CN103533066A - Method for receiving, transmitting and synchronizing fiber longitudinal differential data through process level device - Google Patents
Method for receiving, transmitting and synchronizing fiber longitudinal differential data through process level device Download PDFInfo
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- CN103533066A CN103533066A CN201310494233.7A CN201310494233A CN103533066A CN 103533066 A CN103533066 A CN 103533066A CN 201310494233 A CN201310494233 A CN 201310494233A CN 103533066 A CN103533066 A CN 103533066A
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Abstract
The invention relates to a method for receiving, transmitting and synchronizing fiber longitudinal differential data through process level equipment, and belongs to the technical field of power systems. The process level equipment has the functions of a combining unit and an intelligent terminal, and can be used for realizing switching value acquisition of a circuit interval. The method comprises the following steps: uploading to a process level network through GOOSE, receiving a GOOSE command on the process level network, and realizing control of a circuit breaker and a disconnecting link of a circuit interval; receiving the digital quantity information or analog quantity information of a mutual inductor, receiving data of a fiber channel, synchronizing with local side data, and uploading to the process layer network via an SV sampling value; realizing exchange and sharing of switching quantity data on a local side and an opposite side inside the equipment. The method can be used for integrating the functions of the intelligent terminal, the combining unit and the fiber channel, so that the problem of realization of fiber differential of an intelligent substation is solved, the quantity of process layer devices is reduced, the field installation size is reduced, engineering design is simplified, and synchronization of data on the local side and the opposite side is realized easily and reliably inside the equipment.
Description
Technical field
The invention belongs to technical field of power systems, relate in particular to a kind of process layer device and realize optical-fiber longitudinal difference data transmit-receive and synchronous method, relate to transformer station process layer equipment, specifically a kind of process layer devices with vertical connection optical-fibre channel transmission-receiving function.
Background technology
Intelligent substation is a developing direction of transformer station in intelligent grid, the current typical 3-tier architecture of the many employings of intelligent substation: process layer, wall, station level, as shown in Figure 1, in IEC61850, the functions of the equipments in these three layers are had to clear and definite definition, wherein the equipment of process layer is mainly merge cells and intelligent terminal, merge cells completes the collection of analog quantity, and intelligent terminal completes the collection of switching value and the execution of controlled quentity controlled variable.
At present, merge cells and intelligent end device are all to organize respectively case, and independent is separately single functional device.In engineering practice, this mode has highlighted a lot of problems, such as information sharing difficulty, hardware setting repeat, device caloric value is large, floor space is large, debugging work load is large etc., these problems all restrict the development of this intelligent substation.Address these problems, just need useful new thinking to carry out the equipment of development process layer.
In tradition transformer station, the transmission-receiving function of the optical-fibre channel of circuit longitudinal differential protection and the acquisition function of this side data are all realized by protective device, protection need to synchronously realize differential protection this side data with to side data, and in intelligent substation, the acquisition function of this side data of protection is completed by merge cells, by giving protective device on process-level network, at present, the implementation of the traditional transformer station of the many continuities of implementation of the optical-fiber longitudinal difference protection in intelligent substation, the transmission-receiving function of optical-fibre channel is placed on to wall protection equipment to be completed, so just some problems have been brought: first, protective device will possess the ability of synchronous two side datas, what the SV data of sending on the combiner of this side being received received with optical-fibre channel synchronizes to side data, protective device just need to possess accurate time adjustment function and guarantees synchronization accuracy like this, need to increase corresponding hardware interface, increase the computational load of protective device simultaneously, then, under this pattern, owing to there being two time references, just must guarantee that merge cells and protective device are simultaneously in synchronous regime, just can open and protection, when any device lose synchronous after, necessary latch-up protection, prevents the protection malfunction causing because data are asynchronous.
Summary of the invention
For above-mentioned the deficiencies in the prior art part; the invention provides a kind of process layer device and realize optical-fiber longitudinal difference data transmit-receive and synchronous method; thought based on intelligent substation; object is that existing process layer devices information sharing is difficult in order to solve, circuit two side datas synchronously realize the problem that difficulty is large, a kind of implementation method of pilot wire relays in intelligent substation is provided simultaneously.
The present invention is achieved by the following technical solutions:
A kind of process layer device is realized optical-fiber longitudinal difference data transmit-receive and synchronous method, on process layer devices, to add optical-fiber longitudinal difference data transmit-receive hardware interface, can complete by special optic fibre passage the transmission-receiving function of optical-fiber longitudinal difference data, the relevant configuration definite value of optical-fibre channel is preserved on bay device, by passing to process layer devices under GOOSE message.
Described process layer devices possesses intelligent terminal and combiner function, can, at inner switching value information, the analog quantity information of obtaining this interval of device, also can obtain this side protection information from process-level network.
Described process layer devices is after getting the analog data of offside, synchronize with this side data, and according to IEC 61850-9 standard, after the sampled data of this side and offside is synchronous, be packaged into SMV Ethernet data and be sent to process-level network, for other equipment on network, share, the switching value information simultaneously getting can be by delivering to process-level network on GOOSE.
Described process layer devices can obtain this side protection information by process-level network, gathers switching value information and the analog quantity information at this interval, after data packing, by optical-fiber longitudinal difference data transmission interface, is sent to offside transformer station.
Described process layer devices is realized merge cells, intelligent terminal and optical-fibre channel data transmit-receive function in an equipment, and three functional modules are shared data by the pattern of intra-sharing internal memory, unique with the physical interface of process layer devices.
Described process layer devices includes merge cells module, optical fiber receiver-transmitter module, intelligent terminal module, switching value data memory module and GOOSE transceiver module.
Described optical fiber receiver-transmitter module can obtain this side analog data, switching value information, protection information and optical-fibre channel configuration information; Merge cells module can be obtained the offside analog data that this side analog data and optical-fibre channel receive, synchronous after by delivering to process-level network on SV; Intelligent terminal module has been used for the collection of this side switching value and the execution of controlled quentity controlled variable; The data that switching value data memory module is imported into for storing fiber optic transceiver module, intelligent terminal module and GOOSE transceiver module; The offside switching value information that GOOSE transceiver module unified management optical fiber receiver-transmitter module is just received and this side switching value information of intelligent terminal module, and a GOOSE information receiving is put into switching value data district confession intelligent terminal module and optical fiber receiver-transmitter module obtains.
The present invention has the following advantages and beneficial effect:
The present invention is owing to increasing optical-fiber longitudinal difference data transmit-receive hardware interface on process layer devices, can complete by special optic fibre passage the transmission-receiving function of optical-fiber longitudinal difference data, the relevant configuration definite value of optical-fibre channel is preserved on bay device, by passing to process layer devices under GOOSE message.Therefore, can be used for integrating the function of intelligent terminal, merge cells and optical-fibre channel, solve the problem of implementation of intelligent substation optical differential, reduce the number of process layer device, reduce installation dimension on the spot, simplify engineering design, and device interior realize this side with to the synchronizeing of side data, realize simple and reliable.
Accompanying drawing explanation
Fig. 1 is network system typical structure schematic diagram in existing intelligent substation;
Fig. 2 is the engineering application schematic diagram of process layer devices of the present invention;
Fig. 3 is the principle schematic of the embodiment of the present invention;
Fig. 4 is optical-fiber longitudinal difference data transmit-receive of the present invention and synchronization scheme.
Embodiment
The present invention is that a kind of process layer device is realized optical-fiber longitudinal difference data transmit-receive and synchronous method, wherein on process layer devices, increase optical-fiber longitudinal difference data transmit-receive hardware interface, can complete by special optic fibre passage the transmission-receiving function of optical-fiber longitudinal difference data, the relevant configuration definite value of optical-fibre channel is preserved on bay device, by passing to process layer devices under GOOSE message.
Process layer device possesses intelligent terminal and combiner function, can, at inner switching value information, the analog quantity information of obtaining this interval of device, also can obtain this side protection information from process-level network.
Process layer device is after getting the analog data of offside, synchronize with this side data, and according to IEC 61850-9 standard, after the sampled data of this side and offside is synchronous, be packaged into SMV Ethernet data and be sent to process-level network, for other equipment on network, share, the switching value information simultaneously getting can be by delivering to process-level network on GOOSE.
Process layer device can obtain this side protection information by process-level network, gathers switching value information and the analog quantity information at this interval, after data packing, by optical-fiber longitudinal difference data transmission interface, is sent to offside transformer station.
The specific embodiment of the invention as in Figure 2-4; apparatus of the present invention hardware using increases optical-fiber longitudinal difference data transmit-receive hardware interface on the process layer devices that possesses intelligent terminal, merge cells; can realize to greatest extent sharing of this interval data; guarantee that the data that send are in a clock zone, reduce the impact of step-out on protection.In hardware configuration, CPU card realizes the logic computing functions such as intelligent terminal, merge cells, and optical fiber interface plug-in unit is realized the coding and decoding function of fiber data.Optical-fiber longitudinal difference data transmit-receive hardware interface can be realized by the digital interface of special optic fibre passage or multiple connection PDH or SDH system the transmission-receiving function of fiber data.
The process layer devices with vertical connection optical-fibre channel transmission-receiving function is in an equipment, to realize merge cells, intelligent terminal and optical-fibre channel data transmit-receive function, three functional modules are shared data by the pattern of intra-sharing internal memory, as shown in Figure 3, this process layer devices is applicable to adopt the intelligent substation of IEC61850 standard to its structure.Process layer devices includes merge cells module, optical fiber receiver-transmitter module, intelligent terminal module, switching value data memory module and GOOSE transceiver module.Described optical fiber receiver-transmitter module can obtain this side analog data, switching value information, protection information and optical-fibre channel configuration information; Merge cells module can be obtained the offside analog data that this side analog data and optical-fibre channel receive, synchronous after by delivering to process-level network on SV; Intelligent terminal module has been used for the collection of this side switching value and the execution of controlled quentity controlled variable; The data that switching value data memory module is imported into for storing fiber optic transceiver module, intelligent terminal module and GOOSE transceiver module; The offside switching value information that GOOSE transceiver module unified management optical fiber receiver-transmitter module is just received and this side switching value information of intelligent terminal module, and a GOOSE information receiving is put into switching value data district confession intelligent terminal module and optical fiber receiver-transmitter module obtains.
The merge cells of process layer devices, intelligent terminal and optical-fibre channel functional module are carried out exchanges data by internal mechanism, unique with the physical interface of process-level network.
Because process layer devices is for installing on the spot; there is no friendly man-machine interface; do not possess definite value function is set on the spot; and the definite value of optical-fibre channel is a part for protection definite value; and the protective device of wall possesses definite value function; this definite value that has just determined optical-fibre channel need arrange on protective device, on process layer device, uses, and this just needs one passing to the mechanism of process layer device under protection definite value.The present invention adopts the mode of GOOSE transmission passing to process layer device under the definite value of protection; before the definite value passing under process layer device is not received protection, optical-fibre channel function, in wait state, waits to receive down the definite value passing; the optical-fibre channel that reinitializes, enters operating state.Protective device has stronger advantage at definite value setting party mask; therefore the definite value of the relevant setting option of optical-fibre channel arranges function and realizes at protective device; by passing to process layer devices under GOOSE message, before device is not also received the definite value passing down, use the operation of acquiescence definite value.
The engineering application of process layer devices in intelligent substation as shown in Figure 2.Process layer device is integrated the function of intelligent terminal, merge cells, optical-fibre channel, receive optical-fibre channel to side data after, the data that receive are unpacked, extract switching value and analog quantity wherein.Unpack rear switching value by delivering to process-level network on GOOSE, the markers that analog quantity is revised after calculating according to sampling deviation resamples, and completes the synchronous of analog quantity, synchronous after, be packaged as SV message up sending to process-level network, for protective device.GOOSE order on receiving course layer network, realizes the circuit breaker at an interval, the control of disconnecting link; Receive digital information or the analog quantity information of instrument transformer, after synchronously, deliver to process-level network on by SV; Receive the data of optical-fibre channel, after synchronously, deliver to process-level network on by SV; The analog data of this side is sent to opposite end by optical-fibre channel.Process layer devices gathers analog quantity information or the digital information of electronic mutual inductor, after synchronizeing, according to IEC61850-9 standard, becomes SMV Ethernet data to send multi-channel sampling information package with transformer substation system time service equipment, for other equipment on network, shares.Process layer devices is supported GOOSE transmitting-receiving service; possesses circuit longitudinal optical-fibre channel receiving function; can pass through real-time Simulation amount data, protection and the positional information of optical-fibre channel receiving lines offside; after the analog quantity receiving and this side are synchronous, according to the packing of IEC61850-9 standard, send to network; protection and positional information are sent to this side route protection by GOOSE message; can receive the GOOSE message of other devices, realize the intellectualized operation of primary equipment is controlled simultaneously.The frequency that process layer device needs by protection this side analog data is put into buffering area after resampling, and obtains the switching value information of this side simultaneously, after packing, by optical-fibre channel, is sent to offside.
Claims (7)
1. a process layer device is realized optical-fiber longitudinal difference data transmit-receive and synchronous method, it is characterized in that: on process layer devices, add optical-fiber longitudinal difference data transmit-receive hardware interface, can complete by special optic fibre passage the transmission-receiving function of optical-fiber longitudinal difference data, the relevant configuration definite value of optical-fibre channel is preserved on bay device, by passing to process layer devices under GOOSE message.
2. according to described a kind of process layer device of right 1, realize optical-fiber longitudinal difference data transmit-receive and synchronous method; it is characterized in that: described process layer devices possesses intelligent terminal and combiner function; can, at inner switching value information, the analog quantity information of obtaining this interval of device, also can obtain this side protection information from process-level network.
3. according to a kind of process layer device described in right 1, realize optical-fiber longitudinal difference data transmit-receive and synchronous method, it is characterized in that: described process layer devices is after getting the analog data of offside, synchronize with this side data, and according to IEC 61850-9 standard, after the sampled data of this side and offside is synchronous, be packaged into SMV Ethernet data and be sent to process-level network, for other equipment on network, share, the switching value information simultaneously getting can be by delivering to process-level network on GOOSE.
4. according to a kind of process layer device described in right 1, realize optical-fiber longitudinal difference data transmit-receive and synchronous method; it is characterized in that: described process layer devices can obtain this side protection information by process-level network; gather switching value information and the analog quantity information at this interval; after data packing, by optical-fiber longitudinal difference data transmission interface, be sent to offside transformer station.
5. according to a kind of process layer device described in right 1, realize optical-fiber longitudinal difference data transmit-receive and synchronous method, it is characterized in that: described process layer devices is realized merge cells, intelligent terminal and optical-fibre channel data transmit-receive function in an equipment, three functional modules are shared data by the pattern of intra-sharing internal memory, unique with the physical interface of process layer devices.
6. according to a kind of process layer device described in right 1, realize optical-fiber longitudinal difference data transmit-receive and synchronous method, it is characterized in that: described process layer devices includes merge cells module, optical fiber receiver-transmitter module, intelligent terminal module, switching value data memory module and GOOSE transceiver module.
7. according to a kind of process layer device described in right 6, realize optical-fiber longitudinal difference data transmit-receive and synchronous method, it is characterized in that: described optical fiber receiver-transmitter module can obtain this side analog data, switching value information, protection information and optical-fibre channel configuration information; Merge cells module can be obtained the offside analog data that this side analog data and optical-fibre channel receive, synchronous after by delivering to process-level network on SV; Intelligent terminal module has been used for the collection of this side switching value and the execution of controlled quentity controlled variable; The data that switching value data memory module is imported into for storing fiber optic transceiver module, intelligent terminal module and GOOSE transceiver module; The offside switching value information that GOOSE transceiver module unified management optical fiber receiver-transmitter module is just received and this side switching value information of intelligent terminal module, and a GOOSE information receiving is put into switching value data district confession intelligent terminal module and optical fiber receiver-transmitter module obtains.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106849032A (en) * | 2017-04-11 | 2017-06-13 | 许继集团有限公司 | A kind of extension of station domain differential protecting method and system for tackling loss of learning |
| CN110505259A (en) * | 2018-05-17 | 2019-11-26 | 许昌许继软件技术有限公司 | A kind of data processing method and device of intelligent substation |
| CN112421566A (en) * | 2020-11-10 | 2021-02-26 | 北京博阳慧源电力科技有限公司 | Pilot differential protection method based on Ethernet precision time protocol |
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| CN101841446A (en) * | 2010-05-25 | 2010-09-22 | 许继集团有限公司 | Pilot channel transmission device, optical fiber differential protective device and method |
| CN103051056A (en) * | 2012-11-29 | 2013-04-17 | 辽宁省电力有限公司朝阳供电公司 | Process level equipment with longitudinal optical fiber channel receiving and transmitting functions |
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| KR20000018539A (en) * | 1998-09-02 | 2000-04-06 | 서평원 | Method for recovering obstacle of data link between mobile switching center and network interlocking apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106849032A (en) * | 2017-04-11 | 2017-06-13 | 许继集团有限公司 | A kind of extension of station domain differential protecting method and system for tackling loss of learning |
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| CN110505259A (en) * | 2018-05-17 | 2019-11-26 | 许昌许继软件技术有限公司 | A kind of data processing method and device of intelligent substation |
| CN112421566A (en) * | 2020-11-10 | 2021-02-26 | 北京博阳慧源电力科技有限公司 | Pilot differential protection method based on Ethernet precision time protocol |
| CN112421566B (en) * | 2020-11-10 | 2022-06-17 | 北京博阳慧源电力科技有限公司 | Pilot differential protection method based on Ethernet precision time protocol |
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Application publication date: 20140122 |