WO2017152312A1 - New type of power-grid measurement and control system using power carrier technology - Google Patents

New type of power-grid measurement and control system using power carrier technology Download PDF

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Publication number
WO2017152312A1
WO2017152312A1 PCT/CN2016/075724 CN2016075724W WO2017152312A1 WO 2017152312 A1 WO2017152312 A1 WO 2017152312A1 CN 2016075724 W CN2016075724 W CN 2016075724W WO 2017152312 A1 WO2017152312 A1 WO 2017152312A1
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Prior art keywords
power
carrier
control system
grid measurement
power grid
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PCT/CN2016/075724
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French (fr)
Chinese (zh)
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马骏
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马骏
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Priority to PCT/CN2016/075724 priority Critical patent/WO2017152312A1/en
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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
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • 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

Definitions

  • the invention relates to a novel power grid measurement and control system using power carrier technology.
  • the power parameters of the area need to be monitored in real time, but because the area is large, data transmission through the network line is required, which increases the cost of the network wiring, and for too many network lines. The ability to interfere with the signal is reduced, which reduces the reliability of the measurement and control system.
  • the reliability of the carrier signal transmission is reduced due to the lack of isolation during the transmission of the carrier signal, and the stability and reliability of the carrier signal transmission are reduced due to the lack of filtering effect on the transmission signal.
  • the technical problem to be solved by the present invention is to provide a new type of power carrier technology with high reliability, high stability and multiple protections in order to overcome the disadvantages of high wiring cost, poor reliability and poor stability of carrier transmission signals in the prior art.
  • Grid measurement and control system is to provide a new type of power carrier technology with high reliability, high stability and multiple protections in order to overcome the disadvantages of high wiring cost, poor reliability and poor stability of carrier transmission signals in the prior art.
  • a novel power grid measurement and control system using power carrier technology comprising a central server, an electronic carrier generator and a plurality of power grid measurement and control instruments, wherein the central server is electrically connected with an electronic carrier generator There is an optical fiber, and the electronic carrier generator is electrically connected to the power grid measuring and controlling instrument;
  • a carrier transmitting module is disposed in the electronic carrier generator, a carrier receiving module is disposed in the power grid measuring and controlling instrument, and the carrier transmitting module is connected to a carrier receiving module, where the carrier transmitting module includes a wave transmitting circuit, the carrier transmitting circuit comprising a resistor, a triode, a transformer, an inductor, a bidirectional diode, a first capacitor, a second capacitor and a third capacitor, wherein an emitter of the triode is grounded, and a base of the triode is connected to a resistor
  • the collector of the triode is connected to one end of an input loop of the transformer, the collector of the triode is connected to the other end of the input loop of the transformer through a first capacitor, and the second capacitor is connected in parallel with the first capacitor, the transformer
  • the center of the input circuit is externally connected to a 5V DC voltage source, and one end of the output circuit of the transformer is connected to the other end of the output circuit of the transformer through a series circuit composed of an inductor,
  • the reliability of the signal transmission of the system is improved by utilizing a stable transmission signal of the single mode optical fiber, and the optical fiber is a single mode optical fiber.
  • the shielding wire is shielded from the interference signal, and the anti-interference ability of the system is improved, and the connecting wire is a shielded wire.
  • the power grid measurement and control instrument includes a housing, a display interface disposed on the housing, a control button, a signal connection terminal, and a power connection terminal.
  • the power grid measurement and control instrument is provided with a central control device, and the central control device adopts a chip model of GD32F103RBT6, and the display interface, control buttons, signal terminals and power supply wiring The terminals are electrically connected to the central control unit.
  • the display interface is a liquid crystal display.
  • the utility model has the advantages of high sensitivity of the touch button, and further improves the practicability of the power grid measurement and control instrument, wherein the control button is a touch button.
  • the triode is an NPN triode.
  • the invention has the beneficial effects that the new power grid measurement and control system adopting the power carrier technology realizes the signal transmission of the system through the power carrier through the electronic carrier generator, thereby reducing the wiring cost;
  • the transformer can not only couple the carrier signal, but also isolate the communication circuit from the power frequency AC power, which improves the reliability of the system.
  • the interference signal composed of the third capacitor and the inductor effectively filters the interference signal.
  • the stability of the signal transmission is improved, and the function of the surge protection is ensured by the bidirectional diode, thereby effectively preventing the back circuit from being broken down by the high voltage and improving the reliability of the circuit.
  • FIG. 1 is a schematic structural view of a novel power grid measurement and control system using power carrier technology according to the present invention
  • FIG. 2 is a schematic structural diagram of a power grid measurement and control instrument of a novel power grid measurement and control system using power carrier technology according to the present invention
  • FIG. 3 is a circuit schematic diagram of a carrier transmitting circuit of a novel power grid measurement and control system using power carrier technology according to the present invention
  • a novel power grid measurement and control system using power carrier technology includes a central server 1, an electronic carrier generator 2, and a plurality of grid measurement and control instruments 5, wherein the central server 1 and the electronic carrier generator 2 are powered. Connected with an optical fiber 3, the electronic carrier generator 2 is electrically connected to the grid measuring and controlling instrument 5 with a connecting line 4;
  • a carrier transmitting module is disposed in the electronic carrier generator 2, a carrier receiving module is disposed in the power grid measuring and controlling device 5, the carrier transmitting module is connected to a carrier receiving module, and the carrier transmitting module includes a carrier transmitting circuit,
  • the carrier transmitting circuit includes a resistor R1, a transistor Q1, a transformer T1, an inductor L1, a bidirectional diode TVS, a first capacitor C1, a second capacitor C2, and a third capacitor C3.
  • the emitter of the transistor Q1 is grounded, and the base of the transistor Q1 The pole is connected to the resistor R1, the collector of the transistor Q1 is connected to one end of the input loop of the transformer T1, and the collector of the transistor Q1 is connected to the other end of the input loop of the transformer T1 through the first capacitor C1, the second The capacitor C2 is connected in parallel with the first capacitor C1.
  • the center of the input loop of the transformer T1 is externally connected with a 5V DC voltage source.
  • One end of the output loop of the transformer T1 is connected through a series circuit comprising an inductor L1, a third capacitor C3 and a bidirectional diode TVS. Connected to the other end of the output loop of transformer T1.
  • the reliability of the signal transmission of the system is improved by utilizing a stable transmission signal of the single mode optical fiber, and the optical fiber 3 is a single mode optical fiber.
  • the shielded wire is shielded from the interference signal to improve the anti-interference ability of the system, and the connecting wire 4 is a shielded wire.
  • the power grid measuring and controlling instrument 5 includes a housing 10, a display interface 6 provided on the housing 10, a control button 7, a signal terminal 8 and a power terminal 9.
  • the power grid measuring and controlling instrument 5 is provided with a central control device, the chip type of the central control device is GD32F103RBT6, the display interface 6, the control button 7, the signal wiring Both the terminal 8 and the power supply terminal 9 are electrically connected to the central control unit.
  • the chip type of the central control device is GD32F103RBT6, the display interface 6, the control button 7, the signal wiring Both the terminal 8 and the power supply terminal 9 are electrically connected to the central control unit.
  • the display interface 6 is a liquid crystal display.
  • the utility of the touch control button 5 is further improved by the high sensitivity of the touch button, and the control button 7 is a touch button.
  • the transistor Q1 is an NPN transistor.
  • the new power grid measurement and control system adopting power carrier technology: real-time measurement of grid power parameters of the region through each grid measurement and control instrument 5, and then signal transmission through the connection line 4 and the electronic carrier generator 2 in the form of a power carrier, and then through The optical fiber 3 transmits the data to the central server 1, thereby realizing real-time monitoring of the grid power parameters of the area.
  • the carrier transmitting module is provided in the electronic carrier generator 2, and the transformer T1 of the carrier transmitting circuit in the carrier transmitting module can not only couple the carrier signal, but also can communicate the communication circuit with Power frequency AC power is isolated to improve the reliability of the system, and the center point of the transformer T1 is connected with a 5V DC voltage power supply to reduce the first capacitor C1, the second capacitor C2 and the input terminal of the transformer T1 due to signal access.
  • the Q value of the parallel resonant network is reduced or even stopped, which further improves the reliability of the system.
  • the bidirectional diode TVS is added to the circuit, which is a transient suppression diode, which acts as a surge protection, effectively avoiding the high voltage of the latter circuit. Breakdown improves the reliability of the circuit. Moreover, the resonant network composed of the third capacitor C3 and the inductor L1 effectively filters the interference signal, thereby improving the stability of the signal transmission.
  • the new power grid measurement and control system realizes the signal transmission of the system through the power carrier mode through the electronic carrier generator 2, thereby reducing the wiring cost; at the same time, not only the carrier signal can be coupled through the transformer T1.
  • the communication circuit can be isolated from the power frequency AC power, which improves the reliability of the system.
  • the resonant network composed of the third capacitor C3 and the inductor L1 effectively filters the interference signal, thereby improving the stability of the signal transmission.
  • the bidirectional diode TVS it acts as a surge protection, effectively avoiding the high voltage breakdown of the latter circuit and improving the reliability of the circuit.

Abstract

Provided is a new type of power-grid measurement and control system using power carrier technology, comprising a central server (1), an electronic carrier generator (2), and several power-grid measurement and control gauges (5); said central server (1) and electronic carrier generator (2) are electrically connected to an optical fiber (3); said electronic carrier generator (2) and power-grid measurement and control gauges (5) are electrically connected to a connection cable (4); by means of the electronic carrier generator (2), the new type of power-grid measurement and control system using power carrier technology implements a system performing signal transmission by means of a power carrier, thus reducing wiring costs; at the same time, it is possible, by means of a transformer (T1), not only to couple a carrier signal, but also to isolate the communication circuit from the operating-frequency AC strong electricity, improving the reliability of the system; in addition, by means of a resonance network consisting of a third capacitor (C3) and an inductor (L1), an interfering signal is effectively filtered, improving the stability of signal transmission; a surge protection function is achieved by means of a bidirectional diode (TVS), effectively preventing high-voltage breakdown of a back circuit and improving the reliability of the circuit.

Description

一种采用电力载波技术的新型电网测控系统A new type of power grid measurement and control system using power carrier technology 技术领域Technical field
本发明涉及一种采用电力载波技术的新型电网测控系统。The invention relates to a novel power grid measurement and control system using power carrier technology.
背景技术Background technique
随着现代电力电子技术的不断发展，人们对于电力电子技术的运用也越来越多，无论是工作还是生活中，其给予我们的帮助也显而易见。With the continuous development of modern power electronics technology, people are increasingly using power electronics technology. Whether it is work or life, its help is obvious.
在现代的电力网测控系统中，需要对该区域的电力参数进行实时监控，但是由于区域较大，就需要通过网络线进行数据传输，这样就增加了网络布线的成本，而且对于过多的网络线对于信号的干扰能力降低，降低了测控系统的可靠性。In the modern power network measurement and control system, the power parameters of the area need to be monitored in real time, but because the area is large, data transmission through the network line is required, which increases the cost of the network wiring, and for too many network lines. The ability to interfere with the signal is reduced, which reduces the reliability of the measurement and control system.
现有技术中，针对载波信号在发射过程中，由于缺少隔离作用，导致载波信号传输的可靠性降低，而且由于对传输信号缺少过滤作用，载波信号传输的稳定性和可靠性也就降低了。In the prior art, the reliability of the carrier signal transmission is reduced due to the lack of isolation during the transmission of the carrier signal, and the stability and reliability of the carrier signal transmission are reduced due to the lack of filtering effect on the transmission signal.
发明内容Summary of the invention
本发明要解决的技术问题是：为了克服现有技术布线成本高、载波传输信号可靠性和稳定性差的不足，提供一种可靠性、稳定性高且具有多种保护的采用电力载波技术的新型电网测控系统。The technical problem to be solved by the present invention is to provide a new type of power carrier technology with high reliability, high stability and multiple protections in order to overcome the disadvantages of high wiring cost, poor reliability and poor stability of carrier transmission signals in the prior art. Grid measurement and control system.
本发明解决其技术问题所采用的技术方案是：一种采用电力载波技术的新型电网测控系统，包括中央服务器、电子载波发生器和若干电网测控仪表，所述中央服务器与电子载波发生器电连接有光纤，所述电子载波发生器与电网测控仪表电连接有连接线；The technical solution adopted by the present invention to solve the technical problem thereof is: a novel power grid measurement and control system using power carrier technology, comprising a central server, an electronic carrier generator and a plurality of power grid measurement and control instruments, wherein the central server is electrically connected with an electronic carrier generator There is an optical fiber, and the electronic carrier generator is electrically connected to the power grid measuring and controlling instrument;
所述电子载波发生器中设有载波发射模块，所述电网测控仪表中设有载波接收模块，所述载波发射模块与载波接收模块连接，所述载波发射模块包括载 波发射电路，所述载波发射电路包括电阻、三极管、变压器、电感、双向二极管、第一电容、第二电容和第三电容，所述三极管的发射极接地，所述三极管的基极与电阻连接，所述三极管的集电极与变压器的输入回路的一端连接，所述三极管的集电极通过第一电容与变压器的输入回路的另一端连接，所述第二电容与第一电容并联，所述变压器的输入回路的中心点外接5V直流电压电源，所述变压器的输出回路的一端通过电感、第三电容和双向二极管组成的串联电路与变压器的输出回路的另一端连接。a carrier transmitting module is disposed in the electronic carrier generator, a carrier receiving module is disposed in the power grid measuring and controlling instrument, and the carrier transmitting module is connected to a carrier receiving module, where the carrier transmitting module includes a wave transmitting circuit, the carrier transmitting circuit comprising a resistor, a triode, a transformer, an inductor, a bidirectional diode, a first capacitor, a second capacitor and a third capacitor, wherein an emitter of the triode is grounded, and a base of the triode is connected to a resistor The collector of the triode is connected to one end of an input loop of the transformer, the collector of the triode is connected to the other end of the input loop of the transformer through a first capacitor, and the second capacitor is connected in parallel with the first capacitor, the transformer The center of the input circuit is externally connected to a 5V DC voltage source, and one end of the output circuit of the transformer is connected to the other end of the output circuit of the transformer through a series circuit composed of an inductor, a third capacitor and a bidirectional diode.
作为优选，利用单模光纤通讯信号传输稳定的特点，提高了系统信号传输的可靠性，所述光纤为单模光纤。Preferably, the reliability of the signal transmission of the system is improved by utilizing a stable transmission signal of the single mode optical fiber, and the optical fiber is a single mode optical fiber.
作为优选，利用屏蔽导线对干扰信号有屏蔽的特点，提高了系统的抗干扰能力，所述连接线为屏蔽导线。Preferably, the shielding wire is shielded from the interference signal, and the anti-interference ability of the system is improved, and the connecting wire is a shielded wire.
作为优选，为了提高电网测控仪表的实用性，所述电网测控仪表包括壳体、设置在壳体上的显示界面、控制按键、信号接线端子和电源接线端子。Preferably, in order to improve the practicability of the power grid measurement and control instrument, the power grid measurement and control instrument includes a housing, a display interface disposed on the housing, a control button, a signal connection terminal, and a power connection terminal.
作为优选，为了提高电网测控仪表的智能化，所述电网测控仪表中设有中央控制装置，所述中央控制装置采用的芯片型号为GD32F103RBT6，所述显示界面、控制按键、信号接线端子和电源接线端子均与中央控制装置电连接。Preferably, in order to improve the intelligence of the power grid measurement and control instrument, the power grid measurement and control instrument is provided with a central control device, and the central control device adopts a chip model of GD32F103RBT6, and the display interface, control buttons, signal terminals and power supply wiring The terminals are electrically connected to the central control unit.
作为优选，为了进一步提高电网测控仪表的实用性，所述显示界面为液晶显示屏。Preferably, in order to further improve the practicability of the power grid measurement and control instrument, the display interface is a liquid crystal display.
作为优选，利用轻触按键灵敏度高的特点，进一步提高电网测控仪表的实用性，所述控制按键为轻触按键。Preferably, the utility model has the advantages of high sensitivity of the touch button, and further improves the practicability of the power grid measurement and control instrument, wherein the control button is a touch button.
作为优选，所述三极管为NPN三极管。Preferably, the triode is an NPN triode.
本发明的有益效果是，该采用电力载波技术的新型电网测控系统通过电子载波发生器，实现了系统通过电力载波的方式进行信号传输，降低了布线成本； 同时通过变压器不仅能够耦合载波信号，还能将通信电路与工频交流强电进行隔离，提高了系统的可靠性，不仅如此，通过第三电容和电感组成的谐振网络将干扰信号进行有效过滤，提高了信号传输的稳定性，同时通过双向二极管，起到浪涌保护的作用，有效地避免了后面电路被高压击穿，提高了电路的可靠性。The invention has the beneficial effects that the new power grid measurement and control system adopting the power carrier technology realizes the signal transmission of the system through the power carrier through the electronic carrier generator, thereby reducing the wiring cost; At the same time, the transformer can not only couple the carrier signal, but also isolate the communication circuit from the power frequency AC power, which improves the reliability of the system. Moreover, the interference signal composed of the third capacitor and the inductor effectively filters the interference signal. The stability of the signal transmission is improved, and the function of the surge protection is ensured by the bidirectional diode, thereby effectively preventing the back circuit from being broken down by the high voltage and improving the reliability of the circuit.
附图说明DRAWINGS
下面结合附图和实施例对本发明进一步说明。The invention will now be further described with reference to the drawings and embodiments.
图1是本发明的采用电力载波技术的新型电网测控系统的结构示意图；1 is a schematic structural view of a novel power grid measurement and control system using power carrier technology according to the present invention;
图2是本发明的采用电力载波技术的新型电网测控系统的电网测控仪表的结构示意图；2 is a schematic structural diagram of a power grid measurement and control instrument of a novel power grid measurement and control system using power carrier technology according to the present invention;
图3是本发明的采用电力载波技术的新型电网测控系统的载波发射电路的电路原理图；3 is a circuit schematic diagram of a carrier transmitting circuit of a novel power grid measurement and control system using power carrier technology according to the present invention;
图中：1.中央服务器，2.电子载波发生器，3.光纤，4.连接线，5.电网测控仪表，6.显示界面，7.控制按键，8.信号接线端子，9.电源接线端子，10.壳体，R1.电阻，Q1.三极管，T1.变压器，L1.电感，TVS.双向二极管，C1.第一电容，C2.第二电容，C3.第三电容。In the figure: 1. Central server, 2. Electronic carrier generator, 3. Optical fiber, 4. Connection line, 5. Power grid measurement and control instrument, 6. Display interface, 7. Control button, 8. Signal terminal, 9. Power wiring Terminal, 10. Housing, R1. Resistor, Q1. Transistor, T1. Transformer, L1. Inductor, TVS. Bidirectional Diode, C1. First Capacitor, C2. Second Capacitor, C3.
具体实施方式detailed description
现在结合附图对本发明作进一步详细的说明。这些附图均为简化的示意图，仅以示意方式说明本发明的基本结构，因此其仅显示与本发明有关的构成。The invention will now be described in further detail with reference to the drawings. The drawings are simplified schematic diagrams, and only the basic structure of the present invention is illustrated in a schematic manner, and thus only the configurations related to the present invention are shown.
如图1-图3所示，一种采用电力载波技术的新型电网测控系统，包括中央服务器1、电子载波发生器2和若干电网测控仪表5，所述中央服务器1与电子载波发生器2电连接有光纤3，所述电子载波发生器2与电网测控仪表5电连接有连接线4； As shown in FIG. 1 to FIG. 3, a novel power grid measurement and control system using power carrier technology includes a central server 1, an electronic carrier generator 2, and a plurality of grid measurement and control instruments 5, wherein the central server 1 and the electronic carrier generator 2 are powered. Connected with an optical fiber 3, the electronic carrier generator 2 is electrically connected to the grid measuring and controlling instrument 5 with a connecting line 4;
所述电子载波发生器2中设有载波发射模块，所述电网测控仪表5中设有载波接收模块，所述载波发射模块与载波接收模块连接，所述载波发射模块包括载波发射电路，所述载波发射电路包括电阻R1、三极管Q1、变压器T1、电感L1、双向二极管TVS、第一电容C1、第二电容C2和第三电容C3，所述三极管Q1的发射极接地，所述三极管Q1的基极与电阻R1连接，所述三极管Q1的集电极与变压器T1的输入回路的一端连接，所述三极管Q1的集电极通过第一电容C1与变压器T1的输入回路的另一端连接，所述第二电容C2与第一电容C1并联，所述变压器T1的输入回路的中心点外接5V直流电压电源，所述变压器T1的输出回路的一端通过电感L1、第三电容C3和双向二极管TVS组成的串联电路与变压器T1的输出回路的另一端连接。a carrier transmitting module is disposed in the electronic carrier generator 2, a carrier receiving module is disposed in the power grid measuring and controlling device 5, the carrier transmitting module is connected to a carrier receiving module, and the carrier transmitting module includes a carrier transmitting circuit, The carrier transmitting circuit includes a resistor R1, a transistor Q1, a transformer T1, an inductor L1, a bidirectional diode TVS, a first capacitor C1, a second capacitor C2, and a third capacitor C3. The emitter of the transistor Q1 is grounded, and the base of the transistor Q1 The pole is connected to the resistor R1, the collector of the transistor Q1 is connected to one end of the input loop of the transformer T1, and the collector of the transistor Q1 is connected to the other end of the input loop of the transformer T1 through the first capacitor C1, the second The capacitor C2 is connected in parallel with the first capacitor C1. The center of the input loop of the transformer T1 is externally connected with a 5V DC voltage source. One end of the output loop of the transformer T1 is connected through a series circuit comprising an inductor L1, a third capacitor C3 and a bidirectional diode TVS. Connected to the other end of the output loop of transformer T1.
作为优选，利用单模光纤通讯信号传输稳定的特点，提高了系统信号传输的可靠性，所述光纤3为单模光纤。Preferably, the reliability of the signal transmission of the system is improved by utilizing a stable transmission signal of the single mode optical fiber, and the optical fiber 3 is a single mode optical fiber.
作为优选，利用屏蔽导线对干扰信号有屏蔽的特点，提高了系统的抗干扰能力，所述连接线4为屏蔽导线。Preferably, the shielded wire is shielded from the interference signal to improve the anti-interference ability of the system, and the connecting wire 4 is a shielded wire.
作为优选，为了提高电网测控仪表5的实用性，所述电网测控仪表5包括壳体10、设置在壳体10上的显示界面6、控制按键7、信号接线端子8和电源接线端子9。Preferably, in order to improve the practicability of the power grid measuring and controlling instrument 5, the power grid measuring and controlling instrument 5 includes a housing 10, a display interface 6 provided on the housing 10, a control button 7, a signal terminal 8 and a power terminal 9.
作为优选，为了提高电网测控仪表5的智能化，所述电网测控仪表5中设有中央控制装置，所述中央控制装置采用的芯片型号为GD32F103RBT6，所述显示界面6、控制按键7、信号接线端子8和电源接线端子9均与中央控制装置电连接。Preferably, in order to improve the intelligence of the power grid measuring and controlling instrument 5, the power grid measuring and controlling instrument 5 is provided with a central control device, the chip type of the central control device is GD32F103RBT6, the display interface 6, the control button 7, the signal wiring Both the terminal 8 and the power supply terminal 9 are electrically connected to the central control unit.
作为优选，为了进一步提高电网测控仪表5的实用性，所述显示界面6为液晶显示屏。 Preferably, in order to further improve the practicability of the power grid measuring and controlling instrument 5, the display interface 6 is a liquid crystal display.
作为优选，利用轻触按键灵敏度高的特点，进一步提高电网测控仪表5的实用性，所述控制按键7为轻触按键。Preferably, the utility of the touch control button 5 is further improved by the high sensitivity of the touch button, and the control button 7 is a touch button.
作为优选，所述三极管Q1为NPN三极管。Preferably, the transistor Q1 is an NPN transistor.
该采用电力载波技术的新型电网测控系统：通过各电网测控仪表5对该区域的电网电力参数进行实时测量，随后通过电力载波的形式通过连接线4与电子载波发生器2进行信号传输，再通过光纤3将数据传输给中央服务器1，从而实现了对该区域的电网电力参数的实时监控。The new power grid measurement and control system adopting power carrier technology: real-time measurement of grid power parameters of the region through each grid measurement and control instrument 5, and then signal transmission through the connection line 4 and the electronic carrier generator 2 in the form of a power carrier, and then through The optical fiber 3 transmits the data to the central server 1, thereby realizing real-time monitoring of the grid power parameters of the area.
为了保证该系统电力载波传输的可靠性和稳定性，电子载波发生器2中设有载波发射模块，通过载波发射模块中的载波发射电路的变压器T1不仅能够耦合载波信号，还能将通信电路与工频交流强电进行隔离，提高了系统的可靠性，而且变压器T1的中心点外接5V直流电压电源，以减少由于信号的接入使得第一电容C1、第二电容C2跟变压器T1输入端组成的并联谐振网络的Q值降低甚至停振，进一步提高了系统的可靠性；电路中加入了双向二极管TVS，是瞬变抑制二极管，起到浪涌保护的作用，有效地避免了后面电路被高压击穿，提高了电路的可靠性。而且，通过第三电容C3和电感L1组成的谐振网络将干扰信号进行有效过滤，提高了信号传输的稳定性。In order to ensure the reliability and stability of the power carrier transmission of the system, the carrier transmitting module is provided in the electronic carrier generator 2, and the transformer T1 of the carrier transmitting circuit in the carrier transmitting module can not only couple the carrier signal, but also can communicate the communication circuit with Power frequency AC power is isolated to improve the reliability of the system, and the center point of the transformer T1 is connected with a 5V DC voltage power supply to reduce the first capacitor C1, the second capacitor C2 and the input terminal of the transformer T1 due to signal access. The Q value of the parallel resonant network is reduced or even stopped, which further improves the reliability of the system. The bidirectional diode TVS is added to the circuit, which is a transient suppression diode, which acts as a surge protection, effectively avoiding the high voltage of the latter circuit. Breakdown improves the reliability of the circuit. Moreover, the resonant network composed of the third capacitor C3 and the inductor L1 effectively filters the interference signal, thereby improving the stability of the signal transmission.
与现有技术相比，该采用电力载波技术的新型电网测控系统通过电子载波发生器2，实现了系统通过电力载波的方式进行信号传输，降低了布线成本；同时通过变压器T1不仅能够耦合载波信号，还能将通信电路与工频交流强电进行隔离，提高了系统的可靠性，不仅如此，通过第三电容C3和电感L1组成的谐振网络将干扰信号进行有效过滤，提高了信号传输的稳定性，同时通过双向二极管TVS，起到浪涌保护的作用，有效地避免了后面电路被高压击穿，提高了电路的可靠性。 Compared with the prior art, the new power grid measurement and control system adopting the power carrier technology realizes the signal transmission of the system through the power carrier mode through the electronic carrier generator 2, thereby reducing the wiring cost; at the same time, not only the carrier signal can be coupled through the transformer T1. The communication circuit can be isolated from the power frequency AC power, which improves the reliability of the system. Moreover, the resonant network composed of the third capacitor C3 and the inductor L1 effectively filters the interference signal, thereby improving the stability of the signal transmission. At the same time, through the bidirectional diode TVS, it acts as a surge protection, effectively avoiding the high voltage breakdown of the latter circuit and improving the reliability of the circuit.
以上述依据本发明的理想实施例为启示，通过上述的说明内容，相关工作人员完全可以在不偏离本项发明技术思想的范围内，进行多样的变更以及修改。本项发明的技术性范围并不局限于说明书上的内容，必须要根据权利要求范围来确定其技术性范围。 In view of the above-described embodiments of the present invention, various changes and modifications may be made by those skilled in the art without departing from the scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and the technical scope thereof must be determined according to the scope of the claims.

Claims (8)

  1. 一种采用电力载波技术的新型电网测控系统，其特征在于，包括中央服务器(1)、电子载波发生器(2)和若干电网测控仪表(5)，所述中央服务器(1)与电子载波发生器(2)电连接有光纤(3)，所述电子载波发生器(2)与电网测控仪表(5)电连接有连接线(4)；A novel power grid measurement and control system using power carrier technology, characterized in that it comprises a central server (1), an electronic carrier generator (2) and a plurality of grid measurement and control instruments (5), wherein the central server (1) and the electronic carrier occur The device (2) is electrically connected to the optical fiber (3), and the electronic carrier generator (2) is electrically connected with the power grid measuring and controlling instrument (5) with a connecting line (4);
    所述电子载波发生器(2)中设有载波发射模块，所述电网测控仪表(5)中设有载波接收模块，所述载波发射模块与载波接收模块连接，所述载波发射模块包括载波发射电路，所述载波发射电路包括电阻(R1)、三极管(Q1)、变压器(T1)、电感(L1)、双向二极管(TVS)、第一电容(C1)、第二电容(C2)和第三电容(C3)，所述三极管(Q1)的发射极接地，所述三极管(Q1)的基极与电阻(R1)连接，所述三极管(Q1)的集电极与变压器(T1)的输入回路的一端连接，所述三极管(Q1)的集电极通过第一电容(C1)与变压器(T1)的输入回路的另一端连接，所述第二电容(C2)与第一电容(C1)并联，所述变压器(T1)的输入回路的中心点外接5V直流电压电源，所述变压器(T1)的输出回路的一端通过电感(L1)、第三电容(C3)和双向二极管(TVS)组成的串联电路与变压器(T1)的输出回路的另一端连接。A carrier transmitting module is disposed in the electronic carrier generator (2), a carrier receiving module is disposed in the power grid measuring and controlling instrument (5), the carrier transmitting module is connected to a carrier receiving module, and the carrier transmitting module includes a carrier transmitting module. a circuit, the carrier transmitting circuit comprising a resistor (R1), a triode (Q1), a transformer (T1), an inductor (L1), a bidirectional diode (TVS), a first capacitor (C1), a second capacitor (C2), and a third Capacitor (C3), the emitter of the triode (Q1) is grounded, the base of the triode (Q1) is connected to a resistor (R1), and the collector of the triode (Q1) is connected to the input circuit of the transformer (T1) Connected at one end, the collector of the transistor (Q1) is connected to the other end of the input circuit of the transformer (T1) through the first capacitor (C1), and the second capacitor (C2) is connected in parallel with the first capacitor (C1). The center point of the input circuit of the transformer (T1) is externally connected with a 5V DC voltage power supply, and one end of the output circuit of the transformer (T1) is connected through a series circuit of an inductor (L1), a third capacitor (C3) and a bidirectional diode (TVS). Connected to the other end of the output circuit of the transformer (T1).
  2. 如权利要求1所述的采用电力载波技术的新型电网测控系统，其特征在于，所述光纤(3)为单模光纤。A novel power grid measurement and control system using power carrier technology according to claim 1, wherein said optical fiber (3) is a single mode fiber.
  3. 如权利要求1所述的采用电力载波技术的新型电网测控系统，其特征在于，所述连接线(4)为屏蔽导线。A novel power grid measurement and control system using power carrier technology according to claim 1, wherein said connecting line (4) is a shielded wire.
  4. 如权利要求1所述的采用电力载波技术的新型电网测控系统，其特征在于，所述电网测控仪表(5)包括壳体(10)、设置在壳体(10)上的显示界面(6)、控制按键(7)、信号接线端子(8)和电源接线端子(9)。A novel power grid measurement and control system using power carrier technology according to claim 1, wherein said power grid monitoring and control instrument (5) comprises a housing (10) and a display interface (6) disposed on the housing (10) , control button (7), signal terminal (8) and power terminal (9).
  5. 如权利要求4所述的采用电力载波技术的新型电网测控系统，其特征在 于，所述电网测控仪表(5)中设有中央控制装置，所述中央控制装置采用的芯片型号为GD32F103RBT6，所述显示界面(6)、控制按键(7)、信号接线端子(8)和电源接线端子(9)均与中央控制装置电连接。A novel power grid measurement and control system using power carrier technology according to claim 4, characterized in that The central control device (5) is provided with a central control device, the central control device adopts a chip model of GD32F103RBT6, the display interface (6), a control button (7), a signal terminal (8), and The power terminals (9) are electrically connected to the central control unit.
  6. 如权利要求4所述的采用电力载波技术的新型电网测控系统，其特征在于，所述显示界面(6)为液晶显示屏。The novel power grid measurement and control system using power carrier technology according to claim 4, wherein the display interface (6) is a liquid crystal display.
  7. 如权利要求4所述的采用电力载波技术的新型电网测控系统，其特征在于，所述控制按键(7)为轻触按键。A novel power grid measurement and control system using power carrier technology according to claim 4, wherein said control button (7) is a light touch button.
  8. 如权利要求1所述的采用电力载波技术的新型电网测控系统，其特征在于，所述三极管(Q1)为NPN三极管。 A novel power grid measurement and control system using power carrier technology according to claim 1, wherein said transistor (Q1) is an NPN transistor.
PCT/CN2016/075724 2016-03-05 2016-03-05 New type of power-grid measurement and control system using power carrier technology WO2017152312A1 (en)

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