CN112769227A - Intelligent distribution transformer protection measurement and control device based on 4G communication technology - Google Patents
Intelligent distribution transformer protection measurement and control device based on 4G communication technology Download PDFInfo
- Publication number
- CN112769227A CN112769227A CN201911069004.4A CN201911069004A CN112769227A CN 112769227 A CN112769227 A CN 112769227A CN 201911069004 A CN201911069004 A CN 201911069004A CN 112769227 A CN112769227 A CN 112769227A
- Authority
- CN
- China
- Prior art keywords
- plug
- distribution transformer
- control device
- data
- measurement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a distribution transformer intelligent protection measurement and control device based on a 4G communication technology, which comprises device hardware; the hardware of the device comprises a power supply plug-in which a power supply is provided for the measurement and control device, a CPU plug-in which the complex data processing of the measurement and control device is completed and the field programming function is realized, an alternating current sampling plug-in which the operation analog quantity data acquisition and the preprocessing of the distribution transformer are realized, an input and output plug-in which the input and output of the input and output signal acquisition and output drive are realized, and a DTU plug-in which the data of the CPU plug-in and the input and output plug-in are received and the data are transmitted to a server or a power private network through a network. The invention has a plurality of data acquisition modes and communication interfaces; the intelligent distribution transformer can be used as a local centralized control center of the distribution transformer, each functional module can be used in a plug-and-play mode, the equipment investment quantity is reduced, the system structure is optimized, the whole automatic system can be conveniently and rapidly accessed, the equipment utilization rate is improved, and the system maintenance time is shortened.
Description
Technical Field
The invention relates to the technical field of intelligent protection of distribution transformers, in particular to an intelligent protection measurement and control device of a distribution transformer based on a 4G communication technology.
Background
With the increase of national economic development and the increase of the living demands of people, the urban and rural loads in China are increased day by day, the distribution equipment is increased continuously, the distribution network scale is enlarged continuously, and the requirements on the power supply reliability and the power quality are higher and higher. Correspondingly, with the development of electronics, computers, communication and network technologies, the power distribution network of the power system is continuously transformed, and various monitoring acquisition and protection devices are applied to each power supply node of the power system to improve the automation level of the power system. At present, the automation of a power distribution system is realized at several positions of dispatching, transformer substations, user side load management and office work, and the remaining intermediate links, namely the power distribution system of 10KV and below, are weak links in the whole link.
The distribution network is a power supply network formed by taking a distribution transformer as a center, so that the operation data of the distribution transformer is an important component of the basic data of the whole distribution network, and the construction of a distribution transformer data acquisition and monitoring system becomes one of important components of a distribution automation system. The running state of the regulating transformer is monitored by collecting various parameters of the distribution transformer in real time and analyzing the collected data, and meanwhile, the power supply quality is improved. Because the distribution transformer has the characteristics of scattered distribution, numerous quantity and complex geographic environment, the remote data acquisition and monitoring are realized, the requirements on real-time performance and reliability are met, the cost is saved, and the system is economical and reasonable, so that the functions of the measurement and control device and the adopted communication mode become more important.
However, the functions of the devices adopted for the local monitoring of the distribution transformer are more dispersed: the protection device, the metering device and the electric energy quality adjusting device are independent devices, and communication interfaces adopted by device communication are wired connection modes such as a traditional RS485 interface, a network port and the like, so that the structure is complex when a system is constructed; the communication modes adopted between the on-site device and the monitoring system are power carrier, microwave communication, serial bus, optical fiber and the like: the poor reliability of communication caused by the influence of the environment on the power line carrier wave is gradually eliminated; the microwave communication investment is greatly limited to the insufficient resource distributability of multipoint communication; the serial port bus is connected by a cable wire and is generally only suitable for the application of occasions with relatively concentrated equipment, but the transmission distance, the data capacity and the transmission response are limited and cannot meet the real-time requirement; the advantages of optical fiber communication are large capacity, strong anti-electromagnetic interference capability, but high one-time investment and maintenance cost for laying optical fiber and purchasing optical transceiver, and generally only used as the communication mode of the main line in the power distribution system. Therefore, according to the characteristics that the power supply and distribution equipment in the power distribution network is numerous and widely distributed, a proper communication mode is selected between the equipment data acquisition terminal and the monitoring central station, and the key for comprehensively realizing power distribution management and monitoring is realized.
Disclosure of Invention
The invention aims to provide a distribution transformer intelligent protection measurement and control device based on a 4G communication technology aiming at the defects of the prior art, and overcomes the defects that the functions of the device are dispersed, the structure of a constructed system is complex, the transmission distance, the data capacity and the transmission response are limited, and the real-time requirement cannot be met in the prior art.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a distribution transformer intelligent protection measurement and control device based on 4G communication technology comprises device hardware; the hardware of the device comprises a power supply plug-in which a power supply is provided for the measurement and control device, a CPU plug-in which the complex data processing of the measurement and control device is completed and the field programming function is realized, an alternating current sampling plug-in which the operation analog quantity data acquisition and the preprocessing of the distribution transformer are realized, an input and output plug-in which the input and output of the input and output signal acquisition and output drive are realized, and a DTU plug-in which the data of the CPU plug-in and the input and output plug-in are received and the data are transmitted to a server or a power private network through a network.
Furthermore, the power supply plug-in is a switch power supply module.
Furthermore, the CPU plug-in is composed of an ARM series chip, a DSP series chip and a programmable logic device CPLD.
Furthermore, the alternating current sampling plug-in is composed of a mutual inductor and a processing circuit.
Further, the open-in and open-out plug-in is composed of a CPU drive circuit and a switching value drive circuit.
Furthermore, the DTU plug-in unit is composed of a 32-bit intelligent single chip microcomputer, a 4G communication hardware module interface, a SIM card seat and an M2M antenna.
Further, the DTU plug-in transmits data to a server or a private power network through a network transparent transmission mode or a protocol transparent transmission mode.
Furthermore, the distribution transformer intelligent protection measurement and control device also comprises device software; the software of the device comprises a basic operation program which is installed in an ARM series chip and is used for realizing basic operation work, a data processing program which is installed in a DSP series chip and is used for forming various analog data algorithms into algorithm packages, a logic control program which is installed in a programmable logic device CPLD and is used for realizing field online programming or remote offline programming, and a communication application program which is used for realizing a communication function.
Further, the communication application program comprises an internal CAN communication program installed in an ARM series chip, a CPU plug-in communication management program installed in the ARM series chip, and a DTU data transparent transmission program installed in a 32-bit intelligent single chip.
Compared with the prior art, the invention has the advantages and positive effects that:
1. the data acquisition terminal and the output transmission module are integrated into an integrated terminal device in a modular form based on an embedded ARM system, and the integrated terminal device is provided with a plurality of data acquisition modes and communication interfaces; the intelligent power distribution transformer can be used as a local centralized control center of the power distribution transformer, each functional module can be used in a plug-and-play mode, the equipment investment amount is reduced, the system structure is optimized, the whole automatic system can be conveniently and rapidly accessed, the equipment utilization rate is improved, and the system maintenance time is reduced;
2. in order to adapt to various use environments and requirements, the software of the invention adopts a programmable technology, the device software comprises a plurality of developed data processing algorithms and logic flow applications, an interface is reserved for increasing new applications, and each functional module realizes the data processing of the functional module and the logic control protection function by calling a corresponding application program;
3. the DTU plug-in integrates the plug-in form with the acquisition terminal, is plug and play, does not need external additional wiring and power supply, and can directly read the acquired data and protect the data to select a proper transparent transmission mode to transmit the data to the monitoring center;
4. the DTU plug-in has a network interface and other standard serial ports, is convenient to access other local digital equipment of the distribution transformer to carry out data transmission, does not need to additionally increase centralized monitoring equipment, effectively optimizes the system structure and makes great contribution to the automatic operation of the distribution network.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a rear view structural diagram of the present invention;
FIG. 3 is a functional diagram of the present invention as an in-place workstation;
FIG. 4 is a functional diagram of the present invention as a centralized control center.
Detailed Description
The present technology is described in further detail below with reference to the attached drawings and the detailed description.
As shown in fig. 1 and fig. 2, the whole hardware of the intelligent protection and measurement and control device of the distribution transformer is mainly designed into a modular plug-in structure based on an ARM system of an embedded system, and is divided into a power plug-in, a CPU plug-in, an ac sampling plug-in, and an input plug-in and an output plug-in according to the functions completed by the device: the power supply plug-in adopts a switching power supply module to realize various and wide voltage source input and stable voltage output to provide power for the device; the AC sampling plug-in unit adopts a small-sized precise mutual inductor and a processing circuit to complete the acquisition and the pretreatment of variable operation analog quantity data of the distribution transformer, and transmits the acquired data to the CPU plug-in unit through an internal data bus to perform data conversion and complex operation processing; the open-in and open-out plug-in adopts an independent CPU drive circuit and an independent switching value drive circuit to realize open-in signal acquisition and open-out drive, and simultaneously transmits signals to the CPU plug-in through a CAN bus in the device and receives a protection instruction and a control instruction of the CPU plug-in to control the operation of the distribution transformer; the CPU plug-in adopts ARM series chip, DSP series chip and programmable logic device CPLD as the main CPU of the device, the characteristic that the processor of ARM series CPU can be changed by software is utilized to realize the hardware management of the device, the high-speed data transmission and the arithmetic operation instruction set of DSP application, and the complex data processing of the device is completed by combining the high-speed and strong data processing capability of the DSP series chip, and the programmable logic device CPLD can utilize the programmable function of ladder diagram editing logic to realize the field programming function to adapt to the requirement of the operation condition of the distribution transformer; the DTU plug-in adopts devices comprising a 32-bit intelligent single chip microcomputer, a 4G communication hardware module interface, a SIM card seat, an M2M antenna and the like, supports 5-mode 13-frequency, receives data of the CPU plug-in and data of the plug-in by opening and closing through a CAN bus in the device, and transmits the data to a designated server or a power private network through a public communication network in a network transparent transmission mode or a protocol transparent transmission mode and the like.
The device software comprises a basic layer operation program, a data processing program, a logic control program and a communication application program, wherein the basic layer operation program is installed in an ARM series chip, the data processing program is installed in a DSP series chip, the logic control program is installed in a programmable logic device CPLD, and other programs except the basic layer operation program are programmable software, wherein the data processing program forms various analog data algorithms into algorithm packages for calling when the programmable program data are processed, and meanwhile, a software interface is reserved to facilitate the addition of a new algorithm application package; the logic control program adopts a ladder diagram programming mode, and the protection logic and the control logic can be subjected to on-site on-line programming or remote off-line programming or the existing logic program is downloaded from a website of a device manufacturer through special computer programming software; the communication program comprises a CAN communication program inside the device, a communication management program of a CPU plug-in and a DTU data transparent transmission program, the CAN communication program and the communication management program of the CPU plug-in are installed in an ARM series chip, the DTU data transparent transmission program is installed in a 32-bit intelligent single chip microcomputer, the CAN in figure 1 represents a CAN bus, and RS485 and RS232 are both communication interfaces.
The invention can be used as a local centralized control center mode (as shown in figure 3), can realize real-time acquisition of operation parameters and fault information of voltage, current, zero-sequence current, equipment state and the like of the distribution transformer, can realize real-time monitoring of distribution network equipment, can also communicate with other monitoring equipment of the distribution transformer, such as metering, reactive compensation and the like, through a 4G communication hardware module interface of a DTU plug-in unit, and can transmit data thereof to a power monitoring private network or a designated communication server; and as a stand-alone station mode, perform the entire monitoring function of the entire distribution transformer (as shown in fig. 4).
The invention has the following beneficial effects:
1. the data acquisition terminal and the output transmission module are integrated into an integrated terminal device in a modular form based on an embedded ARM system, and the integrated terminal device is provided with a plurality of data acquisition modes and communication interfaces; the intelligent power distribution transformer can be used as a local centralized control center of the power distribution transformer, each functional module can be used in a plug-and-play mode, the equipment investment amount is reduced, the system structure is optimized, the whole automatic system can be conveniently and rapidly accessed, the equipment utilization rate is improved, and the system maintenance time is reduced;
2. in order to adapt to various use environments and requirements, the software of the invention adopts a programmable technology, the device software comprises a plurality of developed data processing algorithms and logic flow applications, an interface is reserved for increasing new applications, and each functional module realizes the data processing of the functional module and the logic control protection function by calling a corresponding application program;
3. the DTU plug-in integrates the plug-in form with the acquisition terminal, is plug and play, does not need external additional wiring and power supply, and can directly read the acquired data and protect the data to select a proper transparent transmission mode to transmit the data to the monitoring center;
4. the DTU plug-in has a network interface and other standard serial ports, is convenient to access other local digital equipment of the distribution transformer to carry out data transmission, does not need to additionally increase centralized monitoring equipment, effectively optimizes the system structure and makes great contribution to the automatic operation of the distribution network.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The utility model provides a join in marriage and become intelligent protection measurement and control device based on 4G communication technology which characterized in that: the distribution transformer intelligent protection measurement and control device comprises device hardware; the hardware of the device comprises a power supply plug-in which a power supply is provided for the measurement and control device, a CPU plug-in which the complex data processing of the measurement and control device is completed and the field programming function is realized, an alternating current sampling plug-in which the operation analog quantity data acquisition and the preprocessing of the distribution transformer are realized, an input and output plug-in which the input and output of the input and output signal acquisition and output drive are realized, and a DTU plug-in which the data of the CPU plug-in and the input and output plug-in are received and the data are transmitted to a server or a power private network through a network.
2. The intelligent protection, measurement and control device for distribution transformer based on 4G communication technology according to claim 1, characterized in that: the power supply plug-in is a switch power supply module.
3. The intelligent protection, measurement and control device for distribution transformer based on 4G communication technology according to claim 2, characterized in that: the CPU plug-in is composed of an ARM series chip, a DSP series chip and a programmable logic device CPLD.
4. The distribution transformer intelligent protection measurement and control device based on the 4G communication technology as claimed in claim 3, wherein: the alternating current sampling plug-in is composed of a mutual inductor and a processing circuit.
5. The distribution transformer intelligent protection measurement and control device based on the 4G communication technology is characterized in that: the input/output plug-in is composed of a CPU drive circuit and a switching value drive circuit.
6. The distribution transformer intelligent protection measurement and control device based on the 4G communication technology according to claim 5, characterized in that: the DTU plug-in unit consists of a 32-bit intelligent single chip microcomputer, a 4G communication hardware module interface, a SIM card seat and an M2M antenna.
7. The distribution transformer intelligent protection measurement and control device based on the 4G communication technology as claimed in claim 6, wherein: and the DTU plug-in transmits data to a server or a power private network through a network transparent transmission mode or a protocol transparent transmission mode.
8. The distribution transformer intelligent protection measurement and control device based on the 4G communication technology as claimed in claim 7, wherein: the distribution transformer intelligent protection measurement and control device also comprises device software; the software of the device comprises a basic operation program which is installed in an ARM series chip and is used for realizing basic operation work, a data processing program which is installed in a DSP series chip and is used for forming various analog data algorithms into algorithm packages, a logic control program which is installed in a programmable logic device CPLD and is used for realizing field online programming or remote offline programming, and a communication application program which is used for realizing a communication function.
9. The distribution transformer intelligent protection measurement and control device based on the 4G communication technology according to claim 8, characterized in that: the communication application program comprises an internal CAN communication program installed in an ARM series chip, a CPU plug-in communication management program installed in the ARM series chip and a DTU data transparent transmission program installed in a 32-bit intelligent single chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911069004.4A CN112769227A (en) | 2019-11-05 | 2019-11-05 | Intelligent distribution transformer protection measurement and control device based on 4G communication technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911069004.4A CN112769227A (en) | 2019-11-05 | 2019-11-05 | Intelligent distribution transformer protection measurement and control device based on 4G communication technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112769227A true CN112769227A (en) | 2021-05-07 |
Family
ID=75692503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911069004.4A Pending CN112769227A (en) | 2019-11-05 | 2019-11-05 | Intelligent distribution transformer protection measurement and control device based on 4G communication technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112769227A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114006804A (en) * | 2021-11-18 | 2022-02-01 | 贵州电网有限责任公司 | Power distribution edge server system based on centralized protection control system architecture |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010014833A1 (en) * | 2000-01-26 | 2001-08-16 | Schneider Electric Industries Sa | Programmable logic controller provided with communication functions in a client-server architecture |
| CN104022572A (en) * | 2014-06-04 | 2014-09-03 | 上海电气集团股份有限公司 | Measuring and control device with network communication function |
| CN205265349U (en) * | 2015-10-08 | 2016-05-25 | 北京科诺伟业科技股份有限公司 | Little electric wire netting intelligence measurement and control device |
| CN109510236A (en) * | 2018-11-15 | 2019-03-22 | 南京德睿能源研究院有限公司 | A kind of intelligent micro-grid controller and control method integrating control monitoring for protection |
-
2019
- 2019-11-05 CN CN201911069004.4A patent/CN112769227A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010014833A1 (en) * | 2000-01-26 | 2001-08-16 | Schneider Electric Industries Sa | Programmable logic controller provided with communication functions in a client-server architecture |
| CN104022572A (en) * | 2014-06-04 | 2014-09-03 | 上海电气集团股份有限公司 | Measuring and control device with network communication function |
| CN205265349U (en) * | 2015-10-08 | 2016-05-25 | 北京科诺伟业科技股份有限公司 | Little electric wire netting intelligence measurement and control device |
| CN109510236A (en) * | 2018-11-15 | 2019-03-22 | 南京德睿能源研究院有限公司 | A kind of intelligent micro-grid controller and control method integrating control monitoring for protection |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114006804A (en) * | 2021-11-18 | 2022-02-01 | 贵州电网有限责任公司 | Power distribution edge server system based on centralized protection control system architecture |
| CN114006804B (en) * | 2021-11-18 | 2024-04-26 | 贵州电网有限责任公司 | Distribution edge server system based on centralized protection control system architecture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105471109B (en) | Towards the Intelligent electricity utilization management system and its management method of family wind-solar hybrid power station | |
| CN105162250B (en) | A kind of power consumer efficiency service cloud terminal and efficiency service management system | |
| CN103323686B (en) | A kind of intelligent grid power quality analyzer | |
| CN106933214A (en) | Intelligent home control system and method based on intelligent electric meter terminal | |
| CN202351676U (en) | Energy consumption metering and production safety monitoring system | |
| CN112769227A (en) | Intelligent distribution transformer protection measurement and control device based on 4G communication technology | |
| CN205283154U (en) | Protection control of distributing type photovoltaic power generation and communication device | |
| CN102130505A (en) | High-voltage switch controller with metering function | |
| CN213715726U (en) | Gate intelligent protection measurement and control device for remote areas | |
| CN209927942U (en) | Intelligent online monitoring instrument for lightning arrester of power transmission line based on wireless communication | |
| CN201113374Y (en) | Electrical power system microcomputer protecting measuring and controlling device based on double CPU structure | |
| CN102790427A (en) | Electric monitoring and management system for intelligent distribution network | |
| CN201819954U (en) | 0.5-level single-phase electronic energy meter | |
| CN109861391A (en) | A kind of intelligent low-pressure comprehensive distribution box management system based on Internet of Things | |
| CN202524168U (en) | Power quality data monitoring device | |
| CN210955469U (en) | Novel wireless self-organizing meter reading control device for water-gas-electricity three-meter | |
| CN202009265U (en) | High-voltage switch controller with metering function | |
| CN109149637A (en) | Open monitoring management grid-connected system and its monitoring management method | |
| CN210605701U (en) | Safe energy efficiency acquisition terminal | |
| CN208539935U (en) | A kind of electric quantity metering and monitoring device of energy-storage battery | |
| CN209170051U (en) | A kind of intelligent low-pressure comprehensive distribution box management system based on Internet of Things | |
| CN102419386A (en) | 0.5-grade electronic type single-phase watt-hour meter | |
| CN205581188U (en) | Be total to case generating line electrical parameter on -line monitoring device | |
| CN205901448U (en) | Intelligent measurement and control terminal is synthesized to new forms of energy transformer | |
| CN203840054U (en) | Object-oriented distribution terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210507 |