CN110460049A - Integrated multilayer grade turns the load transfer method for strategy - Google Patents
Integrated multilayer grade turns the load transfer method for strategy Download PDFInfo
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- CN110460049A CN110460049A CN201910796373.7A CN201910796373A CN110460049A CN 110460049 A CN110460049 A CN 110460049A CN 201910796373 A CN201910796373 A CN 201910796373A CN 110460049 A CN110460049 A CN 110460049A
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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
- H02J3/04—Circuit arrangements for ac mains or ac distribution networks for connecting networks of the same frequency but supplied from different sources
- H02J3/06—Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
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Abstract
The present invention provides a kind of integrated multilayer grade and turns load transfer method for strategy, turns to include that basis turns to supply for strategy, stand in bus statements based on collusion, bus generation supplies, splits and turn generation, secondary turn of generation；The following steps are included: step S1, considers the linkage of power distribution network multi-layer rack, establishes from main transformer-bus-feeder line integration power supply relational model；Step S2, input data parameter, including the method for operation, load data, operation constraint, policy priority grade；Step S3 is inputted wait turn to carry out all types of turns for target device for strategy and load Analysis, obtain and turn to analyze for path and load condition；Step S4, turning solution output: comprehensive a variety of turns, for strategy, provide optimal load transfer scheme；The load transfer scheme of generation is generated operation order according to the requirement of operation order automatically by step S5.The present invention sufficiently excavates distribution network structure linkage ability and bulk supply ability it can be considered that the linkage of multi-layer rack.
Description
Technical field
The present invention relates to a kind of electric power project engineering field, especially a kind of integrated multilayer grade turns the load transfer for strategy
Method.
Background technique
By the distribution network structure structure optimization of many years and Distribution Automation Construction, distribution network automated level, which has, substantially to be mentioned
Height, but there are also to be hoisted for intelligent level.In terms of the power distribution network method of operation, country's power distribution automation main station function fails at present
Sufficiently agree with practical regulation operation needs, especially when the power supply substation of power distribution network (or main transformer in standing, bus) has a power failure
Power distribution network block load transfer use, be not able to achieve multi-layer rack linkage multistage turn for strategy, fail sufficiently to excavate
Grid structure ability and power supply capacity, the multi-layer linkage not being able to achieve between route-power transformation rack.
In addition, target device includes that plant stand, main transformer, bus, switch, feeder line, branch line etc. are a variety of in actual application
Situation, the grid structure that different target devices is related to is different, so what is be applicable in turns also to be not quite similar for strategy, therefore needle
Alanysis is pressed to different types of target device, restores customer power supply to greatest extent to reach, is necessary.
Summary of the invention
It is an object of the present invention to overcome the shortcomings of the prior art and provide a kind of integrated multilayer grades to turn for strategy
Load transfer method considers the linkage of multi-layer rack for different target devices to be specialized in, and integrated application is different to be turned for plan
Slightly, optimal turning solution is provided.The technical solution adopted by the present invention is that:
A kind of integrated multilayer grade turns the load transfer method for strategy, turns to include that basis turns to supply for strategy, stand in bus statements based on collusion, mother
In line generation, supplies, and fractionation turns generation, secondary turn of generation；The following steps are included:
Step S1 considers the linkage of power distribution network multi-layer rack, establishes from main transformer-bus-feeder line integration power supply relationship mould
Type；
Step S2, input data parameter, including the method for operation, load data, operation constraint, policy priority grade；
Step S3 is inputted wait turn to carry out all types of turns for target device for strategy and load Analysis, obtain and turn for path and load
Situation analysis；
Step S4, turning solution output: comprehensive a variety of turns, for strategy, provide optimal load transfer scheme；
The load transfer scheme of generation is generated operation order according to the requirement of operation order automatically by step S5.
Further, in step S3, on the basis of analysis turns for path, it will turn to be divided into three classes for load: turn without effective
It is represented for path I, turns to represent for off-capacity II, effectively turn to represent for path III.
Further, in step S4, after obtaining I, II, Group III load, according to different targets, using different
Turn for strategy:
Substation's full cut-off first passes through topology search and obtains tri- type load of I, II, III, if there is I type load, is turned with bus for strategy,
Then preferential band supplies in the following order, and band is cut off for the I type load that bus capacity can not support, and II type load selects secondary turn
Generation, Group III load are turned by basis for producing；
Main transformer has a power failure, and first judges that can normal main transformer band be used only for if if energy band completely and stand for the load of power failure main transformer completely
Otherwise interior bus statements based on collusion strategy first passes through topology search and obtains tri- type load of I, II, III, normal main transformer can not with confession by with
Lower sequence carries out transfer until meeting interior bus statements based on collusion strategy of standing: first stage Group III load turns to produce for strategy by basis,
Second stage II type load is produced by secondary turn for strategy, the excision of phase III I type load；
Bus full cut-off first passes through topology search and obtains tri- type load of I, II, III, and the excision of I type load, II type load considers secondary
Turn generation strategy, Group III load turns to produce for strategy by basis；
Have a power failure on distribution network feeder and feeder line, first passes through topology search and obtain tri- type load of I, II, III, the excision of I type load, II
Type load considers that secondary turn of generation strategy, Group III load turn to produce for strategy by basis.
The beneficial effects of the present invention are: (1) can quickly and effectively analyze turn for path and it is applicable turn for strategy, it is maximum
The recovery customer power supply of limit, while only needing the operation taken minimum.(2) it can be considered that multi-layer rack links, sufficiently excavates
Distribution network structure linkage ability and bulk supply ability.
Detailed description of the invention
Fig. 1 is flow chart of the method for the present invention.
Fig. 2 is load transfer specific flow chart of the invention.
Specific embodiment
Below with reference to specific drawings and examples, the invention will be further described.
The present invention proposes that a kind of integrated multilayer grade turns the load transfer method for strategy, is considering multi-layer rack basis
On, main turn turns to supply for tactful including basis, and interior bus of standing is acted in collusion to make each other's confessions, and bus generation supplies, and fractionation turns generation, secondary turn of generation；
Basis turns to supply: obtaining wait turn to obtain by topology search wait turn all for load for target device lower for target device
It is reasonable to turn for path, and optimal turn for path is obtained by screening；Turn for path to may include one or more band for route；
Bus statements based on collusion in standing: the case where being suitable for separate unit main transformer power loss in substation (maintenance or failure etc.) preferentially passes through closure
More as far as possible being transferred in station of load under power loss main transformer is operated normally main transformer by mother, block switch in standing；
Bus generation supplies: the case where being suitable for substation's power failure, bus power loss, basis turns after supplying, if still there is load that can not produce, this
When, if some bands have biggish allowance for route, the wherein maximum route of allowance is selected, corresponding interconnection switch is closed, to mistake
Electric bussed supply can not turn the method that the load for Gong going out is powered to other by bus；
Fractionation turns generation: suitable for wait turn to have for target line a plurality of turn for path, every band is both less than for the allowance of route wait turn
For whole loads of target line, but it can treat and turn to carry out stepping for target line, it will be wait turn to be split as target line load
Multiple portions go to different bands on route respectively；
Secondary turn of generation: turn to turn for the band on path for path, this for line suitable for only having one for target line (A line) to turn
Road (B line) allowance is inadequate but has the case where other turns are for path (C line), i.e., wait turn only go to route B, route B for route A
Route C can be gone to again, the allowance of route B is less than the load of route A, a part of load of route B first can be transferred to route C, this
When route B can bear the load of route A completely, this is secondary turn of generation；
A kind of integrated multilayer grade turns the load transfer method for strategy, specifically includes the following steps:
Step S1 considers the linkage of power distribution network multi-layer rack, establishes from main transformer-bus-feeder line integration power supply relationship mould
Type；
Step S2, input data parameter, including the method for operation, load data, operation constraint, policy priority grade；
The method of operation includes real-time mode and research mode；Actual load transfer operation, research mode are carried out under real-time mode
The lower simulated operation for carrying out load transfer；
Load data includes real-time load, section load, (day, week, month, year) highest is negative in historical high load and set period
Lotus；
Operation constraint includes having a power failure to turn to turn to supply for unlinking with conjunction；
Step S3 is inputted wait turn to carry out all types of turns for target device for strategy and load Analysis, obtain and turn for path and load
Situation analysis；
In this step, by topological connection relation searching strip for path；While searching all bands for path, obtain all
Wait turn load and rated capacity for target device, band the level power supply main transformer for route and thereon；
Band can be calculated for allowance according to load and rated capacity；Cable address board is protected, overhauls to be listed and in addition, comprehensively considering and whether having
Judge band for the validity of route；
It on the basis of analysis turns for path, will turn to be divided into three classes for load: without effectively turning to represent for path I, turn for capacity
Deficiency is represented with II, effectively turns to represent for path III；
Step S4, turning solution output: comprehensive a variety of turns, for strategy, provide optimal load transfer scheme；
After obtaining I, II, Group III load, according to different targets, turned using different for strategy:
Substation's full cut-off first passes through topology search and obtains tri- type load of I, II, III, if there is I type load, is turned with bus for strategy
(insufficient with the bus possible capacity supplied), then preferential band supplies in the following order, the I type load that band can not be supported for bus capacity
Excision, II type load select secondary turn of generation, and Group III load is turned by basis for producing；
Main transformer has a power failure, and first judges that can normal main transformer band be used only for if if energy band completely and stand for the load of power failure main transformer completely
Otherwise interior bus statements based on collusion strategy first passes through topology search and obtains tri- type load of I, II, III, normal main transformer can not with confession by with
Lower sequence carries out transfer until meeting interior bus statements based on collusion strategy of standing: first stage Group III load turns to produce for strategy by basis,
Second stage II type load is produced by secondary turn for strategy, the excision of phase III I type load；
Bus full cut-off first passes through topology search and obtains tri- type load of I, II, III, and the excision of I type load, II type load considers secondary
Turn generation strategy, Group III load turns to produce for strategy by basis；
Have a power failure on distribution network feeder and feeder line, with the processing method of bus full cut-off, first passes through topology search and obtain I, II, III tri-
Type load, the excision of I type load, II type load consider that secondary turn of generation strategy, Group III load turn to produce for strategy by basis；
Consider step S3 in, output parameter operation constraint, by the operation order in turning solution about switch be divided into conjunction unlink turn
For and have a power failure and turn to supply, conjunction unlink turn for when switch first closes and divide afterwards, have a power failure turn for when switch first to divide and close afterwards；
The load transfer scheme of generation is generated operation order according to the requirement of operation order automatically by step S5.
It should be noted last that the above specific embodiment is only used to illustrate the technical scheme of the present invention and not to limit it,
Although being described the invention in detail referring to example, those skilled in the art should understand that, it can be to the present invention
Technical solution be modified or replaced equivalently, without departing from the spirit and scope of the technical solution of the present invention, should all cover
In the scope of the claims of the present invention.
Claims (3)
1. a kind of integrated multilayer grade turns the load transfer method for strategy, which is characterized in that turn to include that basis turns to supply for strategy, stand
In interior bus statements based on collusion, bus generation, supply, and fractionation turns generation, secondary turn of generation；The following steps are included:
Step S1 considers the linkage of power distribution network multi-layer rack, establishes from main transformer-bus-feeder line integration power supply relationship mould
Type；
Step S2, input data parameter, including the method for operation, load data, operation constraint, policy priority grade；
Step S3 is inputted wait turn to carry out all types of turns for target device for strategy and load Analysis, obtain and turn for path and load
Situation analysis；
Step S4, turning solution output: comprehensive a variety of turns, for strategy, provide optimal load transfer scheme；
The load transfer scheme of generation is generated operation order according to the requirement of operation order automatically by step S5.
2. integrated multilayer grade as described in claim 1 turns the load transfer method for strategy, which is characterized in that
In step S3, it on the basis of analysis turns for path, will turn to be divided into three classes for load: turn to represent for path I without effective,
Turn to represent for off-capacity II, effectively turns to represent for path III.
3. integrated multilayer grade as claimed in claim 2 turns the load transfer method for strategy, which is characterized in that
In step S4, after obtaining I, II, Group III load, according to different targets, turned using different for strategy:
Substation's full cut-off first passes through topology search and obtains tri- type load of I, II, III, if there is I type load, is turned with bus for strategy,
Then preferential band supplies in the following order, and band is cut off for the I type load that bus capacity can not support, and II type load selects secondary turn
Generation, Group III load are turned by basis for producing；
Main transformer has a power failure, and first judges that can normal main transformer band be used only for if if energy band completely and stand for the load of power failure main transformer completely
Otherwise interior bus statements based on collusion strategy first passes through topology search and obtains tri- type load of I, II, III, normal main transformer can not with confession by with
Lower sequence carries out transfer until meeting interior bus statements based on collusion strategy of standing: first stage Group III load turns to produce for strategy by basis,
Second stage II type load is produced by secondary turn for strategy, the excision of phase III I type load；
Bus full cut-off first passes through topology search and obtains tri- type load of I, II, III, and the excision of I type load, II type load considers secondary
Turn generation strategy, Group III load turns to produce for strategy by basis；
Have a power failure on distribution network feeder and feeder line, first passes through topology search and obtain tri- type load of I, II, III, the excision of I type load, II
Type load considers that secondary turn of generation strategy, Group III load turn to produce for strategy by basis.
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Cited By (4)
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| CN110957724A (en) * | 2019-12-16 | 2020-04-03 | 深圳供电局有限公司 | Method for evaluating operation mode and grid structure of power distribution network |
| CN112134353A (en) * | 2020-09-01 | 2020-12-25 | 珠海欧力配网自动化股份有限公司 | Distributed power distribution method based on GOOSE and power distribution automation terminal |
| CN112165100A (en) * | 2020-09-18 | 2021-01-01 | 国网福建省电力有限公司龙岩供电公司 | Power grid over-supply power online control method and equipment |
| CN112180188A (en) * | 2020-09-04 | 2021-01-05 | 国网江苏省电力有限公司电力科学研究院 | Medium-voltage distribution network switching operation identification method and device based on machine learning |
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| CN110148934A (en) * | 2019-03-27 | 2019-08-20 | 国网浙江省电力有限公司绍兴供电公司 | Consider that the distribution network load of secondary turn of confession turns for method |
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| CN108448571A (en) * | 2018-03-16 | 2018-08-24 | 国网浙江省电力公司绍兴供电公司 | A kind of distribution network load transfer method considering distributed generation resource |
| CN109858672A (en) * | 2018-12-26 | 2019-06-07 | 国网江苏省电力有限公司苏州供电分公司 | Consider that regional internet turns the main adapted integration scope of power outage appraisal procedure supplied |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110957724A (en) * | 2019-12-16 | 2020-04-03 | 深圳供电局有限公司 | Method for evaluating operation mode and grid structure of power distribution network |
| CN110957724B (en) * | 2019-12-16 | 2023-10-24 | 深圳供电局有限公司 | Power distribution network operation mode and grid structure evaluation method |
| CN112134353A (en) * | 2020-09-01 | 2020-12-25 | 珠海欧力配网自动化股份有限公司 | Distributed power distribution method based on GOOSE and power distribution automation terminal |
| CN112180188A (en) * | 2020-09-04 | 2021-01-05 | 国网江苏省电力有限公司电力科学研究院 | Medium-voltage distribution network switching operation identification method and device based on machine learning |
| CN112180188B (en) * | 2020-09-04 | 2023-10-24 | 国网江苏省电力有限公司电力科学研究院 | Medium-voltage distribution network transfer operation identification method and device based on machine learning |
| CN112165100A (en) * | 2020-09-18 | 2021-01-01 | 国网福建省电力有限公司龙岩供电公司 | Power grid over-supply power online control method and equipment |
| CN112165100B (en) * | 2020-09-18 | 2022-04-01 | 国网福建省电力有限公司龙岩供电公司 | Power grid over-supply power online control method and equipment |
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