CN109462230A - A kind of load transfer decision system and method based on high-speed bus - Google Patents
A kind of load transfer decision system and method based on high-speed bus Download PDFInfo
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- CN109462230A CN109462230A CN201811329139.5A CN201811329139A CN109462230A CN 109462230 A CN109462230 A CN 109462230A CN 201811329139 A CN201811329139 A CN 201811329139A CN 109462230 A CN109462230 A CN 109462230A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
- H02J3/0073—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources for providing alternative feeding paths between load and source when the main path fails, e.g. transformers, busbars
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a kind of load transfer decision system and method based on high-speed bus, system mainly includes optical transceiver module, communication extension module, CPU computing module, route and mother prepared auto restart in the case of being no more than 6 times suitable for 220kV digital transformer substation electric power incoming line number.It is connect by optical transceiver module with external combining unit, intelligent terminal, communication extension module serves as the long distance control device of CPU computing module and optical transceiver module using FPGA, carry out sampled value on give, GOOSE message transmitting-receiving etc. processing, CPU computing module is by realizing functional configuration to communication extension inside modules register and RAM write operation, realize that multiple nodes share bus resource using high-speed bus between communication extension module, the flexibility for improving configuration, is well adapted for the feature more than load transfer system interval.According to pre-set prepared auto restart scheme, fault point can be quickly isolated after the failure occurred, puts into available power supply, reduce scope of power outage and fast recovery of power supply.
Description
Technical field
The invention belongs to Relay Protection Technology in Power System fields, and in particular to a kind of load transfer based on high-speed bus
Decision system and method, in particular to a kind of load transfer decision system applied to 220kV digital transformer substation.
Background technique
With the continuous rapid growth expanded with load of electric system scale, supplied by short circuit current level and partial electric grid
Electric ability restriction, more and more 500kV power grids take the layering and zoning method of operation, by cut-off for section 220kV interconnection,
220kV bus divides the modes regulating measures such as column to inhibit short circuit current level, meet local power demand, leads to partial hierarchical point
The decline of area's point 220kV substation's power supply reliability.To improve power system delamination and subarea point substation power supply reliability, this feelings can be directed to
Condition configuration load turning solution, load turns for switching when carrying out failure automatically.
Domestic load transfer device applies few application in Medial & Low Voltage Power Network, 220KV and the above high-voltage fence mostly.
The particularity of 220KV load transfer is studied, establishes and is correctly suitable for 220KV voltage levels substation load transfer strategy mould
Type is come the problems such as coping with the serious power vacancy being likely to occur, to guaranteeing that power grid security, reliable, economical operation have important reason
Refer to engineering significance.
Summary of the invention
Purpose: in order to overcome the deficiencies in the prior art, the present invention provides a kind of load based on high-speed bus turn
For decision system and method, it can be adapted for the line of more times electric power incoming lines under 220kV digital transformer substation conventional connections mode
Road and mother prepared auto restart have stronger adaptability and scalability.
Technical solution: in order to solve the above technical problems, the technical solution adopted by the present invention are as follows:
A kind of load transfer decision system based on high-speed bus, including optical transceiver module, communication extension module, CPU operation
Module, human-machine interface module, serial ports and ethernet communication module, power module, memory module etc., the load transfer device
Optical transceiver module is for the connection with external smart terminal, combining unit, the communication extension of the load transfer decision system
Module is used to handle the sampling value message of optical transceiver module transmission, GOOSE message, the CPU of the load transfer decision system
Computing module is connect using high-speed bus with multiple communication extension modules, for the judgement and realization of load transfer policing feature,
The human-machine interface module of the load transfer decision system is used to be communicated with backstage, main website.
Load transfer decision system above-mentioned based on high-speed bus, it is characterised in that: the communication extension module FPGA
Logic serves as the long distance control device of CPU computing module and optical transceiver module, and the CPU computing module is by expanding communication
It opens up inside modules register and functional configuration is realized in RAM write operation.
Load transfer decision system above-mentioned based on high-speed bus, it is characterised in that: the high-speed bus includes 1 clock synchronization
Clock bus, 1 pair of control bus, 4 pairs of data/address bus realize each node using the multiple spot low-voltage differential signal of wired-OR logic circuits
Bus resource is shared.
A kind of load transfer decision-making technique based on high-speed bus, which is characterized in that the strategy is as follows:
220kV route is configured in the way of 6 times, 3 groups, for circuit backup power automatic switching preset route group and it is standby throw it is excellent
First grade, group are set as 0~3, and standby priority of throwing is set as 0~6, group or it is standby throw priority be 0 indicate to be not involved in route it is standby
From logic is thrown, the route from same power supply point is set as identical group, when wherein one group as the main group for route when, another group
Or two groups are available route group, same group determines the order that route is put into according to the standby setting value for throwing priority；
By detect the group of 6 times 220kV line switchings, bus connection switch, the operating condition of bus and circuit backup power automatic switching with
It is standby to throw priority setting valve, judge whether system currently meets circuit backup power automatic switching or mother prepared auto restart charge condition；
If circuit backup power automatic switching charging complete, after meeting circuit backup power automatic switching entry condition, activated delay tripping is main for line switching,
Detected in switch trip waiting delay it is main for line switching whether quartile, if so, preferentially selection the lesser available route of group
Group, successively investment is for line switching is thrown from high to low according to standby throwing priority for same group, until busbar voltage recovery, then determine
Circuit backup power automatic switching success determines that circuit backup power automatic switching fails if busbar voltage is not restored yet after all available routes investment；
If meeting mother prepared auto restart charge condition, after meeting mother prepared auto restart entry condition, activated delay tripping is without stream and loses
Pressure it is main for line switching, detect in switch trip waiting delay without stream and whether the main of decompression be in point for line switching
Position, if so, closing bus connection switch and determining the success of mother prepared auto restart or failure.
The utility model has the advantages that the load transfer decision system and method provided by the invention based on high-speed bus, total using high speed
Line realizes the fast exchange of sampling value message, GOOSE message between CPU computing module and communication extension module, improves configuration
Flexibility is well adapted for the feature more than load transfer system interval.System is meeting different types of prepared auto restart charge condition
Under, different prepared auto restart modes is executed, the various flexible methods of operation are applicable to, previous backup auto-activating device is solved and is limited by
The defect of website and the method for operation can play a role for the various possible methods of operation in actual motion, greatly improve
The reliability of power grid power supply.
Detailed description of the invention
Fig. 1 is system schematic of the invention;
Fig. 2 is the design principle schematic diagram of high-speed bus of the invention;
Fig. 3 is the system application schematic diagram of one embodiment of the invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.Following embodiment is only used for clearly saying
Bright technical solution of the present invention, and not intended to limit the protection scope of the present invention.
As shown in Figure 1, the present invention provides a kind of load transfer decision system based on high-speed bus, including optical transceiver
Module, communication extension module, CPU computing module, human-machine interface module, serial ports and ethernet communication module, power module, storage
Module etc..The design principle for the high-speed bus that the system uses is as shown in Fig. 2, communication extension module fpga logic serves as CPU
The long distance control device of computing module and optical transceiver module, CPU computing module is by posting communication extension inside modules
Storage and RAM write operation realize functional configuration, including sampled value on give, GOOSE message transmitting-receiving etc..Engagement positions need to safeguard 1 group
Synchronization signal 1PPS and 1 group of customized clock synchronization signal NZ-T is respectively used to the synchronization of engagement positions sampled value interpolation and RTC clock synchronization.Respectively
Internodal message communication is realized by high-speed bus between communication extension module, high-speed bus includes 1 pair of clock bus, 1 pair of control
Bus processed, 4 pairs of data/address bus share bus resource using the multiple spot low-voltage differential signal of wired-OR logic circuits.Communication is expanded
It opens up text of delivering newspaper in module and is divided into several queues according to priority, can be required message being pressed into different teams according to message real-time performance
Column.For the message polling number of reduction " short message " communication, the bandwidth availability ratio of bus is improved, is supported in same priority message
" short message " is spliced into " long message " in transmit queue to transmit, is responsible for unpacking by receiving side and packet filtering.
Fig. 3 is the application schematic diagram of load transfer decision-making technique of the invention.By 220kV route according to 6 times, 3 groups of side
Formula configuration presets the group and standby throwing priority of route for circuit backup power automatic switching, and group is set as 0~3, standby to throw priority
It is set as 0~6, group or standby priority of throwing are that 0 expression is not involved in circuit backup power automatic switching logic, and the route from same power supply point is set
Be set to identical group, when wherein one group as the main group for route when, another group or two groups be available route group, same group according to
The standby setting value for throwing priority determines the order of route investment.By detecting 6 times 220kV line switchings, bus connection switch, the mothers
The operating condition of line and the group of circuit backup power automatic switching and standby throwing priority setting valve, it is standby certainly to judge whether system currently meets route
Throwing or mother prepared auto restart charge condition.
Specific step is as follows for circuit backup power automatic switching mode:
1) after meeting the charged delay of charge condition, device charging complete；
2) meet entry condition after device start-up study, device starting, outlet tripping is all main for line switching, cuts off simultaneously
Small power supply route on decompression bus；
3) in switch trip waiting delay, when detect it is all it is main be in quartile for line switching when, continue action logic,
Otherwise report tripping failure；
4) detect whether current busbar voltage meets no press strip part, when bus without pressure when then enter the 5) step, otherwise 30S is discontented
Foot then discharges without press strip part；
5) setting the initially standby priority n that throws is 1, and enabling maximum can be that standby throwing route group is other for throwing priority maximum value for throwing number M；
6) check whether 5S has standby throwing condition before activation for the standby throwing switch of current priority n, be then into the 7) step, it is no
Then, into the 9) step；
7) standby throwing line switching is closed；
If 8) detect within the Th time, decompression busbar voltage is restored, and reports prepared auto restart success, otherwise enters the 9) step；
9) n=n+1 is enabled, if n≤M, returns to the 5) step；If n > M, reports prepared auto restart to fail.
Specific step is as follows for mother prepared auto restart mode:
1) meet charge condition after standby throwing charging delay, device charging complete；
2) meet entry condition after device start-up study, device starting exports the main confession of all mountings on tripping decompression bus
Line switching, while cutting off the small power supply route on decompression bus；
3) within the switch trip waiting delay time, when the switch for detecting corresponding power supply line is in quartile, under execution
One step；Otherwise report tripping failure；
4) it detects whether current decompression busbar voltage meets without pressure action value, enters in next step if meeting, otherwise 30S is unsatisfactory for
No press strip part then discharges.
5) bus connection switch is closed, if restoring sentencing the standby voltage for throwing decompression bus in the successfully waiting delay time, is put on record certainly
It throws successfully, otherwise reports prepared auto restart failure.
In conclusion the load transfer decision system proposed by the present invention based on high-speed bus, is realized using high-speed bus
The fast exchange of sampling value message, GOOSE message between CPU computing module and communication extension module, improves the flexibility of configuration,
It is well adapted for the feature more than load transfer system interval.System is executed in the case where meeting different types of prepared auto restart charge condition
Different prepared auto restart modes is applicable to the various flexible methods of operation, solve previous backup auto-activating device be limited by website and
The defect of the method for operation can play a role for the various possible methods of operation in actual motion, substantially increase power grid
The reliability of power supply.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of load transfer decision-making technique characterized by comprising
220kV route is configured in the way of 6 times, 3 groups, for circuit backup power automatic switching preset route group and it is standby throw it is excellent
First grade, group are set as 0~3, and standby priority of throwing is set as 0~6, group or it is standby throw priority be 0 indicate to be not involved in route it is standby
From logic is thrown, the route from same power supply point is set as identical group, when wherein one group as the main group for route when, another group
Or two groups are available route group, same group determines the order that route is put into according to the standby setting value for throwing priority；
By detect the group of 6 times 220kV line switchings, bus connection switch, the operating condition of bus and circuit backup power automatic switching with
It is standby to throw priority setting valve, judge whether system currently meets circuit backup power automatic switching or mother prepared auto restart charge condition；
If circuit backup power automatic switching charging complete, after meeting circuit backup power automatic switching entry condition, activated delay tripping is main for line switching,
Detected in switch trip waiting delay it is main for line switching whether quartile, if so, preferentially selection the lesser available route of group
Group, successively investment is for line switching is thrown from high to low according to standby throwing priority for same group, until busbar voltage recovery, then determine
Circuit backup power automatic switching success determines that circuit backup power automatic switching fails if busbar voltage is not restored yet after all available routes investment；
If meeting mother prepared auto restart charge condition, after meeting mother prepared auto restart entry condition, activated delay tripping is without stream and loses
Pressure it is main for line switching, detect in switch trip waiting delay without stream and whether the main of decompression be in point for line switching
Position, if so, closing bus connection switch and determining the success of mother prepared auto restart or failure.
2. load transfer decision-making technique according to claim 1, which is characterized in that the specific steps of circuit backup power automatic switching mode
It is as follows:
1) after meeting the charged delay of charge condition, device charging complete；
2) meet entry condition after device start-up study, device starting, outlet tripping is all main for line switching, cuts off simultaneously
Small power supply route on decompression bus；
3) in switch trip waiting delay, when detect it is all it is main be in quartile for line switching when, continue action logic,
Otherwise report tripping failure；
4) detect whether current busbar voltage meets no press strip part, when bus without pressure when then enter the 5) step, otherwise 30S is discontented
Foot then discharges without press strip part；
5) setting the initially standby priority n that throws is 1, and enabling maximum can be that standby throwing route group is other for throwing priority maximum value for throwing number M；
6) check whether 5S has standby throwing condition before activation for the standby throwing switch of current priority n, be then into the 7) step, it is no
Then, into the 9) step；
7) standby throwing line switching is closed；
If 8) detect within the Th time, decompression busbar voltage is restored, and reports prepared auto restart success, otherwise enters the 9) step；
9) n=n+1 is enabled, if n≤M, returns to the 5) step；If n > M, reports prepared auto restart to fail.
3. load transfer decision-making technique according to claim 1, which is characterized in that the specific steps of mother prepared auto restart mode
It is as follows:
1) meet charge condition after standby throwing charging delay, device charging complete；
2) meet entry condition after device start-up study, device starting exports the main confession of all mountings on tripping decompression bus
Line switching, while cutting off the small power supply route on decompression bus；
3) within the switch trip waiting delay time, when the switch for detecting corresponding power supply line is in quartile, under execution
One step；Otherwise report tripping failure；
4) it detects whether current decompression busbar voltage meets without pressure action value, enters in next step if meeting, otherwise 30S is unsatisfactory for
No press strip part then discharges；
5) close bus connection switch, if sentencing the standby voltage recovery for throwing decompression bus in the successfully waiting delay time, report prepared auto restart at
Otherwise function reports prepared auto restart failure.
4. a kind of load transfer decision system based on high-speed bus, which is characterized in that including optical transceiver module, communication extension
Module, CPU computing module；
The optical transceiver module, for the connection with external smart terminal, combining unit；
The communication extension module is connect with optical transceiver module signal, for handling the sampled value report of optical transceiver module transmission
Text, GOOSE message, and CPU computing module will be given in sampling value message, GOOSE message；
The CPU computing module is connect using high-speed bus with multiple communication extension modules, for receiving each communication extension mould
The sampling value message that is sent on block, GOOSE message, and carry out the judgement and realization of load transfer decision.
5. the load transfer decision system according to claim 4 based on high-speed bus, it is characterised in that: the communication
Expansion module fpga logic serves as the long distance control device of CPU computing module and optical transceiver module, the CPU computing module
By realizing functional configuration to communication extension inside modules register and RAM write operation.
6. the load transfer decision system according to claim 4 based on high-speed bus, it is characterised in that: each communication extension
Internodal message communication is realized by high-speed bus between module.
7. the load transfer decision system according to claim 4 based on high-speed bus, it is characterised in that: the high speed
Bus includes 1 pair of clock bus, 1 pair of control bus, 4 pairs of data/address bus, using the multiple spot low-voltage differential signal of wired-OR logic circuits,
Realize that each node shares bus resource.
8. the load transfer decision system according to claim 4 based on high-speed bus, it is characterised in that: further include man-machine
Interface module, the human-machine interface module are connect with CPU computing module, for being communicated with backstage, main website.
9. the load transfer decision system according to claim 4 based on high-speed bus, it is characterised in that: further include storage
Module, the memory module are connect with CPU computing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811329139.5A CN109462230A (en) | 2018-11-09 | 2018-11-09 | A kind of load transfer decision system and method based on high-speed bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811329139.5A CN109462230A (en) | 2018-11-09 | 2018-11-09 | A kind of load transfer decision system and method based on high-speed bus |
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| CN109462230A true CN109462230A (en) | 2019-03-12 |
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| CN201811329139.5A Pending CN109462230A (en) | 2018-11-09 | 2018-11-09 | A kind of load transfer decision system and method based on high-speed bus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110912253A (en) * | 2019-11-25 | 2020-03-24 | 广东电网有限责任公司 | Low-voltage intelligent spare power automatic switching system |
| CN114979021A (en) * | 2021-02-27 | 2022-08-30 | 华为技术有限公司 | Data processing method and electronic equipment |
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| CN102055235A (en) * | 2011-01-12 | 2011-05-11 | 广东省电力调度中心 | Spare power automatic switching method for 220kV side circuit and bus of 220kV transformer station |
| CN104167808A (en) * | 2014-08-15 | 2014-11-26 | 广州供电局有限公司 | Automatic 220kV spare power switching method |
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| CN102055235A (en) * | 2011-01-12 | 2011-05-11 | 广东省电力调度中心 | Spare power automatic switching method for 220kV side circuit and bus of 220kV transformer station |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912253A (en) * | 2019-11-25 | 2020-03-24 | 广东电网有限责任公司 | Low-voltage intelligent spare power automatic switching system |
| CN114979021A (en) * | 2021-02-27 | 2022-08-30 | 华为技术有限公司 | Data processing method and electronic equipment |
| WO2022179468A1 (en) * | 2021-02-27 | 2022-09-01 | 华为技术有限公司 | Data processing method and electronic device |
| CN114979021B (en) * | 2021-02-27 | 2024-05-14 | 华为技术有限公司 | Data processing method and electronic equipment |
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Application publication date: 20190312 |