CN101841446B - Pilot channel transmission device, optical fiber differential protective device and method - Google Patents
Pilot channel transmission device, optical fiber differential protective device and method Download PDFInfo
- Publication number
- CN101841446B CN101841446B CN2010101820955A CN201010182095A CN101841446B CN 101841446 B CN101841446 B CN 101841446B CN 2010101820955 A CN2010101820955 A CN 2010101820955A CN 201010182095 A CN201010182095 A CN 201010182095A CN 101841446 B CN101841446 B CN 101841446B
- Authority
- CN
- China
- Prior art keywords
- vertical
- differential protection
- transmission apparatus
- vertical unicom
- network switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention relates to a pilot channel transmission device, a pilot channel optical fiber differential protective device and a pilot channel optical fiber differential protective method, and belongs to the technical field of relay protection of electric power systems. The pilot channel optical fiber differential protective device comprises a merging unit, a pilot channel transmission device, differential protective devices, a fault wave recording device, an SMV network switch and a GOOSE network switch, wherein the GOOSE network switch is respectively connected with the pilot channel transmission device, the differential protective devices and the fault wave recording device; the merging unit, the differential protective devices, the pilot channel transmission device and the fault wave recording device are connected to the SMV network switch through an optical fiber interface; the pilot channel transmission device realizes the synchronous sampling of a home station and a transformer substation on the opposite side, and outputs sampling values of the transformer substation on the opposite side to the SMV network switch; and data with different formats is transformed by using a converter according to requirements, so that manufacturers of the differential protective devices at both ends of a transmission line do not need to be limited, and the compatibility of the protective devices is improved.
Description
Technical field
The present invention relates to vertical UNICOM pipeline transmission apparatus, fiber differential protection device and method; Belong to the relay protection of power system technical field, especially in the digital transformer substation that adopts electronic current, voltage transformer based on the application in the electric substation automation system of IEC61850 standard communication protocol.
Background technology
The fibre-optic current differential protection is with its simple protection philosophy and the good increasing main protection that is adopted to high pressure and ultra high-tension transmission line of performance characteristic.The electric current of respectively holding that current differential protection requires to participate in differential current calculating must be sampled at synchronization.The both-end electric current that the differential protection of transmission line is participated in calculating is in the double sampling value that is positioned at transmission line two ends current transformer, far need the electric current double sampling value of both sides be transferred to an other side through optical-fibre channel owing to be separated by.The double sampling of both-end electric current is not to accomplish at same device, so requirement need be carried out the sampling of both-end electric current perhaps to calculate the deviation of sampling instant so that carry out phase compensation synchronously.
Based on the fibre-optic current differential protection implementation method of electromagnetic current transducer is that sampling, transmission and the data sync of secondary current accomplished by same device (CPU).The function of differential protection comprises sampling and the transmission of accomplishing this side data, and reception is to side data and carry out the computing of sample-synchronous (or phase place correction) and differential protection logic.Vertical join data that optical-fibre channel transmits be differential protection can sample of ac and switching value numerical value.Because vertical data transmission format and the content that joins optical-fibre channel of each makers' fiber differential protection device has nothing in common with each other, and causes the optical fiber differential protective at transmission line two ends must adopt same makers' device.
What in digital transformer substation, adopt is electronic type voltage, current transformer; The sampling of secondary digital signal amount is accomplished by merge cells; Merge cells is exported the sampled data that meets IEC61850-9-2 stipulations standard to the process layer network, and fiber differential protection device receives the sample information of digital quantity through network.
When transmission line is T wiring branched line or a plurality of branched line,, need the protective device of each side to carry out point-to-point optical-fibre communications with other side in order to accomplish optical fiber differential protective.Branch's number of circuit is different, and then each device needs the optical communication interface of varying number to accomplish Data Receiving and transmission, and the hardware of protective device is difficult to unified, poor compatibility.
Summary of the invention
The purpose of this invention is to provide a kind of vertical UNICOM pipeline transmission apparatus that is independent of differential protection and has transformer station's both sides sample-synchronous function.
Another object of the present invention provides a kind of vertical UNICOM road fiber differential protection device; To solve owing to the data transmission format and the content of vertical couplet optical-fibre channel are inequality; And the fiber differential protection device at restriction transmission line two ends must adopt same makers' device, makes the problem of hardware compatibility difference of protective device.
The 3rd purpose of the present invention provides a kind of vertical UNICOM road optical fibre differential protection method, to realize the sample-synchronous and the differential protection function of vertical UNICOM road fiber differential protection device.
Vertical UNICOM of the present invention pipeline transmission apparatus technical scheme is following, and this device comprises:
CPU card; In be provided with process layer data processing unit and the vertical data processing unit that joins; Said process layer data processing unit is used for the transmitting-receiving of transformer station's station internal procedure layer data and the transmitting-receiving of synchronous and wall data through Ethernet interface respectively, and said vertical data processing unit is used for handling with the data transmit-receive of indulging the UNICOM road;
Optical-electrical converter, being used for the serial electric signal data transaction is that light signal is sent to the external fiber passage or the signal of telecommunication that the light signal of optical-fibre channel converts serial into is input to CPU card;
Protocol converter is used for the serial data and the G703/E1 standard agreement data of CPU card are changed;
Said optical-electrical converter links to each other with CPU card respectively with protocol converter.
Further, also comprise pulse converter, this pulse converter links to each other with CPU card, be used for external fiber pulse or IEC1588 network to the time pulse input convert the hardware interrupts input of CPU card into.
Further, when the SMV of transformer station network and GOOSE network common network, at least one Ethernet interface is set; When the SMV of transformer station network and the networking of GOOSE network difference, at least two Ethernet interfaces accordingly are set.
Vertical UNICOM of the present invention road fiber differential protection device technical scheme is following, and this device comprises:
Merge cells after being used to receive the signal of electronic current, voltage transformer, carries out double sampling according to sampling synchronization pulse to instrument transformer, exports standard compliant sampled value information to the SMV network switch;
Vertical UNICOM pipeline transmission apparatus comprises CPU card, optical-electrical converter and protocol converter, is provided with process side data processing unit and the vertical data processing unit that joins in the said CPU card; Vertical UNICOM duct device links to each other with the vertical optical-fibre channel that joins through optical-electrical converter; Link to each other with the SDH network through protocol converter; Ethernet interface through process layer data processing unit links to each other with the SMV network switch; This device is used to realize the sample-synchronous of our station and offside transformer station, and exports standard compliant offside transformer station sampled value information to the SMV network switch;
Differential protection is used for from the SMV network switch, receiving simultaneously the sampled value information that merge cells and vertical UNICOM road send, and the sampled value of identical sampling sequence number is carried out the computing of differential current, stalling current and differential protection logic;
Fault wave recording device; Be used for receiving the our station sampled data, receive offside transformer station and transmit sampled value, after line failure through Synchronous Processing from the SMV network switch; Sampled data during through analysis circuit both sides fault, whether differentiate the relaying protection the result of the action correct;
The SMV network switch is used to receive merge cells and joins the sampled value information that transmission channel is sent with vertical, and information is reached differential protection, is used for the sampled value information of merge cells is sent to vertical UNICOM pipeline transmission apparatus;
The GOOSE network switch is used to receive the GOOSE information that vertical UNICOM pipeline transmission apparatus sends, and it is reached differential protection and fault wave recording device;
The GOOSE network switch links to each other with fault wave recording device with vertical UNICOM pipeline transmission apparatus, differential protection respectively; Merge cells, differential protection, vertical UNICOM pipeline transmission apparatus, fault wave recording device all are connected on the SMV network switch through optical fiber interface.
Further, also comprise jumping protective device far away, link to each other that the GOOSE information that is used for sending according to the GOOSE network switch is carried out telemechanical protection action with the GOOSE network switch.
Further; Said vertical UNICOM pipeline transmission apparatus is provided with at least one; Each vertical UNICOM pipeline transmission apparatus is used for the sample-synchronous of an our station merge cells and an offside circuit merge cells; If N end line differential protection, a N-1 vertical UNICOM's pipeline transmission apparatus of then every side configuration and a cover differential protection.
Vertical UNICOM of the present invention road optical fibre differential protection method is used for vertical UNICOM road fiber differential protection device, comprises step:
(a) after merge cells receives the signal of electronic current, voltage transformer, instrument transformer is carried out double sampling, export standard compliant sampled value information to the SMV network switch according to the sampling synchronization pulse signal;
(b) after the inner CPU card of vertical UNICOM's pipeline transmission apparatus is sampled through optical-electrical converter and protocol converter, adopt trapezoidal algorithm and interpolation double sampling technology to realize our station and offside transformer station sample-synchronous;
(c) differential protection receives the sampled value information that merge cells and vertical UNICOM pipeline transmission apparatus send from the SMV network switch simultaneously; The sampled value of identical sampling sequence number is carried out the computing of differential current, stalling current and differential protection logic, and vertical UNICOM pipeline transmission apparatus sends sampled value information through the Ethernet interface of process layer data processing unit to the SMV network switch.
Further; Vertical UNICOM pipeline transmission apparatus detects vertical UNICOM road state through the vertical data processing unit that joins in real time; When vertical UNICOM road occurs when unusual, produce GOOSE information, through process layer data processing unit GOOSE information is sent to the GOOSE network; Differential protection receives the vertical UNICOM unusual GOOSE signal in road from the GOOSE network, and the differential protection logic is carried out real-time locking.
Further, vertical UNICOM's pipeline transmission apparatus realization our station and offside transformer station sample-synchronous step are following: vertical UNICOM pipeline transmission apparatus inserts the Synchronous Sampling Pulse signal with the same source of our station merge cells; The sampling instant of sending our station data message time and merge cells is synchronous, the deviation time of using the merge cells sampling instant of trapezoidal algorithm computation our station and offside transformer station; Vertical UNICOM pipeline transmission apparatus receives that offside transformer station comprises the sampled value information of sampled value and sample code; The deviation time according to the sampling instant of both sides transformer station is carried out the interpolation double sampling to the sampled value of offside transformer station; Reach the both sides sampled data and approach the purpose that synchronization is gathered, and accomplish the sample-synchronous function.
Further, said sampling pulse signal be optical fiber pulse or IEC1588 network to the time signal.
Vertical UNICOM of the present invention pipeline transmission apparatus is the device that is independent of differential protection; Have the both sides of making transformer station sample-synchronous function in use, like this with regard to need not because differential protection is changed vertical UNICOM pipeline transmission apparatus simultaneously to the difference of data transmission format and content.
Vertical UNICOM's road fiber differential protection device of the present invention and method; Owing to be provided with the vertical UNICOM pipeline transmission apparatus that is independent of differential protection; This device is realized the sample-synchronous of our station and offside transformer station, and exports standard compliant offside transformer station sampled value information to the SMV network switch, can as required the data of different transpost formats be changed with transducer; So just needn't require the transmission line two ends to adopt the differential protection of same producer, improve the compatibility of protective device.
When being applied to the differential protection of multiterminal transmission line; Transformer station disposes a plurality of vertical UNICOMs pipeline transmission apparatus; Each vertical UNICOM pipeline transmission apparatus is accomplished the transfer of data of our station and the channel attached transformer station of vertical couplet with synchronously, and differential protection receives the SMV sampled signal that a plurality of vertical UNICOMs pipeline transmission apparatus sends, the computing of completion differential current, stalling current and differential logic; So just make that multiterminal transmission line fiber differential protection device is same hardware platform, realize simply, be easy to expansion.
Description of drawings
Fig. 1 is a vertical UNICOM of the present invention pipeline transmission apparatus structural representation;
Fig. 2 is road fiber differential protection device structure one figure of vertical UNICOM of the present invention;
Fig. 3 is road fiber differential protection device structure two figure of vertical UNICOM of the present invention.
Embodiment
The present invention with each SMV network and GOOSE network at interval in the digital transformer substation respectively networking model be that example describes.
Vertical UNICOM of the present invention pipeline transmission apparatus is as shown in Figure 1, comprising:
CPU card; In be provided with process layer data processing unit and the vertical data processing unit that joins; Said process layer data processing unit is used for the transmitting-receiving of transformer station's station internal procedure layer data and the transmitting-receiving of synchronous and wall data through Ethernet interface respectively, and said vertical data processing unit is used for handling with the data transmit-receive of indulging the UNICOM road;
Optical-electrical converter, being used for the serial electric signal data transaction is that light signal is sent to the external fiber passage or the signal of telecommunication that the light signal of optical-fibre channel converts serial into is input to CPU card;
Protocol converter is used for the serial data and the G703/E1 standard agreement data of CPU card are changed;
Pulse converter, this pulse converter links to each other with CPU card, be used for external fiber pulse or IEC1588 network to the time pulse input convert the hardware interrupts input of CPU card into;
Said optical-electrical converter, protocol converter and pulse converter link to each other with CPU card respectively.
When the SMV of transformer station network and GOOSE network common network, at least one Ethernet interface is set; When the SMV of transformer station network and the networking of GOOSE network difference; As shown in Figure 1 two Ethernet interfaces are set; An Ethernet interface inserts the process layer network of transformer station, receives circuit secondary current sampling numerical value and secondary voltage sampling numerical value with IEC61850-9-2 stipulations standard to describe; Another Ethernet interface inserts in the wall network of transformer station, receives the GOOSE information that each need send to offside transformer station, and will send on the network with the GOOSE information pattern from the quantity of state that offside transformer station receives.
Vertical UNICOM of the present invention road fiber differential protection device is as shown in Figure 2, and this device comprises:
Merge cells after being used to receive the signal of electronic current, voltage transformer, carries out double sampling according to sampling synchronization pulse to instrument transformer, meets the sampled value information of IEC61850-9-2G stipulations standard to the output of the SMV network switch;
Vertical UNICOM pipeline transmission apparatus comprises CPU card, optical-electrical converter and protocol converter, is provided with process side data processing unit and the vertical data processing unit that joins in the said CPU card; Vertical UNICOM duct device links to each other with the vertical optical-fibre channel that joins through optical-electrical converter; Link to each other with the SDH network through protocol converter; Ethernet interface through process layer data processing unit links to each other with the SMV network switch; This device is used to realize the sample-synchronous of our station and offside transformer station, and exports standard compliant offside transformer station sampled value information to the SMV network switch;
Differential protection is used for from the SMV network switch, receiving simultaneously the sampled value information that merge cells and vertical UNICOM road send, and the sampled value of identical sampling sequence number is carried out the computing of differential current, stalling current and differential protection logic;
Fault wave recording device; Be used for receiving the our station sampled data, receive offside transformer station and transmit sampled value, after line failure through Synchronous Processing from the SMV network switch; Sampled data during through analysis circuit both sides fault, whether differentiate the relaying protection the result of the action correct;
The SMV network switch is used to receive merge cells and joins the sampled value information that transmission channel is sent with vertical, and information is reached differential protection, is used for the sampled value information of merge cells is sent to vertical UNICOM pipeline transmission apparatus;
The GOOSE network switch is used to receive the GOOSE information that vertical UNICOM pipeline transmission apparatus sends, and it is reached differential protection and fault wave recording device;
The protective device of jumping far away links to each other with the GOOSE network switch, and the GOOSE information that is used for sending according to the GOOSE network switch is carried out telemechanical protection action;
The GOOSE network switch links to each other with fault wave recording device with vertical UNICOM pipeline transmission apparatus, differential protection respectively; Merge cells, differential protection, vertical UNICOM pipeline transmission apparatus, fault wave recording device all are connected on the SMV network switch through optical fiber interface.
Another vertical UNICOM road fiber differential protection device of the present invention is as shown in Figure 3, and this device comprises:
Merge cells after being used to receive the signal of electronic current, voltage transformer, carries out double sampling according to sampling synchronization pulse to instrument transformer, exports standard compliant sampled value information to the SMV network switch;
Vertical UNICOM pipeline transmission apparatus 1 and vertical UNICOM pipeline transmission apparatus 2, each vertical UNICOM pipeline transmission apparatus all comprises CPU card, optical-electrical converter and protocol converter, is provided with process side data processing unit and the vertical data processing unit that joins in the said CPU card; Two vertical UNICOM duct devices link to each other with the vertical optical-fibre channel 2 that joins with the vertical optical-fibre channel 1 that joins through optical-electrical converter respectively; The sampled value information and the complete message frame of quantity of state information composition that are used for this side need be sent are sent to offside transformer station; Two vertical UNICOM duct devices link to each other with the SDH network through protocol converter respectively; The message frame of this side is sent to offside transformer station; Ethernet interface through process layer data processing unit links to each other with the SMV network switch, and this device is used to realize the sample-synchronous of our station and offside transformer station, and exports standard compliant offside transformer station sampled value information to the SMV network switch;
Differential protection is used for from the SMV network switch, receiving simultaneously the sampled value information that merge cells and vertical UNICOM road send, and the sampled value of identical sampling sequence number is carried out the computing of differential current, stalling current and differential protection logic;
Fault wave recording device; Be used for receiving the our station sampled data, receive offside transformer station and transmit sampled value, after line failure through Synchronous Processing from the SMV network switch; Sampled data during through analysis circuit both sides fault, whether differentiate the relaying protection the result of the action correct;
The SMV network switch is used to receive merge cells and joins the sampled value information that transmission channel is sent with vertical, and information is reached differential protection, is used for the sampled value information of merge cells is sent to vertical UNICOM pipeline transmission apparatus;
The GOOSE network switch is used to receive the GOOSE information that vertical UNICOM pipeline transmission apparatus sends, and it is reached differential protection and fault wave recording device;
The protective device of jumping far away links to each other with the GOOSE network switch, and the GOOSE information that is used for sending according to the GOOSE network switch is carried out telemechanical protection action;
The GOOSE network switch links to each other with fault wave recording device with vertical UNICOM pipeline transmission apparatus, differential protection respectively; Merge cells, differential protection, vertical UNICOM pipeline transmission apparatus, fault wave recording device all are connected on the SMV network switch through optical fiber interface.
The number of vertical UNICOM pipeline transmission apparatus is two in the present embodiment; But be not limited to two; Each vertical UNICOM pipeline transmission apparatus is used for the sample-synchronous of an our station merge cells and an offside circuit merge cells; If N end line differential protection, a N-1 vertical UNICOM's pipeline transmission apparatus of then every side configuration and a cover differential protection.
Vertical UNICOM of the present invention road optical fibre differential protection method is used for vertical UNICOM road fiber differential protection device, and method is following:
Merge cells in the vertical UNICOM of the present invention road fiber differential protection device, differential protection, vertical UNICOM pipeline transmission apparatus, fault wave recording device all are connected on the SMV network switch through optical fiber interface; The GOOSE network switch links to each other with fault wave recording device with vertical UNICOM pipeline transmission apparatus, differential protection respectively; Vertical data processing unit in the CPU card of vertical UNICOM pipeline transmission apparatus is connected into optical-fibre channel and SDH network through optical-electrical converter, G703/e1-U protocol converter respectively, and process layer data processing unit links to each other with the GOOSE network switch with the SMV network switch through IEC61850-9-2, GOOSE Ethernet interface respectively.
After merge cells receives the signal of electronic current, voltage transformer; According to the sampling synchronization pulse signal instrument transformer is carried out double sampling; Meet the sampled value information of IEC61850-9-2 stipulations standard to SMV network switch output, said sampling pulse signal be optical fiber pulse or IEC1588 network to the time; Vertical UNICOM pipeline transmission apparatus is through the Synchronous Sampling Pulse signal of pulse converter access with the same source of our station merge cells; Vertical UNICOM pipeline transmission apparatus receives the sample information of merge cells from the SMV network switch through the IEC61850-9-2 Ethernet interface; Read configuration information as shown in table 1 below; Identification needs the sampled value of transmission; The sampling instant of sending our station data message time and merge cells is synchronous, the deviation time of using the merge cells sampling instant of trapezoidal algorithm computation our station and offside transformer station;
Table 1 configuration information
Vertical UNICOM pipeline transmission apparatus receives transformer station's sampled value information information as shown in table 2 below that offside comprises sampled value and sample code from vertical UNICOM road; The deviation time according to the sampling instant of both sides transformer station is carried out the interpolation double sampling to the sampled value of offside transformer station; Reach synchronous, meet the offside transformer station sampled value information of IEC61850-9-2 stipulations standard to the output of the SMV network switch with the our station sampled data; Differential protection receives the sampled value information that merge cells and vertical UNICOM pipeline transmission apparatus send from the SMV network switch simultaneously; Vertical UNICOM pipeline transmission apparatus sends sampled value information through the Ethernet interface of process layer data processing unit to the SMV network switch, and differential protection carries out the computing of differential current, stalling current and differential protection logic to the sampled value of identical sampling sequence number; Vertical UNICOM pipeline transmission apparatus detects vertical UNICOM road state in real time; When vertical UNICOM road occurs when unusual, produce GOOSE information, be sent to the GOOSE network; Differential protection receives the vertical UNICOM unusual GOOSE signal in road from the GOOSE network, and the differential protection logic is carried out real-time locking.
Table 2
Claims (8)
1. vertical UNICOM pipeline transmission apparatus is characterized in that this device comprises:
CPU card; In be provided with process layer data processing unit and the vertical data processing unit that joins; Said process layer data processing unit is used for the transmitting-receiving of transformer station's station internal procedure layer data and the transmitting-receiving of synchronous and wall data through Ethernet interface respectively, and said vertical data processing unit is used for the data transmit-receive in vertical UNICOM road to be handled;
Optical-electrical converter, being used for the serial electric signal data transaction is that light signal is sent to the external fiber passage or the signal of telecommunication that the light signal of optical-fibre channel converts serial into is input to CPU card;
Protocol converter is used for the serial data and the G703/E1 standard agreement data of CPU card are changed; Pulse converter, this pulse converter links to each other with CPU card, be used for external fiber pulse or IEC1588 network to the time pulse input convert the hardware interrupts input of CPU card into;
Said optical-electrical converter links to each other with CPU card respectively with protocol converter.
2. vertical UNICOM according to claim 1 pipeline transmission apparatus is characterized in that: when the SMV of transformer station network and GOOSE network common network, at least one Ethernet interface is set; When the SMV of transformer station network and the networking of GOOSE network difference, at least two Ethernet interfaces accordingly are set.
3. vertical UNICOM road fiber differential protection device is characterized in that this device comprises:
Merge cells after being used to receive the signal of electronic current, voltage transformer, carries out double sampling according to sampling synchronization pulse to instrument transformer, exports standard compliant sampled value information to the SMV network switch;
Vertical UNICOM pipeline transmission apparatus comprises CPU card, optical-electrical converter and protocol converter, is provided with process layer data processing unit and the vertical data processing unit that joins in the said CPU card; Vertical UNICOM pipeline transmission apparatus links to each other with the vertical optical-fibre channel that joins through optical-electrical converter; Link to each other with the SDH network through protocol converter; Ethernet interface through process layer data processing unit links to each other with the SMV network switch; This device is used to realize the sample-synchronous of our station and offside transformer station, and exports standard compliant offside transformer station sampled value information to the SMV network switch;
Differential protection is used for from the SMV network switch, receiving simultaneously the sampled value information that merge cells and vertical UNICOM road send, and the sampled value of identical sampling sequence number is carried out the computing of differential current, stalling current and differential protection logic;
Fault wave recording device; Be used for receiving the our station sampled data, receive offside transformer station and transmit sampled value, after line failure through Synchronous Processing from the SMV network switch; Sampled data during through analysis circuit both sides fault, whether differentiate the relaying protection the result of the action correct;
The SMV network switch is used to receive the sampled value information that merge cells and vertical UNICOM road send, and information is reached differential protection, is used for the sampled value information of merge cells is sent to vertical UNICOM pipeline transmission apparatus;
The GOOSE network switch is used to receive the GOOSE information that vertical UNICOM pipeline transmission apparatus sends, and it is reached differential protection and fault wave recording device;
The GOOSE network switch links to each other with fault wave recording device with vertical UNICOM pipeline transmission apparatus, differential protection respectively; Merge cells, differential protection, vertical UNICOM pipeline transmission apparatus, fault wave recording device all are connected on the SMV network switch through optical fiber interface.
4. vertical UNICOM according to claim 3 road fiber differential protection device is characterized in that: also comprise jumping protective device far away, link to each other with the GOOSE network switch that the GOOSE information that is used for sending according to the GOOSE network switch is carried out telemechanical protection action.
5. vertical UNICOM according to claim 4 road fiber differential protection device; It is characterized in that: said vertical UNICOM pipeline transmission apparatus is provided with at least one; Each vertical UNICOM pipeline transmission apparatus is used for the sample-synchronous of an our station merge cells and an offside circuit merge cells; If N end line differential protection, a N-1 vertical UNICOM's pipeline transmission apparatus of then every side configuration and a cover differential protection.
6. a vertical UNICOM road optical fibre differential protection method is characterized in that, this method is used for vertical UNICOM road fiber differential protection device, comprises step:
(a) after merge cells receives the signal of electronic current, voltage transformer, instrument transformer is carried out double sampling, export standard compliant sampled value information to the SMV network switch according to the sampling synchronization pulse signal;
(b) after the inner CPU card of vertical UNICOM's pipeline transmission apparatus is sampled through optical-electrical converter and protocol converter, adopt trapezoidal algorithm and interpolation double sampling technology to realize our station and offside transformer station sample-synchronous;
(c) differential protection receives the sampled value information that merge cells and vertical UNICOM pipeline transmission apparatus send from the SMV network switch simultaneously; The sampled value of identical sampling sequence number is carried out the computing of differential current, stalling current and differential protection logic, and vertical UNICOM pipeline transmission apparatus sends sampled value information through the Ethernet interface of process layer data processing unit to the SMV network switch;
Vertical UNICOM pipeline transmission apparatus detects vertical UNICOM road state through the vertical data processing unit that joins in real time; When vertical UNICOM road occurs when unusual; Produce GOOSE information; Through process layer data processing unit GOOSE information is sent to the GOOSE network, differential protection receives the vertical UNICOM unusual GOOSE signal in road from the GOOSE network, and the differential protection logic is carried out real-time locking.
7. vertical UNICOM according to claim 6 road optical fibre differential protection method; It is characterized in that vertical UNICOM pipeline transmission apparatus realization our station and offside transformer station sample-synchronous step are following: vertical UNICOM pipeline transmission apparatus inserts the sampling synchronization pulse signal with the same source of our station merge cells; The sampling instant of sending our station data message time and merge cells is synchronous, the deviation time of using the merge cells sampling instant of trapezoidal algorithm computation our station and offside transformer station; Vertical UNICOM pipeline transmission apparatus receives that offside transformer station comprises the sampled value information of sampled value and sample code; The deviation time according to the sampling instant of both sides transformer station is carried out the interpolation double sampling to the sampled value of offside transformer station; Reach the both sides sampled data and approach the purpose that synchronization is gathered, and accomplish the sample-synchronous function.
8. according to claim 6 or 7 described vertical UNICOM road optical fibre differential protection methods, it is characterized in that: said sampling synchronization pulse signal be optical fiber pulse or IEC1588 network to the time signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101820955A CN101841446B (en) | 2010-05-25 | 2010-05-25 | Pilot channel transmission device, optical fiber differential protective device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101820955A CN101841446B (en) | 2010-05-25 | 2010-05-25 | Pilot channel transmission device, optical fiber differential protective device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101841446A CN101841446A (en) | 2010-09-22 |
| CN101841446B true CN101841446B (en) | 2012-04-25 |
Family
ID=42744584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101820955A Expired - Fee Related CN101841446B (en) | 2010-05-25 | 2010-05-25 | Pilot channel transmission device, optical fiber differential protective device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101841446B (en) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208996B (en) * | 2011-05-18 | 2018-06-26 | 河南省电力公司 | Method is monitored for the network security of digital transformer substation network-enabled intelligent equipment |
| CN102623966B (en) * | 2012-04-01 | 2015-01-07 | 许继电气股份有限公司 | Differential protection method for bus |
| CN103051056B (en) * | 2012-11-29 | 2016-08-17 | 辽宁省电力有限公司朝阳供电公司 | A kind of process layer devices with vertical connection optical-fibre channel transmission-receiving function |
| CN103001199B (en) * | 2012-12-12 | 2014-12-24 | 绍兴电力局 | Ethernet-based current differential protection device and implementation method thereof |
| CN103257291B (en) * | 2013-04-11 | 2015-10-28 | 南京国电南自电网自动化有限公司 | Multipoint synchronous sampling system, the method for sampling and the line differential protection method that confluxes |
| CN103533066A (en) * | 2013-10-21 | 2014-01-22 | 国家电网公司 | Method for receiving, transmitting and synchronizing fiber longitudinal differential data through process level device |
| CN103616598B (en) * | 2013-12-05 | 2017-01-11 | 国家电网公司 | Testing method for dynamic simulation of linkage between protective channel faults and line faults |
| CN104467956A (en) * | 2014-12-26 | 2015-03-25 | 国家电网公司 | Fiber protecting channel testing system |
| CN104901291A (en) * | 2015-05-29 | 2015-09-09 | 国电南瑞科技股份有限公司 | Intelligent fiber differential protection synchronization method based on Beidou time service |
| CN104917141B (en) * | 2015-06-23 | 2017-10-03 | 国家电网公司 | Optical fiber differential protective overlaps brake system |
| CN105186472B (en) * | 2015-10-14 | 2018-09-21 | 南京国电南自电网自动化有限公司 | A kind of circuit longitudinal differential protection method of substation areas of transformer station information taken |
| CN106257785A (en) * | 2016-08-26 | 2016-12-28 | 徐州润泽电气有限公司 | A kind of Coal Mine Power Network distributed network protection method based on GOOSE |
| CN107084757A (en) * | 2017-03-29 | 2017-08-22 | 国家电网公司 | One kind protection passage special detector |
| CN107483291B (en) * | 2017-09-04 | 2020-07-03 | 石家庄科林电气股份有限公司 | Optical fiber longitudinal differential time synchronization method |
| CN108549331A (en) * | 2017-12-08 | 2018-09-18 | 上海交通大学 | A kind of control centre-machine terminal communication system and method |
| CN110505259B (en) * | 2018-05-17 | 2022-07-12 | 许昌许继软件技术有限公司 | Data processing method and device for intelligent substation |
| CN109547693A (en) * | 2018-11-29 | 2019-03-29 | 惠州市德赛西威智能交通技术研究院有限公司 | Multi-sensor data synchronization system and image data synchronous method |
| CN113708349B (en) * | 2020-05-21 | 2024-01-02 | 南京南瑞继保电气有限公司 | Differential protection method and device for power transmission and distribution line |
| 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 |
| CN112865036B (en) * | 2021-01-20 | 2022-08-30 | 南方电网科学研究院有限责任公司 | Data synchronization method and related device for double-end differential protection |
| CN113013852B (en) * | 2021-02-26 | 2022-10-04 | 许继集团有限公司 | Line protection optical fiber channel transmission data processing method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1753264A (en) * | 2005-10-26 | 2006-03-29 | 许继集团有限公司 | Double end testing method in power transmission line longitudinal difference protection |
| CN101163017A (en) * | 2007-08-28 | 2008-04-16 | 东南大学 | Embedded transformer station information integrated server |
-
2010
- 2010-05-25 CN CN2010101820955A patent/CN101841446B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1753264A (en) * | 2005-10-26 | 2006-03-29 | 许继集团有限公司 | Double end testing method in power transmission line longitudinal difference protection |
| CN101163017A (en) * | 2007-08-28 | 2008-04-16 | 东南大学 | Embedded transformer station information integrated server |
Non-Patent Citations (1)
| Title |
|---|
| 陈明.500kV线路纵联保护数字通道的探讨.《继电器》.2005,第33卷(第20期),36-39. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101841446A (en) | 2010-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101841446B (en) | Pilot channel transmission device, optical fiber differential protective device and method | |
| CN201766417U (en) | Integrated device for protecting, detecting and combining units | |
| CN103616591A (en) | Simulation device and method of characters of merging unit of intelligent transformer substation | |
| WO2015070707A1 (en) | Method for acquiring universal data of intelligent substation | |
| CN104202131A (en) | Method for improving transmission real-time of sample data in electric power distribution network system | |
| CN102263593A (en) | FTTH (fiber to the home)-based energy efficiency intelligent management and broadband access system and method | |
| CN101893695B (en) | Analog sampling and protocol generating devices | |
| CN206756967U (en) | A kind of distributed intelligence substation relay protection test device | |
| CN205404700U (en) | Take multi -functional FPGA acquisition unit of time reference output | |
| CN100424965C (en) | The communication method of the distributed PC bus protection without the main station | |
| CN107682084A (en) | A kind of photoelectric communication conversion equipment and photoelectric communication system | |
| CN105553761A (en) | IEC61850 conformance testing hardware platform | |
| CN202076851U (en) | Merging unit with dual-network independent sampling function | |
| CN201788275U (en) | Analog sampling and protocol generating device | |
| CN201974469U (en) | Compatible three-phase electric energy meter | |
| CN205142243U (en) | Handheld network data isolator that intelligent substation used | |
| CN210836548U (en) | Online system of electricity consumption information acquisition equipment in no-signal area | |
| CN207720154U (en) | A kind of intelligent substation test equipment difference optical interface synchronization transmission control device | |
| CN206946259U (en) | Measure and control device based on the switching of double gps satellite positioning system signal source interfaces | |
| CN104852767B (en) | A kind of optical network system and transmission method towards sampled value business in substation | |
| CN112467700A (en) | Current longitudinal differential protection device and method based on GPS synchronization | |
| CN201813166U (en) | General reactive compensation integrated system adopting main controller to control and manage multiple reactive compensation devices | |
| CN110796850A (en) | Online method and system for electricity consumption information acquisition equipment in no-signal area | |
| CN105141035A (en) | Process layer equipment data acquisition and control system | |
| CN104090157B (en) | A kind of digital transformer substation independent measure system architecture method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XUJI ELECTRIC CO., LTD. Free format text: FORMER OWNER: XUJI GROUP CO., LTD. Effective date: 20131129 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131129 Address after: No. 1298 Xuchang City, Henan province 461000 XJ Avenue Patentee after: Xuji Electric Co., Ltd. Patentee after: Xuchang Xuji Software Technology Co., Ltd. Address before: No. 1298 Xuchang City, Henan province 461000 XJ Avenue Patentee before: Xuji Group Co., Ltd. Patentee before: Xuji Electric Co., Ltd. Patentee before: Xuchang Xuji Software Technology Co., Ltd. Effective date of registration: 20131129 Address after: No. 1298 Xuchang City, Henan province 461000 XJ Avenue Patentee after: Xuji Electric Co., Ltd. Patentee after: Xuchang Xuji Software Technology Co., Ltd. Address before: No. 1298 Xuchang City, Henan province 461000 XJ Avenue Patentee before: Xuji Group Co., Ltd. Patentee before: Xuji Electric Co., Ltd. Patentee before: Xuchang Xuji Software Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120425 Termination date: 20190525 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |