CN201584809U - Looped network control system of medium-voltage power grid - Google Patents
Looped network control system of medium-voltage power grid Download PDFInfo
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- CN201584809U CN201584809U CN2009202464965U CN200920246496U CN201584809U CN 201584809 U CN201584809 U CN 201584809U CN 2009202464965 U CN2009202464965 U CN 2009202464965U CN 200920246496 U CN200920246496 U CN 200920246496U CN 201584809 U CN201584809 U CN 201584809U
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Abstract
The utility model relates to a looped network control system of a medium-voltage power grid, which is characterized in that the lopped network control system comprises four medium-voltage power distraction panels, each medium-voltage power distribution panel is supplied with power by two diesel generators, two ends of each medium-voltage power distribution panel are respectively connected with a bus coupler, two bus couplers on the two adjacent medium-voltage power distribution panels are connected in series, each medium-voltage power distribution panel is connected with two propellers and a transformer, and the two medium-voltage power distribution panels in the middle are respectively provided with a transformer used for variable-frequency driving for drilling. As a generation unit adopted by the looped network control system can supply power to one or two or three or four medium-voltage power distribution panels in the power grid optionally via the bus couplers and can switch mutually according to different working conditions, the looped network control system realizes high flexibility and can be widely applied to the field of petroleum exploration and development.
Description
Technical field
The utility model relates to a kind of grid control system, particularly is used for the looped network control system that the offshore oil exploration development process is installed in the medium voltage network on the deep water semi-submersible drill ship about a kind of.
Background technology
At present, generally adopt one section or two sections modes that the medium-voltage distribution dishes power for the full platform of deep water semi-submersible drilling platform in the petroleum exploration and development process at sea.Though the mode of a section or the power supply of two sections medium-voltage distribution dishes is simple in structure, its reliability is not high, when certain point wherein is out of order, is easy to cause whole medium-voltage distribution dish dead electricity, thereby causes the dead electricity of full platform.Dead electricity for the full platform of deep water semi-submersible drilling platform that adopts the electric propulsion device to position will be very serious fault, seek the high technical solution of reliability and seem and be even more important.
Summary of the invention
At the problems referred to above, the purpose of this utility model provides the looped network control system of higher, high economy of a kind of flexibility and medium voltage network that under any circumstance can operate as normal.
For achieving the above object, the utility model is taked following technical scheme: a kind of looped network control system of medium voltage network, it is characterized in that: it comprises four sections medium-voltage distribution dishes, every section described medium-voltage distribution dish is respectively by two diesel engine generator power supplies, the two ends of every section described medium-voltage distribution dish connect a bus connection switch respectively, two described bus connection switches on two adjacent described medium-voltage distribution dishes are connected in series, and connect two propellers and a transformer on every section described medium-voltage distribution dish respectively, on two sections described medium-voltage distribution dishes in centre position, also be respectively arranged with a transformer that is used for the drilling well frequency conversion drive.
The operational mode of four sections described medium-voltage distribution dishes be one section, two sections and four sections one of them.
The utility model is owing to take above technical scheme, it has the following advantages: 1, the utility model is because the generating set that adopts can be by bus connection switch one section arbitrarily, two sections or four sections medium-voltage distribution dish power supplies in electrical network, and mutual switching that can be under different operating modes, therefore realized the characteristics that flexibility is high.2, therefore the utility model can realize the optimized operation operating mode of diesel engine because medium voltage network adopts different compound modes, realizes that energy-conserving and environment-protective get performance, the economy height.3, therefore the utility model can be realized that the wherein one section medium-voltage distribution dish fault from electrical network is released the operation conditions of whole system, and can keep other three sections medium-voltage distribution dishes normally to move because employing is linked to be a closed loop electrical network with four medium-voltage distribution dishes.But in the utility model extensive use and the various oil exploration and development fields.
Description of drawings
Fig. 1 is a medium voltage network structural representation of the present utility model
Embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
As shown in Figure 1, the utility model comprises the medium-voltage distribution dish 1～4 of four sections 11kV, every section medium-voltage distribution dish 1～4 is respectively by 5 power supplies of two diesel engine generators, the two ends of every section medium-voltage distribution dish 1～4 connect a bus connection switch 6 respectively, two bus connection switches 6 on two adjacent medium-voltage distribution dishes are connected in series, and connect propeller 7 and a 11kV/480V transformer 8 of two 360 ° of full circle swingings on every section medium-voltage distribution dish 1～4 respectively.Wherein, on medium-voltage distribution dish 2,3, also be respectively arranged with a 11kV/720V transformer 9, be used for to the drilling well frequency conversion drive.
Every section medium-voltage distribution dish 1～4 is powered by two diesel engine generators 5 separately respectively, and by behind closed two bus connection switches 6 separately, four sections medium-voltage distribution dishes 1～4 is concatenated into the electrical network of a closed loop.7 power supplies of 1～4 pair of two propeller of every section medium-voltage distribution dish, and then make 7 pairs of drilling platforms of each propeller carry out the deep water location.
In the foregoing description, can be according to different operating modes, by closed or disconnect each bus connection switch 6, realize that medium voltage network carries out the different partition running modes of one section, two sections or four sections medium-voltage distribution dish 1～4.
The utility model in use; by the power management system system of the present utility model is controlled; when carrying out four sections medium-voltage distribution dish 1～4 operational modes; when wherein one section medium-voltage distribution dish 1～4 breaks down; the protection action in time separates the bus connection switch 6 on this medium-voltage distribution dish 1～4; guarantee other medium-voltage distribution dish 1～4 normal power supplies, dwindled the power failure scope.Therefore, realized and to have inferred the operation conditions of whole system from the fault of one section medium-voltage distribution dish 1～4 wherein, and realized that under any circumstance drilling platforms can be worked normally.
In the various embodiments described above, can also there be other to change with being connected in structure, every based on the changes and improvements on the technical solutions of the utility model, should not get rid of outside protection range of the present utility model.
Claims (1)
1. the looped network control system of a medium voltage network, it is characterized in that: it comprises four sections medium-voltage distribution dishes, every section described medium-voltage distribution dish is respectively by two diesel engine generator power supplies, the two ends of every section described medium-voltage distribution dish connect a bus connection switch respectively, two described bus connection switches on two adjacent described medium-voltage distribution dishes are connected in series, and connect two propellers and a transformer on every section described medium-voltage distribution dish respectively, on two sections described medium-voltage distribution dishes in centre position, also be respectively arranged with a transformer that is used for the drilling well frequency conversion drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202464965U CN201584809U (en) | 2009-10-27 | 2009-10-27 | Looped network control system of medium-voltage power grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202464965U CN201584809U (en) | 2009-10-27 | 2009-10-27 | Looped network control system of medium-voltage power grid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201584809U true CN201584809U (en) | 2010-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202464965U Expired - Fee Related CN201584809U (en) | 2009-10-27 | 2009-10-27 | Looped network control system of medium-voltage power grid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201584809U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107810583A (en) * | 2015-06-26 | 2018-03-16 | 西门子股份公司 | DC power networks |
| CN108683252A (en) * | 2018-05-25 | 2018-10-19 | 中广核工程有限公司 | Nuclear power plant's power supply system |
| CN111864737A (en) * | 2020-07-23 | 2020-10-30 | 国网北京市电力公司 | Device and method for quickly switching load of festoon lamp |
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
-
2009
- 2009-10-27 CN CN2009202464965U patent/CN201584809U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107810583A (en) * | 2015-06-26 | 2018-03-16 | 西门子股份公司 | DC power networks |
| CN108683252A (en) * | 2018-05-25 | 2018-10-19 | 中广核工程有限公司 | Nuclear power plant's power supply system |
| CN111864737A (en) * | 2020-07-23 | 2020-10-30 | 国网北京市电力公司 | Device and method for quickly switching load of festoon lamp |
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee after: China National Offshore Oil Corporation Patentee after: CNOOC Research Institute Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee before: China National Offshore Oil Corporation Patentee before: CNOOC Research Center |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20151027 |
|
| EXPY | Termination of patent right or utility model |