CN103066702A - On-off controller based on key communications - Google Patents
On-off controller based on key communications Download PDFInfo
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- CN103066702A CN103066702A CN2013100073741A CN201310007374A CN103066702A CN 103066702 A CN103066702 A CN 103066702A CN 2013100073741 A CN2013100073741 A CN 2013100073741A CN 201310007374 A CN201310007374 A CN 201310007374A CN 103066702 A CN103066702 A CN 103066702A
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- relay protection
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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
- Y04S40/20—Information technology specific aspects, e.g. CAD, simulation, modelling, system security
Abstract
The invention discloses an on-off controller based on key communications. The on-off controller based on the key communications comprises a power acquisition unit, a relaying protection unit, a main control unit, a communication module and an encryption module. When a power line failure occurs, the main control unit controls the relaying protection unit to carry out relaying protection, and sends failure state signals to the encryption module. The encryption module encrypts the failure state signals, and then sends the failure state signals to the communication module to send outward. The on-off controller based on the key communications carries out encryption first before the main control unit sends the signals outward, data can be protected from being checked and modified after the encryption is carried out, and safe communication modes are helped to be supplied to an originally unsafe communication channel. On one hand, even though the data is intercepted, data information is difficult to obtain, on the other hand, the data received by a faraway automatic control system can be guaranteed to be reliable and credible, the automatic control system can complete the adjustment to the automation of distribution network, and a misoperation can not occur.
Description
Technical field
The present invention relates to the on-off controller in the electric power system.
Background technology
Current society is the information age, and along with the fast development of information technology, the intellectuality of power industry is more and more higher to the requirement of communication, still is important for the secret of information and Security of the system, and corresponding strick precaution solution must be arranged.Present on-off controller all is directly to send when outside the transmission of data, and this data are easy to be pretended to be by the third party or change, and cause concerning security matters or the misoperation of information, and the reliability of system is difficult to be protected.
Summary of the invention
For the problems referred to above; the invention provides a kind of on-off controller based on secret key communication; not only can realize at present required alternate protection with ground protection but also solve at present owing to communicate by letter unreliablely can not doing four distant problems, and upload the data to the power supply administration backstage and realize that four is distant: the scheduling of remote signalling, remote measurement, remote control, remote regulating realization distribution automation.
The present invention is that the technical scheme that its technical problem of solution adopts is:
On-off controller based on secret key communication comprises: the electric quantity acquisition unit, and the test side of electric quantity acquisition unit is connected to power line; Be used for realizing the Relay Protection Unit of relay protection function, the output of electric quantity acquisition unit is connected with Relay Protection Unit; Main control unit, main control unit are connected and process the protection logic of Relay Protection Unit with Relay Protection Unit, it is provided with signal sending end; Communication module and encrypting module, the signal sending end of main control unit is connected with communication module by encrypting module; When power line failure occured, main control unit control Relay Protection Unit was implemented relaying protection, and fault status signal is sent to encrypting module, delivers to communication module after encrypting module is encrypted fault status signal and outwards sends.
Wherein, described electric quantity acquisition unit comprises three phase current mutual inductors and a line voltage transformer, and the primary side of phase current mutual inductor and line voltage transformer is arranged on the power line, and secondary side is connected with Relay Protection Unit.
Described communication module comprises in GPRS module, GSM SMS module, ethernet interface module, the fiber interface module one or several.
The invention has the beneficial effects as follows: the present invention encrypts first when the outside transmitted signal of main control unit; can help protected data not checked and revise after the encryption; and can help provides safe communication mode at this unsafe channel; even these data are intercepted and captured and also are difficult to obtain data message on the one hand; can guarantee that on the other hand the data that the automation control system in a distant place receives are reliable and believable; automation control system can be finished scheduling to distribution automation based on the data of these encryptions, misoperation can not occur.
Description of drawings
Be further detailed below in conjunction with the drawings and specific embodiments:
Fig. 1 is that system of the present invention forms schematic diagram.
Embodiment
With reference to Fig. 1, on-off controller of the present invention comprises electric quantity acquisition unit 1, Relay Protection Unit, main control unit 3, communication module 4 and encrypting module 5.In addition, on-off controller can also further be provided with man-machine interaction unit etc., makes things convenient for the user that on-off controller is carried out execute-in-place.
Electric quantity acquisition unit 1 is used for the various electric weight of electric power system are detected; its test side is set directly on the power line; particularly; electric quantity acquisition unit 1 can comprise three phase current mutual inductors and a line voltage transformer; the primary side of phase current mutual inductor and line voltage transformer is arranged on the power line, and secondary side is connected with Relay Protection Unit 2.The electric quantity data that electric quantity acquisition unit 1 collects is sent into Relay Protection Unit 2, sends into main control unit 3 after 2 pairs of data of Relay Protection Unit are processed and carries out analyzing and processing.Main control unit 3 is controlled Relay Protection Unit 2 based on the result that analyzing and processing obtains, so that Relay Protection Unit 2 is realized protecting on the spot when fault occurs immediately.
When power line failure occured, main control unit 3 was implemented relaying protection except the control Relay Protection Unit, also fault status signal outwards can be sent, and generally sends to the power supply administration backstage.The present invention sends to encrypting module 4 with fault status signal, delivers to communication module 5 after encrypting module is encrypted fault status signal and outwards sends.Arranging of encrypting module 5 can be guaranteed maintaining secrecy of data.The cipher mode that this encrypting module 5 adopts can utilize existing various data encryption technology to realize.Data after these are encrypted send to the power supply administration backstage, obtain the fault status information of corresponding on-off controller after decipher it on the backstage, then realize the scheduling of distribution automation.Encryption can reach following purpose: confidentiality helps protection user's sign or data not to be read; Data integrity: help protected data not change; Authentication: guarantee that data are from a specific side.
In different embodiment, communication module 5 can realize in different ways, for example in GPRS module, GSM SMS module, ethernet interface module, the fiber interface module or several.
Embodiments of the present invention are not restricted to the described embodiments, as long as it reaches technique effect of the present invention with essentially identical means, all should belong to protection scope of the present invention.
Claims (3)
1. based on the on-off controller of secret key communication, it is characterized in that comprising:
Electric quantity acquisition unit (1), the test side of electric quantity acquisition unit (1) is connected to power line;
Be used for realizing the Relay Protection Unit (2) of relay protection function, the output of electric quantity acquisition unit (1) is connected with Relay Protection Unit (2);
Main control unit (3), main control unit (3) and Relay Protection Unit (2) are connected and process the protection logic of Relay Protection Unit (2), and it is provided with signal sending end;
Communication module (4) and encrypting module (5), the signal sending end of main control unit (3) is connected with communication module (4) by encrypting module (5);
When power line failure occurs; main control unit (3) control Relay Protection Unit (2) is implemented relaying protection; and fault status signal sent to encrypting module (5), deliver to communication module (4) after encrypting module (5) is encrypted fault status signal and outwards send.
2. the on-off controller based on secret key communication according to claim 1; it is characterized in that described electric quantity acquisition unit (1) comprises three phase current mutual inductors and a line voltage transformer; the primary side of phase current mutual inductor and line voltage transformer is arranged on the power line, and secondary side is connected with Relay Protection Unit (2).
3. the on-off controller based on secret key communication according to claim 1 is characterized in that described communication module (4) comprises in GPRS module, GSM SMS module, ethernet interface module, the fiber interface module one or several.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100073741A CN103066702A (en) | 2013-01-09 | 2013-01-09 | On-off controller based on key communications |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100073741A CN103066702A (en) | 2013-01-09 | 2013-01-09 | On-off controller based on key communications |
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| CN103066702A true CN103066702A (en) | 2013-04-24 |
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| CN2013100073741A Pending CN103066702A (en) | 2013-01-09 | 2013-01-09 | On-off controller based on key communications |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599927A (en) * | 2018-03-23 | 2018-09-28 | 北京智芯微电子科技有限公司 | The protective relaying device of integrated national secret algorithm security module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5694329A (en) * | 1994-01-11 | 1997-12-02 | Systems Analysis & Integration, Inc. | Power distribution system control network |
| CN101753612A (en) * | 2008-12-16 | 2010-06-23 | 深圳市科陆电子科技股份有限公司 | System and method for remotely monitoring power grid by utilizing reactive power compensation device |
| CN102315689A (en) * | 2011-09-01 | 2012-01-11 | 珠海博威智能电网有限公司 | Medium-voltage switch controller based on power line broadband carrier communication |
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2013
- 2013-01-09 CN CN2013100073741A patent/CN103066702A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5694329A (en) * | 1994-01-11 | 1997-12-02 | Systems Analysis & Integration, Inc. | Power distribution system control network |
| CN101753612A (en) * | 2008-12-16 | 2010-06-23 | 深圳市科陆电子科技股份有限公司 | System and method for remotely monitoring power grid by utilizing reactive power compensation device |
| CN102315689A (en) * | 2011-09-01 | 2012-01-11 | 珠海博威智能电网有限公司 | Medium-voltage switch controller based on power line broadband carrier communication |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599927A (en) * | 2018-03-23 | 2018-09-28 | 北京智芯微电子科技有限公司 | The protective relaying device of integrated national secret algorithm security module |
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Application publication date: 20130424 |