CN109861166A - Fast recovery of power supply method and system after a kind of special line fault - Google Patents
Fast recovery of power supply method and system after a kind of special line fault Download PDFInfo
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- CN109861166A CN109861166A CN201910027347.8A CN201910027347A CN109861166A CN 109861166 A CN109861166 A CN 109861166A CN 201910027347 A CN201910027347 A CN 201910027347A CN 109861166 A CN109861166 A CN 109861166A
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Abstract
The invention discloses fast recovery of power supply method and system after a kind of special line fault, method includes: to be located at power transformation station location at the both ends of special route and conventional line a line protective devices are respectively set；Line protective devices include CPU card, and the CPU card is transferred to conventional line from special route for that will close a floodgate order；The present invention is passed to the combined floodgate order detected on distinct line road on conventional line by the way that line protective devices are arranged on special route and conventional line; and then control the closing relay realization that closes a switch and restore electricity, the method for the present invention speed is fast and avoids manual closing operation bring low efficiency and inconvenient problem；It can satisfy fast quick-recovery after the special line fault of different application the present invention provides three sections of CPU cards to supply, keep the operation of fast recovery of power supply after special line fault more effectively reliable.
Description
Technical field
The present invention relates to fast recovery of power supply method and systems after a kind of special line fault of solution, belong to electric system certainly
Dynamicization control and technical field of relay protection.
Background technique
With the increase that people require electrical energy demands and power quality, limit of the part concentrated load due to corridor of transmitting electricity
System, using special power transmission mode, such as: submarine cable transmission of electricity, superconductive power transmission.When selecting the transmission of electricity of distinct line road, typically
Consider that special application such as transmission line capability is big, passway for transmitting electricity limitation etc..110kV or less voltage class is considered from construction cost
Cable run will not generally use duplicate system retrofit, and which results in the declines of receiving end power supply reliability, especially work as distinct line
When road is broken down, positioning failure is difficult in the short time, and carry out fault restoration.If the charge circuit is important, need
Other overhead transmission lines or the other extension wires of construction are borrowed as cold standby route, are in case of emergency come into operation.Therefore
In view of the safety and economy of transmission of electricity, when permanent fault occurs for special power transmission mode, recovery time is long, can generally adopt
Based on special power transmission mode, mode of traditional power transmission mode as cold standby.But under this mode, when special transmission line of electricity
It is all the power supply for guaranteeing load side by the way of manual closing operation cold standby route when overhauling or breaking down, to actually making
With bringing big inconvenience and to repair difficult recovery time slow.
Summary of the invention
Present invention seek to address that after permanent fault occurs for special route, can not fast recovery of power supply the problem of, propose one
Kind solves fast recovery of power supply method and system after special line fault.
To realize the above-mentioned technical purpose, the present invention adopts the following technical scheme:
The present invention provides a kind of fast recovery of power supply method after special line fault, comprising the following steps:
It is located at power transformation station location at the both ends of special route and conventional line and a line protective devices is respectively set；It is described
Line protective devices include CPU card, and the CPU card is passed for that will close a floodgate order from the line protective devices of distinct line road
The defeated line protective devices on conventional line；
The line protective devices 1-1 of special route one end disconnects the route of corresponding substation after special line failure
Switch and be transmitted to combined floodgate order by line protective devices 1-1 the line protective devices 2-1 of the same end of conventional line；
The conventional line at the end is closed after line protective devices 2-1 confirmation combined floodgate order by the closing relay of operation panel
Switch；
It sends to close a floodgate to order to arrive by the protective device 1-2 of the other end of preset tripping delay time special route and correspond to
Pass through the combined floodgate of operation panel after line protective devices 2-2 on the conventional line at end, line protective devices 2-2 confirmation combined floodgate order
The conventional line switch that relay closes corresponding end completes fast recovery of power supply after special line fault.
In above technical scheme, the CPU card is by having the transmission of the MMS communication interface of station level GOOSE function
GOOSE, which closes a floodgate, to be ordered.
In above technical scheme, the CPU card is by having the process layer GOOSE of process layer GOOSE function communication
Interface transmits GOOSE combined floodgate order.
In above technical scheme, the CPU card is closed a floodgate by the transmission of longitudinal differential fiber channel interface and is ordered.
Preferably, when the distance between the substation at route both ends is no more than 1km, order of closing a floodgate is transmitted using GOOSE.
Preferably, it when the distance between the substation at route both ends is more than 2km, is transmitted using longitudinal differential optical-fibre channel
It closes a floodgate and orders.
Further, the CPU card includes three MMS communication interfaces and one group of longitudinal differential fiber channel interface,
In two MMS communication interfaces have transmission station level GOOSE function, longitudinal differential fiber channel interface complete transmission line both ends
Vertical difference communication function.
Further, the CPU card includes three MMS communication interfaces, one group of OTM interface and one group of independent process
Layer GOOSE communication interface；Wherein, MMS communication interface completes station level communication function, and it is vertical that OTM interface completes transmission line both ends
Poor communication function, process layer GOOSE communication interface complete route the same side GOOSE combined floodgate order transmission.
Further, the CPU card includes three MMS communication interfaces, two groups of OTM interfaces；Wherein, MMS communication interface
Station level communication function is completed, one group of OTM interface completes the vertical poor communication function in both ends, and it is same that another group of OTM interface completes route
Side, which is closed a floodgate, orders transmission.
On the other hand, the present invention provides fast recovery of power supply systems after a kind of special line fault, comprising:
It is located at the line protective devices 1-1 and line protective devices 1-2 of the setting of power transformation station location at the both ends of special route
And it is located at the line protective devices 2-1 and line protective devices 2-2 of the setting of power transformation station location at the both ends of conventional line；
The line protective devices 1-1, line protective devices 1-2, line protective devices 2-1 and line protective devices 2-
1 all includes CPU card, and the CPU card, which is used to close a floodgate to order from the line protective devices of special route, is transferred to conventional line
The line protective devices on road；
The line protective devices 1-1 after special line failure for disconnecting the line switching of corresponding substation simultaneously
Order of closing a floodgate is transmitted to the line protective devices 2-1 of the same end of conventional line；
The line protective devices 2-1 by the closing relay of operation panel closes the end after combined floodgate is ordered for confirm
Conventional line switch；
The line protective devices 1-2 of the other end of special route is used to send life of closing a floodgate by preset tripping delay time
Enable the line protective devices 2-2 on the conventional line of corresponding end；
The line protective devices 2-2 by the closing relay of operation panel closes corresponding end after combined floodgate is ordered for confirm
Conventional line switch complete fast recovery of power supply after special line fault.
Present invention advantageous effects achieved:
1, the present invention on special route and conventional line by being respectively set line protective devices and will be on distinct line road
The combined floodgate detected is ordered from the line protective devices that the line protective devices in special line side pass to conventional line, and then is controlled
The closing relay processed realization that closes a switch restores electricity, and fast response time and avoids manual closing operation bring low efficiency and behaviour
Make inconvenient problem；
2, the technology based on GOOSE signal transmitting switch amount is widely applied in the power system, but special
It is not referred to temporarily in multi-line power transmission system with the application of the technology automatic closing conventional line, the invention proposes will using GOOSE
Switching signal is transmitted to conventional line from special route to control and close a floodgate, and the closing operation after making special line failure is more square
Just quick；
3, the invention proposes GOOSE transmitting combined floodgate order can be used or OTM transmitting is selected to close a floodgate to order, pass through transmission
Route both ends substation is more closely using GOOSE transmission " switching signal "；If passed apart from distant (more than 1kM) using GOOSE
Defeated " switching signal " is restricted, and using vertical channel transfer " switching signal " mode, which transmission range reaches 60kM, and
And it can guarantee the reliability of transmission information.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the method for the present invention specific embodiment setting line protective devices；
Fig. 2 is the structural schematic diagram of another embodiment setting line protective devices of the method for the present invention；
Fig. 3 is the method for the present invention specific embodiment CPU card,
Wherein Fig. 3-1 is the method for the present invention specific embodiment CPU card 1,
Fig. 3-2 is the method for the present invention specific embodiment CPU card 2,
Fig. 3-3 is the method for the present invention specific embodiment CPU card 3.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
Fig. 1 is the structural schematic diagram of the method for the present invention specific embodiment setting line protective devices；As shown in Figure 1, in spy
The both ends of different route and conventional line are located at power transformation station location and a line protective devices are respectively set；
The line protective devices include CPU card, and the CPU card is used for the line ordered from distinct line road that will close a floodgate
Line protection device is transferred to the line protective devices on conventional line.
The line protective devices 1-1 of special route one end disconnects the route of corresponding substation after special line failure
Switch and be transmitted to combined floodgate order by line protective devices 1-1 the line protective devices 2-1 of the same end of conventional line；
The conventional line at the end is closed after line protective devices 2-1 confirmation combined floodgate order by the closing relay of operation panel
Switch；
It sends to close a floodgate to order to arrive by the protective device 1-2 of the other end of preset tripping delay time special route and correspond to
Pass through the combined floodgate of operation panel after line protective devices 2-2 on the conventional line at end, line protective devices 2-2 confirmation combined floodgate order
The conventional line switch that relay closes corresponding end completes fast recovery of power supply after special line fault.
Specifically, when in Fig. 1 protective relaying device (route protection 1-1, route protection 1-2) pass through externally input simulation
When amount (AC plug-in unit inputs information), switching value (BIO plug-in unit inputs information) judge that distinct line road is broken down, CPU card
Tripping relay through delay and running operation panel (SWI) goes to disconnect line switching (the route protection 1-1 tripping change of corresponding substation
Special line switching in power station 1, special line switching in route protection 1-2 tripping substation 2), route protection 1-1 is sent out simultaneously
" GOOSE close a floodgate order " is to route protection 2-1 (for the reliability for guaranteeing GOOSE information, using the point-to-point transmission side GOOSE
Formula), after route protection 2-1 confirms GOOSE combined floodgate order, 1 side of substation is closed by the closing relay of operation panel (SWI)
Conventional line switch, route protection 2-2 complete special line fault with the conventional line switch that same logic closes 2 side of substation
Fast recovery of power supply afterwards.It should be noted that special route be used for judge route generate failure external input amount such as analog quantity,
Switching value both is from the output in the prior art, and this will not be repeated here.The operation panel is used to control the line switching of substation
It is also the prior art, not described in detail herein.
Fig. 2 is the structural schematic diagram of another embodiment setting line protective devices of the method for the present invention；Such as Fig. 1-2, if become
The distance of power station 1 and substation 2 is distant (more than 1kM), is restricted using GOOSE transmission " switching signal ", the present embodiment
Using vertical channel transfer " switching signal " mode, which transmission range reaches 60kM, and can guarantee transmission information can
By property, detailed combined floodgate logic is as follows:
By taking line protective devices 2-1 as an example, after satisfaction " external combined floodgate charge condition ", route protection 1-1 jump is received
Start combined floodgate logic when lock signal, through short 1 breaker order of delay TU1 (delay can adjust) Fa He substation of closing a floodgate, closes and become
1 breaker order of power station is cancelled through 100 millisecond time-delay.It is not closed if 1 breaker of substation closes in breaker order 1S in hair,
Send out " breaker is refused to close " and " baulk " alarm；It, (can be whole through a tripping delay TU3 after confirmation 1 breaker of substation closes
It is fixed) order for jumping 2 breaker of power station is sent out, jump 2 breaker order of power station is cancelled through 100 millisecond time-delay.If hair jump power station 2
Breaker order non-tripping circuit breaker in 1S then sends out " breaker is refused to jump " and " baulk " alarm；If confirming, substation 2 is disconnected
" acting successfully " message is then sent out in road device tripping.
In the present embodiment when special route generating region internal fault, two sides protective device guarantees two by longitudinal differential protection
Side protective separation failure after faulty line is isolated, gives this side cold standby route protection hair " order of closing a floodgate " respectively, utilizes cold standby
Restore load side power supply with route.
Based on the demand of Fig. 1 and Fig. 2 different application, following embodiment includes three sections of CPU cards:
Embodiment one: being shown in Fig. 3-1, configures three MMS communication interfaces, one group of OTM (OTM) interface；Two of them MMS communication
Interface has transmission station level GOOSE function, and OTM interface completes the vertical poor communication function in both ends.The program is to hardware resource requirements
It is less, but station level GOOSE signal transmission real-time is poor, and performance can satisfy (Fig. 1) system requirements substantially；
4 line protective devices (see Fig. 1) being arranged in the method for the present invention in a particular embodiment select the present embodiment
CPU card in (see Fig. 3-1), route protection 1-1 send " GOOSE, which closes a floodgate, to be ordered " to line by ETH2, ETH3 mouth of the plug-in unit
ETH2, ETH3 mouth of 1-2 is protected on road, and route protection 1-2 receives the operation plug-in unit that " GOOSE, which closes a floodgate, to be ordered " passes through device oneself afterwards
Export switching signal；
It should be noted that supporting MMS communication and GOOSE to communicate mouth function altogether on software when the method for the present invention is implemented.
Embodiment two (see Fig. 3-2) configures three MMS communication interfaces, one group of OTM interface and one group of independent process layer
GOOSE communication interface；Wherein, MMS communication interface completes station level communication function, and OTM interface completes the vertical poor communication function in both ends,
Process layer GOOSE communication interface completes route the same side GOOSE " order of closing a floodgate " transmission.Process layer GOOSE communication interface is opposite
In station level GOOSE communication interface.Process layer is the state parameter for completing the real-time electrical quantity detection of operation power, running equipment
It is exactly analog quantity and switching value acquisition, the execution of control command often said that detection, operation control, which are executed with driving,.Only digitize
Substation i.e. intelligent substation just have process layer, and conventional substation only has wall and station level, without process layer.Process
Layer equipment includes primary equipment such as generator, transformer, bus, breaker, disconnecting switch, current/voltage mutual inductor, merging
Unit, intelligent terminal.Combiner is connected with the output of mutual inductor and completes to transmit with some data across interval combiner.Intelligence
Terminal can complete certain control action.
Program GOOSE signal real-time is high, and disadvantage is that the transmission range of the direct-connected signal of GOOSE is limited；The embodiment
Middle CPU card 2 is modified, increases GOOSE on 1 hardware foundation of CPU card and receives and dispatches optical port, while supporting process layer on software
GOOSE transmission-receiving function.
4 line protective devices (see Fig. 1) being arranged in the method for the present invention in another embodiment select this implementation
In example (see Fig. 3-2) when typical CPU card 2, route protection 1-1 sends " GOOSE combined floodgate life by TX mouthfuls of GOOSE of the plug-in unit
Enable " to RX mouthfuls of GOOSE of route protection 1-2, route protection 1-2 receives the behaviour that " GOOSE, which closes a floodgate, to be ordered " passes through device oneself afterwards
Make plug-in unit output switching signal.
Embodiment three (see Fig. 3-3) configures three MMS communication interfaces, two groups of OTM interfaces.Wherein, MMS communication interface is complete
At station level communication function, one group of OTM interface completes the vertical poor communication function in both ends, and another group of OTM interface completes route the same side
" order of closing a floodgate " transmission, the program are suitble to protective device distance in two lines road the same side to be more than the application of 1kM.The embodiment
Middle CPU card 3 be it is enhanced, increasing OTM on 1 hardware foundation of CPU card, (Optical Touch Module, i.e., vertical connection are poor
Dynamic optical-fibre channel) transmitting-receiving optical port.
MMS (Microsoft Media Server Protocol), i.e. Microsoft Media Server agreement, for accessing simultaneously
A kind of agreement of .asf file in streamed reception Windows Media server.Mobile agent server protocol is for accessing Windows Media
Unicast content on publishing point.
In a particular embodiment, 4 line protective devices structures being arranged in the method for the present invention are by taking Fig. 2 as an example, 4 routes
Protective device selects typical CPU card 3 (see Fig. 3-3), route protection 1-1 in the present embodiment to pass through the OTM TX2 of the plug-in unit
Mouth sends " GOOSE, which closes a floodgate, to be ordered " to RX2 mouthfuls of OTM of route protection 1-2, and route protection 1-2 receives " order of GOOSE combined floodgate "
Switching signal is exported by the operation plug-in unit of device oneself afterwards.
Three sections of CPU cards in above embodiments, can satisfy fast quick-recovery after the special line fault of different application
Power supply.
Another embodiment provides fast recovery of power supply systems after a kind of special line fault (see Fig. 1 or figure
2), comprising:
It is located at the line protective devices 1-1 and line protective devices 1-2 of the setting of power transformation station location at the both ends of special route
And it is located at the line protective devices 2-1 and line protective devices 2-2 of the setting of power transformation station location at the both ends of conventional line；
The line protective devices 1-1, line protective devices 1-2, line protective devices 2-1 and line protective devices 2-
1 all includes CPU card, and the CPU card, which is used to close a floodgate to order from the line protective devices of special route, is transferred to conventional line
The line protective devices on road；
The line protective devices 1-1 after special line failure for disconnecting the line switching of corresponding substation simultaneously
Order of closing a floodgate is transmitted to the line protective devices 2-1 of the same end of conventional line；
The line protective devices 2-1 by the closing relay of operation panel closes the end after combined floodgate is ordered for confirm
Conventional line switch；
The line protective devices 1-2 of the other end of special route is used to send life of closing a floodgate by preset tripping delay time
Enable the line protective devices 2-2 on the conventional line of corresponding end；
The line protective devices 2-2 by the closing relay of operation panel closes corresponding end after combined floodgate is ordered for confirm
Conventional line switch complete fast recovery of power supply after special line fault.
On the basis of above embodiments, the structure of CPU card is optional three kinds following in the specific implementation；
1, CPU card includes three MMS communication interfaces and one group of longitudinal differential fiber channel interface (see Fig. 3-1), wherein
Two MMS communication interfaces have transmission station level GOOSE function, and it is vertical that longitudinal differential fiber channel interface completes transmission line both ends
Poor communication function.Fig. 3-1 is the method for the present invention specific embodiment CPU card 1,
2, CPU card includes three MMS communication interfaces (see Fig. 3-2), one group of OTM interface and one group of independent process layer
GOOSE communication interface；Wherein, MMS communication interface completes station level communication function, and it is vertical poor that OTM interface completes transmission line both ends
Communication function, process layer GOOSE communication interface complete route the same side GOOSE combined floodgate order transmission.
3, CPU card includes three MMS communication interfaces (see Fig. 3-3), two groups of OTM interfaces；Wherein, MMS communication interface is complete
At station level communication function, one group of OTM interface completes the vertical poor communication function in both ends, and another group of OTM interface completes route the same side
Order of closing a floodgate is transmitted.
This three sections of CPU cards, can satisfy fast recovery of power supply after the special line fault of different application.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (13)
1. a kind of fast recovery of power supply method after special line fault, which comprises the following steps:
It is located at power transformation station location at the both ends of special route and conventional line and a line protective devices is respectively set；The route
Protective device includes CPU card, and the CPU card is used to close a floodgate to order from the line protective devices of special route and be transferred to often
The line protective devices on gage line road；
The line protective devices 1-1 of special route one end disconnects the line switching of corresponding substation after special line failure
And combined floodgate order is transmitted to the line protective devices 2-1 of the same end of conventional line by line protective devices 1-1；
It is opened after line protective devices 2-1 confirmation combined floodgate order by the conventional line that the closing relay of operation panel closes the end
It closes；
Order of closing a floodgate, which is sent, by the protective device 1-2 of the other end of preset tripping delay time special route arrives corresponding end
Pass through the combined floodgate relay of operation panel after line protective devices 2-2 on conventional line, line protective devices 2-2 confirmation combined floodgate order
The conventional line switch that device closes corresponding end completes fast recovery of power supply after special line fault.
2. fast recovery of power supply method according to claim 1, which is characterized in that the CPU card is by having station control
The MMS communication interface transmission GOOSE of layer GOOSE function, which closes a floodgate, to be ordered.
3. fast recovery of power supply method according to claim 1, which is characterized in that the CPU card is by having station control
The process layer GOOSE communication interface transmission GOOSE of layer GOOSE function, which closes a floodgate, to be ordered.
4. fast recovery of power supply method according to claim 1, which is characterized in that when between the substation at route both ends
When distance is no more than 1km, order of closing a floodgate is transmitted using GOOSE.
5. fast recovery of power supply method according to claim 1, which is characterized in that when between the substation at route both ends
When distance is more than 1km, order of closing a floodgate is transmitted using longitudinal differential optical-fibre channel.
6. fast recovery of power supply method according to claim 1, which is characterized in that the tripping delay time can adjust.
7. fast recovery of power supply method according to claim 1, which is characterized in that the CPU card includes three MMS logical
Believe that interface and one group of longitudinal differential fiber channel interface, two of them MMS communication interface have transmission station level GOOSE function,
Longitudinal differential fiber channel interface completes the vertical poor communication function in transmission line both ends.
8. fast recovery of power supply method according to claim 1, which is characterized in that the CPU card includes three MMS logical
Believe interface, one group of OTM interface and one group of independent process layer GOOSE communication interface；Wherein, MMS communication interface completes station control
Layer communication function, OTM interface complete the vertical poor communication function in transmission line both ends, and it is same that process layer GOOSE communication interface completes route
Side GOOSE, which closes a floodgate, orders transmission.
9. fast recovery of power supply method according to claim 1, which is characterized in that the CPU card includes three MMS logical
Believe interface, two groups of OTM interfaces；Wherein, MMS communication interface completes station level communication function, and it is vertical poor that one group of OTM interface completes both ends
Communication function, another group of OTM interface complete the combined floodgate order transmission of route the same side.
10. fast recovery of power supply system after a kind of special line fault, characterized in that include:
The both ends of special route be located at power transformation station location setting line protective devices 1-1 and line protective devices 1-2 and
It is located at the line protective devices 2-1 and line protective devices 2-2 of the setting of power transformation station location at the both ends of conventional line；
The line protective devices 1-1, line protective devices 1-2, line protective devices 2-1 and line protective devices 2-1 are
Including CPU card, the CPU card, which is used to close a floodgate to order from the line protective devices of special route, is transferred to conventional line
Line protective devices；
The line protective devices 1-1 after special line failure for disconnecting the line switching of corresponding substation and will close
Lock order is transmitted to the line protective devices 2-1 of the same end of conventional line；
The line protective devices 2-1 be used to confirm close a floodgate order after the routine at the end is closed by the closing relay of operation panel
Line switching；
The line protective devices 1-2 of the other end of special route is used to send order of closing a floodgate by preset tripping delay time and arrive
Line protective devices 2-2 on the conventional line of corresponding end；
The line protective devices 2-2 by the closing relay of operation panel closes the normal of corresponding end after combined floodgate is ordered for confirm
Gage line way switch completes fast recovery of power supply after special line fault.
11. fast recovery of power supply system after special line fault according to claim 10, characterized in that
The CPU card includes three MMS communication interfaces and one group of longitudinal differential fiber channel interface, two of them MMS communication
Interface has transmission station level GOOSE function, and longitudinal differential fiber channel interface completes the vertical poor communication function in transmission line both ends.
12. fast recovery of power supply system after special line fault according to claim 10, which is characterized in that the CPU
Plug-in unit includes three MMS communication interfaces, one group of OTM interface and one group of independent process layer GOOSE communication interface；Wherein, MMS
Communication interface completes station level communication function, and OTM interface completes the vertical poor communication function in transmission line both ends, and process layer GOOSE is logical
Communication interface completes route the same side GOOSE combined floodgate order transmission.
13. fast recovery of power supply system after special line fault according to claim 10, which is characterized in that the CPU
Plug-in unit includes three MMS communication interfaces, two groups of OTM interfaces；Wherein, MMS communication interface completion station level communication function, one group
OTM interface completes the vertical poor communication function in both ends, and another group of OTM interface completes the combined floodgate order transmission of route the same side.
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| CN110994786A (en) * | 2019-11-12 | 2020-04-10 | 广东电网有限责任公司 | Single intelligent distributed power distribution terminal control method based on peer-to-peer communication |
| CN112103952A (en) * | 2020-09-08 | 2020-12-18 | 南京首风智慧电力研究院有限公司 | Control protection system for transformer substation and use method thereof |
| CN114006470A (en) * | 2021-10-25 | 2022-02-01 | 北京东土科技股份有限公司 | Power server, transformer substation centralized protection measurement and control method, device and medium |
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