CN1141772C - Directional cirrcuit longitudinal connection protection information exchange method and device thereof - Google Patents
Directional cirrcuit longitudinal connection protection information exchange method and device thereof Download PDFInfo
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- CN1141772C CN1141772C CNB011106220A CN01110622A CN1141772C CN 1141772 C CN1141772 C CN 1141772C CN B011106220 A CNB011106220 A CN B011106220A CN 01110622 A CN01110622 A CN 01110622A CN 1141772 C CN1141772 C CN 1141772C
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- 230000004224 protection Effects 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004891 communication Methods 0.000 claims abstract description 80
- 239000013307 optical fiber Substances 0.000 claims abstract description 33
- 230000001360 synchronised effect Effects 0.000 claims abstract description 33
- 230000003287 optical effect Effects 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 3
- 230000005693 optoelectronics Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 3
- 230000005622 photoelectricity Effects 0.000 description 3
- 238000013519 translation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
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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
- 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
- Y04S40/124—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 wired telecommunication networks or data transmission busses
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Abstract
The present invention relates to a directional circuit longitudinal connection protection information exchange method and a device thereof. Based on the existing microcomputer directional circuit protection, protecting devices having a computer communication function directly communicate through optical cables in a synchronous communication mode or directionally exchange longitudinal connection protection information in a microcomputer mode at both sides of an ultra-high voltage circuit through microwaves and an optical fiber PCM synchronous digital channel and exchange double-end distance measuring information, fault phase selection information, etc. In the method, when information exchange toward devices at both sides of the circuit is carried out by a multiple PCM microwave optical fiber communication device, the protecting devices at both sides of the circuit are connected with a pattern converting device, a PCM communication terminal and corresponding microwave optical fiber channels and optical cable channels. When special optical fibers and cables are used as channels for the information exchange, the protecting devices are connected with a photoelectric converting interface and optical cable channels special for optical fibers.
Description
The present invention relates to the relay protecting method and the device thereof of a kind of ultrahigh voltage power system transmission line.Relate in particular to a kind of microcomputer type directional cirrcuit longitudinal connection protection device and computer communication function thereof utilized,, finish the method and the device thereof of the information exchange between the pilot protection device of circuit both sides in the synchronous communication mode.
At present, extra high voltage network direction formula pilot protection is many finishes information exchange between the longitudinal differential protection system device by power-line carrier channel, wherein mainly is the relay tip information that circuit both sides pilot protection device is differentiated direction.Also there is PCM (the Pulse Code Modulation) interface that utilizes SDH or PDH digital microwave or optical-fibre channel to finish information exchange between the longitudinal differential protection system device; but still continue to use the mode that circuit both sides pilot protection device is differentiated the relay tip information of direction of transmitting; the information exchange content is few; relay status as intermediate link is difficult for monitoring, fails to make full use of the computer communication function that microcomputer type directional cirrcuit longitudinal connection protection device is had.
Because the microcomputer type directional cirrcuit longitudinal connection protection is widely used in electric power system; and it is also more extensive day by day than more reliable optical fiber of power line carrier and digital microwave communication in application on power system; utilize optical fiber and digital microwave communication to finish microcomputer type directional cirrcuit longitudinal connection protection function, seem even more important." relay protection of power system and automation equipment handbook (China Electric Power Publishing House, in January, 2000) have illustrated CAT50 type relaying protection Audio Interface Unit, the FOX-40 type relaying protection optical fiber communication interface arrangement that can utilize optical fiber and digital microwave communication to finish microcomputer type directional cirrcuit longitudinal connection protection function to document.Wherein, CAT50 type relaying protection Audio Interface Unit adopts duplex mode; FSK orders Audio Interface Unit more for multifrequency; it is converted to the 4kHz audio signal through power line carrier, optical fiber or microwave telecommunication devices transmission with a plurality of relaying protection command signals, can finish the requirement that utilizes optical fiber and digital microwave communication to finish microcomputer type directional cirrcuit longitudinal connection protection function.The external connection diagram of CAT50 type relaying protection Audio Interface Unit is seen Fig. 1.It is the passage medium that FOX-40 type relaying protection optical fiber communication interface arrangement can adopt voice band line; also can adopt 64kbits/S high-speed synchronous communication communication mode; adopt the special optic fibre optical cable as passage, or by 64kbits/S codirectional interface multiple connection PCM microwave, optical-fibre communications equipment.FOX-40 type relaying protection optical fiber communication interface arrangement output contact situation schematic diagram is seen Fig. 2.Although FOX-40 type relaying protection optical fiber communication interface arrangement can adopt 64kbits/S high-speed synchronous communication communication mode; all get in touch the computer communication function of not utilizing the microcomputer type directional cirrcuit longitudinal connection protection to be had between these two kinds of devices and the microcomputer type directional cirrcuit longitudinal connection protection by the relay contact mode.
The objective of the invention is; the computer communication function of utilizing the microcomputer type directional cirrcuit longitudinal connection protection to be had; with the synchronous communication communication mode, adopt the special optic fibre optical cable as passage, or multiple connection PCM microwave, optical-fibre communications equipment are finished the information exchange between the pilot protection device of circuit both sides.
Purpose of the present invention is realized by following scheme:
A kind of method that realizes the directional cirrcuit longitudinal connection protection information exchange; with microcomputer type directional cirrcuit longitudinal connection protection device with computer serial communication function; in the synchronous communication mode through light or be electrically connected to PCM (Pulse CodeModulation digital communication equipment) interface equipment after microwave, the mutual communication of optical fiber PCM digital channel; exchange trouble direction judged result realizes directional cirrcuit longitudinal connection protection.With above-mentioned pilot protection device, in the synchronous communication mode, can directly differentiate the result through the mutual communications exchange fault direction of optical cable digital channel, realize directional cirrcuit longitudinal connection protection; Utilize computer communication between the directional cirrcuit longitudinal connection protection device of supertension line both sides, exchange trouble point ranging information, faults such as exchange voltage, electric current are selected phase information and exchange transfer trip information.
Above-mentioned method is worked as directional cirrcuit longitudinal connection protection by multiple connection PCM microwave; when optical-fibre communications equipment is finished information exchange between the pilot protection device of circuit both sides; equipment is made up of three parts: the microcomputer type directional cirrcuit longitudinal connection protection device that promptly has the extra high voltage network both sides of serial communication interface and computer synchronous communication ability; connection can be converted to the computer synchronous communication data of microcomputer type directional cirrcuit longitudinal connection protection digital interface equipment and the PCM communicating terminal and the microwaves corresponding of the standard code type that the PCM communicating terminal received; the optical fiber cable passage.
When directional cirrcuit longitudinal connection protection adopts the special optic fibre optical cable to finish information exchange between the pilot protection device of circuit both sides as passage; its equipment is made up of two parts; the microcomputer type directional cirrcuit longitudinal connection protection device that promptly has the extra high voltage network both sides of serial communication interface and computer synchronous communication ability connects and will connect optical fiber special optical cable passage again behind the translation interface mutually between the computer synchronous communication data of microcomputer type directional cirrcuit longitudinal connection protection and the light signal.
The advantage that the present invention compared with prior art has is:
Method according to directional cirrcuit longitudinal connection protection information exchange of the present invention; extra high voltage network two side direction formula pilot protections are no longer finished via relay tip; but utilize its computer communication function of microcomputer type directional cirrcuit longitudinal connection protection device; in the synchronous communication mode, finish the information exchange between the pilot protection device of circuit both sides.Because two side direction formula pilot protection computer synchronous communications carry out in real time, the information exchange between the pilot protection device of circuit both sides also is under the real-time monitoring, does not exist relay status to be difficult to problems of monitoring, has improved reliability.Simultaneously, reduce intermediate link, both reduced project cost, also reduced maintenance workload.By extra high voltage network both sides microcomputer type directional cirrcuit longitudinal connection protection device computer synchronous communication, can also to offside send and receive send be used for the choosing of both-end distance measuring, fault mutually and information such as transfer trip, device performance is improved largely.
Below in conjunction with accompanying drawing embodiments of the invention are described in detail:
Fig. 1 is a CAT-50 type relaying protection Audio Interface Unit terminal connection layout
Fig. 2 is FOX-40 type relaying protection optical fiber communication interface arrangement output contact contact figure
Fig. 3 is the equipment connection side block diagram that three parts are formed for the present invention
Fig. 4 is the equipment connection side block diagram that two parts are formed for the present invention
Fig. 5 is the equipment connection side block diagram of Fig. 3 of the present invention, 4 combinations
Fig. 6 is the equipment connection side block diagram of specific embodiments of the invention
Work as shown in Figure 3 directional cirrcuit longitudinal connection protection and finish line by multiple connection PCM microwave, optical-fibre communications equipment During information exchange between the pilot protection device of both sides, road, formed by three equipment components altogether. 1. extra high voltage network The microcomputer type directional cirrcuit longitudinal connection protection of both sides, device have serial communication interface and computer synchronous communication energy Power; 2. pattern translation interface equipment turns to the computer synchronous communication data of microcomputer type directional cirrcuit longitudinal connection protection Be changed to the standard pattern that the PCM communicating terminal is accepted; 3. PCM communicating terminal and corresponding microwave, optical fiber cable Passage.
Wherein, the microcomputer type directional cirrcuit longitudinal connection protection device of extra high voltage network both sides can comprise different Principle, such as alternate, ground distance, the Sudden Changing Rate direction, zero sequence direction etc., the microcomputer type directional cirrcuit longitudinal connection is protected Protect the result that will differentiate and send and receive the fault direction differentiation result that offside is sent by the computer synchronous communication. Protect The principle of protecting can be continued to use permission formula logic OR enclosed type logic. When adopting permission formula logic, also can be as required, Set up the unlocking function in conjunction with computer synchronous communication situation. Simultaneously, can also send out by the computer synchronous communication Go out and receive that offside sends be used for the information such as both-end distance measuring, Fault Phase Selection.
Pattern translation interface equipment, its function are that the computer that the microcomputer type directional cirrcuit longitudinal connection protection is sent is synchronous Communication data is converted to the standard pattern that the PCM communicating terminal is accepted, and offside is sent out via the PCM communicating terminal The standard pattern of coming is converted to the computer synchronous communication data that the microcomputer type directional cirrcuit longitudinal connection protection can be identified.
The equipment such as PCM communicating terminal and corresponding microwave, optical fiber cable passage are general communication apparatus.
As shown in Figure 4: finish circuit two when directional cirrcuit longitudinal connection protection adopts the special optic fibre optical cable as passage During information exchange between the side pilot protection device, formed by two equipment components altogether. The extra high voltage network both sides Microcomputer type directional cirrcuit longitudinal connection protection, device have serial communication interface and computer synchronous communication ability; Photoelectricity/ Electrical-optical conversion interface, computer synchronous communication data and the optical signal of microcomputer type directional cirrcuit longitudinal connection protection is mutual Conversion; The optical fiber cable passage.
Embodiment:
As shown in Figure 5: be the microcomputer type line protective devices, be used to wherein realize that the monolithic computer of directional cirrcuit longitudinal connection protection has the computer communication interface.At present, can be equipped with the high frequency machine for receiving and emitting message of different manufacturers during microcomputer type directional cirrcuit longitudinal connection protection device is used, constitute the enclosed type longitudinal differential protection system.Or multiplexing phase one phase passage power line carrier, also have with FOX40 to cooperate, realize the engineering of directional cirrcuit longitudinal connection protection function by optical fiber PCM (Pulse code Modulation) passage.Getting in touch between microcomputer type directional cirrcuit longitudinal connection protection device and other communication apparatus all finished by relay tip.
This example is utilized the computer communication interface of microcomputer type directional cirrcuit longitudinal connection protection device monolithic computer, in computer synchronous communication mode, directly realizes the directional cirrcuit longitudinal connection protection function, and the device model is 101AS.That is, adopt the communication interface of the monolithic computer of directional cirrcuit longitudinal connection protection, will need the computer synchronous communication signal of information such as the vertical connection of exchange line direction to draw through communication interface; The electrical signal data that this device is sent converts light signal to, the light signal that receives is converted to the electrical signal data supplying apparatus receives.Photoelectricity, electric light conversion equipment, protection equipment next door.When adopting special optical cable, the light signal of circuit both sides transmitting-receiving is directly finished through special optical cable.When adopting multiple connection PCM microwave, optical-fibre communications equipment to finish information exchange between the pilot protection device of circuit both sides; carry out electric light, photoelectricity inverse transformation at communication machine room; the standard code type that corresponding electrical signal data and PCM communicating terminal are accepted is changed mutually simultaneously; through PCM communicating terminal and microwaves corresponding, optical fiber cable passage, finish computer synchronous communication between the microcomputer type directional cirrcuit longitudinal connection protection device of circuit both sides again.
Claims (7)
1, a kind of method that realizes the directional cirrcuit longitudinal connection protection information exchange; it is characterized in that: it comprises that the microcomputer type directional cirrcuit longitudinal connection protection device with computer serial communication function is in the synchronous communication mode; through light or be electrically connected to pcm interface unit after the microwave of SDH or PDH, optical fiber PCM digital channel intercom mutually; exchange trouble discriminating direction result realizes directional cirrcuit longitudinal connection protection.
2, according to the described method of claim 1, it is characterized in that: in the synchronous communication mode, directly intercom mutually through the optical cable digital channel, exchange trouble discriminating direction result realizes directional cirrcuit longitudinal connection protection.
3, according to the described method of claim 1, it is characterized in that: utilize computer communication between the directional cirrcuit longitudinal connection protection device of supertension line both sides, exchange trouble point ranging information.
4, according to the described method of claim 1, it is characterized in that: utilize computer communication between the directional cirrcuit longitudinal connection protection device of supertension line both sides, exchange trouble selects phase information.
5, according to the described method of claim 1, it is characterized in that: utilize computer communication between the directional cirrcuit longitudinal connection protection device of supertension line both sides, exchange transfer trip information.
6; device according to arbitrary method of one of claim 1-5; it is characterized in that: when directional cirrcuit longitudinal connection protection by multiple connection PCM microwave; when optical-fibre communications equipment is finished information exchange between the pilot protection device of circuit both sides; equipment is made of the microcomputer type directional cirrcuit longitudinal connection protection device of the extra high voltage network both sides that promptly have serial communication interface and computer synchronous communication ability three parts; connection can be converted to the computer synchronous communication data of microcomputer type directional cirrcuit longitudinal connection protection the digital interface equipment of the standard code type that the PCM communicating terminal received; and PCM communicating terminal and microwaves corresponding between them, the optical fiber cable passage.
7, according to the device of arbitrary method of one of claim 1-5; it is characterized in that: when directional cirrcuit longitudinal connection protection adopts the special optic fibre optical cable to finish information exchange between the pilot protection device of circuit both sides as passage; its equipment is made up of two parts, and the microcomputer type directional cirrcuit longitudinal connection protection device that promptly has the serial communication interface and extra high voltage network both sides of computer synchronous communication ability connects optical fiber special optical cable passage after being connected opto-electronic conversion interface with the computer synchronous communication data transaction light signal of microcomputer type directional cirrcuit longitudinal connection protection again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011106220A CN1141772C (en) | 2001-04-12 | 2001-04-12 | Directional cirrcuit longitudinal connection protection information exchange method and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011106220A CN1141772C (en) | 2001-04-12 | 2001-04-12 | Directional cirrcuit longitudinal connection protection information exchange method and device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1319931A CN1319931A (en) | 2001-10-31 |
| CN1141772C true CN1141772C (en) | 2004-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB011106220A Expired - Lifetime CN1141772C (en) | 2001-04-12 | 2001-04-12 | Directional cirrcuit longitudinal connection protection information exchange method and device thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106549707A (en) * | 2016-10-21 | 2017-03-29 | 南京南瑞继保电气有限公司 | A kind of method of pilot protection multiplex channel fault location |
| CN110350499B (en) * | 2019-07-24 | 2022-04-19 | 齐鲁工业大学 | Multi-terminal allowable directional pilot protection method and device for power transmission and distribution network |
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2001
- 2001-04-12 CN CNB011106220A patent/CN1141772C/en not_active Expired - Lifetime
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| CN1319931A (en) | 2001-10-31 |
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Owner name: BEIJING SIFANG JIBAO AUTOMATION CO., LTD. Free format text: FORMER OWNER: SIFANG TONGCHUANG PROTECTION AND CONTROL EQUIPMENT CO., LTD., BEIJING Effective date: 20040521 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20040521 Address after: 100085, No. four, nine street, information industry base, Haidian District, Beijing Patentee after: Beijing Sifang Jibao Automation Co., Ltd. Address before: 100085, No. four, nine street, information industry base, Haidian District, Beijing Patentee before: Sifang Tongchuang Protection and Control Equipment Co., Ltd. |
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Effective date of registration: 20190320 Address after: 100085 9, four street, Shang Di information industry base, Haidian District, Beijing. Co-patentee after: Beijing Sifang Jibao Engineering Technology Co., Ltd. Patentee after: Beijing Sifang Jibao Automation Co., Ltd. Address before: 100085, No. four, nine street, information industry base, Haidian District, Beijing Patentee before: Beijing Sifang Jibao Automation Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20040310 |
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| CX01 | Expiry of patent term |