CN207732446U - A kind of polynary energy storage peak shaving frequency modulation system based on hydroenergy storage station and power station - Google Patents
A kind of polynary energy storage peak shaving frequency modulation system based on hydroenergy storage station and power station Download PDFInfo
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- CN207732446U CN207732446U CN201820124523.0U CN201820124523U CN207732446U CN 207732446 U CN207732446 U CN 207732446U CN 201820124523 U CN201820124523 U CN 201820124523U CN 207732446 U CN207732446 U CN 207732446U
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Abstract
The polynary energy storage peak shaving frequency modulation system based on hydroenergy storage station and power station that the utility model discloses a kind of, including hydroelectric generation module, hydroelectric generation module is connect with the input terminal of main transformer, transformer three and alternating-current switch device respectively by conducting wire, the output end of main transformer is connect with power grid, transformer three is connected with flywheel energy storage group module, alternating-current switch device is connected with transformer four, transformer four is connected with battery energy storage group module, and hydroelectric generation module, flywheel energy storage group module and battery energy storage group module are coordinated control centre with peak-frequency regulation and connect；The utility model is designed reasonably, improve hydroenergy storage station or power station grid power and frequency transient follow-up capability, increase substantially pump-storage generator and Hydropower Unit peak-frequency regulation flexibility, it reduces it and abandons water rate, hydroenergy storage station is drawn water pump energy consumption when reducing underload, while improving safety and the economy of unit operation.
Description
Technical field
The utility model is related to Hydropower Unit peak load regulation network frequency modulation technology fields, it particularly relates to which a kind of be based on drawing water
The polynary energy storage peak shaving frequency modulation system of storage station and power station.
Background technology
In recent years, China year electricity consumption increasing option, but peak-valley difference widens year by year.With quickly pushing away for intelligent grid
Into the cooperative scheduling management intensity of all types of power supplys also improves therewith, and due to factors such as new energy fluctuations, various regions are abandoned wind, abandoned
Optical issue is serious, and the consumption of new energy electric power becomes power industry urgent problem to be solved.China's water power in 2016（Including drawing water
Accumulation of energy）Capacity of installed generator accounts for total capacity of installed generator 20.18%, and water power is as cleaning energy that is the most high-quality at this stage, stablizing
Source plays the effect that can not be substituted assisting power grid during dissolving the intermittent energy sources such as wind energy, photovoltaic energy on a large scale.It fills
Divide the peak-frequency regulation ability excavated and combine existing Hydropower Unit, to reinforcing power grid security, support promotion new energy development has weight
Want meaning.
《North China region generates electricity by way of merging two or more grid systems factory's ancillary service management implementation detailed rules and regulations》In point out, the basic peak regulation standard of Hydropower Unit
The 100% of its rated capacity should be reached.When power station executes the tasks such as peak load regulation network, frequency modulation, generating flow, which suddenly rises, suddenly to be fallen, and is easy
The fluctuation for causing downstream river course section flow and water level influences diversion irrigation, shipping and ecological environment.For steady or elimination water power
It stands peak regulation non-stationary flow, by the composite energy storages system such as flywheel energy storage, battery energy storage polynary coupled tank in parallel with Hydropower Unit
System, fast response time, accurate, the two-way regulating power etc. of control can be improved unit depth peak modulation capacity and mains frequency with
With ability, while the frequency modulation function having, existing unit operation pattern can be matched, slows down power station peak regulation water-level fluctuation to ring
The influence in border can reduce hydroenergy storage station pump energy consumption, can synchronize the operation peace for improving grid stability and Hydropower Unit
Entirely and economy, it is a kind of preferable solution of the reply containing extensive regenerative resource network system peak-frequency regulation demand.
Therefore, a kind of polynary energy storage peak shaving frequency modulation system based on hydroenergy storage station and power station is designed, water is become
Motor group flexibly participates in the important way of peak load regulation network frequency modulation.
Utility model content
For above-mentioned technical problem in the related technology, the utility model proposes one kind being based on hydroenergy storage station and water power
The polynary energy storage peak shaving frequency modulation system stood, can overcome the above-mentioned deficiency of the prior art.
To realize the above-mentioned technical purpose, the technical solution of the utility model is realized in：
A kind of polynary energy storage peak shaving frequency modulation system based on hydroenergy storage station and power station, including hydroelectric generation module,
The hydroelectric generation module is connect with the input terminal of main transformer, transformer three and alternating-current switch device respectively by conducting wire, institute
The output end for stating main transformer is connect with power grid, and the transformer three is connected with flywheel energy storage group module, the alternating-current switch dress
It sets and is connected with transformer four, the transformer four is connected with battery energy storage group module, the hydroelectric generation module, flywheel energy storage group
Module and battery energy storage group module are coordinated control centre with peak-frequency regulation and are connect.
Further, the hydroelectric generation module includes the transformer that power station is connected with the output end in the power station
Two.
Further, the hydroelectric generation module includes hydroenergy storage station and connects with the hydroenergy storage station output end
The transformer one connect.
Further, the power station includes the hydraulic turbine, and one end of the hydraulic turbine is connect with waterwork and equipment, institute
The other end and generator of the hydraulic turbine are stated, the generator is connect with the transformer two.
Further, the hydroenergy storage station includes pump turbine, the pump turbine respectively with upper storage reservoir, under
Reservoir is connected with dynamotor, and the dynamotor is connect with the transformer one.
Further, the flywheel energy storage group module includes flywheel, and the flywheel is connected by permanent-magnet brushless DC electric machine
There are concatenated PWM converter one and PWM converter two, the input terminal of the PWM converter two to be connect with transformer three.
Further, the battery energy storage group module includes battery, and the battery passes through DC switchgear and PCS energy storage
Current transformer connects, and the input terminal of the PCS energy accumulation current converters is connect with transformer four.
Further, the pump turbine selects Francis turbine, inclined flow turbine, the Tubular Pump hydraulic turbine
In one kind.
Further, the Selection of Battery lead-acid battery, nickel-cadmium cell, lithium ion battery, sodium-sulphur battery, all-vanadium flow electricity
One kind in pond.
The beneficial effects of the utility model：The utility model is designed reasonably is based on power station or hydroenergy storage station, successively
Peak-frequency regulation is carried out using flywheel energy storage group module, a variety of energy storage technologies of battery energy storage group module and hydroelectric generation module power grid,
Improve hydroenergy storage station or power station grid power and frequency transient follow-up capability, increase substantially pump-storage generator and
Hydropower Unit peak-frequency regulation flexibility reduces it and abandons water rate, and hydroenergy storage station is drawn water pump energy consumption when reducing underload, simultaneously
Improve safety and the economy of unit operation.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is a kind of polynary energy storage based on hydroenergy storage station and power station according to the utility model embodiment
The principle schematic of peak-frequency regulation system；
Fig. 2 is a kind of polynary energy storage based on hydroenergy storage station and power station according to the utility model embodiment
The principle schematic of the hydroenergy storage station of peak-frequency regulation system.
In figure：
1, upper storage reservoir；2, lower storage reservoir；3, pump turbine；4, dynamotor；5, transformer one；6, water-storage electricity
It stands；7, power station；8, waterwork and equipment；9, the hydraulic turbine；10, generator；11, transformer two；12, flywheel；13, permanent magnetism without
Brushless motor；14, PWM converter one；15, PWM converter two；16, transformer three；17, alternating-current switch device；18, transformation
Device four；19, PCS energy accumulation current converters；20, DC switchgear；21, battery；22, battery energy storage group module；23, flywheel energy storage group
Module；24, peak-frequency regulation coordinates control centre；25, main transformer；26, power grid.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, the every other embodiment that those of ordinary skill in the art are obtained all belongs to
In the range of the utility model protection.
As shown in Figure 1, a kind of more based on hydroenergy storage station and power station according to the utility model embodiment
First energy storage peak shaving frequency modulation system, including hydroelectric generation module, the hydroelectric generation module by conducting wire respectively with main transformer 25
Input terminal, transformer 3 16 and alternating-current switch device 17 connect, the output end of the main transformer 25 is connect with power grid 26, institute
It states transformer 3 16 and is connected with flywheel energy storage group module 23, the alternating-current switch device 17 is connected with transformer 4 18, the change
Depressor 4 18 is connected with battery energy storage group module 22, the hydroelectric generation module, flywheel energy storage group module 23 and battery energy storage group
Module 22 is coordinated control centre 24 with peak-frequency regulation and is connect.
The hydroelectric generation module includes the transformer 2 11 that power station 7 is connected with the output end in the power station 7.
The hydroelectric generation module includes hydroenergy storage station 6 and the change that is connect with 6 output end of the hydroenergy storage station
Depressor 1.
The power station 7 includes the hydraulic turbine 9, and one end of the hydraulic turbine 9 is connect with waterwork and equipment 8, the water
The other end of turbine 9 and generator 10, the generator 10 are connect with the transformer 2 11.
The hydroenergy storage station 6 include pump turbine 3, the pump turbine 3 respectively with upper storage reservoir 1, lower storage reservoir 2
It is connected with dynamotor 4, the dynamotor 4 is connect with the transformer 1.
The flywheel energy storage group module 23 includes flywheel 12, and the flywheel 12 is connected with by permanent-magnet brushless DC electric machine 13
The input terminal of concatenated PWM converter 1 and PWM converter 2 15, the PWM converter 2 15 is connect with transformer 3 16.
The battery energy storage group module 22 includes battery 21, and the battery 21 passes through DC switchgear 20 and PCS energy storage
Current transformer 19 connects, and the input terminal of the PCS energy accumulation current converters 19 is connect with transformer 4 18.
The pump turbine 3 selects one in Francis turbine, inclined flow turbine, the Tubular Pump hydraulic turbine
Kind.
The battery 21 is selected in lead-acid battery, nickel-cadmium cell, lithium ion battery, sodium-sulphur battery, all-vanadium flow battery
It is a kind of.
In order to facilitate the above-mentioned technical proposal of the utility model is understood, below by way of new to this practicality in specifically used mode
The above-mentioned technical proposal of type is described in detail.
When specifically used, it is following control system that peak-frequency regulation described in the utility model, which coordinates control centre 24,
Task is so that the electricity volume of hydroelectric generation module is followed power grid in the case where power grid 26 needs peaking operation
The variation of 26 demand electricity, control hydroelectric generation module, flywheel energy storage group module 23 and the collaboration of battery energy storage group module 22 are completed
Peak regulation task.
The utility model when power grid 26 is in power load low ebb, power station 7 it is multiple out electric energy pass through successively
Main transformer 25, transformer 3 16, PWM converter 1 and PWM converter 2 15 drive 13 work of brushless, permanently excited direct current motor
Make, brushless, permanently excited direct current motor 13 drives flywheel 12 to rotate, and electric energy is converted into mechanical energy storage in flywheel energy storage group module 23；
After flywheel energy storage group module 23 is fully charged, it is closed alternating-current switch device 17 and DC switchgear 20, remaining part electric energy
Through transformer 4 18 and energy accumulation current converter 19, it is stored in battery 21.
For the utility model when power grid 26 is in power load peak, flywheel 12 drives brushless, permanently excited direct current motor first
13 rotation power generations, the mechanical energy stored in flywheel energy storage group module 23 are changed into electric energy, electric energy successively through PWM converter 2 15,
PWM converter 1, transformer 3 16 and main transformer 25 are transported to power grid 26；Secondly alternating-current switch device 17 and direct current are closed
Switching device 20, battery 21 discharge, and electric energy passes through PCS energy accumulation current converters 19, transformer 4 18 and main transformer 25 and conveys successively
To power grid 26；Remaining peak regulation task is finally undertaken by power station 7, water drives the hydraulic turbine 9, water by waterwork and equipment 8
Turbine 9 drives generator rotation power generation, electric energy to be transported to power grid 26 by transformer 2 11 and main transformer 25.
Power station 7 described in the utility model can be replaced by hydroenergy storage station 6, negative in electricity consumption when power grid 26 after replacement
When lotus low ebb, rich electric energy passes through main transformer 25, transformer 3 16, PWM converter 1 and PWM converter two successively
15, driving brushless, permanently excited direct current motor 13 works, and brushless, permanently excited direct current motor 13 drives flywheel 12 to rotate, and electric energy is converted into
Mechanical energy storage is in flywheel energy storage group module 23；After flywheel energy storage group module 23 is fully charged, it is closed 17 He of alternating-current switch device
DC switchgear 20, remaining part electric energy are stored in through transformer 4 18 and PCS energy accumulation current converters 19 in battery 21；It is surplus
Under whole electric energy by transformer 1 drive dynamotor work, dynamotor 4 serves as motor, electronic hair at this time
Motor 4 drives pump turbine 3 to rotate, and pump turbine 3 serves as water pump at this time, and the water of lower storage reservoir 2 is extracted into upper storage reservoir 1, electricity
The potential energy storage of water can be converted into.
For the utility model when power grid is in power load peak, flywheel 12 drives brushless, permanently excited direct current motor 13 first
Rotation generates electricity, and the mechanical energy stored in flywheel energy storage group module 23 is changed into electric energy, and electric energy is successively through PWM converter 2 15, PWM
Current transformer 1, transformer 3 16 and main transformer 15 are transported to power grid 16；Secondly it is closed alternating-current switch device 17 and direct current is opened
Device 20 is closed, battery 21 discharges, and electric energy is transported to by PCS energy accumulation current converters 19, transformer 4 18 and main transformer 25 successively
Power grid 26；The water of last upper storage reservoir 1 passes through pump turbine 3, and pump turbine 3 serves as the hydraulic turbine at this time, drives dynamoelectric and power generation
Machine 4 generates electricity, and dynamotor 4 serves as generator at this time, and the potential energy of water is electric energy, and electric energy passes through 2 11 He of transformer successively
Main transformer 25 is transported to power grid 26.
Pump turbine 3 described in the utility model.Mixed-flow, diagonal flow type and the pump turbines such as tubular can be selected.
Battery 21 described in the utility model can select lead-acid battery, nickel-cadmium cell, lithium ion battery, sodium-sulphur battery or
All-vanadium flow battery.
Flywheel energy storage group module 23 and 22 charge and discharge of battery energy storage group module described in the utility model be all it is two-way,
It can peak load shifting；But wherein flywheel energy storage group module 23 has superpower ultrafast charging and discharging capabilities, and service life is long；This is
Battery energy storage group module 22 and flywheel energy storage module 23 come from different backgrounds and possess different abilities coupled tank combined system in system；Peak-frequency regulation coordinates control
Center controls the coordinated operation between hydroelectric generation module, flywheel energy storage group module 22 and polynary coupled tank combined system.
In conclusion the utility model is designed reasonably, is based on power station or hydroenergy storage station, flywheel energy storage is utilized successively
Group module, a variety of energy storage technologies of battery energy storage group module and hydroelectric generation module power grid carry out peak-frequency regulation, improve the storage that draws water
Energy power station or power station grid power and frequency transient follow-up capability, increase substantially pump-storage generator and Hydropower Unit peak regulation
Frequency modulation flexibility reduces it and abandons water rate, and hydroenergy storage station is drawn water pump energy consumption when reducing underload, while improving unit operation
Safety and economy.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (9)
1. a kind of polynary energy storage peak shaving frequency modulation system based on hydroenergy storage station and power station, which is characterized in that including waterpower
Electricity generation module, the hydroelectric generation module by conducting wire respectively with main transformer（25）Input terminal, transformer three（16）And friendship
Flow switching device（17）Connection, the main transformer（25）Output end and power grid（26）Connection, the transformer three（16）Even
It is connected to flywheel energy storage group module（23）, the alternating-current switch device（17）It is connected with transformer four（18）, the transformer four
（18）It is connected with battery energy storage group module（22）, the hydroelectric generation module, flywheel energy storage group module（23）With battery energy storage group
Module（22）Coordinate control centre with peak-frequency regulation（24）Connection.
2. a kind of polynary energy storage peak shaving frequency modulation system based on hydroenergy storage station and power station according to claim 1,
It is characterized in that, the hydroelectric generation module includes power station（7）With the power station（7）Output end connection transformer two
（11）.
3. a kind of polynary energy storage peak shaving frequency modulation system based on hydroenergy storage station and power station according to claim 1,
It is characterized in that, the hydroelectric generation module includes hydroenergy storage station（6）With with the hydroenergy storage station（6）Output end connects
The transformer one connect（5）.
4. a kind of polynary energy storage peak shaving frequency modulation system based on hydroenergy storage station and power station according to claim 2,
It is characterized in that, the power station（7）Including the hydraulic turbine（9）, the hydraulic turbine（9）One end and waterwork and equipment（8）
Connection, the hydraulic turbine（9）The other end and generator（10）, the generator（10）With the transformer two（11）Connection.
5. a kind of polynary energy storage peak shaving frequency modulation system based on hydroenergy storage station and power station according to claim 3,
It is characterized in that, the hydroenergy storage station（6）Including pump turbine（3）, the pump turbine（3）Respectively with upper storage reservoir
（1）, lower storage reservoir（2）And dynamotor（4）Connection, the dynamotor（4）With the transformer one（5）Connection.
6. a kind of polynary energy storage peak shaving frequency modulation system based on hydroenergy storage station and power station according to claim 1,
It is characterized in that, the flywheel energy storage group module（23）Including flywheel（12）, the flywheel（12）Pass through permanent magnet brushless dc
Machine（13）It is connected with concatenated PWM converter one（14）With PWM converter two（15）, the PWM converter two（15）Input
End and transformer three（16）Connection.
7. a kind of polynary energy storage peak shaving frequency modulation system based on hydroenergy storage station and power station according to claim 1,
It is characterized in that, the battery energy storage group module（22）Including battery（21）, the battery（21）Pass through DC switchgear
（20）With PCS energy accumulation current converters（19）Connection, the PCS energy accumulation current converters（19）Input terminal and transformer four（18）Connection.
8. a kind of polynary energy storage peak shaving frequency modulation system based on hydroenergy storage station and power station according to claim 5,
It is characterized in that, the pump turbine（3）It selects in Francis turbine, inclined flow turbine, the Tubular Pump hydraulic turbine
One kind.
9. a kind of polynary energy storage peak shaving frequency modulation system based on hydroenergy storage station and power station according to claim 7,
It is characterized in that, the battery（21）Select lead-acid battery, nickel-cadmium cell, lithium ion battery, sodium-sulphur battery, all-vanadium flow battery
In one kind.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108173274A (en) * | 2018-01-25 | 2018-06-15 | 北京北方三合能源技术有限公司 | A kind of polynary energy storage peak shaving frequency modulation system based on hydroenergy storage station and power station |
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2018
- 2018-01-25 CN CN201820124523.0U patent/CN207732446U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108173274A (en) * | 2018-01-25 | 2018-06-15 | 北京北方三合能源技术有限公司 | A kind of polynary energy storage peak shaving frequency modulation system based on hydroenergy storage station and power station |
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