CN104201781A - Small-power wireless private network system applied to smart grid - Google Patents
Small-power wireless private network system applied to smart grid Download PDFInfo
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- CN104201781A CN104201781A CN201410457995.4A CN201410457995A CN104201781A CN 104201781 A CN104201781 A CN 104201781A CN 201410457995 A CN201410457995 A CN 201410457995A CN 104201781 A CN104201781 A CN 104201781A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y02E60/7853—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
Abstract
The invention discloses a small-power wireless private network system applied to a smart grid. A deployment mode of the system can be fused with an optical fiber, carrier wave or GPRS (general packet radio service) mode. A specific system fusion mode includes that a distribution network automation DSCADA system is communicated with a GPRS network through a data acquisition and management front end via a VPN (virtual private network) private line, and the GPRS network is communicated with power distribution network terminals via wireless gateways; or the distribution network automation DSCADA system is communicated with the power distribution network terminals through the wireless gateways via optical-fiber network data communication terminals; or the distribution network automation DSCADA system is in data communication with the power distribution network terminals through the wireless gateways via an optical-fiber network data system.
Description
Technical field:
The present invention relates to a kind of electric power small wireless private network system that is applied to intelligent grid.
Background technology:
Along with going deep into of intelligent grid construction, increasing intelligent equipment need to be linked in the synthesis scheduling system of intelligent grid, the general requirement that the strong intelligent grid of State Grid Corporation of China is built, be to guarantee that intelligent grid construction specification advances in order, realize power consumer power information acquisition system construction " all standing, full collection, full pre-payment ".Particularly along with the construction of the unified platform system of the marketing of intelligent grid, distribution, dispatching patcher deeply, about battalion's each intrasystem terminal of auxiliary tone and communication system, higher requirement has been proposed in speed, reliability, real-time, compatibility.
Intelligent grid communication system is mainly comprised of optical fiber telecommunications system, carrier communication system and three kinds of communication modes of wireless communication system at present, wherein communication mainly refers to the communication being comprised of wireless public networks such as GPRS and 3G, and the collection that this kind of communication mode applied to marketing system on a large scale is at present copied in, two distant distribution terminal systems distant with part one.
In existing wireless public network communication system, there is the problem of the multiple deficiencies such as charging expense is higher, wireless signal covering is not comprehensive.Equally, in optical fiber telecommunications system, existing construction to lay the problems such as cost is higher, in some specific region, is not the communication system solution of optimal extensive laying networking.In addition, in distribution communication system, often the medium voltage network side of equipment laying and 10KV, is a more thorny system scheme to the low pressure power taking of equipment.
In the face of the more thorny technical problem in above-mentioned intelligent grid, adopt micropower wireless system comparatively suitable as the communication solution of the specific region in smart electric grid system, mainly solve the following problem in smart electric grid system:
Lay cost and difficulty problem: in intelligent grid communication system, the laying of communication line is a more scabrous construction difficult problem always, low-power wireless system adopts short-range power amplification, the region that can realize communication system covers, in a region, adopt communication, do not need to lay communication line.
Wireless public network can not all standing problem: wireless public network is used the wireless public network of telecom operators, in remote areas, and partially enclosed space, wireless public network coverage is incomplete, causes numerous users and power dispatching data not to upload in time.Adopt micro power radio communication system, build region wireless private network, the timely and effective transmission of wireless data in support area.
The problem that Reliability of Wireless Communication is not high: owing to adopting the communication system of wireless public network, due to shared teledata transmission network, be comparatively easy to caught or disturb by the user that has nothing to do in a large number, have larger potential safety hazard.Adopt micro power radio communication mode, internal system integrated security is encrypted and Safety Redundancy system, can be from the communication security of physical layer and network layer guarantee data with reliable.
Distribution network systems mesolow power taking problem: in remote 10KV distribution region, the power taking problem of communication equipment and terminal equipment is the larger technical barrier that puzzlement system is promoted always.Adopt the wireless communication system of low-power consumption, by reducing power consumption and the mode of dormancy initiatively, can so that the power consumption of equipment in mw level, part field by using battery powered mode can maintain the equipment operation of long period.
In sum, adopt the region power communication private network that the communication mode of low-power wireless builds can effectively make up the insoluble system difficult problem in intelligent grid communication system, for the communication system of intelligent grid builds, provide a kind of newer communication mode.
Summary of the invention:
For overcoming the defect of prior art, the object of the present invention is to provide a kind of electric power small wireless private network system that is applied to intelligent grid, be applicable to that data throughout is less, networking investment is less, network security requirement is higher, the frequent applications of changing power supply or charging of inconvenience.
Technical solution problem of the present invention adopts following technical scheme:
Be applied to the electric power small wireless private network system of intelligent grid, the deployment way of system can merge with optical fiber, carrier wave or GPRS mode, and concrete system amalgamation mode is:
Distribution automation DSCADA system adopts VPN special line and GPRS network communication by data capture management front end, and GPRS network is communicated by letter with electricity consumption distribution network terminal through each radio network gateway; Or,
Distribution automation DSCADA system is communicated by letter with electricity consumption acquisition terminal by each radio concentrator, radio network gateway through optical network data communication terminal; Or,
Distribution automation DSCADA system by through optical network data system by main carrier communication equipment, carry out data communication from carrier, each radio network gateway and electricity consumption distribution network terminal.
In the telecommunication management platform of low-voltage collecting meter reading, micro power radio communication system has been set up the bottom-layer network platform of intelligent low-voltage collecting meter reading system jointly in conjunction with existing optical fiber telecommunications system, concrete network topology architecture:
Electrical network marketing management system passes through each radio concentrator, radio network gateway and the communication of electricity consumption acquisition terminal through optical network data communication terminal; Or,
Electrical network marketing management system adopts VPN special line in GPRS network communication by data capture management front end, and GPRS network is through each radio network gateway and the communication of electricity consumption acquisition terminal.
Compared with the prior art, beneficial effect of the present invention is embodied in:
The general requirement that the strong intelligent grid of State Grid Corporation of China is built, is to guarantee that intelligent grid construction specification advances in order, realizes power consumer power information acquisition system construction " all standing, full collection, full pre-payment ".Low pressure household table copy reading coverage is the widest, and customer volume is maximum, is the emphasis of realization of goal.
Low pressure kilowatt meter reading-out system divides and has two classes according to the communication mode of checking meter: wired and wireless.Wired meter reading method is mainly used RS-485 bus and low pressure carrier wave kilowatt meter reading-out system; Radio meter register application is mainly GPRS wireless public network communication module.And in current low pressure kilowatt meter reading-out system, the communication mode that adopts collector and concentrator to mutually combine, the traffic model that adopts often two kinds of communication modes to mix: adopt low-voltage carrier communication mode between collector and concentrator, concentrator and collection are copied and adopted GPRS communication mode between server.
But also there are numerous deficiencies in low-voltage collecting meter reading system at present: low-voltage network circumstance complication, disturb greatly, and low voltage power line carrier is difficult to the stability that guarantees that it is checked meter; For many power utilization environments that become power supply, because carrier wave is crosstalked, should not implement carrier meter reading scheme; Because carrier transmission distance is limited, need to guarantee the coverage of checking meter by trunking scheme, for low-density residential buildings such as rural area, the combination areas of city and country, can not accomplish all standing, implement difficulty very large; Low-voltage power line narrowband carrier speed is low, and real-time is poor, cannot meet remote pre-payment, the demand of long-range switching on.
Micropower wireless communication technology can overcome other communication modes in the deficiency of some application scenario of checking meter, and easy construction does not need extra cable laying, and general workman can install easily; Communication is not limited to electrical network characteristic, easily Dui Kuatai district, the complicated power utilization environment Rapid Implementation scheme of checking meter: traffic rate is fast, and real-time is high, conveniently implements remote pre-payment, the application such as long-range switching on.
In the telecommunication management platform of low-voltage collecting meter reading, micro power radio communication system, in connection with existing optical fiber telecommunications system and wireless public network GPRS communication system, has been set up the bottom-layer network platform of intelligent low-voltage collecting meter reading system jointly.
The intelligent degree of electrical network is more and more higher, and the requirement of Intelligent Substation System is more and more higher.Intelligent substation is the smart machine that adopts advanced, reliable, integrated and environmental protection; with the information digitalization of entirely standing, communications platform networking, information sharing, be standardized as basic demand; automatically complete the basic functions such as information gathering, measurement, control, protection, metering and detection; meanwhile, the transformer station that possesses the Premium Features such as the automatic control in real time of support electrical network, intelligence adjusting, on-line analysis decision-making and collaborative interaction.
Adopt micropower wireless network to cover the equipment control region of each intelligent substation, build the equipment WLAN (wireless local area network) in intelligent substation, security protection, the checkout equipment of realizing intelligent substation inside interconnect, and can realize the information maximization degree of transformer station inside and share.
Need to build strong intelligent grid building-up work, an important building-up work content realizes distribution automation exactly.In the medium voltage network of 10KV and 35KV, the running status of electrical network is realized to automatic detection, accident analysis, effectively isolation, fast quick-recovery, ensure reliability and the fail safe of user power utilization.But along with distribution automation system is built spreading out of face, the communication system of distribution automation is faced with that field condition complexity, equipment level are various, reliability requirement is compared with high, accordingly, the communication system construction scheme of distribution automation is also more various, has optical fiber telecommunications system, communication and medium-voltage carrier communication mode etc.
In the construction scheme of current distribution automation communication system, optical fiber communication mode reliability and safe sexual valence are high, be applicable to the distribution communication system construction scheme in Downtown and new district, but construction is comparatively complicated, use cost is also higher, and is not suitable for the construction of the distribution of large-scale outskirts of a town, old town distribution and rural power grids distribution communication system.Carrier communication mode is the communication mode of comparative maturity, constructs more convenient, but is communication transmission media owing to take a rack, is subject to the interference of power cable environment, has some limitations.The GPRS of wide-scale adoption or the wireless public network communication technology of 3G also extensively adopt in distribution automation system at present, but owing to being subject to the interference of public network signal, and safety and reliability can not reach the requirement of distribution network systems, can only be applicable at present one distant, two distant communications are on-the-spot, realize the monitoring of field equipment state.
Adopt micro power radio communication system as the communication mode of distribution automation, in distribution automation region construction on site to cover private network based on micropower wireless zone, from scheme cost, reliability with in fail safe, can communicate by letter and medium-voltage carrier communication mode effectively supplements to optical fiber communication, wireless public network.Micro power radio communication system Adoption Network exchanges data in native system and application data are grabbed two kinds of data transaction models sending out and can be met with the compatible of the communication such as optical fiber, wireless, carrier wave and interconnect; And the micropower wireless design in native system mutually standby system and the mutually standby mode based on upper connecting port of route Network Based, single-point or the multiple spot that can resist micropower wireless network lost efficacy, and had guaranteed to the full extent reliability and the fail safe of system.In addition due in middle voltage distribution networks system, low pressure way to take power does not perplex a difficult problem for distribution automation system development always, adopt micro power radio communication system, low-power consumption, wake-up pattern in conjunction with micropower wireless system, can adopt dry cell power supply just can keep the system power consumption of quite a long time.
Accompanying drawing explanation:
Fig. 1 is system framework schematic diagram of the present invention; Fig. 2 constructs the micropower wireless zone private network configuration diagram in region with gprs system; Fig. 3 constructs the micropower wireless zone private network configuration diagram in region with fibre system; Fig. 4 is the communication mode schematic diagram merging mutually with carrier communication system; Fig. 5 be micropower wireless+low-voltage collecting meter reading communication network schematic diagram that optical fiber telecommunications system forms; Fig. 6 be micropower wireless+low-voltage collecting meter reading communication network schematic diagram that GPRS communication system forms.
Below pass through embodiment, and the invention will be further described by reference to the accompanying drawings.
Embodiment:
Embodiment: the electric power small wireless private network system that is applied to intelligent grid of the present invention, the deployment way of its system can merge with optical fiber, carrier wave or GPRS mode, and concrete system amalgamation mode is:
(constructing the micropower wireless zone private network in region with gprs system): distribution automation DSCADA system adopts VPN special line and GPRS network communication by data capture management front end, and GPRS network is communicated by letter with electricity consumption distribution network terminal through each radio network gateway; Or,
(constructing the micropower wireless zone private network in region with fibre system): distribution automation DSCADA system is communicated by letter with electricity consumption acquisition terminal by each radio concentrator, radio network gateway through optical network data communication terminal; Or,
(communication mode merging mutually with carrier communication system): distribution automation DSCADA system by through optical network data system by main carrier communication equipment, carry out data communication from carrier, each radio network gateway and electricity consumption distribution network terminal.
In the telecommunication management platform of low-voltage collecting meter reading, micro power radio communication system has been set up the bottom-layer network platform of intelligent low-voltage collecting meter reading system jointly in conjunction with existing optical fiber telecommunications system, concrete network topology architecture:
Electrical network marketing management system passes through each radio concentrator, radio network gateway and the communication of electricity consumption acquisition terminal through optical network data communication terminal; Or,
Electrical network marketing management system adopts VPN special line in GPRS network communication by data capture management front end, and GPRS network is through each radio network gateway and the communication of electricity consumption acquisition terminal.
The present invention mainly describes the region power communication private network that adopts the communication mode of low-power wireless to build, and micro power radio communication system is the wireless data transmission network of the low rate set up by wireless communication module, low cost, low-power consumption.Be devoted to provide a kind of fixing, portable or mobile device of cheapness to use, low complex degree, the low-speed wireless communication technology of cost and power.This technology is applicable to that data throughout is less, networking investment is less, network security requirement is higher, the frequent applications of changing power supply or charging of inconvenience.Such as: in the equipment such as home automation, industrial automation, power automation, environmental monitoring system.
Along with the development of network technology, micro power radio communication system has had point-to-point communication mode development to set up to star-network establishment, mesh network; The network system that multi-path transmission etc. are complicated.
Building the wireless region covering power private network communication system of micropower is to adopt suitable micro power radio communication platform as communication physical layer, and take this communications platform as basis, structure is applicable to the traffic model of electric power wireless private network, with meet with certain area in region cover the communication technology, in native system, according to the part level module of the OSI of standard network device seven layer protocols, carry out the functions expanding of device systems.Concrete system frame structure as shown in Figure 1.
Adopt micro power radio communication system as the communication mode of distribution automation, in distribution automation region construction on site to cover private network based on micropower wireless zone, from scheme cost, reliability with in fail safe, can communicate by letter and medium-voltage carrier communication mode effectively supplements to optical fiber communication, wireless public network.Micro power radio communication system Adoption Network exchanges data in native system and application data are grabbed two kinds of data transaction models sending out and can be met with the compatible of the communication such as optical fiber, wireless, carrier wave and interconnect; And the micropower wireless design in native system mutually standby system and the mutually standby mode based on upper connecting port of route Network Based, single-point or the multiple spot that can resist micropower wireless network lost efficacy, and had guaranteed to the full extent reliability and the fail safe of system.In addition due in middle voltage distribution networks system, low pressure way to take power does not perplex a difficult problem for distribution automation system development always, adopt micro power radio communication system, low-power consumption, wake-up pattern in conjunction with micropower wireless system, can adopt dry cell power supply just can keep the system power consumption of quite a long time.
Claims (2)
1. the electric power small wireless private network system that is applied to intelligent grid, is characterized in that, the deployment way of system can merge with optical fiber, carrier wave or GPRS mode, and concrete system amalgamation mode is:
Distribution automation DSCADA system adopts VPN special line and GPRS network communication by data capture management front end, and GPRS network is communicated by letter with electricity consumption distribution network terminal through each radio network gateway; Or,
Distribution automation DSCADA system is communicated by letter with electricity consumption acquisition terminal by each radio concentrator, radio network gateway through optical network data communication terminal; Or,
Distribution automation DSCADA system by through optical network data system by main carrier communication equipment, carry out data communication from carrier, each radio network gateway and electricity consumption distribution network terminal.
2. the electric power small wireless private network system that is applied to intelligent grid according to claim 1, it is characterized in that, in the telecommunication management platform of low-voltage collecting meter reading, micro power radio communication system has been set up the bottom-layer network platform of intelligent low-voltage collecting meter reading system jointly in conjunction with existing optical fiber telecommunications system, concrete network topology architecture:
Electrical network marketing management system passes through each radio concentrator, radio network gateway and the communication of electricity consumption acquisition terminal through optical network data communication terminal; Or,
Electrical network marketing management system adopts VPN special line in GPRS network communication by data capture management front end, and GPRS network is through each radio network gateway and the communication of electricity consumption acquisition terminal.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105071999A (en) * | 2015-07-06 | 2015-11-18 | 国网天津市电力公司 | Micropower wireless area-coverage power communication private network |
| CN105208565A (en) * | 2015-07-06 | 2015-12-30 | 国网天津市电力公司 | Physical layer framework for micro-power wireless area coverage electric power communication private network |
| CN111917638A (en) * | 2020-07-09 | 2020-11-10 | 首钢京唐钢铁联合有限责任公司 | Electric power monitoring communication system |
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