CN207652051U - A kind of energy-storage system constituted based on ultracapacitor and accumulator - Google Patents
A kind of energy-storage system constituted based on ultracapacitor and accumulator Download PDFInfo
- Publication number
- CN207652051U CN207652051U CN201721904530.4U CN201721904530U CN207652051U CN 207652051 U CN207652051 U CN 207652051U CN 201721904530 U CN201721904530 U CN 201721904530U CN 207652051 U CN207652051 U CN 207652051U
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- CN
- China
- Prior art keywords
- energy
- bus
- rectifier
- inverter
- ultracapacitor
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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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Abstract
A kind of energy-storage system constituted based on ultracapacitor and accumulator, it is connected with AC network by rectifier in system, inverter is connected with rectifier, work drive motor is connected with inverter, DC bus between control unit and rectifier and inverter is connected, composite energy storage unit is connected with control unit, and the DC bus between braking resistor and rectifier and inverter is connected.It is bored by the use of the utility model, under effective recycling variable-frequency hoist motor and regenerating braking energy that when empty tourist bus decentralization generates, not only reduces drilling cost, have also achieved the effect of energy-saving and emission-reduction, efficiency is made further to get a promotion.
Description
Technical field
The utility model is related to petroleum drilling technology fields, more particularly to a kind of to be constituted based on ultracapacitor and accumulator
Energy-storage system.
Background technology
Drilling well industry is an operating mode complexity, the industry of high energy consumption, and drill string needs repeatedly during oil-well rig drilling well
It raises and decentralizes, needs engine to promote drill string wherein above putting forward process, and drill string can then discharge gravitional force in decentralization process, this
A little energy are consumed mainly by brake system.On the electric drive rig that some consider energy regenerating, the gravitational potential of drill string release
Motor can be made to enter power generation operation pattern, the regenerating braking energy of electrical energy form is had been converted into prime feedback.It is universal at present
The energy that only recycling decentralization drill string generates, and have ignored the energy that each tourist bus decentralization generates.
Invention content
In order to overcome the above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide one kind being based on ultracapacitor
The energy-storage system constituted with accumulator, can effectively promote well drilling hoist energy recovery efficiency, well drilling hoist is transferred drill string
And the energy regenerating of empty tourist bus gets up, and so that organic efficiency is further got a promotion, has reached 70% or more.
In order to achieve the above object, the technical solution adopted in the utility model is：
A kind of energy-storage system constituted based on ultracapacitor and accumulator, including AC network 1, AC network 1 and use
It is connected in the rectifier 2 for exporting constant direct current, rectifier 2 is connected by DC bus 3 with 4 one end of inverter, inverter 4
The other end drives the work drive motor 5 of petroleum drilling machine winch to be connected with by alternating voltage, between rectifier 2 and inverter 4
Be connected with the control unit 7 of the charge and discharge for controlling composite energy storage unit 6 on DC bus 3, rectifier 2 and inverter 4 it
Between DC bus 3 on be also associated with for consume composite energy storage unit 6 be saturated after energy braking resistor 8.
The composite energy storage unit 6 is made of ultracapacitor and accumulator.
When transferring drill string, work drive motor 5 generates electricity, when feedback braking energy is increased to the threshold value of brake unit, braking electricity
Resistance forces busbar voltage when dropping to threshold value or less, and when voltage rises to the voltage setting value of control unit 7, and switch is opened, and is stored
Battery starts to charge up, and after accumulator, which charges, to be saturated, ultracapacitor group starts to charge up, when ultracapacitor is saturated in charging
Afterwards, stop charging, enable braking resistor 8, consume dump energy.
When above being carried to empty tourist bus, 3 voltage of DC bus declines, and control unit 7 controls electric power storage in composite energy storage unit 6
Tank discharge provides energy.
When raising drill string, motor is in driving condition, and 3 voltage of DC bus drops to the voltage setting of control unit 7
When value, switch is opened, and ultracapacitor lives to discharge into DC bus 3 and comes maintenance voltage stabilization, as energy is reduced, super capacitor
Device group both end voltage can also decline, and after DC bus 3 decreases below rectified voltage always, power grid gradually provides voltage.
When being transferred to empty tourist bus, 3 voltage of DC bus increases, and control unit 7 controls to be stored in composite energy storage unit 6
Battery charges.
When control unit 7 breaks down, energy-storage system is cut off, from power grid to winch motor homework of supplying power, the system of feedback
Energy is all shed by braking resistor conversion thermal energy consumption.
The utility model has the beneficial effects that：
By the use of the utility model, the regenerative braking energy that petroleum drilling winch decentralization drill string generates fully has been recycled
Amount especially stores and is used for above carrying for empty tourist bus to the energy regenerating of the decentralization of each empty tourist bus, not only reduces direct current
The fluctuation of pressure, and organic efficiency is made further to get a promotion.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model.
Specific implementation mode
Narration in detail is made to the structural principle of the utility model and operation principle below in conjunction with the accompanying drawings.
As shown in Figure 1：Rectifier 2 is connected with well site power grid, for exporting constant direct current, inverter 4 and rectifier 2
It is connected, by the alternating voltage that DC voltage becomes frequency and voltage can control, for driving the motor of petroleum drilling machine winch.
It will connect, be parallel between rectifier 2 and inverter 4 for the composite energy storage unit 6 and control unit 7 that store energy
On DC bus 3, control unit 7 is used to control the charge and discharge of ultracapacitor group, carries out bi-directional voltage stabilizing output, braking resistor 8
Also it is parallel on the DC bus 3 between rectifier 2 and inverter 4, for consuming remaining energy after ultracapacitor group is saturated
Amount.
The operation principle of the utility model includes the following steps；
When transferring drill string, the reversion of work drive motor 5 produces electricl energy, and the electric energy of generation is stored and feeds back to DC bus again
On 3,3 voltage of DC bus is caused to rise, control unit controls accumulator in composite energy storage unit 6 and charges, when accumulator charges
It after saturation, then charges to ultracapacitor in composite energy storage unit 6, when ultracapacitor group, which charges, to be saturated, enables braking electricity
If 8 consumption dump energy of resistance starts braking resistor 8 and consumes energy when 3 voltage of DC bus is higher than maximum voltage threshold；
Decentralization finishing drilling column all can above carry empty tourist bus every time, and boring winch is in driving condition, DC bus-bar voltage 3
Decline, control unit 7 controls accumulator in composite energy storage unit 6 and provides energy to it；
When promoting drill string, boring winch is in driving condition, i.e., from 3 draw power of DC bus when, cause direct current female
Line voltage declines, and control unit 7 controls composite energy storage unit 6 and discharges together, when the energy put makes DC bus 3 be less than rectified current
Petroleum drilling machine winch starts the offer voltage of AC network 1 after pressure；
Empty tourist bus can all be transferred after promoting finishing drilling column every time, cause 3 voltage of DC bus to rise, control unit 7
Accumulator charges in control composite energy storage unit 6.
Claims (2)
1. a kind of energy-storage system constituted based on ultracapacitor and accumulator, which is characterized in that including AC network (1), hand over
Galvanic electricity net (1) is connected with the rectifier (2) for exporting constant direct current, and rectifier (2) passes through DC bus (3) and inversion
Device (4) one end is connected, inverter (4) other end and work drive motor (5) phase that petroleum drilling machine winch is driven by alternating voltage
Even, the charge and discharge for controlling composite energy storage unit (6) is connected on the DC bus (3) between rectifier (2) and inverter (4)
The control unit (7) of electricity is also associated with for consuming compound storage on the DC bus (3) between rectifier (2) and inverter (4)
The braking resistor (8) of energy after energy unit (6) is saturated.
2. a kind of energy-storage system constituted based on ultracapacitor and accumulator according to claim 1, which is characterized in that
The composite energy storage unit (6) is made of ultracapacitor and accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721904530.4U CN207652051U (en) | 2017-12-29 | 2017-12-29 | A kind of energy-storage system constituted based on ultracapacitor and accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721904530.4U CN207652051U (en) | 2017-12-29 | 2017-12-29 | A kind of energy-storage system constituted based on ultracapacitor and accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207652051U true CN207652051U (en) | 2018-07-24 |
Family
ID=62876092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721904530.4U Expired - Fee Related CN207652051U (en) | 2017-12-29 | 2017-12-29 | A kind of energy-storage system constituted based on ultracapacitor and accumulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207652051U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947212A (en) * | 2017-12-29 | 2018-04-20 | 西安石油大学 | A kind of energy-storage system and recovery method formed based on ultracapacitor and storage battery |
| CN117458551A (en) * | 2023-12-21 | 2024-01-26 | 四川宏华电气有限责任公司 | Energy management system suitable for petroleum drilling machine and control method thereof |
| 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 |
-
2017
- 2017-12-29 CN CN201721904530.4U patent/CN207652051U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947212A (en) * | 2017-12-29 | 2018-04-20 | 西安石油大学 | A kind of energy-storage system and recovery method formed based on ultracapacitor and storage battery |
| 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 |
| CN117458551A (en) * | 2023-12-21 | 2024-01-26 | 四川宏华电气有限责任公司 | Energy management system suitable for petroleum drilling machine and control method thereof |
| CN117458551B (en) * | 2023-12-21 | 2024-03-19 | 四川宏华电气有限责任公司 | Energy management system suitable for petroleum drilling machine and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180724 Termination date: 20191229 |