CN107658872A - A kind of electric network reconstruction method for optimizing the access of 35 kv substations - Google Patents
A kind of electric network reconstruction method for optimizing the access of 35 kv substations Download PDFInfo
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- CN107658872A CN107658872A CN201711002680.0A CN201711002680A CN107658872A CN 107658872 A CN107658872 A CN 107658872A CN 201711002680 A CN201711002680 A CN 201711002680A CN 107658872 A CN107658872 A CN 107658872A
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- 238000000844 transformation Methods 0.000 claims 1
- 238000005457 optimization Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 3
- 230000006837 decompression Effects 0.000 description 3
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Classifications
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- H02J3/005—
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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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- 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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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Abstract
A kind of electric network reconstruction method of the kv substation of optimization 35 access of the present invention comprises the following steps：Step 1, the present situation and planning data of 35 kv substations access power network are collected；Step 2, judge whether 35 kv substations access power network meets transformation condition；Step 3,35 kv substations access power network is transformed.The characteristics of present invention is by studying and judging regional power grid structure, on the premise of not increasing or rationally increasing quantities, newly go out twice large-section leads from 220 kv substations to access on 35 kilovolts of buses of 110 kv substations, it is 35 kilovolts of switchyards by 35 kilovolts of side views of 110 kv substations, 110 kv substation, 35 kilovolts of side service entrance switch are opened, the kv substation load of periphery 35 is connected to 220 kv substations by 35 kilovolts of switchyards, so as to improve 110 kv substation, 10 kilovolts of side power supply capacities, reduce transformation level, reduce line loss, save track investment.
Description
Technical field
The present invention relates to Power System Planning technical field, specifically a kind of electricity for optimizing the access of 35 kv substations
Net remodeling method.
Background technology
In recent years, as the fast development of domestic economy, power grid construction grow continuously and fast, substation location quantity at different levels
It is continuously increased, uncoordinated phenomenon, such as subregion especially 35 kilovolts of rural power grids region power transformation occur in some areas power networks at different levels
Power supply of standing comes from 110 kv substations more, thus causes problems with：
1st, 110 kv substation power transformation capacities are occupied by 35 kilovolts of loads more, and 10 kilovolts of side power supply capacities are weaker, Wu Faman
Sufficient Regional Economic Development demand, or 110 new kv substations of inappropriately high standard construction of having to, investment increase.
2nd, relative to 220/35 kilovolt decompression for, by 110/35 kilovolt decompression there are problems that repeatedly decompression, line loss compared with
Greatly.
3rd, if newly going out line powering by 220 kv substations there is power supply in newly-built 35 kv substation (including subscriber station)
Distance, circuit return the shortcomings of number is more, track investment is big, 35 kilovolts of outgoing line intervals occupancy of transformer station are more.
Therefore, in Electric Power Network Planning, take into full account that the reasonable kv substation of reconfiguration 35, reduction repeat be depressured, improve each electricity
Press science, the economy of the operation of grade transformer substation main transformer significant for guarantee grid health, fast development.
The content of the invention
In view of the deficienciess of the prior art, the present invention proposes a kind of electric network reconstruction for optimizing the access of 35 kv substations
Method, it can improve 35 kilovolts of sides of 220 kv substations, 110 kv substation, 10 kilovolts of side joint band abilities, optimize rack
Structure, lifting region power supply capacity.
The present invention solves its technical problem and adopted the technical scheme that：
It is provided in an embodiment of the present invention it is a kind of optimize 35 kv substations access electric network reconstruction method, it can include with
Lower step：
Step 1, the present situation and planning data of 35 kv substations access power network are collected；
Step 2, judge whether 35 kv substations access power network meets transformation condition；
Step 3,35 kv substations access power network is transformed.
As a kind of possible implementation of the present embodiment, the detailed process of the step 2 comprises the following steps：
Step 21, judge a certain 110kV transformer stations using 110/35/10 kilovoltage sequence at present or whether planning goes out
Existing heavily loaded phenomenon, if yes then enter in next step, otherwise exit；
Step 22, judge whether 35 kilovolts of side loads of the 110kV transformer stations are larger, it is no if yes then enter next step
Then exit；
Step 23, whether judge 220 kv substations on the 110kV transformer stations periphery has 35 kilovolts of standby outgoing line intervals,
If it is 35 kv substations access power network is transformed, otherwise exited.
As a kind of possible implementation of the present embodiment, then judge when the load factor of 110kV transformer stations is more than 70%
35 kilovolts of side loads of the 110kV transformer stations are larger situation.
It is in step 3, described that 35 kv substations access power network is entered as a kind of possible implementation of the present embodiment
The process of row transformation newly goes out 2 loop line roads to 110 kv substation for 220 kv substations from 110kV transformer stations periphery
35 kilovolts of buses.
As a kind of possible implementation of the present embodiment, the detailed process of the step 3 comprises the following steps：
Step 31,2 times heavy in section circuits are newly gone out to described 110 from 220 nearest kv substations of distance 110kV transformer stations
35 kilovolts of buses of kv substation, and be 35 kilovolts of switchyards by 35 kilovolts of side views of 110 kv substation
Step 32,35 kilovolts of side service entrance switch of 110 kv substations are opened, by the periphery 35 of 110 kv substations
Kv substation load is connected to 220 kv substation by 35 kilovolts of switchyards.
It is further comprising the steps of as a kind of possible implementation of the present embodiment, the detailed process of the step 3：
Step 33, when the load factor of the kv substation of 110 kv substation higher level power supply point 220 is higher than 60%,
Then newly-built 110 kv substation, and by its inlet wire reconfiguration to other 220 kv substations；If the region has formed 35 kilovolts
Power network, then using 110/35/10 voltage change layer；
Step 34, the three-winding transformer of 110 kv substation is rotated to the newly-built change layer of use 110/35/10
110 kv substations, while use 110 kv substation instead two-winding transformer tape splicing 10 kilovolts of loads.
The technical scheme of the embodiment of the present invention can have the advantage that as follows：
The characteristics of technical scheme of the embodiment of the present invention is by studying and judging regional power grid structure, is not increasing or rationally increasing engineering
On the premise of amount, newly go out twice large-section leads from 220 kv substations and access on 35 kilovolts of buses of 110 kv substations,
It is 35 kilovolts of switchyards by 35 kilovolts of side views of 110 kv substations, by 110 kv substation, 35 kilovolts of side service entrance switch
Open, kv substation (subscriber station) load of periphery 35 is connected to 220 kv substations by 35 kilovolts of switchyards, so as to improve
110 kv substation, 10 kilovolts of side power supply capacities, reduce transformation level, reduce line loss, save track investment, simultaneously
The utilization ratio of 220 35 kilovolts of outgoing line intervals of kv substation can be improved.
Technical scheme of the embodiment of the present invention by double back large-section lead, (lead by model JL/G1A-300 and the aerial of the above
Line) reconfiguration can improve 220 kv substation, 35 kilovolts of sides, the load tape splicing ability of 110 kv substation, 10 kilovolts of sides, rationally
Tape splicing load, improve block supply ability；And calmodulin binding domain CaM grid structure, former three-winding transformer is rotated to newly-built power transformation
Stand, avoid the wasting of resources.
Brief description of the drawings
Fig. 1 is a kind of electric network reconstruction method stream of the kv substation of optimization 35 access according to an exemplary embodiment
Cheng Tu；
Fig. 2 is a kind of structural representation of 220/110/35 kilovolt of access way power network in certain region in the prior art；
Fig. 3 is to carry out improved structural representation to power network shown in Fig. 2 using technical scheme of the embodiment of the present invention.
Embodiment
For the technical characterstic for illustrating this programme can be understood, below by embodiment, and its accompanying drawing is combined, to this hair
It is bright to be described in detail.Following disclosure provides many different embodiments or example is used for realizing the different knots of the present invention
Structure.In order to simplify disclosure of the invention, hereinafter the part and setting of specific examples are described.In addition, the present invention can be with
Repeat reference numerals and/or letter in different examples.This repetition is that for purposes of simplicity and clarity, itself is not indicated
Relation between various embodiments are discussed and/or set.It should be noted that part illustrated in the accompanying drawings is not necessarily to scale
Draw.Present invention omits the description to known assemblies and treatment technology and process to avoid being unnecessarily limiting the present invention.
Fig. 1 is a kind of electric network reconstruction method stream of the kv substation of optimization 35 access according to an exemplary embodiment
Cheng Tu.As shown in figure 1, a kind of electric network reconstruction method for optimizing the access of 35 kv substations provided in an embodiment of the present invention, it can
To comprise the following steps：
Step 1, the present situation and planning data of 35 kv substations access power network are collected；
Step 2, judge whether 35 kv substations access power network meets transformation condition；
Step 3,35 kv substations access power network is transformed.
In a kind of possible implementation, the detailed process of the step 2 comprises the following steps：
Step 21, judge a certain 110kV transformer stations using 110/35/10 kilovoltage sequence at present or whether planning goes out
Existing heavily loaded phenomenon, if yes then enter in next step, otherwise exit；
Step 22, judge whether 35 kilovolts of side loads of the 110kV transformer stations are larger, it is no if yes then enter next step
Then exit；
Step 23, whether judge 220 kv substations on the 110kV transformer stations periphery has 35 kilovolts of standby outgoing line intervals,
If it is 35 kv substations access power network is transformed, otherwise exited.
In a kind of possible implementation, then judge that the 110kV becomes when the load factor of 110kV transformer stations is more than 70%
35 kilovolts of side loads in power station are larger situation.
It is in step 3, described that 35 kv substations are accessed with what power network was transformed in a kind of possible implementation
Process newly goes out 2 loop line roads to 35 kilovolts of 110 kv substation for 220 kv substations from 110kV transformer stations periphery
Bus.
In a kind of possible implementation, the detailed process of the step 3 comprises the following steps：Step 31, from distance
220 nearest kv substations of 110kV transformer stations newly go out 2 times heavy in section circuits to 35 kilovolts of mothers of 110 kv substation
Line, and be 35 kilovolts of switchyards by 35 kilovolts of side views of 110 kv substation；
Step 32,35 kilovolts of side service entrance switch of 110 kv substations are opened, by the periphery 35 of 110 kv substations
Kv substation load is connected to 220 kv substation by 35 kilovolts of switchyards.
In a kind of possible implementation, the detailed process of the step 3 is further comprising the steps of：
Step 33, when the load factor of the kv substation of 110 kv substation higher level power supply point 220 is higher than 60%,
Then newly-built 110 kv substation, and by its inlet wire reconfiguration to other 220 kv substations；If the region has formed 35 kilovolts
Power network, then using 110/35/10 voltage change layer；；
Step 34, the three-winding transformer of 110 kv substation is rotated to the newly-built change layer of use 110/35/10
110 kv substations, while use 110 kv substation instead two-winding transformer tape splicing 10 kilovolts of loads.
Fig. 2 is a kind of structural representation of 220/110/35 kilovolt of access way power network in certain region in the prior art；Fig. 3
It is that improved structural representation is carried out to power network shown in Fig. 2 using technical scheme of the embodiment of the present invention.As shown in Figures 2 and 3,
The detailed process transformed using technical scheme of the embodiment of the present invention the existing power network shown in Fig. 2 is：Collect electricity shown in Fig. 2
The present situation and planning data of net, judging to use 110 kv substation A of 110/35/10 kilovoltage sequence current or plan is
It is no heavily loaded phenomenon occur, if so, continuing to judge the 110kV transformer stations whether 35 kilovolts of side loads are larger；If judge periphery 220
Whether kv substation has 35 kilovolts of standby outgoing line intervals；If newly go out 2 times heavy in section circuits to 110 from 220 kv substations
35 kilovolts of buses of kv substation are transformed it.
As shown in Fig. 2 110 kv substation A and 220 kv substations I, apart from less than 3 kilometers, wave impedance is ignored.
The public station of 35 kilovolts of the main tape splicings of 110 kv substation A and the load of subscriber station.When 110 kv substation A load factors exceed
70% and 220 load factors of kv substation I when being less than 40%, while 220 kv substations I must possess 35kV intervals or can expand
35kV intervals are built, now it is considered that possessing the condition transformed using technical scheme of the embodiment of the present invention it.Using this
After inventive embodiments technical scheme is to power network is transformed shown in Fig. 2, with the continuous development of load, 220 kv substations I
Load factor improves constantly, when higher than 60%, for the sub-load of its tape splicing is transferred into 220 kv substations II and 220,000
Transformer station III is lied prostrate, the kv substation D of planning construction 110, the load of 220 kv substations I is reduced by the adjustment of the method for operation
Rate.Be present 35 kv grids for having had blank in 110 kv substation D regions, designed according to three-winding transformer.By 110
Kv substation A three-winding transformer is rotated to 110 kv substation D, and 110 kv substation A are become using double winding
10 kilovolts of loads of depressor tape splicing.
The characteristics of the present embodiment is by studying and judging regional power grid structure, on the premise of not increasing or rationally increasing quantities,
Newly go out twice large-section leads from 220 kv substations to access on 35 kilovolts of buses of 110 kv substations, by 110 kilovolts of changes
35 kilovolts of side views in power station are 35 kilovolts of switchyards, 110 kv substation, 35 kilovolts of side service entrance switch are opened, by periphery
35 kv substations (subscriber station) load is connected to 220 kv substations by 35 kilovolts of switchyards, so as to improve 110 kilovolts of changes
10 kilovolts of power station side power supply capacity, reduce transformation level, reduce line loss, save track investment, while can improve
The utilization ratio of 220 35 kilovolts of outgoing line intervals of kv substation.
The present embodiment can be carried by double back large-section lead (model JL/G1A-300 and the aerial condutor of the above) reconfiguration
High 220 kv substation, 35 kilovolts of sides, the load tape splicing ability of 110 kv substation, 10 kilovolts of sides, reasonable tape splicing load, improve
Block supply ability；And calmodulin binding domain CaM grid structure, former three-winding transformer is rotated to newly-built transformer station, avoids resource
Waste.
Simply the preferred embodiment of the present invention described above, for those skilled in the art,
Without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also regarded as this hair
Bright protection domain.
Claims (6)
1. a kind of electric network reconstruction method for optimizing the access of 35 kv substations, it is characterized in that, comprise the following steps：
Step 1, the present situation and planning data of 35 kv substations access power network are collected；
Step 2, judge whether 35 kv substations access power network meets transformation condition；
Step 3,35 kv substations access power network is transformed.
2. a kind of electric network reconstruction method for optimizing the access of 35 kv substations as claimed in claim 1, it is characterized in that, the step
Rapid 2 detailed process comprises the following steps：
Step 21, judge a certain 110kV transformer stations using 110/35/10 kilovoltage sequence at present or whether planning weight occurs
Phenomenon is carried, if yes then enter in next step, is otherwise exited；
Step 22, judge whether 35 kilovolts of side loads of the 110kV transformer stations are larger, if yes then enter in next step, otherwise move back
Go out；
Step 23, whether judge 220 kv substations on the 110kV transformer stations periphery has 35 kilovolts of standby outgoing line intervals, if
It is that 35 kv substations access power network is transformed, otherwise exited.
3. a kind of electric network reconstruction method for optimizing the access of 35 kv substations as claimed in claim 2, it is characterized in that, when
The load factor of 110kV transformer stations then judges that 35 kilovolts of side loads of the 110kV transformer stations are larger situation when being more than 70%.
4. a kind of electric network reconstruction method for optimizing the access of 35 kv substations as claimed in claim 2, it is characterized in that, in step
In 3, described is 220 kilovolts of power transformations from 110kV transformer stations periphery to the process transformed of 35 kv substations access power network
Stand and newly go out 2 loop line roads to 35 kilovolts of buses of 110 kv substation.
5. a kind of electric network reconstruction method for optimizing the access of 35 kv substations as claimed in claim 4, it is characterized in that, the step
Rapid 3 detailed process comprises the following steps：
Step 31,2 times heavy in section circuits are newly gone out to described 110 kilovolts from 220 nearest kv substations of distance 110kV transformer stations
35 kilovolts of buses of transformer station, and be 35 kilovolts of switchyards by 35 kilovolts of side views of 110 kv substation；
Step 32,35 kilovolts of side service entrance switch of 110 kv substations are opened, by 35 kilovolts of the periphery of 110 kv substations
Transformer station's load is connected to 220 kv substation by 35 kilovolts of switchyards.
6. a kind of electric network reconstruction method for optimizing the access of 35 kv substations as claimed in claim 5, it is characterized in that, the step
Rapid 3 detailed process is further comprising the steps of：
Step 33, when the load factor of the kv substation of 110 kv substation higher level power supply point 220 is higher than 60%, then newly
Build 110 kv substations, and by its inlet wire reconfiguration to other 220 kv substations；If the region has formed 35 kv grids,
Then use 110/35/10 voltage change layer；
Step 34, the three-winding transformer of 110 kv substation is rotated to the newly-built change layer of use 110/35/10
110 kv substations, while use 110 kv substation instead two-winding transformer tape splicing 10 kilovolts of loads.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711002680.0A CN107658872B (en) | 2017-10-24 | 2017-10-24 | Power grid transformation method for optimizing 35KV substation access |
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| CN201711002680.0A CN107658872B (en) | 2017-10-24 | 2017-10-24 | Power grid transformation method for optimizing 35KV substation access |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2461459A2 (en) * | 2010-12-01 | 2012-06-06 | Technische Universität Dortmund | Control system |
| CN103855618A (en) * | 2014-03-31 | 2014-06-11 | 国网上海市电力公司 | 10kV switching station |
| CN105354645A (en) * | 2015-12-02 | 2016-02-24 | 国网山东省电力公司经济技术研究院 | 220kV transformer substation load transfer method |
| CN106451462A (en) * | 2016-11-01 | 2017-02-22 | 国网上海市电力公司 | Method for improving transfer supply capability of substation of power distribution network |
| CN106487012A (en) * | 2016-11-30 | 2017-03-08 | 云南电网有限责任公司 | A kind of system of selection of high voltage distribution network powering mode and system |
-
2017
- 2017-10-24 CN CN201711002680.0A patent/CN107658872B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2461459A2 (en) * | 2010-12-01 | 2012-06-06 | Technische Universität Dortmund | Control system |
| CN103855618A (en) * | 2014-03-31 | 2014-06-11 | 国网上海市电力公司 | 10kV switching station |
| CN105354645A (en) * | 2015-12-02 | 2016-02-24 | 国网山东省电力公司经济技术研究院 | 220kV transformer substation load transfer method |
| CN106451462A (en) * | 2016-11-01 | 2017-02-22 | 国网上海市电力公司 | Method for improving transfer supply capability of substation of power distribution network |
| CN106487012A (en) * | 2016-11-30 | 2017-03-08 | 云南电网有限责任公司 | A kind of system of selection of high voltage distribution network powering mode and system |
Non-Patent Citations (1)
| Title |
|---|
| 汪东: "220KV寿州变电站综合自动化改造", 《中国优秀硕士论文全文数据库 工程科技II辑》 * |
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