CN201766414U - Distribution network feeder automation system based on wireless ad hoc network - Google Patents
Distribution network feeder automation system based on wireless ad hoc network Download PDFInfo
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- CN201766414U CN201766414U CN2010202816651U CN201020281665U CN201766414U CN 201766414 U CN201766414 U CN 201766414U CN 2010202816651 U CN2010202816651 U CN 2010202816651U CN 201020281665 U CN201020281665 U CN 201020281665U CN 201766414 U CN201766414 U CN 201766414U
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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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- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
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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
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Abstract
The utility model relates to a distribution network feeder automation system based on a wireless ad hoc network comprising a feeder terminal automation system and a distribution and transformation information acquisition system, wherein, an upper computer SCADA (supervisory control and data acquisition) monitoring system is adopted, the upper computer SCADA (supervisory control and data acquisition) monitoring system is connected with the wireless ad hoc network through a communication manager, the wireless ad hoc network comprises an upper layer network and a lower layer network, the upper layer network is used as the feeder terminal automation system, the lower layer network is used as the distribution and transformation information acquisition system, and the upper layer network and the lower layer network adopt different routing protocols according to different requirements for acquiring information. The utility model has the advantage that the system utilizes the characteristics of the wireless ad hoc network and transfer related data via network by taking the upper layer network route at the switching node as a center. The utility model is reasonable in structure, convenient and suitable for use, convenient to implement, high in transmission efficiency, and low in operating expense. Moreover, the utility model can make the best of the information resources in the ad hoc network, requires less efforts of improvement to the conventional feeder network, and can achieve excellent communication effects.
Description
Technical field
The utility model relates to the automated system of power distribution network, particularly based on the distribution feeder automation system of wireless self-networking.It can realize carrying out power distribution automation and corresponding information collection and transmission in the mode of wireless self-networking.
Background technology
Construction along with China's intelligent grid, the automatization level of power distribution network is greatly increased, therefore the communication network of power distribution network is correspondingly had higher requirement, the automation of the communication network of power distribution network becomes developing tendency in future, and to carry out the automatic communication network construction of power distribution network, be necessary the communication system of existing power distribution network is transformed, can guarantee distribution network automated realization better like this.
According to the knowledge of the applicant, traditional distribution automation system mainly is that the mode with SDH optical fiber private network and GPRS/CDMA wireless network communicates.If SDH optical fiber private network is as the wire communication mode, its problem of bringing is that the engineering of wiring and track remodelling is big, engineering cost is high, and is impaired easily, not removable, very flexible, so SDH optical fiber private network is not suitable for being applied to distribution feeder automation.And the real-time and the fail safe of conventional wireless network (public network) mode (GPRS/CDMA) transmission data can't ensure, and need can cause operating cost higher so regularly to operator's payment network lease expenses.
As everyone knows, the distribution network automated two big functions that mainly contain: a kind of function is the monitoring that realizes switchgear in the power distribution network, realizes " four is distant " function of remote control, remote signalling, remote measurement, remote regulating.Be characterized in that the information transmitted amount is few, but the real-time requirement is very high.Another kind of function is the control and the management of load, and as long distance meter reading and charging automation etc., this function involves a wide range of knowledge, and data volume is very huge, but less demanding to real-time.
Studies show that, the multi-hop autonomous networks system that the wireless self-networking that is used to communicate by letter is static by a group or mobile node is formed, network service is the mutual cooperation that relies between the node, finishes in the multi-hop mode, need not the fixed base stations support.And nodes all in the wireless self-networking that existing employing transducer constitutes can be born the function of main frame and router, the transmission-receiving function that the residing node of each transducer all has information because of the characteristic that its status equates.Because the restriction of transmission range, when two nodes can not direct communication, can transmit by intermediate node.This class wireless self-networking at present, has been widely used in the military communication field and has been difficult for setting up in the environment of fixed communication facility, as environment measuring, emergency searching and rescuing etc. because of its high reliability and flexibility.But according to the knowledge of the applicant, wireless self-networking does not obtain using in the distribution feeder automation system as yet.
The utility model content:
The purpose of this utility model is in order to overcome the deficiencies in the prior art, to propose the distribution feeder automation system based on wireless self-networking.
Technical solution of the present utility model is, adopt wireless self-networking, comprise the line feed terminals Department of Automation distribution transformer terminals information acquisition system of unifying, it is characterized in that, adopted host computer SCADA supervisory control system, host computer SCADA supervisory control system is joined by communication processor and wireless self-networking and is connected, wireless self-networking is made of two-tier network up and down, upper layer network is as the line feed terminals automated system, lower floor's network is as the distribution transformer terminals information acquisition system, and the two-tier network up and down that constitutes wireless self-networking adopts different Routing Protocols according to the difference requirement of Information Monitoring.
It is characterized in that the upper layer network that constitutes wireless self-networking has adopted the DSR Routing Protocol, constitute the network using DSDV of the lower floor Routing Protocol of wireless self-networking.
It is characterized in that the tie point that constitutes the two-tier network up and down of wireless self-networking is equipped with the upper layer network route.
It is characterized in that the wireless self-networking that is made of two-tier network has up and down adopted three kinds of hardware protection devices; First kind of hardware protection device is remote control terminal, is used as the upper layer network route, and it is installed in each switching node in the network; Second kind of hardware protection device is the transfer route, is installed in the upper layer network; The third hardware protection device is a distribution transformer terminals, as lower floor's network route.
It is characterized in that distribution transformer terminals comprises distribution transformer monitoring equipment, and distant kilowatt meter recorder.
It is characterized in that remote control terminal has been equipped with wireless communication module.
It is characterized in that the transfer route has been equipped with wireless communication module.
It is characterized in that distribution transformer terminals has been equipped with wireless communication module.
It is characterized in that, on wireless communication module, add directional antenna.
Operation principle of the present utility model and working method are that first kind of hardware protection device---the remote control terminal that upper layer network is installed by each power distribution network switching node place in the network is realized control and protection to the switch in the network.Write in this hardware protection device based on the needed variety of protocol of the communication of wireless self-networking; can be by being installed in the external wireless communication module on this hardware protection device in the network; the wireless transmission of realization information and reception, thereby " four is distant " function of realization power distribution network.Remote control terminal also can be referred to as host computer.After some switches break down in the network; the hardware protection device will real-time monitor the fault of switch, by the Routing Protocol in the hardware protection device, seeks close with it network node automatically; by Handshake Protocol, determine whether neighbor node is transmitting data.If sending other node datas, then continue to seek next node, if be not in a hurry, communicate information to this node, by that analogy, information is sent to the communication manager that links to each other with host computer the most at last, sends in the host computer SCADA supervisory control system.In like manner, host computer SCADA supervisory control system also sends instruction to concrete certain hardware protection device by same method, and this hardware protection device will be controlled the switch that connects that matches with it and carry out corresponding action.
In addition, the information gathering of the distribution transformer terminals of lower floor's network, by near the distribution transformer the intelligent switch, electric energy meter is formed lower floor's network of wireless self-networking among a small circle, upper layer network route with the switching node place is a terminal, realizes the information exchange of itself and distribution monitoring main website.The upper layer network route is formed a connecting link in wireless self-networking, and this node has the two-tier network agreement simultaneously, as realizing the middle bridge of two-tier network.
The utility model adopts host computer SCADA supervisory control system, the distribution network automated unique function that realization constitutes based on wireless self-networking, to the power distribution network routing node of network and the routing node of lower floor's network at the middle and upper levels, all distributed unique geocoding, so host computer can well demonstrate the route that each information exchanging process experiences, thereby differentiate fault better, and the situation of differentiating each node work.Transmission that like this can real-time tracking information, transmission route and the information that can observe the data of uploading or passing down on host computer transmit the node location that interrupts, and so in a single day loss of data occurs, and also can find out data is to lose wherein.
The utility model adopts a cover system, has successfully realized control of feeder automation and distribution transforming side load and management.In view of feed line automatization system in the past, and the power distribution information acquisition system all is independent operating, because the importance of feeder automation, and the complexity on distribution transforming side line road and the magnanimity information of transmission, make two systems be difficult to merge.For this deficiency that prior art exists, the utility model can be solved well, two systems is merged, and realized centralized control effectively, has improved efficiency of managing, has reduced cost.
The utility model proposes and on wireless network, adopt hierarchy, both made full use of existing device resource, realized networking on the spot, reached the expection requirement that in the construction of circuit, need not to drop into too many cost again; The selected different routing protocol of levels network, be to have fully taken into account the characteristics that feeder automation and distribution transformer load control and management information transmit, the result who does like this can improve reliability of data transmission and correctness greatly, also can make the overall performance of system get a promotion.
Three kinds of hardware protection devices that the utility model adopted with each one does his duty, are finished the function of upper layer network route respectively, the function of lower floor's network route, and the function of the tie point of levels network.With three kinds of hardware protection devices is that the data-transmission channel of the sense that has levels formed of core component can promote the reliability of the utility model whole system greatly.
The utility model has the advantages that, utilize existing power distribution network, according to the demand of distribution feeder automation, power distribution network is divided into two parts, set up wireless self-networking, adopt different Routing Protocols, constitute the power distribution automation communication network for the upper layer communication node with the intelligent switch; Utilize the characteristics of wireless self-networking, upper layer network route with the switching node place is the center, transmit relevant data by network, be sent to host computer SCADA supervisory control system by corresponding upper layer network route, realize the automation control and the management of power distribution network by host computer SCADA supervisory control system.Of the present utility model rational in infrastructure, convenient being suitable for is convenient to implement, and its efficiency of transmission height can make full use of the information resources in the network, and operating cost is low, and is less to the transformation amount of existing feeder network, and can reach good communication effect.
Description of drawings
Fig. 1, the utility model basic structure schematic diagram
The upper layer network schematic diagram that Fig. 2, the utility model adopt
The fault location structure that Fig. 3, the utility model adopt
Fig. 4, the utility model structure principle chart
Embodiment
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the utility model adopts wireless self-networking 1, comprise the line feed terminals Department of Automation distribution transformer terminals information acquisition system of unifying, adopted host computer SCADA system 3, host computer SCADA system 3 joins by communication processor 2 and wireless self-networking 1 and connects, wireless self-networking 1 is made of two-tier network up and down, upper layer network 4 is as the line feed terminals automated system, lower floor's network is as the distribution transformer terminals information acquisition system, and the two-tier network up and down that constitutes wireless self-networking 1 adopts different Routing Protocols according to the difference requirement of Information Monitoring.Wherein, the upper layer network 4 that constitutes wireless self-networking 1 has adopted the DSR Routing Protocol, constitutes the network using DSDV of the lower floor Routing Protocol of wireless self-networking 1.Lower floor's network comprises several lower floor's network routes 5.The tie point that constitutes the two-tier network up and down of wireless self-networking 1 adopts upper layer network route 6.The wireless self-networking 1 that is made of two-tier network has up and down adopted three kinds of hardware protection devices; First kind of hardware protection device is remote control terminal (FTU), and it is used as upper layer network route 6, and upper layer network route 6 is installed in each switching node in the network; Second kind of hardware protection device is the transfer route, is installed in the upper layer network 4, is used for the routing node of information transfer; The third is distribution transformer terminals (TTU) for the hardware protection device, and it is used as lower floor's network route 5, and lower floor's network route 5 comprises distribution transformer monitoring equipment, and distant kilowatt meter recorder.
Each switch 7 in the feeder network that feeder line by power distribution network constitutes connects upper layer network route 6.Upper layer network route 6 is installed in the tie point of two-tier network up and down, constitutes the interface channel of two-tier network up and down.Upper layer network route 6 has adopted remote control terminal (FTU), realizes control and protection to the switch in the feeder network 7.Write in the upper layer network route 6 based on the needed variety of protocol of wireless self-networking communication, can pass through the mode of external wireless communication module thereon, the wireless transmission of realization information and reception, thereby " four is distant " function of the remote control of realization power distribution network, remote signalling, remote measurement, remote regulating.When some open 7 close break down after, remote control terminal (FTU) will real-time monitor the fault of switch, by the Routing Protocol in the remote control terminal (FTU), seeks close with it network node automatically, by Handshake Protocol, determine whether neighbor node is transmitting data.If sending other node datas, then continue to seek next node, if be not in a hurry, communicate information to this node, by that analogy, information is sent to the communication manager 2 that links to each other with monitoring host computer the most at last, sends in the host computer SCADA supervisory control system 3 again.In like manner, host computer SCADA supervisory control system 3 also sends instruction to concrete certain FTU by same method, and FTU carries out corresponding action with control switch 7.Switch 7 in the feeder network adopts intelligent switch.
Remote control terminal (FTU) has been equipped with wireless communication module; The transfer route has been equipped with wireless communication module; Distribution transformer terminals (TTU) is equipped with wireless communication module; On wireless communication module, add directional antenna.
The information gathering of distribution transformer terminals (TTU), will be by near the distribution transformer terminals equipment 8 (distribution transformers the intelligent switch node, electric energy meter) lower floor's network of forming among a small circle carries out, upper layer network route 6 by the switching node place is as terminal, import upper layer network 4 into, realize the information exchange of itself and distribution monitoring main website.Company's node of switch 7 plays a part to form a connecting link in wireless self-networking 1, and this node has the two-tier network agreement simultaneously, to realize the beam action of two-tier network intermediate axle.Distribution transformer terminals equipment 8, and data acquisition unit such as electric energy meter complements one another, to make up lower floor's network of the wireless self-networking of wanting 1 required for the present invention.
Routing Protocol is the important component part that guarantees wireless self-networking 1 normal delivery information.Realize the multi-hop route, must select corresponding Routing Protocol.The Routing Protocol that is applicable to power distribution network mainly contains DASV, DSR, AVOD, OLSR etc., and notice, every kind of Routing Protocol all have characteristics separately, are suitable for different environments for use.
Here need to illustrate that the radio node of lower floor's network can only carry out communication with upper layer network route 6 remote control terminal that adopts (FTU) of a unique appointment in its region, place.The destination address that is the lower floor's wireless self-networking in each zonule is unique, information is by the route in the network, multi-hop transmission information is to the FTU device, after FTU receives data, will according to circumstances corresponding data be transferred to SCADA monitoring software in the host computer by upper layer network 4.Remote control terminal (FTU) is a data message of collecting lower floor's network in the mode of inquiry, the pro-jobs level of lower floor's network data upload is minimum, that is to say, only when remote control terminal (FTU) did not have other tasks, it just can send the data of lower floor's network to Surveillance center.
Because the utility model has adopted the wireless self-networking 1 of two-tier network formation up and down, and the features of the object of using is different, so the hardware protection device that the utility model adopts is divided into three kinds.First kind of hardware protection device is remote control terminal (FTU), and it also can be called the router of upper layer network 4 as upper layer network route 6.Second kind of hardware protection device is applied to upper layer network 4, is used for the transfer route of information transfer.The third hardware protection device is the TTU that is applied to the distribution transformer terminals of lower floor's network, is also referred to as lower floor's network route 5, comprises distribution transformer monitoring equipment, and distant kilowatt meter recorder.
Remote control terminal (FTU) has important effect in the electrical power distribution automatization system based on wireless self-networking.It not only will realize the various defencive functions of power distribution network requirement, and another important task is exactly to realize the connection of two-layer wireless network up and down, realizes effective transmission of two network informations up and down.Therefore this hardware device is required high.Remote control terminal (FTU) needs to be equipped with two wireless modules, is applied to two-tier network respectively.
At present, the effective communication distance of the wireless communication module of most of wireless networks is less than 2000 meters, and in some area, the node of switch control can not cover whole network fully, therefore need be according to the geographical distribution situation at power distribution network place, and the installing routing node.This hardware unit does not need to possess the defencive function as remote control terminal (FTU), only needs the reception of the information of can finishing and sends just passable.Therefore more simpler than remote control terminal (FTU) on hardware designs.Routing node only needs a wireless module, finishes the communication task of upper layer network 4.
Various distribution transformer terminals (TTU) need the task of finishing according to needs separately, set the corresponding techniques requirement, and write Routing Protocol in hardware unit, to finish the transmission task of information.Distribution transformer terminals (TTU) only needs a wireless module, realizes the transmission of information.
In addition, if other nodes of some terminal or nodal distance are distant, and nearest with it node has only one, can adopt the mode that installs directional antenna on wireless module additional, and the transmittability of enhancing signal reaches the purpose that reduces network node.Usually the cost of directional antenna is more much lower than the cost of network node.Therefore, use in this case, the structure that installs directional antenna on the wireless module additional should be paid the utmost attention to.
Differentiation and location to fault of the present utility model be, several wireless network routes are installed near the distribution feeder switch, and these nodes are divided into several segmentations with whole power distribution network.Each node is responsible for monitoring a certain section circuit, and according to the fault message that node provided, can judge very rapidly is that fault has taken place which section.Each node all has own unique encoding address, just can demonstrate out the route that information is transmitted like this when incident is uploaded on host computer accurately.
As shown in Figure 3, seven upper layer network routes 6 have been installed in the power distribution network, respectively on the position of network node one, network node two, network node three, network node four, network node five, network node six, network node seven.Host computer SCADA monitoring software is the Centroid of wireless self-networking network.If there is fault to take place, node can draw fault message at once and be sent to Surveillance center by wireless mode.Be example with the A point as the fault point among Fig. 3, network node one, network node three and network node five are arranged before the A point.At this moment be in network node five near the network the A of fault point and the upper layer network route 6 on the network node seven and all will monitor fault, they import fault message into monitoring host computer by wireless self-networking 1 respectively.Route is respectively: network node seven---network node five---network node three---network node one and network node five---network node three---network node one.The Surveillance center that is in transformer station judges fault very soon according to the signal source of receiving and occurs between network node five and the network node seven.This has just realized failure location.
Claims (9)
1. based on the distribution feeder automation system of wireless self-networking, adopt wireless self-networking, comprise the line feed terminals Department of Automation distribution transformer terminals information acquisition system of unifying, it is characterized in that, adopted host computer SCADA supervisory control system (3), host computer SCADA supervisory control system (3) is joined by communication processor (2) and wireless self-networking (1) and is connected, wireless self-networking (1) is made of two-tier network up and down, upper layer network (4) is as the line feed terminals automated system, lower floor's network is as the distribution transformer terminals information acquisition system, and the two-tier network up and down that constitutes wireless self-networking (1) adopts different Routing Protocols according to the difference requirement of Information Monitoring.
2. the distribution feeder automation system based on wireless self-networking according to claim 1, it is characterized in that, the upper layer network (4) that constitutes wireless self-networking (1) has adopted the DSR Routing Protocol, constitutes the network using DSDV of the lower floor Routing Protocol of wireless self-networking (1).
3. the distribution feeder automation system based on wireless self-networking according to claim 1 is characterized in that, it is characterized in that, the tie point that constitutes the two-tier network up and down of wireless self-networking (1) is equipped with upper layer network route (6).
4. the distribution feeder automation system based on wireless self-networking according to claim 1 is characterized in that, the wireless self-networking (1) that is made of two-tier network has up and down adopted three kinds of hardware protection devices; First kind of hardware protection device is remote control terminal (FTU), is used as upper layer network route (6), and it is installed in each switching node in the network; Second kind of hardware protection device is the transfer route, is installed in the upper layer network (4); The third hardware protection device is distribution transformer terminals (TTU), as lower floor's network route (5).
5. the distribution feeder automation system based on wireless self-networking according to claim 1 is characterized in that distribution transformer terminals (TTU) comprises distribution transformer monitoring equipment, and distant kilowatt meter recorder.
6. the distribution feeder automation system based on wireless self-networking according to claim 1 is characterized in that remote control terminal (FTU) has been equipped with wireless communication module.
7. the distribution feeder automation system based on wireless self-networking according to claim 4 is characterized in that the transfer route has been equipped with wireless communication module.
8. the distribution feeder automation system based on wireless self-networking according to claim 4 is characterized in that distribution transformer terminals (TTU) has been equipped with wireless communication module.
9. according to claim 6 or 7 or 8 described distribution feeder automation systems, it is characterized in that, on wireless communication module, add directional antenna based on wireless self-networking.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010202816651U CN201766414U (en) | 2010-08-03 | 2010-08-03 | Distribution network feeder automation system based on wireless ad hoc network |
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| CN2010202816651U CN201766414U (en) | 2010-08-03 | 2010-08-03 | Distribution network feeder automation system based on wireless ad hoc network |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924391A (en) * | 2010-08-03 | 2010-12-22 | 国网电力科学研究院武汉南瑞有限责任公司 | Electric distribution network feeder automation system based on wireless ad hoc network and networking method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924391A (en) * | 2010-08-03 | 2010-12-22 | 国网电力科学研究院武汉南瑞有限责任公司 | Electric distribution network feeder automation system based on wireless ad hoc network and networking method thereof |
| CN101924391B (en) * | 2010-08-03 | 2013-07-31 | 国网电力科学研究院武汉南瑞有限责任公司 | Electric distribution network feeder automation system based on wireless ad hoc network and networking method thereof |
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