CN103001325A - An intelligent distribution network system based on Beidou satellite communication system - Google Patents
An intelligent distribution network system based on Beidou satellite communication system Download PDFInfo
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Abstract
The invention discloses an intelligent network distribution system based on the Beidou satellite communication system. The intelligent network distribution system is characterized by comprising a primary power distribution station, a secondary power distribution station and a power distribution terminal. Beidou satellite communication modules are mounted on the primary power distribution station, the secondary power distribution station and the power distribution terminal respectively. The power distribution terminal is communicated with the primary power distribution station or the secondary power distribution station through the Beidou satellite communication system. The secondary power distribution station is communicated with the primary power distribution station or the power distribution terminal through the Beidou satellite communication system. By the intelligent network distribution system, power supply quality and reliability are improved, management level and work efficiency of power distribution are improved, network structure is optimized, users affected by power failure caused by faults are minimized, economical benefits are increased, responding speed to users' complaint is increased, and responding capacity for the users during faults is improved.
Description
Technical field
The present invention relates to intelligent distribution network systems, relate in particular to the intelligent distribution network systems based on Beidou satellite communication system.
Background technology
Existing intelligent distribution network systems comprises based on the intelligent distribution network systems of WiMAX broadband wireless private network, based on the intelligent distribution network systems of broadband P LC and based on intelligent distribution network systems of wireless public network etc.Although WiMAX broadband wireless private network technology has developed comparatively ripe, does not distribute at home special-purpose frequency range.Power industry only has some frequencies of 230MHz to use at present, and this frequency range also is not suitable for the WiMAX networking, need to actively strive for the special-purpose frequency spectrum resource of private network to national communication authorities, and whether following national policy is loosening, still uncertain.Broadband P LC technical office is in period of expansion, its technological progress and industrial environment are in close relations, need to set up domestic unified standard standard, solve the independent intellectual property right problem, realize the production domesticization of acp chip technology, research and development are applicable to product and the equipment of domestic low-voltage network characteristic, progressively realize the industrialized development of broadband power line communication.The wireless public network mode has advantages of that the construction period is short, cost is low, but owing to wireless public network and the Internet communicate in essence, the fail safe of wireless public network communication mode, reliability, real-time can not guarantee, when the access user number increased, traffic rate can not guarantee.The wireless distribution mode that present stage adopts usually mainly is take the GPRS radio communication as main, and its advantage is that distribution is convenient, and operating cost is taken cheap.Therefore but State Grid Corporation of China considers that the fail safe of public network is not high, forbids communicating by letter with the GPRS mode and carries out straighforward operation.Therefore this scheme can not realize the adult demand of distribution automation fully.Wireless public network can only be as the arbitrary way of present stage networking, and do not need to only limit to the application such as terminal communication of distant control function.
Summary of the invention
For the above-mentioned problems in the prior art, the invention provides the intelligent distribution network systems based on Beidou satellite communication system.
The invention provides a kind of intelligent distribution network systems based on Beidou satellite communication system, comprise distribution main website, distribution substation and distribution terminal, described distribution main website, distribution substation and distribution terminal are separately installed with the big-dipper satellite communication module, described distribution terminal is by Beidou satellite communication system and described distribution substation or described distribution master station communication, communicates by letter with described distribution main website or described distribution terminal by Beidou satellite communication system in described distribution substation.
Preferably, described distribution substation and described distribution terminal also comprise the stipulations converting unit, are used for the stipulations conversion between realization satellite communication and the electric power local area network communication.
Preferably, described distribution terminal reports position and the work information of self when powering on, and perhaps the indication according to described configuration main website reports position and work information.
Preferably, described distribution terminal can be realized remote signalling, telemetry and telecommand.
Preferably, described distribution terminal is finished remote measurement, remote signalling or remote control according to the control command that described distribution substation or described distribution main website issue by Beidou satellite communication system.
Preferably, described distribution terminal is crossed Beidou satellite communication system with the data communication device that gathers and is sent to described distribution substation or described distribution main website.
Preferably, described distribution terminal discontinuous to described distribution substation or described distribution main website send the data that gather.
Preferably, described distribution terminal when running into fault immediately to described distribution substation or described distribution main website send fault parameter.
Preferably, described distribution terminal when running into fault, adopt urgent location mode immediately to described distribution substation or described distribution main website send fault warning.
Preferably, the stipulations converting unit comprises task management interface and data access interface, the management function of task management Interface realization stipulations task, data access interface realize the read-write of stipulations data access, stipulations database, transmitting-receiving and processing and the control command transmitting-receiving processing of message informing event.
The present invention can improve power supply quality and power supply reliability, improves distribution work managerial skills and operating efficiency, the optimized network structure, make and hinder for some reason customer interrupted and minimize as far as possible, increase economic efficiency, improve the response speed to customer complaint, when improving fault to user's responsibility.
Description of drawings
Come the present invention is described in further detail below in conjunction with accompanying drawing, wherein:
Fig. 1 is intelligent distribution network systems structure chart;
Fig. 2 is the intelligent distribution network systems structure chart that the present invention is based on Beidou satellite communication system;
Fig. 3 is the structure chart that the Big Dipper terminal that provides is provided.
Embodiment
As shown in Figure 1, a complete distribution communication system should possess following function at least: communicating by letter between the communication between communicating by letter in communicating by letter between distribution central master station and the distribution substation system, distribution substation system and its region within the jurisdiction between the distribution terminal, the distribution terminal, distribution central master station and the distribution terminal.
In order to realize above-mentioned functions, as shown in Figure 2, it is that 3 levels form that intelligent distribution network systems of the present invention is divided into: the commander of distribution main website machine, distribution substation commander's machine, Big Dipper terminal are installed on respectively that distribution is advocated war, distribution substation and distribution terminal FTU/DTU (feed line automatization terminal).Big Dipper terminal connects afterwards by RS485 serial ports and stipulations modular converter communicates by letter with FTU/DTU by Ethernet interface.FTU/DTU has " three is distant " function, i.e. remote measurement, remote signalling, distant control function.Primary equipment need to have motor-operating mechanism, and the update in present stage by equipment all has above-mentioned functions.
The big-dipper satellite communication module is and the equipment of satellite communication, therefore all will installs at distribution main website, distribution substation and distribution terminal.In the big-dipper satellite communication module of FTU/DTU powers at every turn, initiatively to the substation and main website report work information one time; Main website and substation also can order FTU/DTU to report work information.
Distribution terminal FTU/DTU collects various data and utilizes big-dipper satellite that information is sent to distribution substation or distribution main website, also can through big-dipper satellite with logical disposable all subordinate's distribution terminal FTU that send to of broadcast mode, finish long-haul telemetry, Remote control function by the control command that distribution substation or distribution main website are assigned.Between simultaneously distribution main website and the distribution substation system, in distribution substation system and its region within the jurisdiction between the distribution terminal, between the distribution terminal, can also point-to-point mode intercom mutually between distribution main website and the distribution terminal.
Big-dipper satellite limits to some extent to communication frequency and the bandwidth of civil area Big Dipper terminal.General civilian card be communication in 60 seconds once, once allow to send the binary code of 628bit.Therefore among the present invention, use the important parameter of the discrete transmission of dipper system, and discontinuous transmission; Transmit immediately the parameters such as fault current when simultaneously, running into fault.Use existing CDT rule schemata coding techniques that the information that will transmit is carried out compressed encoding, transmit parametric variable as much as possible to utilize limited effective information length, solve the restriction of bandwidth and satisfy the demand that transmits flow.
Although the user is subject to communication in 60 seconds service frequency restriction once, the present invention can guarantee to satisfy the general user to the requirement of self-healing ability by scientific and reasonable use general communication and urgent positioning function.When break down in the scene, the big-dipper satellite terminal equipment can utilize urgent locating information that malfunction is delivered to Big Dipper commander machine immediately, and background system can carry out accident analysis according to on-the-spot feedback, automatically transmitting order to lower levels, incident area is isolated, ensure the normal power supply of non-incident area.For example, after complete once conventional state reporting has just been carried out in the terminal station under extreme case, local DTU or the FTU warning of breaking down, owing to being subjected to the restriction of Big Dipper service frequency, can again communicate transmission after must waiting for 1 minute under the regular situation, at this moment, (restriction of the frequency is not served in urgent location can to take urgent mode of locating, but terminal need keep the time intervals of 2 times of service frequency to stop emission behind each promptly location) to substation transmission fault warning, simultaneously can use the elevation information position to carry out corresponding encoded, transmit effective information; During 2 times of service frequency time intervals after terminal sends urgent location stop to launch (2 minutes), substation or main website can be to terminal sending controling instruction diverter switches, terminal can be after executable operations, after fault reports 2 minutes, take the general communication mode with execution result to the substation or main website report; Substation or main website are after receiving the execution result of terminal, can send the inquiry instruction of reaffirming to terminal immediately, terminal can be taked urgent locate mode to the substation after receiving this instruction or inquiry is replied by main website, and the inquiry result can feed back in urgent locating information.By this communication arranged mode, can guarantee that whole control flow finished in 3 minutes, satisfy the general user to the time requirement of self-healing ability.
Big Dipper terminal is communicated by letter with FTU/DTU by Ethernet.Distribution substation commander's machine: be responsible for communicating by letter with subordinate FTU/DTU by big-dipper satellite, and monitoring subordinate FTU/DTU.FTU/DTU: the line feed terminals unit has " three is distant " function.Big-dipper satellite communication module and stipulations modular converter: be responsible for communicating by letter with FTU/DTU by Ethernet, finish the stipulations conversion, then by big-dipper satellite and distribution substation or distribution master station communication.The structure of Big Dipper terminal as shown in Figure 3,104 stipulations are connected with FTU/DTU, EEPROM, led state display module, parameter/configuration interface and big-dipper satellite communication module respectively with big-dipper satellite stipulations conversion processor, the big-dipper satellite communication module also is connected with SIM card, use the RS485 stipulations between 104 stipulations and big-dipper satellite stipulations conversion processor and parameter/configuration interface and the big-dipper satellite communication module, use the I2C stipulations between 104 stipulations and big-dipper satellite stipulations conversion processor and the EEPROM.The distribution substation is responsible for the power distribution automation of switching station/switchyard in the section and is implemented, and has remote measurement, Remote control " three is distant " function; Each case becomes outfit FTU/DTU, has fault detection capability and " three is distant " function, and FTU/DTU is connected with the big-dipper satellite communication module with the stipulations modular converter by Ethernet.Big Dipper intelligence distribution looped network substation system and each FTU/DTU communicate by Beidou satellite system.
The purpose of setting up the looped network control system is that the distribution substation is monitored the ruuning situation of this looped network, and can carry out reliable remote control.When this loop grid broke down, FTU/DTU recorded the fault messages such as fault current, then by the Big Dipper module fault message was sent to the distribution substation.Receive behind the fault message that Intelligent power distribution switch reports according to the current ruuning situation of system and circuit topological structure the distribution substation, carry out rapidly the automatic recovery of power supply of fault automatic location, automatic fault isolation and non-faulty section, thereby realize self diagnosis, the self-healing of this looped network.If this fault relates to the node that links to each other with other looped networks, perhaps this moment substation system be operated in the main website control mode, then substation system rapidly with fault information reportings such as fault currents to the distribution main website, main website makes a policy by distribution, find out the fault point, and provide effective isolated fault point scheme.
In the big-dipper satellite communication module powers at every turn, initiatively to the substation and main website report positional information one time; Main website and substation also can order Intelligent power distribution switch to report the position.Main website and substation system can show this positional information in Power Distribution GIS system.
" three is distant " comprises remote signalling, telemetry and telecommand.
Remote signalling: refer to that on-load switch divides, co-bit is put, earthed switch position, isolating switch position, local distant place block signal, SF6 gas pressure, band signal contact extinguisher and fault detector signal etc.The general standard scheme requires switch that 2 on-load switch positions, contact, 2 earthed switch positions are provided at least.Simultaneously, for the switch cubicle that fault detector has been installed, need to gather the fault detector signal.
Remote measurement: the three-phase electricity flow that refers to each switch.By for the line switch current transformer being installed, realize the measurement to the line electric current.The general standard scheme realizes the telemetering of current function of switch room and comprehensive room cable in-out cabinet and outgoing cabinet.For the transformer outgoing line cabinet that has in the comprehensive room, survey according to transformer low voltage whether distribution transformer monitoring and metering terminal (the needed information on load of power distribution automation can gather by the distribution transforming measuring terminal) is installed, determine whether and to carry out current measurement to such switch.
Remote control: closing operation is divided in the distant place of switch.For the switch room of realizing distant control function, be not that switches all in the room all needs to realize distant control function.General typical scheme only realizes distant control function to the switch of main point of incoming cables in the electric room and at the switch (having the switch that turns function of supplying power) of contact location, and other switches design according to two distant functions in the electric room.
Approximately transmit for the ease of the data lion indicator, need a kind of stipulations converting unit.This stipulations converting unit comprises: the entrance that calls the stipulations task; Create the stipulations data; Obtain the PI mission bit stream piHDRes of input: the stipulations title that obtains input indicates and operating path; Initialization stipulations data; The mission bit stream of output stipulations module; Output stipulations database; Addressing LINK bank interface also starts link; Registration stipulations message; The registration timer event; Stipulations main task operation processMSG, i.e. circulation gives out information, and distribution is carried out; The stipulations task withdraws from, releasing resource; The stipulations task finishes.Correspondingly, this stipulations converting unit comprises: entrance is used for for calling the stipulations task; The data creation module is used for creating the stipulations data; The information acquisition module is used for obtaining the PI mission bit stream piHDRes of input, and the stipulations title that obtains to input indicates and operating path; Initialization module is used for initialization stipulations data; Output module is for mission bit stream and the stipulations database of output stipulations module; The link startup module is used for addressing LINK bank interface and starts link; Registering modules is used for stipulations message and timer event; Stipulations main task operation module is used for circulation and gives out information, and distribution is carried out; Withdraw from module, be used for withdrawing from stipulations task, releasing resource; Finish module, be used for finishing the stipulations task.
The stipulations converting unit provides unified conventional data interactive interface, and this interface does not relate to the characteristic of various different stipulations, so this module can be on different platforms directly uses, and does not need to encode and debug.
On function, the realization of stipulations modular converter and external different devices communicating function make an explanation to various interconnected stipulations, and the data after the explanation are stored in the module with a kind of general stipulations data description form.
The stipulations modular converter provides respectively task management interface and data access interface, and the management function of task management Interface realization stipulations task comprises startup, data configuration, the management of multithreading task status of task, and resource is distributed release etc.; Data access interface comprises the read-write of all standardization stipulations data of access, stipulations database, transmitting-receiving and processing, the control command transmitting-receiving processing etc. of message informing event.
Realized the repertoire of stipulations tasks in the stipulations modular converter, comprised Universal gauge approximately access and the operation in data descriptor storehouse, stipulations are explained, to the resource transfer of operating system, hardware device, and realize task management interface and total data interactive interface etc.
The general structure of stipulations modular converter comprises the system object layer, realize whole stipulations frame foundation category information, both comprise the input/output argument interfaces such as utilization platform, platform interface task, task nurse, comprised again the input/output interface of information management, link channel management.Common data is described layer, realizes the conventional data description object, comprises the data processing and describes the storehouse.Be exactly link objects in addition, realize the link management to various stipulations.Link module realizes the processing procedure of various links, and finishes the management to passage.
In intelligence communication unit stipulations conversion equipment, can realize the mutual translation function of multiple communication protocol and Big Dipper stipulations.By physical device communications interface Ethernet or RS232/RS485 self-adapting serial port etc., access various intelligent communication devices, finish the mutual of information by this communication transfer interface module, thereby communicate by letter with Beidou satellite system, field data is passed to automation main website or terminal automatically, such as monitoring, various control centres etc., finish a distant place to communication and the monitoring of each intelligent communication device.
The above only is preferred implementation of the present invention, but protection range of the present invention is not limited to this.Any those skilled in the art all can carry out suitable change or variation to it in technical scope disclosed by the invention, and this change or variation all should be encompassed within protection scope of the present invention.
Claims (10)
1. intelligent distribution network systems based on Beidou satellite communication system, it is characterized in that, comprise distribution main website, distribution substation and distribution terminal, described distribution main website, distribution substation and distribution terminal are separately installed with the big-dipper satellite communication module, described distribution terminal is by Beidou satellite communication system and described distribution substation or described distribution master station communication, communicates by letter with described distribution main website or described distribution terminal by Beidou satellite communication system in described distribution substation.
2. intelligent distribution network systems according to claim 1 is characterized in that, described distribution substation and described distribution terminal also comprise the stipulations converting unit, is used for the stipulations conversion between realization satellite communication and the electric power local area network communication.
3. intelligent distribution network systems according to claim 1 is characterized in that, described distribution terminal reports position and the work information of self when powering on, and perhaps the indication according to described configuration main website reports position and work information.
4. intelligent distribution network systems according to claim 1 is characterized in that, described distribution terminal can be realized remote signalling, telemetry and telecommand.
5. intelligent distribution network systems according to claim 4 is characterized in that, described distribution terminal is finished remote measurement, remote signalling or remote control according to the control command that described distribution substation or described distribution main website issue by Beidou satellite communication system.
6. according to claim 4 or 5 described intelligent distribution network systems, it is characterized in that, described distribution terminal is sent to described distribution substation or described distribution main website with the floor data that gathers by Beidou satellite communication system.
7. intelligent distribution network systems according to claim 6 is characterized in that, described distribution terminal discontinuous to described distribution substation or described distribution main website send the data that gather.
8. intelligent distribution network systems according to claim 6 is characterized in that, described distribution terminal when running into fault immediately to described distribution substation or described distribution main website send fault parameter.
9. intelligent distribution network systems according to claim 8 is characterized in that, described distribution terminal adopts urgent location when running into fault mode immediately to described distribution substation or described distribution main website send fault warning.
10. intelligent distribution network systems according to claim 2, it is characterized in that, the stipulations converting unit comprises task management interface and data access interface, the management function of task management Interface realization stipulations task, data access interface realize the read-write of stipulations data access, stipulations database, transmitting-receiving and processing and the control command transmitting-receiving processing of message informing event.
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