CN107682192B - County power supply station data communication method - Google Patents
County power supply station data communication method Download PDFInfo
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- CN107682192B CN107682192B CN201710926959.1A CN201710926959A CN107682192B CN 107682192 B CN107682192 B CN 107682192B CN 201710926959 A CN201710926959 A CN 201710926959A CN 107682192 B CN107682192 B CN 107682192B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/04—Network management architectures or arrangements
- H04L41/044—Network management architectures or arrangements comprising hierarchical management structures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/44—Star or tree networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/44—Star or tree networks
- H04L2012/445—Star or tree networks with switching in a hub, e.g. ETHERNET switch
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a county power supply station data communication method, which comprises the steps of establishing a PTN network in a 35kV or above transformer substation and a county dispatching station in the county, deploying data network equipment in a power supply station and accessing the PTN network of a peripheral transformer substation in a nearby principle to realize data communication, wherein the PTN network is used as a bearing layer of data service communication of the county power supply station and is networked according to a ring network structure mode to provide ETREE, ELINE and ELAN service modes; the data network equipment deployed for power supply is a three-layer Ethernet switch, has a routing switching function and a remote maintenance management function, and is used as access layer equipment of a county company data network; by adopting the scheme, the invention has the advantages of advanced technology, low equipment cost, low implementation difficulty and low maintenance cost, greatly meets the requirement of county data communication network development on network security, bearing capacity and economy, and has good market application value.
Description
Technical Field
The invention relates to the technical field related to power supply station data communication, network management and power supply service, in particular to a county power supply station data communication method.
Background
With the deep construction of a 'three-set five-large' system of a national power grid company and the extension of rural and electric assets of a county-level power supply company, SG-ERP, office automation, comprehensive video monitoring service of a transformer substation, 95598 service, operation monitoring service, video conference, communication operation informatization and other service application systems cover a power supply station (business hall), the bandwidth requirement of a data network is increased, data services basically belong to convergent type service, the service types point to be mainly converged to nodes such as county dispatching and branch offices by accessing the service from the transformer substation and the business outlets in a centralized manner, no transverse service exists in an access layer site, data forwarding is mainly realized by the access layer-core or convergent layer, and the service dispatching is realized on the county dispatching and convergent node level, so that various service interaction functions are realized. According to prediction of communication network rolling planning in 2015-plus 2020, service flow of 20 and more power supply stations is 15.9M, service flow of less than 20 power supply stations is 10.7M, service flow of business hall is 9.9M, a county communication transmission network is relatively weak, transmission capacity of SDH transmission network equipment is only 155M-622M, transmission bandwidth is insufficient, operation year is long, and service access requirements of the power supply stations (business halls) cannot be met. Therefore, most of county power supply stations (business halls) adopt leased public network operator channels or optical fiber transceivers, PDH, HUB deconcentrators, simple switches and other equipment for data communication, the communication bandwidth is only 2M, the equipment of part of power supply stations (business halls) has low operation reliability, cannot realize remote maintenance, does not support division of VLAN, and has poor reliable access capability of multiple services. In summary, currently, the data communication method adopted by the county power supply station (business hall) cannot meet the actual requirements of service access of the county power supply station, regardless of transmission bandwidth or safety and reliability.
Disclosure of Invention
The invention aims to provide a novel county power supply station data communication method.
In order to achieve the purpose, the invention adopts the following technical scheme: a method for data communication of a county power supply station comprises the steps of establishing a PTN network in a 35kV or above transformer substation and county dispatching of the county power supply station, deploying data network equipment in the power supply station and accessing the PTN network of the peripheral transformer substation in a nearby mode to realize data communication,
the PTN network is used as a bearing layer of data service communication of a county power supply station, networking is carried out according to a ring network structure mode, and ETREE, ELINE and ELAN service modes are provided;
the data network equipment deployed by power supply is a three-layer Ethernet switch, has a routing switching function and a remote maintenance management function, and is used as access layer equipment of a county company data network; 1 ETREE service channel is opened between the local department of a county company and a 35kV and above transformer substation accessed by power supply by utilizing a PTN network; the method comprises the steps that an ETREE service channel which is opened by a PTN network is utilized to interconnect a three-layer Ethernet switch of a power supply station and a core data network switch of the local department of a county company, so that the core switch and an access switch are networked in a star structure;
the network management of the PTN network is configured with 1 set of centralized network managers at the local communication core machine room of the province company and the second convergent point of the province company according to the centralized network management and the dual-computer remote hot standby mode, and PTN equipment is managed in a unified way; a county company configures 1 set of network management maintenance terminals; a network management channel of a county company adopts a PTN network ELINE service channel mode.
Preferably, the three-layer ethernet switch deployed for power supply is connected to PTN network equipment deployed in a substation of 35kV or more through an optical fiber in the near field in an optical port manner.
Preferably, the PTN equipment and the three-layer Ethernet switch are set according to a unified planning address, and hierarchical management is performed by adopting unified distribution authority, so that remote maintenance of the equipment is realized.
Preferably, the PTN network adopts a master-slave frequency synchronization mode, and a master reference clock is taken from a core PTN device master clock; the device has an IEEE 1588V 2 time synchronization interface and function; the network protection adopts the Wrapping ring network protection and the 1:1 linear protection mode.
Compared with the prior art, the technical scheme has the advantages of advanced technology, low equipment cost, low implementation difficulty and low maintenance cost, greatly meets the requirement of county-area data communication network development on network security, bearing capacity and economy, and has good market application value.
Drawings
Fig. 1 is a schematic diagram of a data communication connection method according to the present invention.
Detailed Description
In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As shown in fig. 1, one embodiment of the present invention is a method of data communication of the county power supply station, building a PTN network in a 35kV or above transformer substation and county dispatching in the county, deploying data network equipment in a power supply station and accessing the PTN network of the peripheral transformer substation in a nearby mode to realize data communication, describing a certain power supply station (business hall as an example), firstly, a set of convergent PTN equipment 7 is installed at the local 3 of a county company, a set of access PTN equipment 6 is respectively installed at 35kV or above transformer substations 2 of the county, all PTN equipment (6 and 7) are networked by utilizing an optical cable in a ring network structure, the transmission bandwidth of the ring network can be measured and calculated according to the actual situation of county companies, planning a target net rack and a service flow direction by combining the current backbone communication transmission network according to the service requirement conditions of various communication sites, and predicting and summarizing service bandwidths on various power transformation sites, office places and main network sections year by year.
The prediction method adopts a method combining visual prediction and elastic coefficient, takes the section from headquarters to a certain area as a reference surface, and adopts a formula: b' × N × Φ 1 × Φ 2;
wherein: b' -unit bandwidth for different services;
n is the number of service circuits;
phi 1-redundancy coefficient (phi 1>1) refers to an elastic coefficient required for reserving a backup channel and developing a space for a service, except that the data communication network phi 1 is 1 in the calculation (mainly considering that the data communication network has an automatic routing function and has strong protection performance, and the data communication network fully considers the redundancy space), and the rest of services phi 1 are 2 (mainly considering that the real-time performance and reliability requirements of other services are high, and a redundancy channel is opened for the services when a circuit is generally configured);
phi 2-disaster tolerance coefficient (phi 2>1) refers to the elastic coefficient required by the circuit as its detour route to share the service flow carried by the fault circuit when a communication network accident occurs in other direction circuits (since the service types in all directions are basically the same and the quantity difference is not large, the same coefficient is taken for the same service during estimation), in this calculation, except that the data communication network phi 2 is 1.5 (mainly considering that the service quality requirements of various services carried by the data communication network are different and the bandwidth requirement of critical service is preferentially ensured when a network disaster occurs), the rest of the service phi 2 is 2 (mainly considering that the service is closely related to company production management and has high safety requirement and the detour route must be ensured when the network disaster occurs).
A three-layer Ethernet switch 5 is deployed and installed in a county power supply station (business hall) 1, and VLAN division is carried out on an electrical interface on the three-layer Ethernet switch 5 according to the service classification condition of the power supply station.
An optical interface on a convergent PTN device 7 in the local 3 of a county company opens 1 ETREE service channel to an optical interface on an access PTN device 6 in a transformer substation 2 of 35kV or more in a county area, the bandwidth is set according to a uniform planned bandwidth, and the set bandwidth value is less than or equal to the maximum transmission bandwidth of the established PTN network.
An optical interface in a three-layer Ethernet switch 5 is deployed and installed in a county power supply station (business hall) 1 and is connected with an optical interface of an ETREE service channel opened on an access type PTN device 6 in a transformer substation 2 of 35kV or more in county area through an optical fiber according to the principle of near access, so that communication between the county power supply station (business hall) 1 and the transformer substation 2 of 35kV or more in county area is realized.
The office computers 4 in the county power supply station (business hall) 1 are connected with an electrical interface on the three-layer Ethernet switch 5 through the ultra-five network cables, the connection principle is carried out according to the VLAN division set on the three-layer Ethernet switch 5, and the office computers 4 with different purposes are connected to the electrical interfaces of the corresponding VLANs.
The convergent PTN device 7 in the local 3 of the county company is connected with the county company information network core switch 8 through optical fibers, that is, an optical interface on the county company information network core switch 8 must be connected with an optical interface on the convergent PTN device 7, on which an ETREE service channel has been made, so as to realize interconnection and intercommunication between a PTN network bearer layer and a data network core switch.
According to the IP number, VLAN number and routing information which are planned in a unified mode, relevant data production is carried out on a county information network core switch 8, a three-layer Ethernet switch 5 and an office computer 4 respectively, and data communication from a county power supply station (business hall) 1 to a county company headquarter 3 can be achieved after debugging of a service channel is completed.
The technical features mentioned above are combined with each other to form various embodiments which are not listed above, and all of them are regarded as the scope of the present invention described in the specification; also, modifications and variations may be suggested to those skilled in the art in light of the above teachings, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. A method for data communication of a county power supply station is characterized in that a PTN network is established in a 35kV or above transformer substation and county dispatching of the county power supply station, data network equipment is deployed in the power supply station, and the PTN network of the peripheral transformer substation is accessed to the power supply station in a nearby principle to realize data communication;
the data network equipment deployed by power supply is a three-layer Ethernet switch, has a routing switching function and a remote maintenance management function, and is used as access layer equipment of a county company data network; 1 ETREE service channel is opened between the local department of a county company and a 35kV and above transformer substation accessed by power supply by utilizing a PTN network; the method comprises the steps that an ETREE service channel which is opened by a PTN network is utilized to interconnect a three-layer Ethernet switch of a power supply station and a core data network switch of the local department of a county company, so that the core switch and an access switch are networked in a star structure;
the network management of the PTN network is configured with 1 set of centralized network managers at the local communication core machine room of the province company and the second convergent point of the province company according to the centralized network management and the dual-computer remote hot standby mode, and PTN equipment is managed in a unified way; a county company configures 1 set of network management maintenance terminals; a network management channel of a county company adopts a PTN network ELINE service channel mode;
the looped network transmission bandwidth can be measured and calculated according to the actual operation of a county company, and the current backbone communication transmission network is combined to plan a target network frame and a service flow direction according to the service demand conditions of various communication sites, so that the service bandwidths on various power transformation sites, office places and main network sections are predicted and summarized year by year; the prediction method adopts a method combining visual prediction and elastic coefficient, takes the section from headquarters to a certain area as a reference surface, and adopts a formula: b' × N × Φ 1 × Φ 2; wherein: b' -unit bandwidth for different services; n is the number of service circuits; phi 1 is a redundancy coefficient, which means an elastic coefficient required for reserving a backup channel and developing a space for a service; phi 2 is a disaster tolerance coefficient, which means that when a communication network accident occurs to circuits in other directions, the circuit is used as a circuitous route thereof to share the elastic coefficient required by the service flow borne by the fault circuit.
2. The county power supply station data communication method according to claim 1, wherein the three-layer Ethernet switch deployed in the power supply station is connected to PTN network equipment deployed in a 35kV or above substation nearby through optical fibers in an optical port mode.
3. The county power supply station data communication method according to claim 1, wherein the PTN equipment and the three-layer Ethernet switch are set according to a uniform planned address, and are hierarchically managed by adopting uniform distribution authority, so that remote maintenance of the equipment is realized.
4. The county power supply station data communication method according to claim 1, wherein the PTN network adopts a master-slave frequency synchronization mode, and a master reference clock is taken from a core PTN device master clock; the device has an IEEE 1588V 2 time synchronization interface and function; the network protection adopts the Wrapping ring network protection and the 1:1 linear protection mode.
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| CN110418403B (en) * | 2019-07-24 | 2021-07-02 | 云南电网有限责任公司红河供电局 | 35kV transformer substation data recording system and method based on wireless network |
| CN111294244A (en) * | 2020-02-18 | 2020-06-16 | 国家电网有限公司 | Optimization method and device of network management network |
| CN114079631A (en) * | 2020-08-10 | 2022-02-22 | 中国移动通信集团浙江有限公司 | PTN networking and base station service protection method, device, equipment and storage medium |
| CN113055221B (en) * | 2020-12-15 | 2022-12-23 | 国网冀北电力有限公司经济技术研究院 | Typical bandwidth demand measuring and calculating method for power communication network transmission network based on region division |
| CN113141343A (en) * | 2021-03-06 | 2021-07-20 | 广东信通通信有限公司 | Industrial Ethernet exchange protocol design method suitable for power distribution communication network |
| CN115296730B (en) * | 2022-09-29 | 2022-12-06 | 深圳市子恒通讯设备有限公司 | Optical fiber communication device and method |
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| US8577822B2 (en) * | 2008-09-25 | 2013-11-05 | University Of Iowa Research Foundation | Data-driven approach to modeling sensors wherein optimal time delays are determined for a first set of predictors and stored as a second set of predictors |
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