CN112511466A - Ethernet data transmission system of domain type rapid protection system of power distribution website - Google Patents

Ethernet data transmission system of domain type rapid protection system of power distribution website Download PDF

Info

Publication number
CN112511466A
CN112511466A CN202011314581.8A CN202011314581A CN112511466A CN 112511466 A CN112511466 A CN 112511466A CN 202011314581 A CN202011314581 A CN 202011314581A CN 112511466 A CN112511466 A CN 112511466A
Authority
CN
China
Prior art keywords
data
channel
fast
power distribution
distribution network
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
Application number
CN202011314581.8A
Other languages
Chinese (zh)
Inventor
吴海江
倪伟东
黄明辉
陈锦荣
廖峰
黎永豪
王跃强
钟少恒
邓旭阳
黄国平
郭泽豪
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.)
Foshan Power Supply Bureau of Guangdong Power Grid Corp
Original Assignee
Foshan Power Supply Bureau of Guangdong Power Grid Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Foshan Power Supply Bureau of Guangdong Power Grid Corp filed Critical Foshan Power Supply Bureau of Guangdong Power Grid Corp
Priority to CN202011314581.8A priority Critical patent/CN112511466A/en
Publication of CN112511466A publication Critical patent/CN112511466A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/35—Switches specially adapted for specific applications
    • H04L49/351—Switches specially adapted for specific applications for local area network [LAN], e.g. Ethernet switches
    • 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
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00034—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 an electric power substation
    • 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
    • H02J13/00036—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 switches, relays or circuit breakers
    • H02J13/0004—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 switches, relays or circuit breakers involved in a protection system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/55—Prevention, detection or correction of errors
    • H04L49/552—Prevention, detection or correction of errors by ensuring the integrity of packets received through redundant connections
    • 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
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • 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
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Small-Scale Networks (AREA)

Abstract

According to the Ethernet data transmission system of the domain type quick protection system of the power distribution website, two data channels, namely a quick channel and a standard channel, are established among the domain type quick protection device of the power distribution website, the domain type quick protection terminal of the power distribution website and a domain type quick protection system switch of the power distribution website, so that real-time and quick transmission of control command data of the domain type quick protection system of the power distribution website is realized. The invention also provides an Ethernet data transmission method, two data channels of a fast channel and a standard channel are established among the domain type fast protection device of the power distribution network, the domain type fast protection terminal of the power distribution network and the domain type fast protection system switch of the power distribution network, and the corresponding data channel is selected by judging the type of data passing through the domain type fast protection system switch of the power distribution network in real time, so that the fast and effective transmission of the data is realized.

Description

Ethernet data transmission system of domain type rapid protection system of power distribution website
Technical Field
The invention relates to the technical field of data transmission, in particular to an Ethernet data transmission system and method of a domain type rapid protection system of a power distribution website.
Background
In the existing power distribution website, an ethernet switch is generally used as a network device for address identification and forwarding of ethernet data frames. Conventional ethernet switches typically queue inbound data frames for in-order forwarding to the next switch or destination device. However, in the domain type fast protection system of the power distribution network, various data are transmitted, such as video data, voltage and current waveform data collected by the domain type fast protection terminal of the power distribution network, state data of the domain type fast protection terminal of the power distribution network, a control command issued by the domain type fast protection device of the power distribution network to the protection terminal, management and configuration data issued by the domain type fast protection device of the power distribution network to the protection terminal, and the like, and the requirements of each type of data on time delay are different. In a domain type rapid protection system of a power distribution network, the current and voltage waveform data sent to the protection device by the protection terminal and the control command sent to the protection terminal by the protection device after being calculated according to the voltage and current data have very high real-time requirements.
Chinese patent application publication No. CN103095607A discloses a method for implementing a real-time priority ethernet controller in 2013, month 5 and 8, which provides a method for implementing a real-time ethernet controller based on hardware priority, but even if control command data is given with ethernet high priority, the control command data of the protection device needs to wait for the transmission of the normal data being transmitted to be successfully transmitted after the transmission of the normal data is finished because a large amount of other data is being transmitted in the channel, which may cause the transmission path of the data link layer to be occupied by the normal data for a long time, cause a great transmission delay of the control command data, and fail to complete the fast protection function of the power distribution network domain type fast protection system.
Disclosure of Invention
The invention provides an Ethernet data transmission system and method of a power distribution website domain type rapid protection system, aiming at overcoming the technical defects that the transmission path of a data link layer of the existing Ethernet transmission system is occupied by common data for a long time, so that the control command data causes great transmission delay and the rapid protection function of the power distribution website domain type rapid protection system cannot be completed.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the Ethernet data transmission system of the domain type fast protection system of the power distribution network comprises a domain type fast protection device of the power distribution network, a plurality of domain type fast protection terminals of the power distribution network and a plurality of domain type fast protection system exchangers of the power distribution network; two data channels of a fast channel and a standard channel are established between a domain type fast protection device of a power distribution network, a domain type fast protection terminal of the power distribution network and a domain type fast protection system switch of the power distribution network, wherein:
the distribution network domain type rapid protection terminal sends voltage, current waveform data and state data to a distribution network domain type rapid protection system switch which is electrically connected with the distribution network domain type rapid protection terminal;
the distribution network domain type rapid protection system switch transmits voltage, current waveform data and state data to a distribution network domain type rapid protection device through a network link;
the distribution network domain type rapid protection device collects all voltage and current waveform data and state data and then analyzes the data to generate control command data and management data; the domain type rapid protection device of the power distribution network sends the control command data and the management data to the corresponding domain type rapid protection system switch of the power distribution network, and the domain type rapid protection system switch of the power distribution network transmits the control command data and the management data to the corresponding domain type rapid protection terminal of the power distribution network through the rapid channel and the standard channel.
According to the scheme, two data channels, namely the fast channel and the standard channel, are established among the power distribution website domain type fast protection device, the power distribution website domain type fast protection terminal and the power distribution website domain type fast protection system switch, so that data interaction between the power distribution website domain type fast protection device and the power distribution website domain type fast protection terminal is realized, and real-time and fast transmission of control command data of the power distribution website domain type fast protection system is realized.
The distribution network domain type rapid protection system switch comprises a rapid channel interface, a standard channel interface, a receiving/sending decision component and two network test link interfaces; wherein:
the fast channel interface and the standard channel interface are electrically connected with the receiving/sending decision-making component;
the two network test link interfaces are electrically connected with the receiving/sending decision-making component;
the distribution network domain type rapid protection system switch is electrically connected with a plurality of distribution network domain type rapid protection terminals through the rapid channel interface and the standard channel interface; the power distribution network domain type rapid protection system switch is in network connection with the power distribution network domain type rapid protection device through a network test link interface, and two channels, namely a rapid channel and a standard channel, are formed on the power distribution network domain type rapid protection system switch;
and the receiving/sending decision module is used for preferentially determining the sending of the fast channel data frame and sending the standard channel data frame after the fast channel data frame is sent.
When the distribution network domain type rapid protection system switch sends data, the sending decision module judges whether the data is rapid channel data or not:
if the data of the fast channel exists, the sending decision module judges whether the network link has the standard channel data which is being transmitted, if so, the sending decision module interrupts the transmission of the standard channel data, and then sends the data of the fast channel, and if not, the data of the fast channel is directly sent;
if the data is not the fast channel data, the sending decision module judges whether the network link has the fast channel data to be sent, if so, the sending decision module waits for the fast channel data to be sent, and then the sending decision module sends the standard channel data until the fast channel data is sent.
When the switch of the domain type rapid protection system of the power distribution network receives data, the receiving decision component judges whether the data is local data:
if the local data is the local data, the decision-making component is received to judge whether the data is a complete frame or an interrupted frame, and if the data is the complete frame, the data enters a corresponding fast channel or a standard channel and is sent to the power distribution network domain type fast protection device or the power distribution network domain type fast protection terminal; if the frame is an interrupt frame, carrying out interrupt frame recombination; after the recombination is finished, the data enters a corresponding fast channel or a standard channel and is sent to the power distribution network domain type fast protection device or the power distribution network domain type fast protection terminal;
if the data is not local data, the sending decision module judges the channel type of the data and directly sends the data.
When the fast channel data frame arrives, the receiving/sending decision module applies for sending the fast channel data frame and interrupts the standard channel data frame being transmitted, repacks the unsent data part of the interrupted data frame, and arranges the repacked data frame at the first position of a standard channel data queue to be sent; and when determining that two or more continuous data frames passing through the received standard channel are interrupt data frames, the receiving/sending decision component recombines the two or more interrupt data frames into one standard channel data frame and resends the recombined standard channel data frame.
The Ethernet data transmission method of the domain type rapid protection system of the power distribution network station comprises the steps of establishing two data channels, namely a rapid channel and a standard channel, among a domain type rapid protection device of the power distribution network station, a domain type rapid protection terminal of the power distribution network station and a domain type rapid protection system switch of the power distribution network station, and selecting the corresponding data channel by judging the type of data passing through the domain type rapid protection system switch of the power distribution network station in real time to realize rapid and effective transmission of the data.
The fast channel and standard channel establishing process specifically comprises the following steps:
s1: a receiving/sending decision component, a fast channel interface, a standard channel interface and two network test link interfaces are arranged on a switch of a domain type fast protection system of a power distribution website; the fast channel interface and the standard channel interface are connected with the corresponding channel interfaces through the receiving/sending decision-making component to form a switch fast channel and a switch standard channel;
s2: if the data channel of the domain type quick protection device of the power distribution network is connected with the domain type quick protection terminal of the power distribution network through the quick channel of the switch, establishing a quick channel; if the data channel of the domain type quick protection device of the power distribution network is connected with the domain type quick protection terminal of the power distribution network through the standard channel of the switch, a standard channel interface is established;
s3: after the fast channel and the standard channel are established, the type of data passing through the switch of the domain type fast protection system of the power distribution network is judged in real time through the receiving/sending decision-making component, and the corresponding data channel is selected, so that the fast and effective transmission of the data is realized.
In step S3, when the switch of the domain type fast protection system of the power distribution network needs to send data, the sending decision module determines whether the data is fast channel data:
if the data is the fast channel data, judging whether the network link has the standard channel data which is being transmitted, if so, interrupting the transmission of the standard channel data, and then sending the fast channel data, and if not, directly sending the fast channel data;
if the data is not the fast channel data, judging whether the network link has the fast channel data to wait for sending, if so, waiting for the fast channel data to send, and sending the standard channel data again until the fast channel data is sent.
In step S3, when the switch of the power distribution network domain type fast protection system is receiving data, the receiving decision module determines whether the data is local data:
if the local data is the local data, judging whether the data is a complete frame or an interrupted frame, if the data is the complete frame, entering the corresponding fast channel or standard channel, and sending the data to the corresponding domain-type fast protection device or domain-type fast protection terminal of the power distribution network; if the frame is an interrupt frame, carrying out interrupt frame recombination; after the recombination is finished, the data enters a corresponding fast channel or a standard channel and is sent to a corresponding power distribution network domain type fast protection device or a corresponding power distribution network domain type fast protection terminal;
if the data is not the local data, the sending decision module judges the channel type of the data and directly sends the data.
In step S3, when the fast channel data frame arrives, the receiving/sending decision module applies for sending the fast channel data frame and interrupts the standard channel data frame being transmitted, repacks the unsent data portion of the interrupted data frame, and arranges the repacked data frame in the first bit of the standard channel data queue to be sent; when two or more continuous data frames passing through the received standard channel are determined to be the interruption data frames, the receiving/sending decision module recombines the two or more interruption data frames into one standard channel data frame and resends the recombined standard channel data frame.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
according to the Ethernet data transmission system and method of the power distribution website domain type quick protection system, two data channels, namely a quick channel and a standard channel, are established among the power distribution website domain type quick protection device, the power distribution website domain type quick protection terminal and the power distribution website domain type quick protection system switch, so that data interaction between the power distribution website domain type quick protection device and the power distribution website domain type quick protection terminal is realized, and real-time and quick transmission of control command data of the power distribution website domain type quick protection system is realized.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention in connection;
FIG. 2 is a schematic flow diagram of the process of the present invention;
FIG. 3 is a flow diagram of a switch sending data in one embodiment;
fig. 4 is a flow diagram of a switch receive data in one embodiment.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product;
it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
Example 1
In the prior art, the method for transmitting the QoS priority of the Ethernet data link layer comprises the following steps: QoS (Quality of Service) refers to a network that can provide better Service capability for specified network communication by using various basic technologies, and is a security mechanism of the network, which is a technology for solving the problems of network delay and congestion. For data transfer devices (ethernet switches), QoS is also a relatively common priority function. When data enters, the exchanger provides different levels of priority for the data according to the system requirement, and the corresponding rules are corresponding to different sending queues, and the data transmission is arranged according to the queues. However, when the data link at the egress of the switch is being occupied by data, the Qos transmission method cannot interrupt the data being forwarded by the occupied data link. The Qos priority is only managed to the data ingress and queuing queues, and the data being forwarded at the switch egress cannot be managed. The data with high priority still need wait for the export data link when idle, just can outwards transmit data, and this kind of condition still can cause certain data delay, unsatisfied distribution website territory formula quick protection system control command's absolute quick transmission continuation demand.
Therefore, in order to solve the technical problems in the prior art, as shown in fig. 1, the present invention provides an ethernet data transmission system of a domain type fast protection system of a central power distribution network, which includes a domain type fast protection device of a power distribution network, a plurality of domain type fast protection terminals of the power distribution network, and a plurality of domain type fast protection system switches of the power distribution network; two data channels of a fast channel and a standard channel are established between a domain type fast protection device of a power distribution network, a domain type fast protection terminal of the power distribution network and a domain type fast protection system switch of the power distribution network, wherein:
the distribution network domain type rapid protection terminal sends voltage, current waveform data and state data to a distribution network domain type rapid protection system switch which is electrically connected with the distribution network domain type rapid protection terminal;
the distribution network domain type rapid protection system switch transmits voltage, current waveform data and state data to a distribution network domain type rapid protection device through a network link;
the distribution network domain type rapid protection device collects all voltage and current waveform data and state data and then analyzes the data to generate control command data and management data; the domain type rapid protection device of the power distribution network sends the control command data and the management data to the corresponding domain type rapid protection system switch of the power distribution network, and the domain type rapid protection system switch of the power distribution network transmits the control command data and the management data to the corresponding domain type rapid protection terminal of the power distribution network through the rapid channel and the standard channel.
In the specific implementation process, two data channels, namely a fast channel and a standard channel, are established among the power distribution network domain type fast protection device, the power distribution network domain type fast protection terminal and the power distribution network domain type fast protection system switch, so that data interaction between the power distribution network domain type fast protection device and the power distribution network domain type fast protection terminal is realized, and real-time and fast transmission of control command data of the power distribution network domain type fast protection system is realized.
More specifically, as shown in fig. 2, the domain-based fast protection system switch of the power distribution network includes a fast channel interface, a standard channel interface, a receiving/sending decision module, and two network test link interfaces; wherein:
the fast channel interface and the standard channel interface are electrically connected with the receiving/sending decision-making component;
the two network test link interfaces are electrically connected with the receiving/sending decision-making component;
the distribution network domain type rapid protection system switch is electrically connected with a plurality of distribution network domain type rapid protection terminals through the rapid channel interface and the standard channel interface; the power distribution network domain type rapid protection system switch is in network connection with the power distribution network domain type rapid protection device through a network test link interface, and two channels, namely a rapid channel and a standard channel, are formed on the power distribution network domain type rapid protection system switch;
and the receiving/sending decision module is used for preferentially determining the sending of the fast channel data frame and sending the standard channel data frame after the fast channel data frame is sent.
More specifically, when the switch of the domain type fast protection system of the power distribution network station sends data, the sending decision module determines whether the data is fast channel data:
if the data of the fast channel exists, the sending decision module judges whether the network link has the standard channel data which is being transmitted, if so, the sending decision module interrupts the transmission of the standard channel data, and then sends the data of the fast channel, and if not, the data of the fast channel is directly sent;
if the data is not the fast channel data, the sending decision module judges whether the network link has the fast channel data to be sent, if so, the sending decision module waits for the fast channel data to be sent, and then the sending decision module sends the standard channel data until the fast channel data is sent.
More specifically, when the switch of the domain type rapid protection system of the power distribution network receives data, the receiving decision module determines whether the data is local data:
if the local data is the local data, the decision-making component is received to judge whether the data is a complete frame or an interrupted frame, and if the data is the complete frame, the data enters a corresponding fast channel or a standard channel and is sent to the power distribution network domain type fast protection device or the power distribution network domain type fast protection terminal; if the frame is an interrupt frame, carrying out interrupt frame recombination; after the recombination is finished, the data enters a corresponding fast channel or a standard channel and is sent to the power distribution network domain type fast protection device or the power distribution network domain type fast protection terminal;
if the data is not local data, the sending decision module judges the channel type of the data and directly sends the data.
More specifically, when the fast channel data frame arrives, the receiving/sending decision module applies for sending the fast channel data frame and interrupts the standard channel data frame being transmitted, repacks the unsent data part of the interrupted data frame, and arranges the repacked data frame at the first position of the standard channel data queue to be sent; and when determining that two or more continuous data frames passing through the received standard channel are interrupt data frames, the receiving/sending decision component recombines the two or more interrupt data frames into one standard channel data frame and resends the recombined standard channel data frame.
Example 2
More specifically, on the basis of embodiment 1, an ethernet data transmission method for a domain type fast protection system of a power distribution website is provided, in which two data channels, namely a fast channel and a standard channel, are established among a domain type fast protection device of the power distribution website, a domain type fast protection terminal of the power distribution website and a domain type fast protection system switch of the power distribution website, and a corresponding data channel is selected by judging the type of data passing through the domain type fast protection system switch of the power distribution website in real time, so as to realize fast and effective transmission of data.
More specifically, the fast channel and the standard channel establishing process specifically include:
s1: a receiving/sending decision component, a fast channel interface, a standard channel interface and two network test link interfaces are arranged on a switch of a domain type fast protection system of a power distribution website; the fast channel interface and the standard channel interface are connected with the corresponding channel interfaces through the receiving/sending decision-making component to form a switch fast channel and a switch standard channel;
s2: if the data channel of the domain type quick protection device of the power distribution network is connected with the domain type quick protection terminal of the power distribution network through the quick channel of the switch, establishing a quick channel; if the data channel of the domain type quick protection device of the power distribution network is connected with the domain type quick protection terminal of the power distribution network through the standard channel of the switch, a standard channel interface is established;
s3: after the fast channel and the standard channel are established, the type of data passing through the switch of the domain type fast protection system of the power distribution network is judged in real time through the receiving/sending decision-making component, and the corresponding data channel is selected, so that the fast and effective transmission of the data is realized.
More specifically, as shown in fig. 3, in the step S3, when the distribution network domain type fast protection system switch needs to send data, the sending decision module determines whether the data is fast channel data:
if the data is the fast channel data, judging whether the network link has the standard channel data which is being transmitted, if so, interrupting the transmission of the standard channel data, and then sending the fast channel data, and if not, directly sending the fast channel data;
if the data is not the fast channel data, judging whether the network link has the fast channel data to wait for sending, if so, waiting for the fast channel data to send, and sending the standard channel data again until the fast channel data is sent.
More specifically, as shown in fig. 2, in the step S3, when the power distribution network domain type fast protection system switch is receiving data, the reception decision module determines whether the data is local data:
if the local data is the local data, judging whether the data is a complete frame or an interrupted frame, if the data is the complete frame, entering the corresponding fast channel or standard channel, and sending the data to the corresponding domain-type fast protection device or domain-type fast protection terminal of the power distribution network; if the frame is an interrupt frame, carrying out interrupt frame recombination; after the recombination is finished, the data enters a corresponding fast channel or a standard channel and is sent to a corresponding power distribution network domain type fast protection device or a corresponding power distribution network domain type fast protection terminal;
if the data is not local data, the sending decision module judges the channel type of the data, and directly sends the data, as shown in a position a in fig. 3 and 4.
More specifically, in step S3, when the fast channel data frame arrives, the receiving/sending decision module applies for sending the fast channel data frame and interrupts the standard channel data frame being transmitted, repacks the unsent data portion of the interrupted data frame, and arranges the repacked data frame at the first position of the standard channel data queue to be sent; when two or more continuous data frames passing through the received standard channel are determined to be the interruption data frames, the receiving/sending decision module recombines the two or more interruption data frames into one standard channel data frame and resends the recombined standard channel data frame.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The Ethernet data transmission system of the domain type fast protection system of the power distribution network is characterized by comprising a domain type fast protection device of the power distribution network, a plurality of domain type fast protection terminals of the power distribution network and a plurality of domain type fast protection system switches of the power distribution network; two data channels of a fast channel and a standard channel are established between a domain type fast protection device of a power distribution network, a domain type fast protection terminal of the power distribution network and a domain type fast protection system switch of the power distribution network, wherein:
the distribution network domain type rapid protection terminal sends voltage, current waveform data and state data to a distribution network domain type rapid protection system switch which is electrically connected with the distribution network domain type rapid protection terminal;
the distribution network domain type rapid protection system switch transmits voltage, current waveform data and state data to a distribution network domain type rapid protection device through a network link;
the distribution network domain type rapid protection device collects all voltage and current waveform data and state data and then analyzes the data to generate control command data and management data; the domain type rapid protection device of the power distribution network sends the control command data and the management data to the corresponding domain type rapid protection system switch of the power distribution network, and the domain type rapid protection system switch of the power distribution network transmits the control command data and the management data to the corresponding domain type rapid protection terminal of the power distribution network through the rapid channel and the standard channel.
2. The Ethernet data transmission system of the power distribution network domain type rapid protection system of claim 1, wherein the power distribution network domain type rapid protection system switch comprises a rapid channel interface, a standard channel interface, a receiving/sending decision component and two network test link interfaces; wherein:
the fast channel interface and the standard channel interface are electrically connected with the receiving/sending decision-making component;
the two network test link interfaces are electrically connected with the receiving/sending decision-making component;
the distribution network domain type rapid protection system switch is electrically connected with a plurality of distribution network domain type rapid protection terminals through the rapid channel interface and the standard channel interface; the power distribution network domain type rapid protection system switch is in network connection with the power distribution network domain type rapid protection device through a network test link interface, and two channels, namely a rapid channel and a standard channel, are formed on the power distribution network domain type rapid protection system switch;
and the receiving/sending decision module is used for preferentially determining the sending of the fast channel data frame and sending the standard channel data frame after the fast channel data frame is sent.
3. The ethernet data transmission system of the domain type fast protection system of power distribution network as claimed in claim 2, wherein when the switch of the domain type fast protection system of power distribution network transmits data, the transmission decision module determines whether the data is fast channel data:
if the data of the fast channel exists, the sending decision module judges whether the network link has the standard channel data which is being transmitted, if so, the sending decision module interrupts the transmission of the standard channel data, and then sends the data of the fast channel, and if not, the data of the fast channel is directly sent;
if the data is not the fast channel data, the sending decision module judges whether the network link has the fast channel data to be sent, if so, the sending decision module waits for the fast channel data to be sent, and then the sending decision module sends the standard channel data until the fast channel data is sent.
4. The Ethernet data transmission system of the domain type fast protection system of the power distribution network as claimed in claim 3, wherein when the switch of the domain type fast protection system of the power distribution network receives the data, the receiving decision module determines whether the data is local data:
if the local data is the local data, the decision-making component is received to judge whether the data is a complete frame or an interrupted frame, and if the data is the complete frame, the data enters a corresponding fast channel or a standard channel and is sent to the power distribution network domain type fast protection device or the power distribution network domain type fast protection terminal; if the frame is an interrupt frame, carrying out interrupt frame recombination; after the recombination is finished, the data enters a corresponding fast channel or a standard channel and is sent to the power distribution network domain type fast protection device or the power distribution network domain type fast protection terminal;
if the data is not local data, the sending decision module judges the channel type of the data and directly sends the data.
5. The Ethernet data transmission system of the power distribution network domain type fast protection system of claim 4, wherein the receiving/sending decision module applies for and interrupts the standard channel data frame being transmitted by sending the fast channel data frame when the fast channel data frame arrives, repacks the unsent data part of the interrupted data frame, and arranges the repacked data frame at the first position of the standard channel data queue to be transmitted; and when determining that two or more continuous data frames passing through the received standard channel are interrupt data frames, the receiving/sending decision component recombines the two or more interrupt data frames into one standard channel data frame and resends the recombined standard channel data frame.
6. The Ethernet data transmission method of the domain type fast protection system of the power distribution network is characterized in that two data channels, namely a fast channel and a standard channel, are established among a domain type fast protection device of the power distribution network, a domain type fast protection terminal of the power distribution network and a domain type fast protection system switch of the power distribution network, and the corresponding data channel is selected by judging the type of data passing through the domain type fast protection system switch of the power distribution network in real time to realize the fast and effective transmission of the data.
7. The ethernet data transmission method of a domain-based fast protection system for a power distribution website according to claim 6, wherein the fast channel and the standard channel are specifically established in the following steps:
s1: a receiving/sending decision component, a fast channel interface, a standard channel interface and two network test link interfaces are arranged on a switch of a domain type fast protection system of a power distribution website; the fast channel interface and the standard channel interface are connected with the corresponding channel interfaces through the receiving/sending decision-making component to form a switch fast channel and a switch standard channel;
s2: if the data channel of the domain type quick protection device of the power distribution network is connected with the domain type quick protection terminal of the power distribution network through the quick channel of the switch, establishing a quick channel; if the data channel of the domain type quick protection device of the power distribution network is connected with the domain type quick protection terminal of the power distribution network through the standard channel of the switch, a standard channel interface is established;
s3: after the fast channel and the standard channel are established, the type of data passing through the switch of the domain type fast protection system of the power distribution network is judged in real time through the receiving/sending decision-making component, and the corresponding data channel is selected, so that the fast and effective transmission of the data is realized.
8. The ethernet data transmission method of the domain type fast protection system of power distribution network as claimed in claim 7, wherein in step S3, when the switch of the domain type fast protection system of power distribution network needs to transmit data, the transmission decision module determines whether the data is fast channel data:
if the data is the fast channel data, judging whether the network link has the standard channel data which is being transmitted, if so, interrupting the transmission of the standard channel data, and then sending the fast channel data, and if not, directly sending the fast channel data;
if the data is not the fast channel data, judging whether the network link has the fast channel data to wait for sending, if so, waiting for the fast channel data to send, and sending the standard channel data again until the fast channel data is sent.
9. The ethernet data transmission method of the domain type power distribution network rapid protection system of claim 8, wherein in the step S3, when the switch of the domain type power distribution network rapid protection system is receiving data, the receiving decision module determines whether the data is local data:
if the local data is the local data, judging whether the data is a complete frame or an interrupted frame, if the data is the complete frame, entering the corresponding fast channel or standard channel, and sending the data to the corresponding domain-type fast protection device or domain-type fast protection terminal of the power distribution network; if the frame is an interrupt frame, carrying out interrupt frame recombination; after the recombination is finished, the data enters a corresponding fast channel or a standard channel and is sent to a corresponding power distribution network domain type fast protection device or a corresponding power distribution network domain type fast protection terminal;
if the data is not the local data, the sending decision module judges the channel type of the data and directly sends the data.
10. The ethernet data transmission method of the domain type fast protection system of power distribution network station according to claim 9, wherein in step S3, when the fast channel data frame arrives, the receiving/transmitting decision module applies for transmission of the fast channel data frame and interrupts the standard channel data frame being transmitted, and repacks the unsent data portion of the interrupted data frame, and arranges the repacked data frame at the first position of the standard channel data queue to be transmitted; when two or more continuous data frames passing through the received standard channel are determined to be the interruption data frames, the receiving/sending decision module recombines the two or more interruption data frames into one standard channel data frame and resends the recombined standard channel data frame.
CN202011314581.8A 2020-11-20 2020-11-20 Ethernet data transmission system of domain type rapid protection system of power distribution website Pending CN112511466A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011314581.8A CN112511466A (en) 2020-11-20 2020-11-20 Ethernet data transmission system of domain type rapid protection system of power distribution website

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011314581.8A CN112511466A (en) 2020-11-20 2020-11-20 Ethernet data transmission system of domain type rapid protection system of power distribution website

Publications (1)

Publication Number Publication Date
CN112511466A true CN112511466A (en) 2021-03-16

Family

ID=74959232

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011314581.8A Pending CN112511466A (en) 2020-11-20 2020-11-20 Ethernet data transmission system of domain type rapid protection system of power distribution website

Country Status (1)

Country Link
CN (1) CN112511466A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114827013A (en) * 2022-07-04 2022-07-29 广东电网有限责任公司佛山供电局 Data redundancy sending method and related device for domain-type rapid protection system of power distribution network

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009089850A1 (en) * 2008-01-15 2009-07-23 Siemens Aktiengesellschaft Method for operating a communication network, switch, and communications network
CN103095607A (en) * 2013-02-21 2013-05-08 南京磐能电力科技股份有限公司 Implementation method for real-time priority-level Ethernet controller
CN105207353A (en) * 2015-09-08 2015-12-30 国家电网公司 Smart substation station domain protection control system framework
CN107248963A (en) * 2017-05-19 2017-10-13 闫晓峰 Multichannel interchanger, passage referee method and the means of communication based on Ethernet
CN210806851U (en) * 2019-11-18 2020-06-19 曲靖浩晨电力工程设计有限公司 Automatic monitoring system of distribution network

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009089850A1 (en) * 2008-01-15 2009-07-23 Siemens Aktiengesellschaft Method for operating a communication network, switch, and communications network
CN103095607A (en) * 2013-02-21 2013-05-08 南京磐能电力科技股份有限公司 Implementation method for real-time priority-level Ethernet controller
CN105207353A (en) * 2015-09-08 2015-12-30 国家电网公司 Smart substation station domain protection control system framework
CN107248963A (en) * 2017-05-19 2017-10-13 闫晓峰 Multichannel interchanger, passage referee method and the means of communication based on Ethernet
CN210806851U (en) * 2019-11-18 2020-06-19 曲靖浩晨电力工程设计有限公司 Automatic monitoring system of distribution network

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
佟为明等: "交换式工业以太网优先级调度机制的研究", 《仪器仪表学报》 *
熊刚等: "智能变电站网络交换机技术探讨", 《中国电业(技术版)》 *
肖荣国等: "一种广域智能保护主机的硬件结构", 《黑龙江电力》 *
辛建波: "基于优先级标签的变电站过程层交换式以太网的信息传输方案", 《电网技术》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114827013A (en) * 2022-07-04 2022-07-29 广东电网有限责任公司佛山供电局 Data redundancy sending method and related device for domain-type rapid protection system of power distribution network
CN114827013B (en) * 2022-07-04 2023-02-17 广东电网有限责任公司佛山供电局 Data redundancy sending method and related device for domain type rapid protection system of power distribution website

Similar Documents

Publication Publication Date Title
US10959136B2 (en) Radio access network control method and radio access network
US9185036B2 (en) Method and apparatus for flow control of data in a network
KR100823785B1 (en) Method and system for open-loop congestion control in a system fabric
FI91695C (en) Procedure for prioritizing traffic between local networks that are connected via a backbone network
US8045452B2 (en) Method for handling fault between an egress label switching router and a data device connected therewith
US20060034328A1 (en) End-to-end prioritized data delivery on networks using IP over frame relay
CN101510882A (en) Method and apparatus for learning medium access control address
CN102348241A (en) Home node base station and bandwidth allocation method thereof
EP1323326B1 (en) Mobile access networks
CN101146050B (en) Frame relaying packet transmission method and device
CN103299675A (en) Adaptive relative bitrate manager for TCP depending flow control
CN112511466A (en) Ethernet data transmission system of domain type rapid protection system of power distribution website
CN105704068B (en) Service mixing centralized processing method and device
CN101909316B (en) Operation maintenance method and system
US20200382436A1 (en) Packet processing device and network system
US20100158033A1 (en) Communication apparatus in label switching network
JP5722171B2 (en) COMMUNICATION SYSTEM, ACCESS POINT, SERVER DEVICE, AND COMMUNICATION CONTROL METHOD
CN110475288B (en) Method, device and system for transmitting signaling message of satellite network preferentially
JP2015037209A (en) Packet scheduler, communication network, and packet scheduling method
KR100610221B1 (en) Data divergence apparatus and method thereof in wibro
JPH0341845A (en) Packet transmission system
KR100266259B1 (en) Apparatus for transfering data in frame relay module
CN117857475A (en) Data transmission scheduling method and system for Ethernet train control network
CN112511452A (en) Method and system for automatically adjusting rate of L2VPN
KR100258259B1 (en) Frame Relay Module in ISDN Switching System

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

Application publication date: 20210316

RJ01 Rejection of invention patent application after publication