CN114157024A - 10 kilovolt distribution automation interconnection switch auxiliary metering device - Google Patents

10 kilovolt distribution automation interconnection switch auxiliary metering device Download PDF

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Publication number
CN114157024A
CN114157024A CN202111401756.3A CN202111401756A CN114157024A CN 114157024 A CN114157024 A CN 114157024A CN 202111401756 A CN202111401756 A CN 202111401756A CN 114157024 A CN114157024 A CN 114157024A
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CN
China
Prior art keywords
metering
electric energy
power supply
phase
metering device
Prior art date
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Pending
Application number
CN202111401756.3A
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Chinese (zh)
Inventor
刘海涛
胡尊严
林浩
孙晓东
孙晓飞
陈奉雷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Shandong Electric Power Co Juxian Power Supply Co
Original Assignee
State Grid Shandong Electric Power Co Juxian Power Supply Co
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Publication date
Application filed by State Grid Shandong Electric Power Co Juxian Power Supply Co filed Critical State Grid Shandong Electric Power Co Juxian Power Supply Co
Priority to CN202111401756.3A priority Critical patent/CN114157024A/en
Publication of CN114157024A publication Critical patent/CN114157024A/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
    • 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
    • H02J13/00026—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 involving a local wireless network, e.g. Wi-Fi, ZigBee or Bluetooth
    • 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
    • H02J13/0005—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving power plugs or sockets
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • 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
    • 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
    • Y04S40/124—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 using wired telecommunication networks or data transmission busses
    • 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
    • Y04S40/126—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 using wireless data transmission

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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 invention provides a 10 KV distribution automation interconnection switch auxiliary metering device, which comprises: the device comprises a box body, a power supply control module and a power supply control module, wherein a metering combined junction box, a three-phase three-wire electric energy meter, a wireless communication module and a PLC control module are arranged in the box body; an aviation socket is arranged on the box body; the input end of the metering combined junction box is connected with the power supply end through an open-circuit prevention aviation plug; the output end of the metering combined junction box is connected with a power supply line through an aviation socket; the metering output end of the metering combined junction box is connected with the input end of the three-phase three-wire electric energy meter; the output end of the three-phase three-wire electric energy meter is connected with the metering input end of the metering combined junction box; the device can realize self-powered power supply and photovoltaic power generation, and meets the use requirements of various occasions. The device can realize the functions of current acquisition, voltage acquisition, electric energy metering, electric quantity information uploading and self power supply.

Description

10 kilovolt distribution automation interconnection switch auxiliary metering device
Technical Field
The invention relates to the technical field of distribution automation, in particular to an auxiliary metering device for a 10 kV distribution automation interconnection switch.
Background
At present, with the rapid development of economy, the requirement on the power supply reliability of a power distribution network is higher and higher, and the grid structure and the intelligent level of the power distribution network are continuously improved. The grid structure that distribution lines realize two-contact or three-contact through the automatic switch appears in the 10 kV power distribution network, and the power supply reliability is effectively improved. Under the normal operation mode, the interconnection switch is in the disconnection state, and when the circuit breaks down or changes the operation mode, the interconnection switch is switched on and operated, and the trend changes along with it. To effectively measure the power and loss of each line, a measuring point is required to be arranged at a contact point for measurement.
Can install CT, PT on the interconnection switch that possesses the installation condition and be used for gathering interconnection switch's electric current and voltage, but many CTs are only protection and 2 windings of measurement, lack drawing of measurement winding, can't gather three-phase electricity, can not carry out effectual measurement to the electric quantity.
Disclosure of Invention
The invention provides an auxiliary metering device for a 10 kV distribution automatic interconnection switch, which can collect the current and voltage of the interconnection switch, calculate the electric energy data, upload the electric energy data and conveniently monitor the state of a grid structure.
The method comprises the following steps: the device comprises a box body, a power supply control module and a power supply control module, wherein a metering combined junction box, a three-phase three-wire electric energy meter, a wireless communication module and a PLC control module are arranged in the box body;
an aviation socket is arranged on the box body;
the input end of the metering combined junction box is connected with the power supply end through an open-circuit prevention aviation plug;
the output end of the metering combined junction box is connected with a power supply line through an aviation socket;
the metering output end of the metering combined junction box is connected with the input end of the three-phase three-wire electric energy meter;
the output end of the three-phase three-wire electric energy meter is connected with the metering input end of the metering combined junction box;
the PLC control module is connected with the three-phase three-wire electric energy meter, obtains current and voltage data measured by the three-phase three-wire electric energy meter, calculates electric energy data and uploads the electric energy data to the upper computer through the wireless communication module.
It should be further noted that a power module is also arranged inside the box body;
and the power supply module is respectively connected with the three-phase three-wire electric energy meter and the PLC control module and is used for respectively supplying power to the three-phase three-wire electric energy meter and the PLC control module.
It should be further noted that the power module is provided with a storage battery, a 24 v-to-12 v power transformation circuit, a 12 v-to-5 v power transformation circuit and a 5 v-to-3.3 v power transformation circuit;
and the power supply end of the storage battery is sequentially connected with a 24 v-to-12 v power transformation circuit, a 12 v-to-5 v power transformation circuit and a 5 v-to-3.3 v power transformation circuit to supply power to the internal electric elements of the metering device.
The charging end of the storage battery is connected with a solar charging and discharging controller, and the solar charging and discharging controller is connected with a photovoltaic power generation panel.
It should be further noted that the solar charge-discharge controller includes: the LED light source comprises a photoresistor R1, a resistor R2, a capacitor C1, a capacitor C2, a triode Q1, an inductor L1, an LED lamp, a diode D1, a diode D2 and a DPS chip;
the first end of the photovoltaic power generation board is respectively connected with the base electrode of the triode Q1, the collector electrode, the first end of the photoresistor R1, the first end of the capacitor C1, the second pin of the DPS chip, the first end of the inductor L1 and the first end of the storage battery; the second end of the photovoltaic power generation panel is connected with the anode of a diode D1; the cathode of the diode D1 is respectively connected with the second end of the resistor R2, the three pins of the DPS chip, the anode of the diode D2 and the second end of the storage battery;
an emitter of the triode Q1 is respectively connected with the second end of the photoresistor R1, the first end of the resistor R2, the second end of the capacitor C1, the first end of the capacitor C2 and one pin of the DPS chip; four pins of the DPS chip are respectively connected with the second end of the inductor L1, the cathode of the LED lamp and the second end of the capacitor C2; the anode of the LED lamp is connected with the cathode of the diode D2.
It should be further noted that the wireless communication module is connected with a wireless antenna.
The wireless communication module adopts a Wi-Fi communication mode, a Wibro wireless broadband communication mode, a global microwave interconnection communication mode or an HSDPA high-speed downlink packet access communication mode.
It should be further noted that a touch display screen is also installed on the box body;
the touch display screen is connected with the PLC control module.
The interior of the box body is also provided with a clock circuit, a storage, an ESAM module and a 485 interface;
the clock circuit, the storage, the ESAM module and the 485 interface are respectively connected with the PLC control module.
It should be further noted that the three-phase three-wire electric energy meter includes a metering chip, a voltage sampling circuit and a current transformer.
According to the technical scheme, the invention has the following advantages:
the 10 kV distribution automatic interconnection switch auxiliary metering device provided by the invention can realize self-powered supply and photovoltaic power generation, and meets the use requirements of various occasions. The device can realize the functions of current acquisition, voltage acquisition, electric energy metering, electric quantity information uploading and self power supply.
The aviation socket and the aviation plug can be conveniently connected between the CT and PT leading-out cables and the distribution automation terminal, and the short circuit terminal of the anti-open aviation plug supports disconnection and maintenance of a live circuit.
The metering united junction box can be used for disconnecting and connecting current and voltage connecting lines of input and output cables. The control signal line is directly communicated, and the normal use and the safety of the distribution automation terminal are not influenced. The metering combined junction box is provided with a connecting sheet which can conveniently break or short a current loop and a voltage loop.
The box of device has functional modules such as three-phase three-wire strapping table, PLC communication module, battery and power module in, can also dispose other modules as required, can use PLC and main website communication in a flexible way. The device has the advantages of modular and integrated design, safe and reliable use process and strong practicability.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic view of an auxiliary metering device of a 10 kv distribution automatic tie switch;
fig. 2 is a schematic view of an embodiment of an auxiliary metering device of a 10 kv distribution automatic tie switch;
fig. 3 is a circuit diagram of a solar charge-discharge controller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention provides a 10 kv distribution automation tie switch auxiliary metering device, which may be implemented as a computer software program according to an embodiment of the present invention, as shown with reference to fig. 1 to 3. For example, embodiments of the invention include a computer program product comprising a computer program embodied on a computer-readable storage medium, the computer program comprising program code for performing the method illustrated by the flow chart. In such embodiments, the metering device may be downloaded and installed from a network via the communication section, and/or installed from a removable medium. The computer program, when executed by a Central Processing Unit (CPU), performs various functions defined in the methods and/or apparatus of the present application.
The metering device comprises: the metering combination junction box 2, the three-phase three-wire electric energy meter 3, the wireless communication module 11 and the PLC control module 4 are arranged in the box body 9;
the box body 9 is provided with an aviation socket 1; the input end of the metering combined junction box 2 is connected with a power supply end through an open-circuit prevention aviation plug 6; the output end of the metering combined junction box 2 is connected with a power supply line 8 through an aviation socket 1; the metering output end of the metering combined junction box 2 is connected with the input end of a three-phase three-wire electric energy meter 3; the output end of the three-phase three-wire electric energy meter 3 is connected with the metering input end of the metering combined junction box 2;
the PLC control module 4 is connected with the three-phase three-wire electric energy meter 3, obtains current and voltage data measured by the three-phase three-wire electric energy meter 3, calculates electric energy data, and uploads the electric energy data to the upper computer through the wireless communication module 11.
The invention can realize self-powered power supply and photovoltaic power generation, and meets the use requirements of various occasions. The device can realize the functions of current acquisition, voltage acquisition, electric energy metering, electric quantity information uploading and self power supply.
The aviation socket and the aviation plug can be conveniently connected between the CT and PT outgoing cables and the distribution automation terminal, and the short-circuit terminal of the anti-open aviation plug 6 supports disconnection and maintenance of a live circuit.
The metering united junction box can be used for disconnecting and connecting current and voltage connecting lines of input and output cables. The control signal line is directly communicated, and the normal use and the safety of the distribution automation terminal are not influenced. The metering combined junction box is provided with a connecting sheet which can conveniently break or short a current loop and a voltage loop.
The box of device has functional modules such as three-phase three-wire strapping table, PLC communication module, battery 20 and power module in, can also dispose other modules as required, can use PLC and main website communication in a flexible way. The device has the advantages of modular and integrated design, safe and reliable use process and strong practicability.
The three-phase three-wire electric energy meter 3 comprises a metering chip 17, a voltage sampling circuit 18 and a current transformer 19. The voltage sampling circuit 18 can achieve voltage acquisition of three-phase power. The current transformer 19 can realize the current acquisition of three-phase power. The metering chip 17 can calculate the electric energy according to the acquired voltage and current.
The PLC control module 4 is connected with a touch display screen 12, a clock circuit 13, a storage 14, an ESAM module 15 and a 485 interface 16;
the touch display screen 12 can display the operation state of the metering device. And control instructions and parameter configuration input by a user can be acquired.
The clock circuit 13 may provide time parameters that are configured for each acquired voltage, current and power to allow the user to know the point in time for each acquisition. The PLC control module 4 may also perform timing based on the clock circuit 13 according to a collection time point set by a user, and perform voltage and current collection when a preset time point is reached. The memory 14 may store the acquired data. The ESAM module 15 plays a role in device security protection.
The PLC control module 4 may be implemented in a computer readable medium using, for example, computer software, hardware, or any combination thereof. For hardware implementation, the embodiments described herein may be implemented using at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a processor, a controller, a microcontroller, a microprocessor, and an electronic unit designed to perform the functions described herein, and in some cases, such embodiments may be implemented in a controller. For a software implementation, the implementation such as a process or a function may be implemented with a separate software module that allows performing at least one function or operation. The software codes may be implemented by software applications (or programs) written in any suitable programming language, which may be stored in memory and executed by the controller.
The box body related to the invention can be fixed to a power distribution room or a detection position. The box body can be provided with a box door, the box body can be made of insulating materials, and the box body is provided with an installation mechanism which is installed at a fixed position through screws or bolts.
The wireless communication module 11 of the present invention is connected to a wireless antenna 10. Specifically, the wireless communication module 11 employs a Wi-Fi communication scheme, a Wibro wireless broadband communication scheme, a global microwave interconnection communication scheme, or an HSDPA high speed downlink packet access communication scheme.
The inside of the box body is also provided with a power module 5; the power module 5 is respectively connected with the three-phase three-wire electric energy meter 3 and the PLC control module 4 and is used for respectively supplying power to the three-phase three-wire electric energy meter 3 and the PLC control module 4.
The power module 5 is provided with a storage battery 20, a 24 v-to-12 v power transformation circuit, a 12 v-to-5 v power transformation circuit and a 5 v-to-3.3 v power transformation circuit; the power supply end of the storage battery 20 is connected with a 24 v-to-12 v power transformation circuit, a 12 v-to-5 v power transformation circuit and a 5 v-to-3.3 v power transformation circuit in sequence to supply power to the internal electrical elements of the metering device.
The charging end of the storage battery 20 is connected with a solar charging and discharging controller, and the solar charging and discharging controller is connected with a photovoltaic power generation panel 7.
Illustratively, the solar charge-discharge controller comprises: the LED light source comprises a photoresistor R1, a resistor R2, a capacitor C1, a capacitor C2, a triode Q1, an inductor L1, an LED lamp, a diode D1, a diode D2 and a DPS chip; the first end of the photovoltaic power generation board 7 is respectively connected with the base electrode of the triode Q1, the collector electrode, the first end of the photoresistor R1, the first end of the capacitor C1, the second pin of the DPS chip, the first end of the inductor L1 and the first end of the storage battery 20; the second end of the photovoltaic power generation panel 7 is connected with the anode of the diode D1; the cathode of the diode D1 is respectively connected with the second end of the resistor R2, the three pins of the DPS chip, the anode of the diode D2 and the second end of the storage battery 20;
an emitter of the triode Q1 is respectively connected with the second end of the photoresistor R1, the first end of the resistor R2, the second end of the capacitor C1, the first end of the capacitor C2 and one pin of the DPS chip; four pins of the DPS chip are respectively connected with the second end of the inductor L1, the cathode of the LED lamp and the second end of the capacitor C2; the anode of the LED lamp is connected with the cathode of the diode D2.
The photovoltaic power generation panel 7 converts light energy into electric energy, the electric energy is stored in the storage battery 20 through the solar charging and discharging controller, and the storage battery 20 supplies power to electric elements in the metering device. The photoresistor R1 can sense sunlight illumination, sense light illumination, and if the light illumination is lower than a preset threshold, an external power supply supplies power to electric elements inside the metering device or charges the storage battery 20. The LED lamp serves as a display for the charging process. The storage battery 20 is a lead-acid battery, a lithium battery or a nickel-metal hydride battery.
The 10 KV distribution automation interconnection switch auxiliary metering device provided by the invention can be arranged between CT and PT down leads and a distribution automation terminal and is used for collecting interconnection switch electric energy data. The metering device collects electric energy by a method of connecting in series with a measuring winding and communicates with an electric energy main station. The aviation socket and the aviation plug realize the connection of current and voltage input and output, and are convenient to use in a plug-in manner.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. An auxiliary metering device for a 10 KV distribution automatic interconnection switch, comprising: the device comprises a box body, a power supply control module and a power supply control module, wherein a metering combined junction box, a three-phase three-wire electric energy meter, a wireless communication module and a PLC control module are arranged in the box body;
an aviation socket is arranged on the box body;
the input end of the metering combined junction box is connected with the power supply end through an open-circuit prevention aviation plug;
the output end of the metering combined junction box is connected with a power supply line through an aviation socket;
the metering output end of the metering combined junction box is connected with the input end of the three-phase three-wire electric energy meter;
the output end of the three-phase three-wire electric energy meter is connected with the metering input end of the metering combined junction box;
the PLC control module is connected with the three-phase three-wire electric energy meter, obtains current and voltage data measured by the three-phase three-wire electric energy meter, calculates electric energy data and uploads the electric energy data to the upper computer through the wireless communication module.
2. The 10 kV distribution automation tie switch sub-metering device of claim 1,
a power supply module is also arranged in the box body;
and the power supply module is respectively connected with the three-phase three-wire electric energy meter and the PLC control module and is used for respectively supplying power to the three-phase three-wire electric energy meter and the PLC control module.
3. The 10 kV distribution automation tie switch sub-metering device of claim 2,
the power module is provided with a storage battery, a 24 v-to-12 v power transformation circuit, a 12 v-to-5 v power transformation circuit and a 5 v-to-3.3 v power transformation circuit;
and the power supply end of the storage battery is sequentially connected with a 24 v-to-12 v power transformation circuit, a 12 v-to-5 v power transformation circuit and a 5 v-to-3.3 v power transformation circuit to supply power to the internal electric elements of the metering device.
4. The 10 kV distribution automation tie switch sub-metering device of claim 3,
the charging end of the storage battery is connected with a solar charging and discharging controller, and the solar charging and discharging controller is connected with a photovoltaic power generation panel.
5. The 10 kV distribution automation tie switch sub-metering device of claim 4,
the solar charging and discharging controller includes: the LED light source comprises a photoresistor R1, a resistor R2, a capacitor C1, a capacitor C2, a triode Q1, an inductor L1, an LED lamp, a diode D1, a diode D2 and a DPS chip;
the first end of the photovoltaic power generation board is respectively connected with the base electrode of the triode Q1, the collector electrode, the first end of the photoresistor R1, the first end of the capacitor C1, the second pin of the DPS chip, the first end of the inductor L1 and the first end of the storage battery; the second end of the photovoltaic power generation panel is connected with the anode of a diode D1; the cathode of the diode D1 is respectively connected with the second end of the resistor R2, the three pins of the DPS chip, the anode of the diode D2 and the second end of the storage battery;
an emitter of the triode Q1 is respectively connected with the second end of the photoresistor R1, the first end of the resistor R2, the second end of the capacitor C1, the first end of the capacitor C2 and one pin of the DPS chip; four pins of the DPS chip are respectively connected with the second end of the inductor L1, the cathode of the LED lamp and the second end of the capacitor C2; the anode of the LED lamp is connected with the cathode of the diode D2.
6. The 10 kV distribution automation tie switch sub-metering device of claim 1,
the wireless communication module is connected with a wireless antenna.
7. The 10 kV distribution automation tie switch sub-metering device of claim 1,
the wireless communication module adopts a Wi-Fi communication mode, a Wibro wireless broadband communication mode, a global microwave interconnection communication mode or an HSDPA high-speed downlink packet access communication mode.
8. The 10 kV distribution automation tie switch sub-metering device of claim 1,
the box body is also provided with a touch display screen;
the touch display screen is connected with the PLC control module.
9. The 10 kV distribution automation tie switch sub-metering device of claim 1,
the interior of the box body is also provided with a clock circuit, a storage, an ESAM module and a 485 interface;
the clock circuit, the storage, the ESAM module and the 485 interface are respectively connected with the PLC control module.
10. The 10 kV distribution automation tie switch sub-metering device of claim 1,
the three-phase three-wire electric energy meter comprises a metering chip, a voltage sampling circuit and a current transformer.
CN202111401756.3A 2021-11-19 2021-11-19 10 kilovolt distribution automation interconnection switch auxiliary metering device Pending CN114157024A (en)

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CN202111401756.3A CN114157024A (en) 2021-11-19 2021-11-19 10 kilovolt distribution automation interconnection switch auxiliary metering device

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Application Number Priority Date Filing Date Title
CN202111401756.3A CN114157024A (en) 2021-11-19 2021-11-19 10 kilovolt distribution automation interconnection switch auxiliary metering device

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CN114157024A true CN114157024A (en) 2022-03-08

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204129114U (en) * 2014-09-16 2015-01-28 杭州西力电能表制造有限公司 Transformer electric energy meter
CN105280430A (en) * 2015-10-20 2016-01-27 北京华电瑞通电力工程技术有限公司 10kV solar intelligent pole-mounted vacuum circuit breaker
CN105974195A (en) * 2016-06-29 2016-09-28 杭州华春科技有限公司 Bypass electric quantity metering device and metering method thereof
CN107144712A (en) * 2017-05-17 2017-09-08 国网天津市电力公司 A kind of intelligent wiring box
CN107656104A (en) * 2017-10-31 2018-02-02 广东电网有限责任公司电力科学研究院 A kind of intelligent wiring box and critical point electric energy metering secondary state monitoring method
CN109217468A (en) * 2018-08-30 2019-01-15 武汉精伦电气有限公司 A kind of intelligent terminal box and electricity consumption observing and controlling and auditing system
CN210835064U (en) * 2019-07-01 2020-06-23 许昌许继低压电器有限公司 Metering type intelligent circuit breaker based on Internet of things
CN112269055A (en) * 2020-11-25 2021-01-26 程昱舒 Intelligent junction box for electric energy metering
CN113345292A (en) * 2021-06-28 2021-09-03 广东电网有限责任公司 Electric energy metering training device and control method thereof

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204129114U (en) * 2014-09-16 2015-01-28 杭州西力电能表制造有限公司 Transformer electric energy meter
CN105280430A (en) * 2015-10-20 2016-01-27 北京华电瑞通电力工程技术有限公司 10kV solar intelligent pole-mounted vacuum circuit breaker
CN105974195A (en) * 2016-06-29 2016-09-28 杭州华春科技有限公司 Bypass electric quantity metering device and metering method thereof
CN107144712A (en) * 2017-05-17 2017-09-08 国网天津市电力公司 A kind of intelligent wiring box
CN107656104A (en) * 2017-10-31 2018-02-02 广东电网有限责任公司电力科学研究院 A kind of intelligent wiring box and critical point electric energy metering secondary state monitoring method
CN109217468A (en) * 2018-08-30 2019-01-15 武汉精伦电气有限公司 A kind of intelligent terminal box and electricity consumption observing and controlling and auditing system
CN210835064U (en) * 2019-07-01 2020-06-23 许昌许继低压电器有限公司 Metering type intelligent circuit breaker based on Internet of things
CN112269055A (en) * 2020-11-25 2021-01-26 程昱舒 Intelligent junction box for electric energy metering
CN113345292A (en) * 2021-06-28 2021-09-03 广东电网有限责任公司 Electric energy metering training device and control method thereof

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