CN202732237U - Vapor-liquid two-phase energy storage power compensation system for wind power plant - Google Patents
Vapor-liquid two-phase energy storage power compensation system for wind power plant Download PDFInfo
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- CN202732237U CN202732237U CN 201220455637 CN201220455637U CN202732237U CN 202732237 U CN202732237 U CN 202732237U CN 201220455637 CN201220455637 CN 201220455637 CN 201220455637 U CN201220455637 U CN 201220455637U CN 202732237 U CN202732237 U CN 202732237U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The utility model relates to the field of power systems, and particularly relates to a vapor-liquid two-phase energy storage power compensation system for a wind power plant. The system comprises a power detection adjusting device, a vapor-liquid phase change energy storage device, and a vapor-liquid two-phase power generation device, wherein the power detection adjusting device is connected with the vapor-liquid phase change energy storage device and the vapor-liquid two-phase power generation device; and the vapor-liquid phase change energy storage device and the vapor-liquid two-phase power generation device form a circulation loop. The vapor-liquid two-phase energy storage power compensation system can control the generating capacity of a power generation set by regulating the opening of an expander inlet valve, can convert wind energy to thermal energy, mechanical energy and electric energy, and is controllable in output power. The system can be used for generating electric energy and compensating for power storage of the power grid after scale; and the overall system is safe and environment-friendly in operation, and can obviate the negative influences of the current energy storage technology to the ecological environment.
Description
Technical field
The utility model relates to field of power, particularly a kind of wind energy turbine set vapour-liquid two-phase energy storage power compensating system.
Background technique
Along with the continuous expansion of wind energy turbine set scale, the wind-powered electricity generation characteristic is also further remarkable to the negative effect of electrical network.The suitable stored energy capacitance of wind energy turbine set configuration can effectively be contained the output-power fluctuation that causes because of the continuous variation of wind speed.Popular energy storage technology such as batteries to store energy technology, super capacitor energy-storage technology, flywheel energy storage technology etc., has all been obtained certain achievement in research at present.Yet the working life that they have is short, energy density is low, perhaps anti-glitch ability, and some costs are too high, all do not used on a large scale.
Thermal expansion machine generation technology has just obtained practice as far back as 20 beginnings of the century, and this prime mover is simple and compact for structure, and working medium is applied widely, and internal efficiency generally is higher than the steam turbine with power.In recent years, domestic many enterprises utilize the decompressor generation technology to reclaim the low-quality waste heat of industrial waste gas, have reached the purpose of energy-saving and emission-reduction, and this system can be for the production of electric energy and compensation network power shortage.。Decompressor power generation system generating total amount under this method of operation is little; if install a cover automatic controller additional; change the generator set generated energy by regulating decompressor steam inlet valve aperture; so that the output power of whole system is controlled; so, this system after the scale can be for the production of electric energy and compensation network power shortage.
The model utility content
The purpose of this utility model is a kind of wind energy turbine set vapour-liquid two-phase energy storage power compensating system of design, by installing a cover automatic controller additional, exert oneself according to wind power generating set and to regulate decompressor steam inlet valve aperture and change generator set generating component: when wind-force was powerful, it is superfluous meritorious that this system absorbs wind-powered electricity generation unit; When wind-force was not enough or calm, this system was to the meritorious vacancy of electrical network transmission of electric energy compensation so that the output power of whole system is controlled.This system can balance wind-powered electricity generation unit output power, and the unstable output of decrease wind power generating set impacts electrical network, solves the disturbance of being incorporated into the power networks system is caused in the large-scale wind power field.
For achieving the above object, the utility model provides a kind of wind energy turbine set vapour-liquid two-phase energy storing and electricity generating power compensating system, comprises power detection controlling device, liquid-gas phase transition energy storage device and vapour-liquid two-phase electricity generating device.Wherein, the power detection controlling device connects liquid-gas phase transition energy storage device and vapour-liquid two-phase electricity generating device, and liquid-gas phase transition energy storage device and vapour-liquid two-phase electricity generating device consist of circulation loop.
Preferably, the power detection controlling device comprises detector and regulator.Wherein, detector connects wind power generating set; Regulator connection detector, liquid-gas phase transition energy storage device and vapour-liquid two-phase electricity generating device.
Preferably, the liquid-gas phase transition energy storage device comprises electrical heaters, vaporizer and load governor.Wherein, load governor connects power detection controlling device and wind power generating set; Load governor, electrical heaters and vaporizer are linked in sequence successively; Vaporizer and vapour-liquid two-phase electricity generating device consist of circulation loop.
Preferably, vapour-liquid two-phase electricity generating device comprises expansion control valve, decompressor, generator, condenser and working medium pump.Wherein, expansion control valve connection adjustor; Expansion control valve, decompressor, condenser, working medium pump and vaporizer connect and compose circulation loop successively; Decompressor, generator and external transformer are linked in sequence successively.
Preferably, comprise heating agent working medium in the vaporizer; Described heating agent working medium comprises water, artificial oil, butane.
Preferably, the decompressor type comprises turbo-expander, screw expander, piston expansion engine.
Preferably, generator type comprises synchronous generator, induction generator.
Wind energy turbine set vapour-liquid two-phase energy storage power compensating system of the present utility model comprises the combination in any that above-mentioned various features consists of.
In described power detection controlling device, detector belongs to secondary device, and its function is to gather the output power signal of wind generating unit and import signal into regulator; Regulator is commanded the relevant expansion control valve action of control according to input signal and the deviation of the generated output of presetting.When wind-force was powerful, wind generating unit was exerted oneself and is exerted oneself greater than setting, and surplus is exerted oneself and can flow into the liquid-gas phase transition energy-storage units under the effect of the load governor of liquid-gas phase transition energy storage device.When wind-force was not enough or calm, wind generating unit was exerted oneself and is exerted oneself less than setting, and the power detection controlling device is then controlled vapour-liquid two-phase electricity generating device will can be converted into mechanical energy in its working medium, drove its generator generating to the electrical network transmission of electric energy, the meritorious vacancy of compensation.
In described liquid-gas phase transition energy storage device, when wind-force was powerful, load governor was opened; It is meritorious that electrical heaters absorbs the surplus of wind power generating set, is energy in the heating agent working medium with this part electric energy conversion in vaporizer.Can be stored in the liquid-gas phase transition energy storage device for subsequent use in the working medium.When wind-force is not enough or calm, load governor no-load running, wind power generating set stops to liquid-gas phase transition energy storage device transmission of electric energy.
In described vapour-liquid two-phase electricity generating device, when wind-force was powerful, the expansion control valve was closed, and the liquid-gas phase transition energy storage device is not carried heating agent working medium to decompressor.When wind-force is not enough or calm, the expansion control valve is opened, heating agent working medium in the liquid-gas phase transition energy storage device enters decompressor by the expansion control valve, in decompressor, do work, expansion machine rotor will can be converted into mechanical energy in the heating agent working medium, this mechanical energy drives coupled generator generating, makes generator to outside transmission of electric energy; Selected heating agent working medium that and if only if can drain into working medium in the condenser when being high-temperature steam simultaneously.Condenser liquefies the working medium through condensation again, is transmitted back in the vaporizer by coupled working medium pump.Vaporizer, expansion control valve, decompressor, condenser and working medium pump consist of the circulation loop of sealing, in order to allow the heating agent working medium in the device can be recycling.
Wind energy turbine set vapour-liquid two-phase energy storage power compensating system of the present utility model has been introduced liquid-gas phase transition energy storage and decompressor generation technology, this technology can realize that wind energy is to the conversion of heat energy, mechanical energy, electric energy, whole process safety environmental protection has solved existing energy storage technology brings negative effect to ecotope problem.
Description of drawings
Fig. 1 is the schematic diagram of the preferred embodiment of wind energy turbine set vapour-liquid two-phase energy storage power compensating system of the present utility model.
Wherein, 1. detector, 2. regulator, 3. load governor, 4. electrical heaters, 5. vaporizer, 6. expansion control valve, 7. decompressor, 8. generator, 9. condenser, 10. working medium pump, 11. wind power generating set, 12. external transformers.
Embodiment
With reference to shown in Figure 1, wind energy turbine set vapour-liquid two-phase energy storage power compensating system comprises power detection controlling device, liquid-gas phase transition energy storage device and vapour-liquid two-phase electricity generating device.The power detection controlling device connects liquid-gas phase transition energy storage device and vapour-liquid two-phase electricity generating device, and liquid-gas phase transition energy storage device and vapour-liquid two-phase electricity generating device consist of circulation loop.The power detection controlling device comprises detector 1 and regulator 2.The liquid-gas phase transition energy storage device comprises electrical heaters 4, vaporizer 5 and load governor 3, comprises heating agent working medium in the vaporizer 5.Vapour-liquid two-phase electricity generating device comprises expansion control valve 6, decompressor 7, generator 8, condenser 9 and working medium pump 10.Condenser 9 adopts air-cooler.
The annexation of wind energy turbine set vapour-liquid two-phase energy storage power compensating system is as follows: detector 1 is connected with load governor and is connected wind power generating set 11; Regulator 2 connection detectors 1, load governor 3 and expansion control valve 6; Load governor 3, electrical heaters 4 and vaporizer 5 are linked in sequence successively; Vaporizer 5, expansion control valve 6, decompressor 7, condenser 9 and working medium pump 10 connect and compose circulation loop in order; Decompressor 7, generator 8 and external transformer 12 are linked in sequence successively.
The above only makes preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment does.
Claims (10)
1. wind energy turbine set vapour-liquid two-phase energy storage power compensating system, comprise power detection controlling device, liquid-gas phase transition energy storage device and vapour-liquid two-phase electricity generating device, it is characterized in that: the power detection controlling device connects liquid-gas phase transition energy storage device and vapour-liquid two-phase electricity generating device, and liquid-gas phase transition energy storage device and vapour-liquid two-phase electricity generating device consist of circulation loop.
2. wind energy turbine set vapour-liquid two-phase energy storage power compensating system as claimed in claim 1, it is characterized in that: the power detection controlling device comprises detector (1) and regulator (2); Regulator (2) connection detector (1), liquid-gas phase transition energy storage device and vapour-liquid two-phase electricity generating device; Detector (1) connects wind power generating set (11).
3. wind energy turbine set vapour-liquid two-phase energy storage power compensating system as claimed in claim 1, it is characterized in that: the liquid-gas phase transition energy storage device comprises electrical heaters (4), vaporizer (5) and load governor (3); Load governor (3) connects power detection controlling device and wind power generating set (11); Load governor (3), electrical heaters (4) and vaporizer (5) are linked in sequence successively; Vaporizer (5) and vapour-liquid two-phase electricity generating device consist of circulation loop.
4. wind energy turbine set vapour-liquid two-phase energy storage power compensating system as claimed in claim 2, it is characterized in that: the liquid-gas phase transition energy storage device comprises electrical heaters (4), vaporizer (5) and load governor (3); Load governor (3) connection adjustor (2) and wind power generating set (11); Load governor (3), electrical heaters (4) and vaporizer (5) are linked in sequence successively; Vaporizer (5) and vapour-liquid two-phase electricity generating device consist of circulation loop.
5. wind energy turbine set vapour-liquid two-phase energy storage power compensating system as claimed in claim 1, it is characterized in that: vapour-liquid two-phase electricity generating device comprises expansion control valve (6), decompressor (7), generator (8), condenser (9) and working medium pump (10); Expansion control valve (6) connects the power detection controlling device; Expansion control valve (6), decompressor (7), condenser (9), working medium pump (10) and liquid-gas phase transition energy storage device connect and compose circulation loop successively; Decompressor (7), generator (8) and external transformer (12) are linked in sequence successively.
6. wind energy turbine set vapour-liquid two-phase energy storage power compensating system as claimed in claim 2, it is characterized in that: vapour-liquid two-phase electricity generating device comprises expansion control valve (6), decompressor (7), generator (8), condenser (9) and working medium pump (10); Expansion control valve (6) connection adjustor (2); Expansion control valve (6), decompressor (7), condenser (9), working medium pump (10) and liquid-gas phase transition energy storage device connect and compose circulation loop successively; Decompressor (7), generator (8) and external transformer (12) are linked in sequence successively.
7. wind energy turbine set vapour-liquid two-phase energy storage power compensating system as claimed in claim 3, it is characterized in that: vapour-liquid two-phase electricity generating device comprises expansion control valve (6), decompressor (7), generator (8), condenser (9) and working medium pump (10); Expansion control valve (6) connects the power detection controlling device; Expansion control valve (6), decompressor (7), condenser (9), working medium pump (10) and vaporizer (5) connect and compose circulation loop successively; Decompressor (7), generator (8) and external transformer (12) are linked in sequence successively.
8. wind energy turbine set vapour-liquid two-phase energy storage power compensating system as claimed in claim 4, it is characterized in that: vapour-liquid two-phase electricity generating device comprises expansion control valve (6), decompressor (7), generator (8), condenser (9) and working medium pump (10); Expansion control valve (6) connection adjustor (2); Expansion control valve (6), decompressor (7), condenser (9), working medium pump (10) and vaporizer (5) connect and compose circulation loop successively; Decompressor (7), generator (8) and external transformer (12) are linked in sequence successively.
9. such as claim 3 or 4 or 7 described wind energy turbine set vapour-liquid two-phase energy storage power compensating systems, it is characterized in that: vaporizer comprises heating agent working medium in (5); Described heating agent working medium comprises water, artificial oil, butane.
10. such as each described wind energy turbine set vapour-liquid two-phase energy storage power compensating system among the claim 5-8, it is characterized in that: decompressor (7) type comprises turbo-expander, screw expander.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201220455637 CN202732237U (en) | 2012-09-07 | 2012-09-07 | Vapor-liquid two-phase energy storage power compensation system for wind power plant |
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| CN 201220455637 CN202732237U (en) | 2012-09-07 | 2012-09-07 | Vapor-liquid two-phase energy storage power compensation system for wind power plant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606941A (en) * | 2013-11-25 | 2014-02-26 | 重庆大学 | Gas-liquid two-phase energy-storing power distribution device |
| CN103670942A (en) * | 2012-09-07 | 2014-03-26 | 重庆大学 | Gas-liquid two-phase energy storage and power compensation system of wind power plant |
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2012
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670942A (en) * | 2012-09-07 | 2014-03-26 | 重庆大学 | Gas-liquid two-phase energy storage and power compensation system of wind power plant |
| CN103606941A (en) * | 2013-11-25 | 2014-02-26 | 重庆大学 | Gas-liquid two-phase energy-storing power distribution device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20150907 |
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