CN217307339U

CN217307339U - Distributed distribution station terminal based on multiport forwarding communication

Info

Publication number: CN217307339U
Application number: CN202122573756.3U
Authority: CN
Inventors: 陈建坤; 沈敬人; 吕沭阳; 葛夕武; 毛祯
Original assignee: Nanjing Anengjie Electric Power Industry Co Ltd; Nanjing Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
Current assignee: Nanjing Anengjie Electric Power Industry Co Ltd; Nanjing Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-08-26
Anticipated expiration: 2031-10-25

Abstract

The utility model discloses a distributed distribution station terminal based on communication is forwardded to multiport is applied to and gathers switching data, on-off control and line fault processing in the distribution lines. The interval units are used for sequentially carrying out data acquisition and control on corresponding switches, each interval unit is provided with an interval port, and the interval ports are used for transmitting data to the public unit and receiving the public unit instruction. The public unit comprises a plurality of pairs of inter-ports and a plurality of pairs of public ports, the inter-ports are used for receiving data and sending instructions, and the public ports are used for transmitting the data of the interval units to the master station and receiving the instructions of the master station. The master station comprises a plurality of pairs of public ports for receiving data and sending instructions. The terminal communication mode of the power distribution station is optimized, large-point table configuration is cancelled, the public unit only transparently forwards the message, and the master station regards the interval unit as an independent terminal, so that the communication logic requirement on the public unit is reduced, the field plug-and-play of the interval unit is realized, and the operation and maintenance are simplified.

Description

Distributed distribution station terminal based on multiport forwarding communication

Technical Field

The utility model belongs to the intelligent power distribution network field especially relates to a distributed power distribution station terminal based on communication is forwardded to multiport.

Background

The communication mode of the terminal of the current distributed power distribution station adopts a large data point table mode, a public unit communicating with a main station is provided with a large data point table, and the data point table comprises all switch data information in the power distribution station; meanwhile, the public unit is additionally provided with a plurality of main protocols which are respectively communicated with the interval unit, and the data of the interval unit are received, analyzed, processed and filled into a database. Aiming at functional communication such as parameter configuration, file reading and writing, program upgrading and the like, a plurality of problems need to be solved: the synchronization problem between the interval unit parameters and the public unit after local configuration; after the master station configures the interval unit parameters, the public unit fails to configure synchronization; merging the files of a plurality of interval units to a public unit into a time sequencing problem of each event of the same file; the problem of how to upgrade after the upgrading interval unit program of the master station fails, and the like, the problems need complete communication logic support, and the requirements on the master station and the public unit are higher, so that the high-level functions are not realized by the master station and the terminals of the distributed stations during field communication at present.

The disadvantage of the large-point table communication mode of the terminal of the distributed station is as follows: 1) the public unit needs to uniformly process the data of all the interval units in the ring main unit, and has higher requirements on the database and the operation performance of the public unit device; 2) when any interval unit is replaced, the parameters of the public unit need to be verified again, point table debugging needs to perform point-to-point debugging on all data of the public unit, and the maintenance workload is large; 3) advanced functions such as parameter configuration, file reading and writing, program upgrading and the like of the terminal of the station cannot be realized.

SUMMERY OF THE UTILITY MODEL

The technical purpose of the utility model is to provide a distributed distribution substation terminal based on communication is forwardded to multiport to solve the operating performance requirement height, maintain the technical problem such as engineering volume is big.

In order to solve the above problem, the technical scheme of the utility model is that: the utility model provides a distributed distribution substation terminal based on communication is forwardded to multiport, is applied to electric quantity and the collection of state quantity data and the control of switch and distribution lines fault handling in the distribution lines, includes: the system comprises a main station, a common unit and a spacing module.

The common unit is respectively connected with the main station and the interval module through signals.

The interval module comprises a plurality of interval units, the interval units are used for sequentially carrying out electric quantity and state quantity data acquisition and switch control on corresponding switches, each interval unit is provided with an interval port, and the interval ports are used for receiving a switch control command and a fixed value setting command of the public unit and transmitting the acquired electric quantity and state quantity data, fault events, fixed values and files to the public unit. Wherein, the electric quantity and state quantity data are telemetering and remote signaling data.

The public unit comprises a plurality of pairs of ports and a plurality of pairs of public ports, the plurality of pairs of ports correspond to the plurality of interval ports one to one and are used for interacting the electric quantity and state quantity data, fault events, fixed values, files and switch control of the interval units.

The master station comprises a plurality of pairs of public ports, the plurality of pairs of public ports are in one-to-one correspondence with the plurality of pairs of main ports, and the public ports are used for interacting the electric quantity and state quantity data, fault events, fixed values, files and switch control of the interval units.

Further preferably, the common unit further comprises a common port, and the master station further comprises a master port, wherein the common port is in signal connection with the master port and is used for exchanging four-remote data, fault events, fixed values and files of the common unit to the master station.

TCP link channels are arranged between the interval ports and the inter-pair ports, between the public port and the main-pair port and between the public port and the main port, and are used for realizing signal transmission.

Specifically, the port numbers of the several bay ports are 24041, 24042, 24043 … … 2404X, respectively, where X is the number of bay units.

The port numbers corresponding to the inter-pair ports, the main pair ports and the public pair ports are 24041, 24042, 24043 … … 24024X respectively.

The plurality of interval ports with the same port number are sequentially in signal connection with the plurality of pairs of ports, and the plurality of pairs of main ports with the same port number are sequentially in signal connection with the plurality of pairs of public ports.

Wherein, the port numbers of the public port and the main port are 2404.

Further preferably, a communication room and a switch are also included.

The common unit is in signal connection with the master station via a communication room.

The interval module is in signal connection with the public unit through the exchanger.

Further preferably, the distribution system further comprises an interval secondary module, wherein the interval secondary module is in signal connection with the interval module and is used for collecting current/voltage information in the current distribution line.

Further preferably, the device further comprises a PT chamber, and the PT chamber is used for detecting the bus voltage.

Further preferably, the power supply module is further included, and the power supply module is used for providing power support for the terminal of the decentralized power distribution station.

The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:

1) the utility model discloses a public unit only realizes the 104 conventions of self data, alleviates public unit's operating load.

2) When the interval unit is replaced, only the IP of the replacement interval unit is modified, and the parameters of the public unit do not need to be modified, so that the plug-and-play function of the interval unit is realized.

3) In the operation and maintenance process, after the interval units are replaced, all data in the ring main unit do not need to be debugged again, only the replaced interval unit data need to be debugged, and the operation and maintenance engineering quantity is greatly reduced.

4) The master station can sense the communication of the interval units in real time, and can immediately sense and carry out TCP reconnection when the communication of the interval units is abnormal, so that the master station is not required to carry out logic processing on the data of the interval units according to the remote signaling of the communication state.

5) Simplifying communication logics of station terminal parameter configuration, file reading and writing, program upgrading and the like, and enabling the high-level functions of the 104 protocol to be practical on site.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention.

Fig. 1 is a block diagram of a terminal of a distributed power distribution station based on multiport forwarding communication according to an embodiment of the present invention;

fig. 2 is a schematic view of a communication scheme of a terminal of a distributed distribution substation based on multiport forwarding communication according to an embodiment of the present invention.

Description of the reference numerals

101: a communication room; 102: a switch; 103: a common unit; 104: a spacing module; 105: a power supply module; 106: an interval secondary module; 107: a PT chamber; 108: and (4) a master station.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will refer to the accompanying drawings to describe specific embodiments of the present invention. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.

For the sake of simplicity, only the parts relevant to the present invention are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".

The present invention provides a distributed distribution substation terminal based on multiport forwarding communication, which is described in further detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims.

Examples

Referring to fig. 1, the present embodiment provides a distributed distribution substation terminal based on multi-port forwarding communication, which is applied to collecting data of electrical quantities and state quantities of switches in a distribution line, controlling the switches, and processing line faults. The embodiment is the key equipment of intelligent power distribution network, gathers the electric quantity and the state quantity data of switch among the distribution lines, and control switch's operation, line fault's processing communicates with main website 108 through distribution automation 104 stipulations, realizes functions such as state monitoring, fault handling, load operation to the circuit of switch place. In a power distribution network site, a station terminal is generally deployed in a power distribution station, a power distribution room, a ring main unit and other scenes, and all switches in the scenes need to be processed.

The embodiment has the advantages of being small in structure, easy to install, plug and play and the like, is the main trend of terminal development of the current station, and the core of the embodiment is composed of a public unit 103 and an interval module 104, wherein the interval module 104 comprises a plurality of interval units, and the interval units are used for sequentially collecting electric quantity and state quantity data of corresponding switches and controlling the switches. The plurality of interval units are provided with an interval port, and the interval port is used for receiving a switch control instruction and a fixed value setting instruction of the public unit, and transmitting collected electric quantity and state quantity data, fault events, fixed values, files and other information to the public unit 103. In this embodiment, only one IP is allocated to the communication network, that is, the common unit 103 has a unique IP address in the distribution network line, so that the common unit 103 collects data of all the interval units and communicates with the master station 108, and the common unit 103 needs to process functions of four-remote data, parameter configuration, file reading and writing, program upgrading, and the like of the interval units.

Referring to fig. 2, in particular, the present implementation is from a signal transmission perspective, the common unit 103 is in signal connection with the master station 108 (distribution automation master station) and the bay module 104, respectively. The master station 108 and the common unit 103 establish a plurality of TCP link channels with the common unit 103 according to the port numbers, the master station 108 is provided with a plurality of pairs of common ports and master ports, and the master station 108 determines the current communication terminal data according to the port numbers of the ports. The common unit 103 is provided with a plurality of pairs of main ports, a plurality of pairs of inter ports and a common port. The common unit 103 further establishes a plurality of TCP link channels with the interval units according to the port numbers, and one interval module 104 includes a plurality of interval units, each interval unit being provided with an interval port. The port number of each interval unit data communication is 2404X (X is 1.. n, n is the number of interval units), the port numbers corresponding to the plurality of pairs of inter-ports, the plurality of pairs of main ports and the plurality of pairs of public ports are 24041, 24042 and 24043 … … 24024X respectively, that is, the inter-ports with the same port number and the interval ports with the same port number realize TCP link channel connection, and the main-ports with the same port number and the public-ports with the same port number realize TCP link channel connection. Exceptionally, the port numbers of the main port and the public port are 2404, and the main port and the public port realize TCP link channel connection. The port of the master station 108 is a 104 protocol client port, the public unit 103 and the interval module 104 are 104 protocol server ports, the public unit 103 only realizes a 104 protocol of self data, the operation load of the public unit 103 can be reduced, communication logics such as end parameter configuration, file reading and writing, program upgrading and the like can be simplified, and high-level functions of the 104 protocol are put into practical use on site.

Specifically, the master station 108 collects the four-remote data, failure event, fixed value, file of the common unit 103 itself from the common port through the master port of the 2404 port number. The master station 108 receives four-remote data (four remote includes telemetry, remote signaling, remote control and remote pulse, and the data acquisition of electrical quantity and state quantity belongs to telemetry and remote signaling data), fault events, fixed values, files and the like of the X-th interval unit through a male port with a port number of 2404X. In the following implementation, the master station 108 transmits a control signal to the common unit 103 through the public port, and the control signal is transmitted through the corresponding public port for the interval unit to be acquired, for example, to acquire the sampled electrical quantity and state quantity data of the 8 th interval unit, the control signal is output from the public port with the port number 24048 of the master station 108, and is received by the common unit 103. After receiving the control signal from the master station 108, the common unit 103 sends the message to the corresponding TCP link through the port transparent forwarding policy, and sends the message to the gap unit, for example, if the received control signal is sent out to the public port with port number 24048, the common unit 103 also outputs the message through the inter-pair port with port number 24048, and correspondingly, the eighth gap unit receives the message. And the interval unit processes the received message, attaches the data of the electric quantity and the state quantity, the fault event, the fixed value and the file and returns the message, wherein the message comprises a transmitted control signal and a data acquisition part. Furthermore, the inter-pair port of the common unit 103 receives the electrical quantity and state quantity data, the fault event, the fixed value, the file and the like, transmits the received electrical data to the corresponding TCP channel through the port transparent forwarding policy, and transmits the electrical data to the master station 108, for example, the inter-pair port with the port number 24048 receives the electrical quantity and state quantity data, and the master port with the port number 24048 is used for uploading, thereby completing the data communication between the master station 108 and the terminal of the distributed distribution substation.

Due to the adoption of the embodiment, when the interval unit is replaced, only the IP of the replacement interval unit is required to be modified, and the parameters of the public unit 103 do not need to be modified, so that the plug-and-play function of the interval unit is realized. In the operation and maintenance process, after the interval units are replaced, all data in the ring main unit do not need to be debugged again, only the replaced interval unit data need to be debugged, and the operation and maintenance engineering quantity is greatly reduced. The master station 108 can sense interval unit communication in real time, when the interval unit communication is abnormal, the master station 108 can immediately sense and carry out TCP reconnection, and the master station 108 is not required to carry out logic processing on interval unit data according to communication state remote signaling.

Referring to fig. 1, it is further preferred that a communication room 101 and a switch 102 are also included. The public unit 103 is used for exchanging signals with the master station 108 through the communication room 101, that is, control signals are transmitted to the public unit 103, and the master station 108 receives data of electric quantity and state quantity of the public unit 103, fault events, fixed values, files and the like and four-remote data of the master station. The public unit 103 is used for signal exchange with the interval unit via the switch 102, that is, the public unit 103 downloads messages to the interval unit, and the interval unit uploads electric quantity and state quantity data, fault events, fixed values, files and the like to the public unit 103.

Preferably, referring to fig. 1, a compartmentalized secondary module 106, a PT cell 107, and a power module 105 are also included. The interval secondary module 106 is respectively in signal connection with the interval module 104, the power supply module 105 and the PT room 107, and is used for acquiring current/voltage information in the current distribution line. The PT chamber 107 is in signal connection with the power supply module 105 and the partitioned secondary module 106, and is used for detecting a bus voltage and implementing a protection function. The power module 105 is used for power support of each module or unit of the present embodiment.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.

Claims

1. The utility model provides a distributed distribution substation terminal based on communication is forwardded to multiport, is applied to electric quantity and the collection of state quantity data and control and the distribution lines fault handling of gathering the switch in the distribution lines, its characterized in that includes: the system comprises a main station, a common unit and an interval module;

the public unit is respectively in signal connection with the master station and the interval module;

the interval module comprises a plurality of interval units, the interval units are used for sequentially carrying out data acquisition and switch control on the electrical quantity and state quantity on corresponding switches, each interval unit is provided with an interval port, and the interval ports are used for receiving a switch control command and a fixed value setting command of a public unit and simultaneously transmitting the acquired data of the electrical quantity and state quantity, fault events, fixed values and files to the public unit; wherein the electrical quantity and state quantity data are telemetering and remote signaling data;

the public unit comprises a plurality of pairs of main ports, a plurality of pairs of inter-ports and a plurality of pairs of public ports, wherein the plurality of inter-ports correspond to the plurality of interval ports one to one and are used for interacting the electrical quantity and state quantity data, fault events, fixed values, files and switch control of the interval units;

the master station comprises a plurality of pairs of public ports, the pairs of public ports correspond to the pairs of main ports one by one and are used for interacting the electric quantity and state quantity data, fault events, fixed values, files and switch control of the interval units.

2. The multi-port forwarding communication based decentralized power distribution substation terminal according to claim 1, wherein said common unit further comprises a common port, and said master station further comprises a master port, said common port being in signal connection with said master port for interacting with four-remote data, fault events, ratings, files of said common unit to said master station.

3. The multi-port forwarding communication based decentralized distribution substation terminal according to claim 2, wherein TCP link channels are provided between said bay port and said pair of bay ports, between said pair of public ports and said pair of main ports, and between said public port and said main ports, for enabling signal transmission.

4. The multi-port forwarding communication based decentralized distribution substation terminal according to claim 3, wherein the number of port numbers of several said bay ports is 24041, 24042, 24043 … … 2404X, respectively, where X is the number of said bay units;

the port numbers corresponding to the plurality of inter-pair ports, the plurality of main pair ports and the plurality of public pair ports are 24041, 24042, 24043 … … 24024X respectively;

the plurality of interval ports with the same port number are sequentially in signal connection with the plurality of inter-pair ports, and the plurality of main-pair ports with the same port number are sequentially in signal connection with the plurality of male-pair ports.

5. The multi-port forwarding communication based decentralized distribution substation terminal according to claim 3, wherein the port numbers of the common port and the master port are each 2404.

6. The multi-port forwarding communication based decentralized distribution substation terminal according to claim 1, further comprising a communication room and a switch;

the public unit is in signal connection with the master station through the communication room;

the interval module is in signal connection with the common unit through the switch.

7. The multi-port forwarding communication based decentralized distribution substation terminal according to claim 1, further comprising a bay secondary module in signal connection with said bay module for collecting current/voltage information on the current distribution line.

8. The multi-port forwarding communication based decentralized power distribution substation terminal according to claim 1, further comprising a PT room for detecting bus bar voltage.

9. The multi-port forwarding communication based decentralized substation terminal according to claim 1, further comprising a power module for providing power support for the decentralized substation terminal.