CN107171295A - A kind of oil field distribution network fault handling method - Google Patents
A kind of oil field distribution network fault handling method Download PDFInfo
- Publication number
- CN107171295A CN107171295A CN201710222901.9A CN201710222901A CN107171295A CN 107171295 A CN107171295 A CN 107171295A CN 201710222901 A CN201710222901 A CN 201710222901A CN 107171295 A CN107171295 A CN 107171295A
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- CN
- China
- Prior art keywords
- oil
- distribution network
- field distribution
- generator
- pumping unit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
Abstract
The present invention relates to a kind of oil field distribution network fault handling method, when detecting the oil field distribution network and breaking down, the position of trouble point is searched；The circuit of the oil field distribution network is disconnected in the trouble point, and judges whether the failure is non-permanent failure；It is that will be switched off a recovery connection, and the oil pumper component batch initiation in the circuit that described and bus is disconnected；Otherwise the generator of the oil pumping unit on the circuit that will be disconnected with the bus with the cut-off point recently starts, and active power is provided for the circuit that is disconnected with the bus.The present invention carries out corresponding troubleshooting after line fault is detected according to the type of failure, so as to ensure the normal work of oil pumping unit.
Description
Technical field
The present invention relates to a kind of oil field distribution network fault handling method.
Background technology
Oil field distribution network is typically powered using single supply in the prior art, defeated for oil pumping unit by radioactivity network structure
Distribution, multiple oil pumping units are connected in series on main bus-bar, and electric line is longer, and line loss is big, the pressure of electric line end
Drop is very big, and the oil pumping unit voltage in line end is relatively low, it is impossible to meet normal work demand；And many oil pumper series connection connect
Main bus-bar is connected to, wherein when an oil pumper breaks down, the equal cisco unity malfunction of follow-up oil pumper can be caused, when serious even
Whole piece line outage is caused, transmission ＆ distribution electrical property is unreliable.
The content of the invention
The technical problems to be solved by the invention, which are to provide one kind, can detect road failure in time, and according to failure
Type carries out corresponding troubleshooting, to ensure the oil field distribution network fault handling method of oil pumping unit normal work.
The oil field distribution network fault handling method of the present invention, comprises the following steps：
First, main bus-bar is set, and the oil field distribution network that some oil pumping units are constituted is connected in series to main bus-bar, unit of each pumping
Including generator, oil pumper and motor, the oil pumper of oil pumping group machine is connected by motor with main bus-bar, generator also with master
Bus is connected；
Secondly, during oil field distribution network normal work, the generator of the end oil pumping unit farthest apart from main bus-bar starts, and is end
Unit of pumping provides reactive power；The generator of oil pumping unit in addition to the oil pumper of end is in hot standby state；
Again, when detecting the oil field distribution network and breaking down, the position of trouble point is searched；
The circuit of oil field distribution network is disconnected in the trouble point, and judges whether the failure is non-permanent failure；
It is that will be switched off a recovery connection, and the oil pumper component batch initiation in the circuit that will be disconnected with main bus-bar；
Otherwise the generator of the oil pumping unit on the circuit that will be disconnected with main bus-bar with cut-off point recently starts, and is and and main bus-bar
The circuit of disconnection provides active power.
Oil pumper component batch initiation program in the circuit that will be disconnected with main bus-bar is specifically included：
Calculate the reactive power required for every group of oil pumping unit in the circuit for starting and being disconnected with main bus-bar；
The reactive power needed according to every group of oil pumping unit disconnects the oil pumper set in the oil pumping unit of quantity with motor；
The oil pumping unit starting that oil pumper in the circuit that will be disconnected with main bus-bar is normally connected with motor；
After the oil pumping unit normal work that unit of pumping normally is connected with motor, the oil pumper that will be switched off is respectively connected to correspondence
Motor, and start be linked into oil field distribution network.
The generator is gas electricity generator.
The power capacity of the generator of each oil pumping unit in addition to unit is pumped in end is more than the institute of oil field distribution network
There is the power capacity sum of the motor of oil pumping unit.
The power of the generator of the end oil pumping unit is less than each oil pumping unit in addition to unit is pumped in end
The power of generator.
When generator provides reactive power, there is provided the magnitude of voltage continuously adjustabe that the generator of reactive power is exported.
The non-permanent failure is the failure that can not recover automatically within the default time.
The motor is asynchronous motor.
The oil field distribution network fault handling method of the present invention, provide nothing using low capacity gas electricity generator for line end
Work(power is supported, and can be continuously adjusted, and line end voltage is brought up into any setting value；Small-capacity generator can be with
Hold in the line during failure and provide active power and reactive power for line end, line end is normally run；Circuit middle-end
Gas electricity generator after system power supply exits power supply, can bear the function of back-up source, circuit non-faulting is rectified Chang Yun
OK, reduce fault outage scope, reduce fault outage loss.In addition, the present invention is by judging failure, when failure is non-
During permanent fault, in communication line, by the way of start in batches, by the way that part oil pumper and motor are disconnected, profit
Reactive power is provided with motor, it is not necessary to which external equipment provides reactive power, so as to simplify failover process, improve
Fault restoration efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the oil field distribution network of the embodiment of the present invention；
Fig. 2 is the flow chart of the fault handling method of the oil field distribution network of the present invention；
Fig. 3 is the step S3 of the oil field distribution network fault handling method of present invention particular flow sheet.
Embodiment
As illustrated, a kind of oil field distribution network fault handling method, comprises the following steps：
First, main bus-bar is set, and the oil field distribution network that some oil pumping units are constituted is connected in series to main bus-bar, unit of each pumping
Including generator, oil pumper and motor, the oil pumper of oil pumping group machine is connected by motor with main bus-bar, generator also with master
Bus is connected；
Secondly, during oil field distribution network normal work, the generator of the end oil pumping unit farthest apart from main bus-bar starts, and is end
Unit of pumping provides reactive power；The generator of oil pumping unit in addition to the oil pumper of end is in hot standby state；
Again, when detecting the oil field distribution network and breaking down, the position of trouble point is searched；
The circuit of oil field distribution network is disconnected in the trouble point, and judges whether the failure is non-permanent failure；
It is that will be switched off a recovery connection, and the oil pumper component batch initiation in the circuit that will be disconnected with main bus-bar；
Otherwise the generator of the oil pumping unit on the circuit that will be disconnected with main bus-bar with cut-off point recently starts, and is and and main bus-bar
The circuit of disconnection provides active power.
Oil pumper component batch initiation program in the circuit that will be disconnected with main bus-bar is specifically included：
Calculate the reactive power required for every group of oil pumping unit in the circuit for starting and being disconnected with main bus-bar；
The reactive power needed according to every group of oil pumping unit disconnects the oil pumper set in the oil pumping unit of quantity with motor；
The oil pumping unit starting that oil pumper in the circuit that will be disconnected with main bus-bar is normally connected with motor；
After the oil pumping unit normal work that unit of pumping normally is connected with motor, the oil pumper that will be switched off is respectively connected to correspondence
Motor, and start be linked into oil field distribution network.
The generator is gas electricity generator.
The power capacity of the generator of each oil pumping unit in addition to unit is pumped in end is more than the institute of oil field distribution network
There is the power capacity sum of the motor of oil pumping unit.
The power of the generator of the end oil pumping unit is less than each oil pumping unit in addition to unit is pumped in end
The power of generator.
When generator provides reactive power, there is provided the magnitude of voltage continuously adjustabe that the generator of reactive power is exported.
The non-permanent failure is the failure that can not recover automatically within the default time.
The motor is asynchronous motor.
Reference picture 1, oil field distribution network of the invention is specifically included：
Main bus-bar 10, is connected to multiple oil pumping units being connected in series of main bus-bar, and each oil pumping unit includes generator 20, taken out
Oil machine 30 and motor 40, generator 20 are directly connected to main bus-bar 10, and oil pumper 30 is connected to main bus-bar 10 by motor 40.
When oil field distribution network normal work, the oil pumper farthest apart from main bus-bar is that the generator of end oil pumper is opened
It is dynamic, reactive power is provided for end oil pumper, other generators are in hot standby state.
The oil pumper 30 of the present embodiment is beam pumping unit, and power set and balance weight one are used as by asynchronous motor 40
Rise and drive crank suspension point to move reciprocatingly, complete oil recovery process.
The generator of the present embodiment is gas electricity generator, gas electricity generator be one kind with liquefied gas, natural gas etc. for fuel
High efficiency generator, because fuel is in liberal supply, thus in the oil field distribution network through low resistance grounding have good use
Prospect.
The setting of the generator of the present embodiment sets different power according to different positions, due to end oil pumping unit
Generator is mainly used for providing reactive power, therefore end generator capacity power setting is less than other oil pumping units
Power capacity, its excitation multiple is higher, provides higher voltage for end oil pumping unit, allows line end oil pumper normal
Work, and the magnitude of voltage of generator output is continuously adjustabe.
The power capacity of the generator of each oil pumping unit outside end oil pumping unit is more than the asynchronous of all oil pumpers
The power capacity sum of motor, so as to can be normal as substitute electric power when the connection with main bus-bar is broken down
Oil pumper is powered.
Based on above-mentioned oil field distribution network, the invention provides a kind of fault handling method of oil field distribution network.
Fig. 2 shows the flow chart of the fault handling method of the oil field distribution network of the present invention.
Reference picture 2, the fault handling method of the oil field distribution network of embodiments of the invention is specifically included：
S1, when detecting the oil field distribution network and breaking down, search the position of trouble point；
S2, in the trouble point circuit of the oil field distribution network is disconnected, and judge the failure whether be it is non-permanent therefore
Barrier；In the present embodiment, permanent fault is the failure that can not recover automatically, and non-permanent failure is can within the default time
To recover normal failure automatically.
S3, it is that will be switched off recovering connection, and the oil pumper component batch initiation in the circuit that will be disconnected with main bus-bar.
The generator of oil pumping unit on S4, the circuit that otherwise will be disconnected with main bus-bar with the cut-off point recently starts,
To provide active power with the circuit that main bus-bar disconnects；
Fig. 3 shows the step S3 of the oil field distribution network fault handling method of present invention particular flow sheet.
In above process, step S3 is specifically included：
S31, calculating start the reactive power required for every group of oil pumping unit in the circuit disconnected with main bus-bar；
S32, the reactive power needed according to startup every group of oil pumping unit will set the oil pumper in the oil pumping unit of quantity
Disconnected with motor；
The oil pumping unit starting that oil pumper in S33, the circuit that will be disconnected with main bus-bar is normally connected with motor；
S34, when it is described oil pumping unit be normally connected with motor oil pumping unit normal work after, the oil pumper that will be switched off connects respectively
Enter to corresponding motor, and start and be linked into the oil field distribution network.
In above process, because the oil pumping unit that will be switched off needs substantial amounts of reactive power during line attachment,
Therefore the reactive power that each oil pumping unit needs is started by calculating, you can the oil pumper for unit that part is pumped as needed
Disconnect, now motor can send reactive power in a short time as generator, by part pump unit starting, then
It is that all oil pumpers can be achieved so as to not need external equipment to provide reactive power by remaining oil pumping unit starting
Start.
The oil field distribution network fault handling method of the present invention, provides idle using low capacity gas electricity generator for line end
Power is supported, and can be continuously adjusted, and line end voltage is brought up into any setting value；Small-capacity generator can also be
Active power and reactive power are provided for line end during circuit middle-end failure, line end is normally run；Circuit middle-end is fired
Gas generator after system power supply exits power supply, can bear the function of back-up source, circuit non-faulting is rectified normal operation,
Reduce fault outage scope, reduce fault outage loss.In addition, the present invention by judging failure, when failure be it is non-forever
During long property failure, in communication line, by the way of start in batches, by the way that part oil pumper and motor are disconnected, utilize
Motor provides reactive power, it is not necessary to which external equipment provides reactive power, so as to simplify failover process, improves failure
Remediation efficiency.
Above embodiment is only unrestricted to illustrate the specific implementation technical scheme of the present invention, although with reference to reality
The present invention is described in detail example, it will be understood by those of skill in the art that can be carried out to technical scheme
Modification or equivalent substitution, without departing from the spirit and scope of technical solution of the present invention, it all should cover the right in the present invention
Among claimed range.
Claims (8)
1. a kind of oil field distribution network fault handling method, comprises the following steps：
First, main bus-bar is set, and the oil field distribution network that some oil pumping units are constituted is connected in series to main bus-bar, unit of each pumping
Including generator, oil pumper and motor, the oil pumper of oil pumping group machine is connected by motor with main bus-bar, generator also with master
Bus is connected；
Secondly, during oil field distribution network normal work, the generator of the end oil pumping unit farthest apart from main bus-bar starts, and is end
Unit of pumping provides reactive power；The generator of oil pumping unit in addition to the oil pumper of end is in hot standby state；
Again, when detecting the oil field distribution network and breaking down, the position of trouble point is searched；
The circuit of oil field distribution network is disconnected in the trouble point, and judges whether the failure is non-permanent failure；
It is that will be switched off a recovery connection, and the oil pumper component batch initiation in the circuit that will be disconnected with main bus-bar；
Otherwise the generator of the oil pumping unit on the circuit that will be disconnected with main bus-bar with cut-off point recently starts, and is and and main bus-bar
The circuit of disconnection provides active power.
2. oil field distribution network fault handling method according to claim 1, it is characterised in that：The line that will be disconnected with main bus-bar
Oil pumper component batch initiation program in road is specifically included：
Calculate the reactive power required for every group of oil pumping unit in the circuit for starting and being disconnected with main bus-bar；
The reactive power needed according to every group of oil pumping unit disconnects the oil pumper set in the oil pumping unit of quantity with motor；
The oil pumping unit starting that oil pumper in the circuit that will be disconnected with main bus-bar is normally connected with motor；
After the oil pumping unit normal work that unit of pumping normally is connected with motor, the oil pumper that will be switched off is respectively connected to correspondence
Motor, and start be linked into oil field distribution network.
3. oil field distribution network fault handling method according to claim 1, it is characterised in that：The generator is sent out for combustion gas
Motor.
4. oil field distribution network fault handling method according to claim 1, it is characterised in that：In addition to end oil pumping unit
Each oil pumping unit generator power capacity be more than oil field distribution network all oil pumping units motor power hold
Measure sum.
5. oil field distribution network fault handling method according to claim 1, it is characterised in that：The end oil pumping unit
The power of generator is less than the power of the generator of each oil pumping unit in addition to unit is pumped in end.
6. oil field distribution network fault handling method according to claim 1, it is characterised in that：When generator provides idle work(
There is provided the magnitude of voltage continuously adjustabe that the generator of reactive power is exported during rate.
7. oil field distribution network fault handling method according to claim 1, it is characterised in that：The non-permanent failure is
The failure that can not recover automatically within the default time.
8. oil field distribution network fault handling method according to claim 1, it is characterised in that：The motor is asynchronous electricity
Motivation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710222901.9A CN107171295B (en) | 2017-04-07 | 2017-04-07 | A kind of oil field distribution network fault handling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710222901.9A CN107171295B (en) | 2017-04-07 | 2017-04-07 | A kind of oil field distribution network fault handling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107171295A true CN107171295A (en) | 2017-09-15 |
| CN107171295B CN107171295B (en) | 2019-10-25 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917005A (en) * | 2010-08-19 | 2010-12-15 | 中国海洋石油总公司 | Power grid interlink system of offshore oil platform |
| CN202522609U (en) * | 2012-02-10 | 2012-11-07 | 周彦 | Automatic monitoring system for work condition information of petroleum pumping unit |
| JP2013223424A (en) * | 2012-04-17 | 2013-10-28 | Siemens Ag | Fault protection system for power system of dynamically positioned vessel |
| CN104852383A (en) * | 2015-06-02 | 2015-08-19 | 中国海洋石油总公司 | Emergency control method for offshore oilfield cluster power grid |
| CN105207178A (en) * | 2015-09-11 | 2015-12-30 | 国家电网公司 | Distribution network fault location and islanding method based on DG access |
-
2017
- 2017-04-07 CN CN201710222901.9A patent/CN107171295B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917005A (en) * | 2010-08-19 | 2010-12-15 | 中国海洋石油总公司 | Power grid interlink system of offshore oil platform |
| CN202522609U (en) * | 2012-02-10 | 2012-11-07 | 周彦 | Automatic monitoring system for work condition information of petroleum pumping unit |
| JP2013223424A (en) * | 2012-04-17 | 2013-10-28 | Siemens Ag | Fault protection system for power system of dynamically positioned vessel |
| CN104852383A (en) * | 2015-06-02 | 2015-08-19 | 中国海洋石油总公司 | Emergency control method for offshore oilfield cluster power grid |
| CN105207178A (en) * | 2015-09-11 | 2015-12-30 | 国家电网公司 | Distribution network fault location and islanding method based on DG access |
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| Publication number | Publication date |
|---|---|
| CN107171295B (en) | 2019-10-25 |
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