function units is achieved, and the manual intervention cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of power system automation technology, and in particular to a configurable Internet of Things (IoT) power distribution terminal system. Background Technology

[0002] Achieving accurate and reliable panoramic status perception in the distribution network is one of the important foundations for power companies to build a "observable, measurable, and controllable" digital panoramic perception system. Among them, IoT distribution terminals are an important component of building smart distribution networks and realizing distribution network automation.

[0003] However, with the development of artificial intelligence technology, intelligent algorithms are gradually being applied to power systems. These intelligent algorithms possess strong nonlinear model solving capabilities. However, the intelligent application of power distribution line fault process control is still not widespread, and the level of intelligence is low. When a fault occurs, it can only achieve early warning before the fault occurs, and it cannot accurately judge the fault during the fault or accurately locate the fault after the fault occurs.

[0004] Therefore, there is an urgent need for a new deployment method for IoT power distribution terminals to ensure economic efficiency while improving the reliability of the power distribution network. Summary of the Invention

[0005] The technical problem to be solved by this invention is: how to achieve modular operation of IoT power distribution terminal systems, enabling each functional unit to perform self-assessment of its status and reduce the cost of manual intervention.

[0006] This invention provides a configurable Internet of Things (IoT) power distribution terminal system, comprising: a real-time core module and a management core module; the real-time core module is used for processing measurement, control, and protection tasks, while the management core module performs digital data aggregation and edge computing; the functional units in the real-time core module communicate directly within the real-time core via a high-speed bus, and the functional units in the management core module communicate directly within the management core module via a high-speed bus; communication between the real-time core module and the management core module requires secure isolation between the two cores through a forward isolation module.

[0007] In this way, the present invention modularizes the IoT power distribution terminal system, dividing it into a real-time core module and a management core module. The real-time core module handles measurement, control, and protection tasks, while the management core module handles tasks such as digital data aggregation and edge computing. The functional units of the real-time and management cores are connected via a high-speed interface. Communication between the real-time and management core modules requires a forward isolation module to ensure secure isolation between the two cores, enabling modular operation. Each functional unit can perform self-assessment of its status, allowing for segmented processing and preventing mutual interference in the event of a fault, thus reducing the cost of manual intervention.

[0008] In the aforementioned configurable IoT power distribution terminal system, the functional units of the real-time core and management core are distributed in the APP functional application layer of different containers according to their respective characteristics.

[0009] By employing the above methods, the security and isolation of each functional unit are achieved. The failure of a single module will not affect the normal operation of other modules, greatly improving the reliability and security of the system.

[0010] In the aforementioned configurable IoT power distribution terminal system, the real-time core module includes a power supply unit, a wireless unit, a single-bay measurement and control unit, and a forward isolation module. The power supply unit of the real-time core module is used to provide power supply; the single-bay measurement and control unit is used to realize frequency measurement, data calculation, fault detection, and distributed feeder automation; the wireless unit is used to realize relay protection and fault recording; and the forward isolation module is used to realize information security detection and data storage of the first distribution zone.

[0011] Through the above methods, the functional units of the real-time core can realize functions such as frequency measurement, data calculation, fault detection, relay protection, fault recording, distributed feeder automation, information security detection of distribution zone 1, and data storage of distribution zone 1, enabling accurate judgment of faults in IoT power distribution terminals and precise location of faults after faults occur.

[0012] In the aforementioned configurable IoT power distribution terminal system, the management core module includes an IoT functional unit, a traveling wave ranging functional unit, a broadband measurement functional unit, and an early fault warning functional unit. Specifically, the IoT functional unit of the management core is used to implement information security detection, data storage, standardized modeling, and equipment status detection for the four power distribution zones; the traveling wave ranging functional unit is used to implement traveling wave ranging; the broadband measurement functional unit is used to implement broadband measurement; and the early fault warning functional unit is used to implement early fault warning.

[0013] Through the above methods, the functional units of the management core can realize functions such as information security detection of the four distribution zones, data storage of the four distribution zones, standardized models, traveling wave ranging, broadband measurement, early fault warning, and equipment status monitoring, so as to realize early warning before faults and accurate judgment during faults for IoT power distribution terminals.

[0014] In the aforementioned configurable IoT power distribution terminal system, the IoT power distribution terminal system uses at least one logic device to model the IoT power distribution terminal system; the logic device is used to realize the external communication function and module management of the IoT power distribution terminal system; the logic device includes measurement and control logic nodes, protection logic nodes, distributed feeder automation logic nodes, status auxiliary logic nodes and edge computing logic nodes.

[0015] In addition to the above methods, the system also includes logic devices, which consist of measurement and control logic nodes, protection logic nodes, distributed feeder automation logic nodes, status auxiliary logic nodes, and edge computing logic nodes. These logic nodes can perform telemetry, remote control and remote signaling functions of the real-time core, as well as fault detection and protection functions of the real-time core.

[0016] In the aforementioned configurable IoT power distribution terminal system, logical devices and logical nodes are obtained according to the logical node class of the IEC61850 standard; among them, the model control node in the edge computing node is a general automatic process control node, which is used to model edge computing functions not defined in the IEC61850 standard.

[0017] Through the above methods, the model established by this invention using the IEC61850 standard will achieve interoperability of power distribution automation terminals from various manufacturers.

[0018] In the aforementioned configurable IoT power distribution terminal system, the IoT power distribution terminal adopts a configurable design, including basic components; the basic components serve as the deployment carrier for edge applications, carrying real-time core modules and management core modules to realize system operation and protection.

[0019] The aforementioned configurable IoT power distribution terminal system further includes an expansion component, which is connected to the basic component via an external standard bus to enable storage and computing resource sharing.

[0020] Through the above approach, a configurable structural design is adopted. The basic components are the core of system operation, realizing functions such as protection, measurement and control, power metering, resource aggregation and distributed feeder automation. They are the only window for communication with the upper layers and the deployment carrier for edge applications. The extended components are configured as needed and are extensions of the basic components. They are connected to the basic components through an external standard bus to realize resource sharing such as storage, computing power and network channels.

[0021] The aforementioned configurable IoT power distribution terminal system adopts a blade-type structure, with the basic components and expansion components each consisting of multiple different blades, each blade independently performing computing tasks.

[0022] By adopting blade-type IoT power distribution terminals, fault isolation is achieved, ensuring that the normal operation of other functional units is not affected when a single functional unit fails. At the same time, the system operation and maintenance efficiency is improved. When a fault occurs, only the faulty blade needs to be located and replaced, reducing the downtime caused by the fault. Furthermore, it can be configured and easily expanded on demand according to the actual needs of the power distribution network, which not only avoids resource waste but also makes the scalability more flexible.

[0023] The beneficial effects achieved by this invention are as follows: This invention modularizes the IoT power distribution terminal system, dividing it into a real-time core module and a management core module. The real-time core module handles measurement, control, and protection tasks, while the management core module handles tasks such as digital data aggregation and edge computing. The functional units of the real-time and management cores are connected via a high-speed interface. Communication between the real-time and management core modules requires a forward isolation module to ensure secure isolation between the two cores, enabling modular operation. Each functional unit can perform self-assessment of its status, allowing for segmented processing and preventing mutual interference in the event of a fault, thus reducing the cost of manual intervention. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of a configurable Internet of Things (IoT) power distribution terminal system provided in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of a configurable Internet of Things (IoT) power distribution terminal system provided in Embodiment 2 of the present invention; Figure 3 This is a schematic diagram of the IoT power distribution terminal configuration structure design provided in Embodiment 2 of the present invention; Figure 4 This is a schematic diagram of the structure of the logic device and logic node provided in Embodiment 2 of the present invention. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0027] In the following embodiments of the present invention, "and / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. "At least one (item) below" or similar expressions refer to any combination of these items, including any combination of single (item) or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, a - b, a - c, b - c, or a - b - c, where a, b, and c can be single or multiple. The singular forms "a", "an", "said", "the above", "the", and "this" are also intended to include expressions such as "one or more" unless there is a clear contrary indication in the context. Also, unless otherwise stated, the ordinal numbers "first", "second", etc. mentioned in the embodiments of the present invention are used to distinguish multiple objects and are not used to limit the order, time sequence, priority, or importance of multiple objects.

[0028] Reference to "one embodiment" or "some embodiments" etc. described in the specification of the present invention means that in one or more embodiments of the present invention, specific features, structures, or characteristics described in conjunction with that embodiment are included. Thus, statements such as "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc., which appear at different places in this specification, do not necessarily all refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "comprise", "include", "have" and their variants all mean "include but not limited to", unless otherwise specifically emphasized.

[0029] Embodiment 1

[0030] Embodiment 1 of the present invention introduces a configured Internet of Things power distribution terminal system, and the system is as follows Figure 1 As shown, it includes a real-time core module and a management core module; Among them, the real-time core module is used to process measurement, control, and protection tasks, and the management core module is used to process tasks such as digital data aggregation and edge computing; each functional unit in the real-time core module communicates directly inside the real-time core through a high-speed bus, and each functional unit in the management core module communicates directly inside the management core module through a high-speed bus; for the real-time core module and the management core module to communicate, the security isolation between the two cores needs to be completed through a forward isolation module.

[0031] As Figure 1As shown, the IoT power distribution terminal software adopts a layered architecture design, using standardized and unified interfaces, models, protocols, and software configurations to achieve a unified language description and functional software definition for the terminals. Interface standardization unifies the interface specifications for terminal inputs, outputs, and communication modules. Model standardization uses a standardized and unified model to address the consistency issues of power distribution network business resources at the device, data, and business model levels. Protocol standardization, based on a unified information model, standardizes the communication protocols between the terminal and downstream data acquisition devices and with the upstream power terminal OS. Software configuration enables rapid application software development based on rich component services and containerized deployment, improving terminal applicability and scalability.

[0032] The software adopts a functional unit-based design, where the functional units of the real-time core and management core are distributed in the APP functional application layer of different containers according to their respective characteristics. The real-time core processor includes real-time power services and real-time power terminal services systems. Real-time power services include, for example, feeder automation, single-ended quantity protection, single-phase grounding, longitudinal protection, remote control functions, over-limit functions, status assessment, and harmonic analysis, as well as a visualization configuration module. The application layer and the basic platform layer communicate through a power data access interface. The basic platform layer includes modules such as a visualization configuration framework, a plug-and-play framework, a bus interface framework, a raw data interface, basic measurement, event recording, task registration, basic protection, and input / output, as well as a real-time power terminal services system, which can perform data transmission, process management, memory management, and device driver processes. It should be noted that the above specific descriptions of the application layer and basic platform layer are only examples, and this invention does not limit them.

[0033] The management core processor includes specialized business data and the power IoT business system. This specialized business data resides in different containers according to their functions. For example, log recording, IEC-104 protocols, and unified operation and maintenance are located outside the containers; insulation monitoring apps, fault analysis apps, station monitoring apps, and security linkage apps are in the same container; photovoltaic control apps, power management apps, and centralized meter reading apps are in the same container. The specialized business data of the application layer connects to the power IoT business system of the basic platform layer through open application interfaces. The basic platform layer includes a visual configuration framework, a plug-and-play framework, a bus interface framework, container management, model management, and a message bus. It also includes northbound services, southbound services, and security services, as well as the power IoT business system, which is responsible for the container runtime environment, file system management, memory management, process management, and device drivers. It should be noted that the above specific descriptions of the application layer and the basic platform layer are merely examples, and this invention does not limit them. The real-time core and the management core can share messages, and the real-time core and the management core communicate with the hardware layer through a unified device access interface. The above functions can be implemented in any feasible manner in the prior art, and this invention does not limit them.

[0034] The real-time core module includes a power supply unit, a wireless unit, a single-bay measurement and control unit, and a forward isolation module. The power supply unit provides power; the single-bay measurement and control unit performs frequency measurement, data calculation, fault detection, and distributed feeder automation; the wireless unit performs relay protection and fault recording; and the forward isolation module performs information security detection and data storage for distribution zone 1. These functions can be implemented using any feasible method in the prior art, and this invention does not limit the scope of implementation.

[0035] The management core module includes an IoT functional unit, a traveling wave ranging functional unit, a broadband measurement functional unit, and an early fault warning functional unit. Specifically, the IoT functional unit of the management core is used to implement information security detection, data storage, standardized modeling, and equipment status monitoring for the four power distribution zones; the traveling wave ranging functional unit is used to implement traveling wave ranging; the broadband measurement functional unit is used to implement broadband measurement; and the early fault warning functional unit is used to implement early fault warning. These functions can be implemented using any feasible method in the prior art, and this invention does not limit them.

[0036] Example 2

[0037] Embodiment 2 of the present invention further introduces a configurable Internet of Things (IoT) power distribution terminal system based on Embodiment 1. The system is as follows: Figure 2As shown, the configurable IoT power distribution terminal system in this embodiment adopts a blade-type, configurable, and modular design. By using blade-type IoT power distribution terminals, fault isolation is achieved, ensuring that a fault in a single functional unit does not affect the normal operation of other functional units. Simultaneously, it improves system operation and maintenance efficiency; when a fault occurs, only the faulty blade needs to be located and replaced, reducing downtime caused by the fault. Furthermore, it allows for on-demand configuration and convenient expansion according to the actual needs of the power distribution network, avoiding resource waste and making scalability more flexible. The configurable design enables efficient and convenient configuration, reducing development difficulty and improving development efficiency. The modular design ensures that each functional unit is independent, enabling unit-based maintenance and self-assessment of functional unit status, reducing manual intervention costs. Modular design and fault early warning reduce long-term operation and maintenance costs.

[0038] like Figure 2 The diagram shown is a design block diagram of a configurable IoT power distribution terminal system according to Embodiment 2 of the present invention. The IoT power distribution terminal adopts a modular design, integrating a real-time core and a management core. The real-time core implements measurement, control, protection, and communication functions, and can meet the requirements of ring networks and pole-mounted switches by adding or removing single-bay measurement and control modules. The management core implements IoT and communication functions, and is equipped with terminal health status self-checking, sensor gateway aggregation, edge computing, and other functions. Optional modules include traveling wave ranging, broadband measurement, and early fault warning modules. A forward isolation module ensures data security between the real-time core and the management core.

[0039] like Figure 2 As shown, the configurable IoT power distribution terminal system includes a production control area and a management information area. The production control area includes remote control creation, data acquisition, self-healing control, and fault handling. The production control area and the management information area transmit data through a physical isolation device. The management information area includes modules for power distribution terminal management, power distribution fault analysis, power line fault traveling wave location, terminal setting management, and early warning of power line faults. It is important to note that although power distribution area one and power distribution area four share a bus interface, they do not communicate with each other within this area.

[0040] The configurable design scheme consists of basic components and extended components. The basic components serve as the deployment platform for edge applications, carrying real-time and management core modules for system operation and protection. The extended components connect to the basic components via an external standard bus to enable storage and computing resource sharing. For example... Figure 3As shown, the IoT power distribution terminal adopts a configurable structure design, including basic components and expansion components. The basic components are the core of the system operation, realizing functions such as protection, measurement and control, power metering, resource aggregation, and distributed feeder automation. They are the only window for communication with upstream systems and the deployment carrier for edge applications. The expansion components are configured as needed and are extensions of the basic components. They connect to the basic components through an external standard bus to achieve resource sharing such as storage, computing power, and network channels.

[0041] The basic and expansion components are each composed of multiple different blades. By adopting blade-type IoT power distribution terminals, fault isolation is achieved. When a single functional unit fails, it does not affect the normal operation of other functional units. At the same time, the system operation and maintenance efficiency is improved. When a fault occurs, only the faulty blade needs to be located and replaced, reducing the downtime caused by the fault. It can also be configured and easily expanded on demand according to the actual needs of the power distribution network, which not only avoids resource waste but also makes the scalability more flexible.

[0042] The configurable IoT power distribution terminal system provided by this invention uses at least one logic device to model the IoT power distribution terminal system; the logic device is used to realize the external communication function and module management function of the IoT power distribution terminal system; the logic device consists of a measurement and control logic node LD1, a protection logic node LD2, a distributed feeder automation logic node LD3, a status auxiliary logic node LD4, and an edge computing logic node LD5.

[0043] Logical devices and logical nodes are obtained according to the logical node class of the IEC 61850 standard; among them, the model control node in the edge computing node is a general automatic process control node, which is used to model edge computing functions not defined in the IEC 61850 standard.

[0044] like Figure 4 As shown, the standardized model is divided into five logical devices (LDs) according to the modeling principles of the IEC 61850 standard: Measurement and Control Logic Node LD1, Protection Logic Node LD2, Distributed Feeder Automation Logic Node LD3, Auxiliary Logic Node LD4, and Edge Computing Node LD5. The logical nodes of LD1, LD2, LD3, LD4, and LD5 all come from the logical node classes of the IEC 61850 standard. The model control in the edge computing node LD5 is general automatic process control, used to model edge computing functions not defined in the IEC 61850 standard.

[0045] Among them, the measurement and control logic node LD1 mainly completes the telemetry, remote control, and remote signaling functions of the real-time core; the protection logic node LD2 mainly completes the fault detection and protection functions of the real-time core; the distributed feeder automation logic node LD3 mainly completes the fault detection and fault isolation functions of the real-time core; the auxiliary logic device LD4 includes logic nodes such as human-machine interface, status data storage, backup power management, wireless module management, power module management, line electrical sensors, and line status sensors, and the management core mainly completes the status acquisition and storage functions of local key functional devices; the edge computing logic node LD5 mainly completes the data analysis and distillation of all sensors on the line, and completes edge computing and result output. The functions implemented by the above logic nodes can be implemented in any feasible way in the prior art, and this invention does not limit them.

[0046] The distributed modular design provided by this invention meets the capacity expansion requirements of each functional unit. The dual-core design greatly satisfies the requirements for panoramic monitoring of electrical and status quantities. The model established using the IEC61850 standard will realize the interoperability of power distribution automation terminals from various manufacturers.

[0047] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "up," "down," "front," "rear," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to explain the relative positional relationship and movement between components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. These terms are used only for the convenience of describing the invention and for simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the invention.

[0048] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0049] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0050] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A configurable Internet of Things (IoT) power distribution terminal system, characterized in that, include: The real-time core module and the management core module are used to process measurement and control protection tasks, while the management core module performs digital data aggregation and edge computing. Each functional unit in the real-time core module communicates directly within the real-time core via a high-speed bus, and each functional unit in the management core module communicates directly within the management core module via a high-speed bus. Communication between the real-time core module and the management core module requires secure isolation between the two cores through a forward isolation module.

2. The Internet of Things power distribution terminal system according to claim 1, characterized in that, The functional units of the real-time core module and the management core module are distributed in the APP functional application layer of different containers according to their different business functions.

3. The Internet of Things power distribution terminal system according to claim 2, characterized in that, The real-time core module includes a power function unit, a wireless function unit, a single-interval measurement and control function unit, and a forward isolation module; The real-time core module's power supply unit is used to provide power; the single-bay measurement and control unit is used to realize frequency measurement, data calculation, fault detection, and distributed feeder automation; the wireless unit is used to realize relay protection and fault recording; and the forward isolation module is used to realize information security detection and data storage for distribution zone 1.

4. The Internet of Things power distribution terminal system according to claim 3, characterized in that, The management core module includes an IoT function unit, a traveling wave ranging function unit, a broadband measurement function unit, and an early fault warning function unit. The IoT function unit of the management core is used to realize information security detection, data storage, standardized model and equipment status detection of the four power distribution zones; the traveling wave ranging function unit is used to realize traveling wave ranging; the broadband measurement function unit is used to realize broadband measurement; and the early fault warning function unit is used to realize early fault warning.

5. The Internet of Things power distribution terminal system according to claim 1, characterized in that, The IoT power distribution terminal system uses at least one logic device to model the IoT power distribution terminal system; the logic device is used to implement the external communication function and module management of the IoT power distribution terminal system. The logic devices include measurement and control logic nodes, protection logic nodes, distributed feeder automation logic nodes, status auxiliary logic nodes, and edge computing logic nodes.

6. The Internet of Things power distribution terminal system according to claim 5, characterized in that, The logical device and the logical node are obtained according to the logical node class of the IEC61850 standard; the model control node in the edge computing node is a general automatic process control node, which is used to model the edge computing functions not defined in the IEC61850 standard.

7. A configurable Internet of Things (IoT) power distribution terminal, characterized in that, The IoT power distribution terminal adopts a configurable design, including basic components; The basic components serve as the deployment carrier for edge applications, carrying real-time core modules and management core modules to enable system operation and protection.

8. The configurable IoT power distribution terminal according to claim 7, wherein the terminal further includes an expansion component, the expansion component being connected to the basic component via an external standard bus for realizing storage and computing resource sharing.

9. The Internet of Things power distribution terminal according to claim 7, characterized in that, The terminal adopts a blade-type structure, and the basic components and expansion components are each composed of multiple different blades, each of which independently performs computing tasks.

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