CN105529702A - Method for improvement on electric network and service expansion by using single-ring network structure - Google Patents
Method for improvement on electric network and service expansion by using single-ring network structure Download PDFInfo
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- CN105529702A CN105529702A CN201610029241.8A CN201610029241A CN105529702A CN 105529702 A CN105529702 A CN 105529702A CN 201610029241 A CN201610029241 A CN 201610029241A CN 105529702 A CN105529702 A CN 105529702A
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- ring network
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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
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention relates to a method for improvement on electric network and service expansion by using a single-ring network structure. The method comprises the following steps of (1) determining a wiring mode to a single-ring network node mode, namely a path of circuit journey ring network is led from each of two substations, the ring network circuits are lay in parallel and has no branches, the ring network circuits are connected by copper cables, and the copper cables are connected by a ring network cabinet; and (2) determining a contact point, wherein the contact point is an opened ring point and is arranged at the middle position of a single ring network, and the average allocation of circuit loads of the single ring network is facilitated. By the improvement on the single ring network mode, engineering construction is facilitated, the standard structural proportion of the circuit can be rapidly increased, a newly-formed power grid structure of a matched engineering can be constrained, and meanwhile, the ring network structure transiting to the whole line in future is also facilitated.
Description
Technical field
The invention belongs to electric power project engineering field in electric network reconstruction, particularly a kind of method utilizing Single-ring network structure to carry out electrical network and industry expansion transformation.
Background technology
Current electric network composition presents multiple-limb, multi-joint network, baroque feature, especially cable line, and not main line and branch line are not distinguished clearly, and there is multiple contact between same transformer station and different substation.Along with the development of automatic technology, power distribution automation studies and judges the main trend that function has become distribution network failure process automatically, but under current electric network composition, automatically equipment of studying and judging needs the load condition judging existing contact one by one, thus determine the non-faulting sub-load of faulty line to shift to All other routes, thus ensure the reliable electricity consumption of user.If electric network composition is too complicated and contacted many, will causes on the one hand and study and judge number of times and time lengthening, directly affect fault handling time; On the other hand, in the process of transfer, duplicate supply user may cause the reduction of power supply reliability due to the transfer of load.Therefore, form contact appropriateness, the simple electric network composition of structure, become power distribution automation realization one keeps in check greatly.As shown in Figure 1,10 kilovolt 1,2,3,4 are respectively from transformer station A, B, C, D, got in touch with each other by ring main unit, line construction is comparatively complicated, circuit 2 has three contacts, if circuit 2 fault, after judgement fault, need to analyze 1,3,4 three-line load conditions one by one and whether can fall road, seriously constraining fault handling time.And circuit 1,3,4 only has a contact, any line fault of this three-line, all needs to circuit 2 transfer load, and in order to ensure line load ability, circuit 2 peak load is 50% of line energizing flow amount, have impact on circuit economical operation ability.Simultaneously circuit 1 also exists from ring and large branch without contact situation.Wherein line fault between 4# ring main unit and 41# ring main unit, will cause the extremely institute's on-load power failure of 41#, 42#, 43#, 44# ring main unit; Line fault between 2# ring main unit and 21# ring main unit, will cause the extremely institute's on-load power failure of 21#, 22#, 23#, 24# ring main unit, for electric power netting safe running brings hidden danger.
Existing line, in the process transformed to Single-ring network, needs to carry out a large amount of cutting and changes and new outlet work.Building city, road construction, route and the biggest problem becoming and restrict track remodelling that repeatedly has a power failure, quantities is great on the one hand, and routing problem is concentrated, and implements inconvenience; The Business extend project of transformation circuit periphery on the other hand, may exist track remodelling engineering and occur simultaneously, and in such cases, if engineering sequencing can not be handled well, will cause and repeats construction and repeat to have a power failure, and is therefore difficult to realize once transforming circuit putting in place.Therefore, in electrical network and Business extend project, how to carry out track remodelling, and track remodelling is to what degree, becomes single site network shelf structure and improve the large difficult point existed in process.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, and propose a kind of method utilizing Single-ring network structure to carry out electrical network and industry expansion transformation.
The present invention solves its technical problem and takes following technical scheme to realize:
Utilize Single-ring network structure to carry out a method for electrical network and industry expansion transformation, comprise step as follows:
(1) connection type is defined as Single-ring network joint form, namely respectively goes out a circuit stroke looped network by Liang Ge transformer station, loop grid parallel laying, circuit is without branch, and loop grid, with copper cable wiring, connects with ring main unit between copper cable,
(2) determination of contact point, contact point is open loop point, is located at the centre position of Single-ring network, is convenient to the mean allocation of Single-ring network line load.
And the Single-ring network every bar loop grid length 5 kilometers in described step (1), circuit adopts the copper cable wiring of 240 square millimeters, cross section, every section of copper cable length 500 meters.
And the looped network of described step (1) is specifically in series by 9 ring main units, and each ring main unit scale is go out into three, and each ring main unit is all equipped with automatic control panel two sides.
And all looped network node, all according to power distribution automation standard working-out, lays optical fiber the same period to user side in each Single-ring network of described step (1).
And described whole looped network node specifically comprises ring main unit, box station and switchgear house.
Advantage of the present invention and good effect are:
1, Single-ring network form transformation of the present invention, is convenient to engineering construction, can improves rapidly line standard structure proportion.
2, the present invention will increase conveyance system newly as independent Single-ring network consideration, can retrain conveyance system and newly form electric network composition, also be convenient to realize ring network structure transition to all fronts simultaneously in the future.
Accompanying drawing explanation
Fig. 1 is the 10 kilovolt schematic diagrams related in the present invention.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is further described: it is emphasized that; embodiment of the present invention is illustrative; instead of it is determinate; therefore the present invention is not limited to the embodiment described in embodiment; every other execution mode drawn by those skilled in the art's technical scheme according to the present invention, belongs to the scope of protection of the invention equally.
Utilize Single-ring network structure to carry out a method for electrical network and industry expansion transformation, comprise step as follows:
(1) determine that connection type forms Single-ring network node, Single-ring network structure is for respectively to go out a circuit stroke looped network by Liang Ge transformer station, loop grid parallel laying, circuit without branch, every bar loop grid length 5 kilometers, circuit adopts the copper cable wiring of 240 square millimeters, cross section, every section of copper cable length 500 meters, connect with ring main unit between copper cable, looped network is in series by 9 ring main units, each ring main unit scale is go out into three, and each ring main unit is all equipped with automatic control panel two sides;
(2) determination of contact point, contact point is open loop point, is located at the centre position of looped network, is convenient to the mean allocation of loop grid load,
This kind of liaison method, in electric network composition, simplifies branch, the open loop point of every bar circuit and contact point is fixed, improves the promptness that power distribution automation is studied and judged automatically.In line load, define the ring main unit quantity of challengeing circuit by oneself, still maintain single line and possess contact, ensure that failure condition load can all shift.In Specific construction, unify quantity and the scale of ring main unit, improved the efficiency of purchase of goods and materials.Article two, between thread-changing, contact point is located in ring main unit, simplifies external routes and goes through the formalities, and improves the efficiency of construction.
In the concrete enforcement of the inventive method, in each Single-ring network module, all looped network node, all according to power distribution automation standard working-out, lays optical fiber the same period to user side.Wherein, described whole looped network node specifically comprises: ring main unit, box station and switchgear house.
Claims (5)
1. utilize Single-ring network structure to carry out a method for electrical network and industry expansion transformation, it is characterized in that comprising step as follows:
(1) connection type is defined as Single-ring network joint form, namely respectively goes out a circuit stroke looped network by Liang Ge transformer station, loop grid parallel laying, circuit is without branch, and loop grid, with copper cable wiring, connects with ring main unit between copper cable,
(2) determination of contact point, contact point is open loop point, is located at the centre position of Single-ring network, is convenient to the mean allocation of Single-ring network line load.
2. the method utilizing Single-ring network structure to carry out electrical network and industry expansion transformation according to claim 1, it is characterized in that: the Single-ring network every bar loop grid length 5 kilometers in described step (1), circuit adopts the copper cable wiring of 240 square millimeters, cross section, every section of copper cable length 500 meters.
3. the method utilizing Single-ring network structure to carry out electrical network and industry expansion transformation according to claim 1, it is characterized in that: the looped network of described step (1) is specifically in series by 9 ring main units, each ring main unit scale is go out into three, and each ring main unit is all equipped with automatic control panel two sides.
4. the method utilizing Single-ring network structure to carry out electrical network and industry expansion transformation according to claim 1, it is characterized in that: in each Single-ring network of described step (1), all looped network node, all according to power distribution automation standard working-out, lays optical fiber the same period to user side.
5. the method utilizing Single-ring network structure to carry out electrical network and industry expansion transformation according to claim 4, is characterized in that: described whole looped network node specifically comprises ring main unit, box station and switchgear house.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610029241.8A CN105529702A (en) | 2016-01-18 | 2016-01-18 | Method for improvement on electric network and service expansion by using single-ring network structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610029241.8A CN105529702A (en) | 2016-01-18 | 2016-01-18 | Method for improvement on electric network and service expansion by using single-ring network structure |
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| CN105529702A true CN105529702A (en) | 2016-04-27 |
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| CN201610029241.8A Pending CN105529702A (en) | 2016-01-18 | 2016-01-18 | Method for improvement on electric network and service expansion by using single-ring network structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601188A (en) * | 2019-09-20 | 2019-12-20 | 国网天津市电力公司 | Rapid processing method for large-area power failure of power distribution network based on optimal regional load transfer strategy |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104466949A (en) * | 2014-11-18 | 2015-03-25 | 国网安徽省电力公司阜阳供电公司 | Method for 10 kV main and auxiliary line ring grid layout in small-medium urban districts in plain area |
| CN104767204A (en) * | 2015-03-02 | 2015-07-08 | 国家电网公司 | 3-1 wiring mode based on macrocosm urbanization modern power distribution network |
| CN104882883A (en) * | 2015-06-29 | 2015-09-02 | 国家电网公司 | 10 KV power distribution network system |
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2016
- 2016-01-18 CN CN201610029241.8A patent/CN105529702A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104466949A (en) * | 2014-11-18 | 2015-03-25 | 国网安徽省电力公司阜阳供电公司 | Method for 10 kV main and auxiliary line ring grid layout in small-medium urban districts in plain area |
| CN104767204A (en) * | 2015-03-02 | 2015-07-08 | 国家电网公司 | 3-1 wiring mode based on macrocosm urbanization modern power distribution network |
| CN104882883A (en) * | 2015-06-29 | 2015-09-02 | 国家电网公司 | 10 KV power distribution network system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601188A (en) * | 2019-09-20 | 2019-12-20 | 国网天津市电力公司 | Rapid processing method for large-area power failure of power distribution network based on optimal regional load transfer strategy |
| CN110601188B (en) * | 2019-09-20 | 2023-03-03 | 国网天津市电力公司 | Rapid processing method for large-area power failure of power distribution network based on optimal regional load transfer strategy |
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Application publication date: 20160427 |