CN115102277A - Internet of things low-voltage intelligent circuit breaker and internet of things system thereof - Google Patents

Internet of things low-voltage intelligent circuit breaker and internet of things system thereof Download PDF

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Publication number
CN115102277A
CN115102277A CN202210652414.7A CN202210652414A CN115102277A CN 115102277 A CN115102277 A CN 115102277A CN 202210652414 A CN202210652414 A CN 202210652414A CN 115102277 A CN115102277 A CN 115102277A
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China
Prior art keywords
internet
unit
module
things
protection
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CN202210652414.7A
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Chinese (zh)
Inventor
赵久勇
马晓昆
高振伟
齐永忠
王丹丹
薛莉
杨夏祎
梁薇
陈亚天
张国一
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State Grid Information and Telecommunication Co Ltd
Beijing Guodiantong Network Technology Co Ltd
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State Grid Information and Telecommunication Co Ltd
Beijing Guodiantong Network Technology Co Ltd
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Priority to CN202210652414.7A priority Critical patent/CN115102277A/en
Publication of CN115102277A publication Critical patent/CN115102277A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
    • H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/128—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Human Computer Interaction (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The application provides an thing networking low pressure intelligent circuit breaker and thing allies oneself with system thereof. Thing networking low pressure intelligent circuit breaker includes: the system comprises a management module, a protection module, an execution module, a power supply module and an Internet of things communication module; thing networking low pressure intelligent circuit breaker thing allies oneself with system includes: a plurality of thing networking low pressure intelligent circuit breaker, at least one thing allies oneself with the terminal with a plurality of thing networking low pressure intelligent circuit breakers pass through thing networking communication module communicates. According to the scheme, the management function and the protection function are achieved through two independent modules respectively, the operation efficiency and the stability of the low-voltage circuit breaker are prevented from being influenced by the performance of a single module, the protection module performs sampling independently to achieve the protection function more accurately, the operation software of the IOT terminal adopts the modular design based on the functions to ensure the stability and the reliability of each function, and therefore the intellectualization and the digitization level of the low-voltage circuit breaker and the IOT system are improved.

Description

Internet of things low-voltage intelligent circuit breaker and Internet of things system thereof
Technical Field
The application relates to the technical field of power electronic equipment, in particular to an Internet of things low-voltage intelligent circuit breaker and an Internet of things system thereof.
Background
The low-voltage circuit breaker is used as key end equipment of a power distribution station area, and the lean management level of the power distribution station area and the power supply service quality of a low-voltage distribution network are influenced.
For low-voltage circuit breakers in the related art, the problems of low intelligentization level, poor software and hardware expansibility, insufficient standardized design and the like exist.
Disclosure of Invention
In view of this, an object of the present application is to provide an internet of things low-voltage intelligent circuit breaker and an internet of things system thereof, so as to solve or partially solve the above problems.
Based on above-mentioned purpose, this application provides an thing networking low pressure intelligence circuit breaker, includes:
the system comprises a management module, a protection module, an execution module, a power supply module and an Internet of things communication module;
the management module is configured to acquire voltage and current in a line, perform non-current protection, modify setting parameters, send the modified parameter values to the protection module, and perform alarm indication according to received fault information of the protection module;
the protection module is configured to acquire current in a line, transmit an on-off control instruction to the execution module in response to a preset protection condition being met, and send fault information to the management module;
the execution module is configured to execute a protection action according to the received switching-on/off control instruction of the protection module; the protection action comprises controlling a switch of the circuit breaker to switch on and switch off;
the power module is configured to provide required power for the Internet of things low-voltage intelligent circuit breaker.
Further, this application still provides an thing networking low pressure intelligent circuit breaker thing allies oneself with system, includes:
a plurality of thing networking low pressure intelligence circuit breaker, at least one thing allies oneself with terminal as above any one, at least one thing allies oneself with the terminal with a plurality of thing networking low pressure intelligence circuit breaker pass through thing networking communication module communicates.
From the above, the internet of things low-voltage intelligent circuit breaker and the internet of things system thereof provided by the application form the internet of things low-voltage intelligent circuit breaker by the management module, the protection module, the execution module, the power module and the internet of things communication module, communicate a plurality of internet of things low-voltage intelligent circuit breakers with the internet of things terminal through the internet of things communication module to form the internet of things low-voltage intelligent circuit breaker internet of things system, and the information intercommunication among the modules. According to the scheme, the management function and the protection function are achieved through two independent modules respectively, the operation efficiency and the stability of the low-voltage circuit breaker are prevented from being influenced by the performance of a single module, the protection module performs sampling independently to achieve the protection function more accurately, the operation software of the IOT terminal adopts the modular design based on the functions to ensure the stability and the reliability of each function, and therefore the intellectualization and the digitization level of the low-voltage circuit breaker and the IOT system are improved.
Drawings
In order to more clearly illustrate the technical solutions in the present application or the related art, the drawings required to be used in the description of the embodiments or the related art are briefly introduced below, and it is obvious that the drawings in the following description are only the embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an internet of things low-voltage intelligent circuit breaker according to an embodiment of the application;
FIG. 2 is a schematic structural diagram of a management module according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a protection module according to an embodiment of the present application;
fig. 4 is a schematic architecture diagram of an operation module of the internet of things according to an embodiment of the present application;
fig. 5 is a resource allocation diagram of each unit of an operation module of the internet of things according to an embodiment of the present application;
FIG. 6 is a flowchart illustrating operation of a data listening sub-unit according to an embodiment of the present application;
FIG. 7 is a flowchart illustrating operation of a topology identification unit according to an embodiment of the present application;
fig. 8 is a flowchart illustrating operation of a protection communication unit according to an embodiment of the present application;
fig. 9 is a flowchart illustrating an operation of the communication management unit according to the embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application are described in detail below with reference to the accompanying drawings.
It should be noted that technical terms or scientific terms used in the embodiments of the present application should have a general meaning as understood by those having ordinary skill in the art to which the present application belongs, unless otherwise defined. The use of "first," "second," and similar terms in the embodiments of the present application do not denote any order, quantity, or importance, but rather the components are distinguished. The word "comprising" or "comprises", and the like, means that the element or item preceding the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The rapid construction of large-scale distributed power supplies requires the operation of a power distribution network to be accelerated to realize standardization, lean and intellectualization. The monitoring management of the power distribution area has important influence on the lean management level of the power distribution area and the power supply service quality of the low-voltage distribution network. The low-voltage circuit breaker is key-end equipment of a power distribution station, and reasonable deployment of the low-voltage circuit breaker is a key link for realizing depth perception of the station, improving user experience and optimizing operation.
For low-voltage circuit breakers in the related art, a single chip microcomputer or a single chip is mainly adopted, such as a thermomagnetic circuit breaker, an electronic circuit breaker, an old molded case circuit breaker and other traditional circuit breakers. However, the protection function and the management function of the conventional circuit breaker are mutually influenced by sharing the sampling data, so that the stability and reliability of each function are reduced; the sampling precision is low, and the voltage, the current, the electric quantity and the temperature cannot be accurately measured; the communication interface and the communication protocol are not uniform, the wiring debugging period of the equipment is long, and the communication is unreliable. In addition, the software architecture of the low-voltage circuit breaker internet of things system is unreasonable, and the modular design is not adopted, so that the function is single, and the high-level functions of topology identification, power failure reporting, line loss analysis and the like are not realized. Taking a thermomagnetic circuit breaker as an example, the circuit breaker only has two-stage protection, and the protection parameters are difficult to accurately set, and especially the circuit breaker cannot be conveniently set in occasions requiring level difference protection.
In view of this, the application provides an thing networking low pressure intelligent circuit breaker and thing networking system thereof, constitutes thing networking low pressure intelligent circuit breaker by management module, protection module, execution module, power module and thing networking communication module, communicates with thing networking terminal with the thing networking low pressure intelligent circuit breaker thing networking system of constituteing through thing networking communication module with thing, and information intercommunication between each module. According to the scheme, the management function and the protection function are respectively realized through two independent modules, so that the influence on the operation efficiency and the stability of the low-voltage circuit breaker due to the performance of a single module is avoided; the protection module independently samples to improve sampling precision, so that the protection function is more accurately realized, and the protection module can meet the independent power supply requirement through a self-generated power supply; the operation software of the Internet of things terminal adopts a modular design based on functions, and stability and reliability of each function are guaranteed, so that the intelligentization and digitization level of the Internet of things low-voltage intelligent circuit breaker Internet of things system is improved.
The Internet of things low-voltage intelligent circuit breaker can realize automatic construction of a network topology structure of a transformer area and automatic cleaning of transformer area files, so that manual inspection is replaced, and labor cost is reduced; the fault reason and the fault point are accurately positioned, the problems of equipment fault, line aging, electricity stealing and the like are solved in time, and the loss of electric quantity is reduced; the system has the advantages that automatic operation, intelligent monitoring and intelligent decision making of the whole architecture of the power internet of things are powerfully supported, the comprehensive fault studying and judging capability of the low-voltage distribution network is improved, the fault first-aid repair efficiency and the power supply reliability are improved, and the user service level is improved.
Fig. 1 shows a schematic structural diagram of an internet of things low-voltage intelligent circuit breaker 100 provided by an embodiment of the application.
Referring to fig. 1, an internet of things low-voltage intelligent circuit breaker 100 provided in the embodiment of the present application may include: the system comprises a management module 101, a protection module 102, an execution module 103, a power supply module 104 and an internet of things communication module 105.
In specific implementation, the management module 101 is configured to obtain voltage and current in a line, perform non-current protection, modify a setting parameter, send the modified parameter value to the protection module 102, and perform alarm indication according to the received fault information of the protection module 102;
in specific implementation, the protection module 102 is configured to obtain a current in a line, transmit a switching-on/off control instruction to the execution module 103 in response to a preset protection condition being met, and send fault information to the management module 101;
in specific implementation, the execution module 103 is configured to execute a protection action according to the received switching-on/off control instruction of the protection module 102; the protection action comprises controlling a switch of the circuit breaker to switch on and switch off;
in specific implementation, the power module 104 is configured to provide the required power to the internet of things low-voltage intelligent circuit breaker 100.
In some optional embodiments, the management module 101 and the protection module 102 may be connected by a wire, and may implement information intercommunication based on a dedicated communication serial port, thereby implementing transmission of information such as events and parameters.
In some alternative embodiments, the power module 104 may include an auxiliary power source and a backup power source. Specifically, the auxiliary power source may include ac to dc based on an ac voltage, and the backup power source may include a super capacitor. Responding to the normal work of the auxiliary power supply, providing a required power supply for the Internet of things low-voltage intelligent circuit breaker 100 and charging the backup power supply; in response to this auxiliary power's power supply not enough, convert this back-up source and continue to provide required power for thing networking low-voltage intelligent circuit breaker 100 to guarantee the stability of thing networking low-voltage intelligent circuit breaker 100 operation.
In some optional embodiments, the internet of things communication module 105 may include: RS485 communication interface, bluetooth, high-speed power line carrier communication module. Specifically, the RS485 communication interface supports communication protocols such as DL/T645-2007, Modbus-RTU, Q/GDW 1376.2-2013 and DL/T698.45-2017, and the Bluetooth comprises 5.0 or more low-power-consumption versions.
It can be seen from the above embodiments that the internet of things low-voltage intelligent circuit breaker of the application retains and perfects the protection function of the traditional low-voltage circuit breaker, and adopts the independent module design for the protection function, so that the protection function is not affected by other modules of the circuit breaker, namely, in response to the failure of the management module, the protection module can normally work, so as to ensure the stability and reliability of the protection function. In addition, the management function and the protection function are respectively designed into two independent modules, so that the algorithm required by a single module can be guaranteed to be completed, the memory is saved, the power consumption is low, and the operating efficiency of the low-voltage intelligent circuit breaker is improved.
In this embodiment, the management module 101 is a command center of the internet of things low-voltage intelligent circuit breaker 100, and can achieve data acquisition, data management, non-current protection, instruction interaction, and uplink/downlink communication control. As shown in fig. 2, the management module 101 may further include:
a first collecting unit 1011 configured to collect an input signal to obtain a voltage and a current in a line, and send the voltage and the current to the management unit;
a non-current protection unit 1012 configured to monitor the voltage and current of the first acquisition unit 1011 for non-current protection;
a parameter transmission unit 1013 configured to modify a setting parameter and send the modified parameter value to the protection module 102;
and an alarm indication unit 1014 configured to perform alarm indication according to the received fault information of the protection module 102, and store the fault information in a database.
In some embodiments, the non-current protection comprises: overvoltage protection, undervoltage protection, and open-phase protection. The non-current protection unit 1012 determines whether a preset non-current protection condition is satisfied based on the data of the first acquisition unit 1011, and performs a protection operation in response to satisfaction of an overvoltage protection condition, an undervoltage protection condition, or a phase loss protection condition.
In some embodiments, the alarm indication unit 1014 is specifically configured to turn on an alarm indication lamp for safety prompting based on the fault information sent by the protection module 102.
Fig. 3 shows a schematic structural diagram of the protection module 102. In this embodiment, the protection module 102 independently performs sampling to improve sampling accuracy, so as to more accurately implement a protection function, and can meet its own independent power supply requirement through a self-generated power supply. As shown in fig. 3, the protection module 102 includes:
a second collecting unit 1021 configured to collect an input signal to obtain a current in the line, calculate an effective value of each phase current, and send the calculated effective value to the determining unit 1022;
the judging unit 1022 is configured to transmit a switching-on/off control instruction to the executing module 103 according to the received effective value of each phase current of the second collecting unit 1021 and in response to that the effective value meets a preset protection condition, and send fault information to the managing module;
a storage unit 1023 configured to store the received modified parameter values of the management module 101 in a database;
a self-generated power supply unit 1024 configured to supply a required power to the protection module 102 by induction power.
In some alternative embodiments, the second acquiring unit 1021 is specifically configured to start by using a timed interrupt, then acquire the input signal to acquire the current in the line, calculate the effective value of each phase current in response to completing the acquisition for one cycle, and calibrate the effective value according to the calibration flag.
It should be understood that the collection precision of the second collection unit 1021 in this embodiment is higher than that of the first collection unit 1011, so as to improve the accuracy of determining whether the preset protection condition is met, to realize the protection function more accurately, and to avoid protection rejection or misoperation caused by low collection precision.
In some optional embodiments, the determining unit 1022 is specifically configured to determine whether the effective value of each phase current satisfies a predetermined protection condition according to a three-segment protection curve and an algorithm. Specifically, the protection conditions may include: overload long delay protection condition, short delay protection condition, snap protection condition and leakage protection condition.
In some optional embodiments, the self-generated power supply unit 1024 is specifically configured to convert the current signal of the line of the protection module 102 into a low level signal which is proportional to the primary current and can be processed, rectify the signal, and then pass through the power-taking power management chip ADP2450 for processing. Specifically, the output current source is converted into a 4.5V-36V voltage source, then 12V voltage is obtained by feeding back voltage of a divider resistor, and 3.3V voltage is output from the voltage source through a built-in voltage stabilizer, so as to supply power to the protection module 102. The driving current of the protection module 102 can reach 500 mA.
In addition, this application still provides an thing networking low pressure intelligent circuit breaker thing allies oneself with system, includes:
a plurality of internet of things low-voltage intelligent circuit breakers 10010, at least one internet of things terminal, the at least one internet of things terminal and the plurality of internet of things low-voltage intelligent circuit breakers 100 communicate through the internet of things communication module.
In this embodiment, the internet of things terminal includes a platform area intelligent convergence terminal or an edge internet of things agent device.
Further, in some embodiments, the internet of things terminal includes an internet of things operating module 400. The internet of things operating module 400 adopts a new generation of small-sized internet of things real-time operating system SW-rtos (smart Switch rtos). Specifically, the SW-RTOS system creatively can realize the support of multi-process and dynamic loading application on a processor with extremely rare resources, so that the application function and the system can be separately developed and independently upgraded without occupying large resource storage, thereby greatly reducing the hardware cost; the kernel space memory protection is supported, the kernel safety is improved, and the requirement of low power consumption is met.
Referring to fig. 4, an architecture diagram of an operation module 400 of the internet of things according to an embodiment of the present application is shown. This thing networking operation module 400 includes:
the monitoring unit 401 is configured to provide metering data to the topology identification unit 402, the protection communication unit 403, the communication management unit 404 and the routing management unit 405, and record and report fault events of the internet of things low-voltage intelligent circuit breaker 100;
the topology identification unit 402 is configured to perform topology identification on the internet of things low-voltage intelligent circuit breaker 100 according to the topology triggering instruction of the routing management unit 405, and clear or store the topology identification information;
a protection communication unit 403 configured to communicate with the protection module 102;
a communication management unit 404 configured to manage the internet of things communication module;
a route management unit 405 configured to implement mutual communication among the listening unit 401, the topology identifying unit 402, the protection communication unit 403, and the communication management unit 404.
In this embodiment, the units of the internet of things operating module 400 support one-way communication between the shared memory and the pipeline. FIG. 5 is a resource allocation diagram of the units.
As shown in fig. 5, the snooping unit 401 assigns ID number 1, sends pipe 0, and receives pipe 1; the topology identification unit 402 assigns an ID number of 2, sends a pipe 2, and receives a pipe 3; the protection communication unit 403, which assigns ID number 3, sends pipe 4, and receives pipe 5; a communication management unit 404 that assigns an ID number of 4, transmits pipe 6, and receives pipe 7; the route management unit 405 assigns an ID number of 5.
Further, in some embodiments, the listening unit 401 includes: a data listening subunit and an event listening subunit.
In specific implementation, the topology identification unit 402, the protection communication unit 403, the communication management unit 404, and the routing management unit 405 may read the metering data through the data monitoring subunit. The metering data may include: voltage, current, active, reactive, apparent power, etc.
In some optional embodiments, the data monitoring subunit is specifically configured to package, encapsulate and send metering data required by the topology identification unit 402, the protection communication unit 403, or the communication management unit 404 based on the routing management unit 405. Specifically, the data monitoring subunit monitors data sent by the route management unit 405, analyzes and judges the command according to the received data, extracts data to be read in the command after the command format and the command check pass, further reads corresponding data, and then packages and packages the data obtained by reading and sends the data to the route management unit 405.
Fig. 6 shows a flow chart of the operation of the data listening sub-unit. In some optional embodiments, the data monitoring subunit is specifically configured to initialize resources such as a structure body and a global variable, create a corresponding pipeline, then block whether other four units monitoring the internet of things operation module 400 send data, respond to the fact that a data packet is sent, determine a command, analyze the data packet after the determination is passed to obtain a source address, a destination address and data, and forward the obtained data to a unit corresponding to the destination address.
In specific implementation, the event monitoring subunit is configured to record a fault event of the internet of things low-voltage intelligent circuit breaker 100, and report the fault event in response to a preset report condition being met. Specifically, the fault event may include: overvoltage, undervoltage, phase loss, current loss, etc. The event monitoring subunit monitors events of the internet of things low-voltage intelligent circuit breaker 100, records the fault events in response to the detection of the occurrence of fault events such as overvoltage, undervoltage, phase failure, current loss and the like, calls an interface of the routing management unit 405, and reports the fault events needing to be reported.
Referring to fig. 7, it is a flowchart of the operation of the topology identifying unit 402 according to the embodiment of the present application. In some optional embodiments, the topology identifying unit 402 is specifically configured to initialize resources such as a structure, a global variable, etc., create a corresponding pipe, then block whether the snoop route management unit 405 sends data, in response to that a data packet is sent, parse the data packet, and execute a related command of topology identification according to a result of the parsing. Specifically, the command includes: the current topology information of the internet of things low-voltage intelligent circuit breaker 100 is cleared, the topology triggering instruction sent by the routing management unit 405 is received, topology identification operation is carried out, and relevant information of the topology identification is stored.
Fig. 8 is a flowchart of the operation of the protection communication unit 403. In some optional embodiments, the protection communication unit 403 is specifically configured to initialize required resources such as hardware resources, structural bodies, variables, and the like, start a data monitoring thread, respond to a monitored data packet sent, determine a command, analyze the data packet after the determination is passed to obtain corresponding data, and store the obtained data.
In another embodiment, the protection communication unit 403 is specifically configured to, in response to receiving the data sent by the route management unit 405 and requiring information such as a switch state, trip times, and the like, actively send the data to the protection module 102 through a serial port, and then read the required related information and package the read information to the route management unit 405. Specifically, the serial port includes a UART port used inside the core board.
Fig. 9 is a flowchart of the operation of the communication management unit 404. In some optional embodiments, the communication management unit 404 is specifically configured to initialize resources such as a structure and a global variable, start a serial port (RS485) monitoring thread or a carrier (high-speed power line carrier) monitoring thread, respond to that a data packet is sent, determine an input data command and record a corresponding input interface, analyze the data packet after the determination is passed, convert the data obtained by the analysis into an internal communication packet, send the internal communication packet to the route management unit 405, and wait for the route management unit 405 to return corresponding data and send the data to the internet of things terminal.
Some embodiments of the present application are described above. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments described above and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
It should be noted that, for convenience of description, the above devices are described by dividing functions into various modules and separately describing the modules. Of course, the functionality of the various modules may be implemented in the same one or more software and/or hardware implementations as the present application.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to those examples; within the context of the present application, technical features in the above embodiments or in different embodiments may also be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application described above, which are not provided in detail for the sake of brevity.
In addition, well-known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown in the provided figures for simplicity of illustration and discussion, and so as not to obscure the embodiments of the application. Furthermore, devices may be shown in block diagram form in order to avoid obscuring embodiments of the application, and this also takes into account the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform within which the embodiments of the application are to be implemented (i.e., specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the application, it should be apparent to one skilled in the art that the embodiments of the application can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative instead of restrictive.
While the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations to these embodiments will be apparent to those of ordinary skill in the art in light of the foregoing description.
The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalents, improvements, and the like that may be made without departing from the spirit or scope of the embodiments of the present application are intended to be included within the scope of the claims.

Claims (10)

1. The utility model provides a thing networking low pressure intelligence circuit breaker which characterized in that includes: the system comprises a management module, a protection module, an execution module, a power supply module and an Internet of things communication module;
the management module is configured to acquire voltage and current in a line, perform non-current protection, modify setting parameters, send the modified parameter values to the protection module, and perform alarm indication according to received fault information of the protection module;
the protection module is configured to acquire current in a line, transmit a switching-on/off control instruction to the execution module in response to a preset protection condition being met, and send fault information to the management module;
the execution module is configured to execute a protection action according to the received switching-on/off control instruction of the protection module; the protection action comprises controlling a switch of the circuit breaker to switch on and switch off;
the power module is configured to provide required power for the Internet of things low-voltage intelligent circuit breaker.
2. The internet of things low-voltage intelligent circuit breaker according to claim 1, wherein the management module comprises: the device comprises a first acquisition unit, a non-current protection unit, a parameter transmission unit and an alarm indication unit;
the first acquisition unit is configured to acquire an input signal to acquire voltage and current in a line and send the voltage and current to the management unit;
the non-current protection unit is configured to monitor according to the received voltage and current of the first acquisition unit so as to perform non-current protection;
the parameter transmission unit is configured to modify a setting parameter and send the modified parameter value to the protection module;
and the alarm indication unit is configured to perform alarm indication according to the received fault information of the protection module and store the fault information into a database.
3. The internet of things low-voltage intelligent circuit breaker according to claim 2, wherein the protection module comprises: the second acquisition unit, the judgment unit, the storage unit and the self-generating power supply unit;
the second acquisition unit is configured to acquire an input signal to acquire current in a line, calculate an effective value of each phase of current, and send the calculated effective value to the judgment unit;
the judging unit is configured to respond to the fact that the effective value of the received current of each phase of the second collecting unit meets a preset protection condition according to the received effective value, transmit a switching-on/off control instruction to the execution module, and send fault information to the management module;
the storage unit is configured to store the received modified parameter value of the management module in a database;
the self-generating power supply unit is configured to provide required power supply for the protection module through induction power taking.
4. The internet of things low-voltage intelligent circuit breaker according to claim 1, wherein the internet of things communication module comprises: RS485 communication interface, bluetooth, high-speed power line carrier communication module.
5. The Internet of things low-voltage intelligent circuit breaker according to claim 3, wherein the acquisition precision of the second acquisition unit is higher than that of the first acquisition unit.
6. The utility model provides a thing networking low pressure intelligence circuit breaker thing allies oneself with system which characterized in that includes:
the Internet of things low-voltage intelligent circuit breaker comprises a plurality of Internet of things low-voltage intelligent circuit breakers and at least one Internet of things terminal, wherein the at least one Internet of things terminal and the plurality of Internet of things low-voltage intelligent circuit breakers are communicated through the Internet of things communication module.
7. The Internet of things low-voltage intelligent circuit breaker Internet of things system as claimed in claim 6, wherein the Internet of things terminal comprises: thing networking operation module.
8. The Internet of things low-voltage intelligent circuit breaker Internet of things system as claimed in claim 6, wherein the Internet of things terminal comprises a platform area intelligent fusion terminal or an edge Internet of things agent device.
9. The internet of things low-voltage intelligent circuit breaker internet of things system of claim 7, wherein the internet of things operating module comprises: the device comprises a monitoring unit, a topology identification unit, a protection communication unit, a communication management unit and a route management unit;
the monitoring unit is configured to provide metering data for the topology identification unit, the protection communication unit, the communication management unit and the route management unit, and record and report fault events of the low-voltage intelligent circuit breaker of the Internet of things;
the topology identification unit is configured to perform topology identification on the Internet of things low-voltage intelligent circuit breaker according to a topology trigger instruction of the routing management unit, and clear or store the topology identification information;
the protection communication unit is configured to communicate with the protection module;
the communication management unit is configured to manage the internet of things communication module;
the route management unit is configured to realize mutual communication among the monitoring unit, the topology identification unit, the protection communication unit and the communication management unit.
10. The Internet of things low-voltage intelligent circuit breaker Internet of things system as claimed in claim 9, wherein the monitoring unit comprises: the data monitoring subunit and the event monitoring subunit;
the data monitoring subunit is configured to package and package the metering data required by the topology identification unit, the protection communication unit or the communication management unit based on the routing management unit and send the metering data;
the event monitoring subunit is configured to record a fault event of the internet of things low-voltage intelligent circuit breaker, and report the fault event in response to meeting a preset reporting condition.
CN202210652414.7A 2022-06-06 2022-06-06 Internet of things low-voltage intelligent circuit breaker and internet of things system thereof Pending CN115102277A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116191665A (en) * 2023-01-31 2023-05-30 国网上海能源互联网研究院有限公司 Message interaction device and method for low-voltage intelligent circuit breaker
CN117082108A (en) * 2023-10-16 2023-11-17 中盛新源智能电网科技有限公司 Internet of things communication method for intelligent low-voltage circuit breaker

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116191665A (en) * 2023-01-31 2023-05-30 国网上海能源互联网研究院有限公司 Message interaction device and method for low-voltage intelligent circuit breaker
CN116191665B (en) * 2023-01-31 2024-04-26 国网上海能源互联网研究院有限公司 Message interaction device and method for low-voltage intelligent circuit breaker
CN117082108A (en) * 2023-10-16 2023-11-17 中盛新源智能电网科技有限公司 Internet of things communication method for intelligent low-voltage circuit breaker
CN117082108B (en) * 2023-10-16 2023-12-26 中盛新源智能电网科技有限公司 Internet of things communication method for intelligent low-voltage circuit breaker

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