CN108879653A - A kind of profit method and system based on energy-accumulating power station - Google Patents
A kind of profit method and system based on energy-accumulating power station Download PDFInfo
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- CN108879653A CN108879653A CN201810550062.8A CN201810550062A CN108879653A CN 108879653 A CN108879653 A CN 108879653A CN 201810550062 A CN201810550062 A CN 201810550062A CN 108879653 A CN108879653 A CN 108879653A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/008—Circuit arrangements for ac mains or ac distribution networks involving trading of energy or energy transmission rights
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/50—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads
- H02J2310/56—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads characterised by the condition upon which the selective controlling is based
- H02J2310/62—The condition being non-electrical, e.g. temperature
- H02J2310/64—The condition being economic, e.g. tariff based load management
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
Abstract
The present invention provides a kind of profit method and system based on energy-accumulating power station, and the energy-accumulating power station includes distributed energy storage power station and centralized energy-accumulating power station, the method includes：The distributed energy storage power station stores the electric energy of acquisition；The distributed energy storage power station is powered consumer to obtain income and when the electric energy of distributed energy storage power station storage is greater than the setting value of its state-of-charge SOC, and the dump energy more than SOC setting value is delivered to centralized energy-accumulating power station；Whether the electric energy that the centralization energy-accumulating power station calculates storage can complete electricity transaction, and when the electric energy of the storage can not complete electricity transaction, the centralization energy-accumulating power station is from power grid power purchase to complete electricity transaction.Method combination distributed energy storage power station of the present invention and centralized energy-accumulating power station provide energy storage device for user, and combined charge stake provides sale of electricity channel for user, solves the problems, such as different electric energy investment/subject of operation profit models.
Description
Technical field
The present invention relates to energy-accumulating power station fields, and more particularly, to a kind of profit method based on energy-accumulating power station and
System.
Background technique
In modern smart grid, energy storage is to promote extensive centralized and distributed generation of electricity by new energy access and effectively benefit
With indispensable support technology.It is leading low-carbon energy revolution with clean energy resource, needs the coordination in " source-net-lotus-storage ".
Meanwhile as most important flexibility resource, the development of energy storage technology directly determines that the flexibility of resource is horizontal.On a large scale
After energy-accumulating power station accesses power grid, the distributed energy storage facility of electric system consumption side is acted not only as, promoting distribution can be again
The access of raw energy power generation, plays the role of adjusting power grid power load, it is reversed to power grid to can simultaneously serve as distributed generation resource
Electric energy is provided, provides some ancillary services such as peak-frequency regulation for power grid, can more preferably realize the peak load shifting of electric system.But
It is, for how to utilize energy-accumulating power station, so that it is preferably integrated with power grid, to preferably play power supply function, and make
Different electric energy investment/subjects of operation has good profit model still without preferable solution.
Summary of the invention
In order to solve it is of the existing technology can not solve energy-accumulating power station and effectively integrated with power station, preferably play power supply and make
With the technical issues of, the profit method based on energy-accumulating power station that the present invention provides a kind of, the energy-accumulating power station includes distributed storage
Energy power station and centralized energy-accumulating power station, the method includes：
The distributed energy storage power station stores the electric energy of acquisition；
The distributed energy storage power station is powered consumer to obtain income, and stores up in the distributed energy storage power station
When the electric energy deposited is greater than the setting value of distributed energy storage power station state-of-charge SOC, the dump energy more than SOC setting value is conveyed
To centralized energy-accumulating power station, to obtain certain expense of centralized energy-accumulating power station payment；
Whether the electric energy that the centralization energy-accumulating power station calculates storage can complete electricity transaction, when the electric energy of the storage
When can not complete electricity transaction, the centralization energy-accumulating power station is from power grid power purchase to complete electricity transaction.
Further, the distributed energy storage power station obtains electric energy from power generator.
Further, when multiple distributed energy storage power stations, which meet, conveys the condition of electric energy to centralized energy-accumulating power station,
According to the electrical energy demands value of centralized energy-accumulating power station, according to from big to small suitable of each distributed energy storage power station dump energy value
Sequence conveys electric energy to centralized energy-accumulating power station.
Further, direct current is converted into exchanging by the distributed energy storage power station by dump energy by the first inverter
It after electricity, is transmitted through grid power transmission route, and direct current is converted alternating current to by the second inverter and is transported to centralized energy storage
Power station.
Further, the electricity transaction of the centralized energy-accumulating power station includes providing charging clothes by charging pile for electric vehicle
It is engaged in and collects the charges according to charge capacity.
Further, when the distributed energy storage power station conveys electric energy to centralized energy-accumulating power station, net was paid to power grid
Expense.
According to another aspect of the present invention, a kind of profit system based on energy-accumulating power station of the present invention, the profit system packet
Distributed energy storage power station and centralized energy-accumulating power station are included, wherein：
Distributed energy storage power station, for store and be powered consumer to obtain income the electric energy of acquisition；
Electrical energy transportation unit, the electric energy for being used to store in distributed energy storage power station are greater than the charged shape in distributed energy storage power station
When the setting value of state SOC, the dump energy more than SOC setting value is delivered to centralized energy-accumulating power station, to obtain centralization storage
Certain expense of energy power station payment；
Centralized energy-accumulating power station, whether the electric energy for being used to calculate storage can complete electricity transaction, when the storage
From power grid power purchase to complete electricity transaction when electric energy can not complete electricity transaction.
Further, the profit system further includes power generator, is used to provide electric energy to distributed energy storage power station.
Further, the profit system further includes electric energy scheduling unit, is used for the electricity according to centralized energy-accumulating power station
Energy demand, control distributed energy storage power station convey electricity to centralized energy-accumulating power station according to its sequence of dump energy value from big to small
Energy.
Further, which is characterized in that the electric energy transmission unit includes：
First inverter is used to be converted in the direct current in distributed energy storage power station the alternating current of power grid；
Electrical energy transportation route is used to the alternating current converted through the first inverter being delivered to the second inverter；
Second inverter is used to be transmitted to centralization after the alternating current that electrical energy transportation route conveys is converted to direct current
Energy-accumulating power station.
Further, which is characterized in that the electrical energy transportation route is the power transmission line of power grid.
Further, the centralized energy-accumulating power station is connect with charging pile, provides charging clothes by charging pile for electric vehicle
It is engaged in and collects the charges according to charge capacity.
The present invention also provides a kind of method of supplying power to based on energy-accumulating power station, the energy-accumulating power station includes distributed energy storage power station
With centralized energy-accumulating power station, the method includes：
The distributed energy storage power station stores the electric energy of acquisition；
The distributed energy storage power station is powered consumer, and big in the electric energy of distributed energy storage power station storage
When the setting value of distributed energy storage power station state-of-charge SOC, the dump energy more than SOC setting value is delivered to centralized storage
It can power station；
Whether the electric energy that the centralization energy-accumulating power station calculates storage can complete electricity transaction, when the electric energy of the storage
When can not complete electricity transaction, the centralization energy-accumulating power station is from power grid power purchase to complete electricity transaction.
Further, the distributed energy storage power station obtains electric energy from power generator.
Further, when multiple distributed energy storage power stations, which meet, conveys the condition of electric energy to centralized energy-accumulating power station,
According to the electrical energy demands value of centralized energy-accumulating power station, according to from big to small suitable of each distributed energy storage power station dump energy value
Sequence conveys electric energy to centralized energy-accumulating power station.
Further, direct current is converted into exchanging by the distributed energy storage power station by dump energy by the first inverter
It after electricity, is transmitted through grid power transmission route, and direct current is converted alternating current to by the second inverter and is transported to centralized energy storage
Power station.
Further, the electricity transaction of the centralized energy-accumulating power station includes providing charging clothes by charging pile for electric vehicle
It is engaged in and collects the charges according to charge capacity.
Further, when the distributed energy storage power station conveys electric energy to centralized energy-accumulating power station, net was paid to power grid
Expense.
According to another aspect of the present invention, the present invention also provides a kind of power supply system based on energy-accumulating power station, the systems
Including：
Distributed energy storage power station, for store and be powered to consumer the electric energy of acquisition；
Electrical energy transportation unit, the electric energy for being used to store in distributed energy storage power station are greater than the charged shape in distributed energy storage power station
When the setting value of state SOC, the dump energy more than SOC setting value is delivered to centralized energy-accumulating power station；
Centralized energy-accumulating power station, whether the electric energy for being used to calculate storage can complete electricity transaction, when the storage
From power grid power purchase to complete electricity transaction when electric energy can not complete electricity transaction.
Further, the power supply system further includes power generator, is used to provide electric energy to distributed energy storage power station.
Further, the power supply system further includes electric energy scheduling unit, is used for the electricity according to centralized energy-accumulating power station
Energy demand, control distributed energy storage power station convey electricity to centralized energy-accumulating power station according to its sequence of dump energy value from big to small
Energy.
Further, the electric energy transmission unit includes：
First inverter is used to be converted in the direct current in distributed energy storage power station the alternating current of power grid；
Electrical energy transportation route is used to the alternating current converted through the first inverter being delivered to the second inverter；
Second inverter is used to be transmitted to centralization after the alternating current that electrical energy transportation route conveys is converted to direct current
Energy-accumulating power station.
Further, the electrical energy transportation route is the power transmission line of power grid.
Further, the centralized energy-accumulating power station is connect with charging pile, provides charging clothes by charging pile for electric vehicle
It is engaged in and collects the charges according to charge capacity.
The profit method and system based on energy-accumulating power station and method of supplying power to and system that technical solution of the present invention provides, it is first
It first passes through and combines distributed energy storage power station and centralized energy-accumulating power station, improve resource utilization；Secondly, by that will concentrate
The electricity of formula energy-accumulating power station is sold to electric car, and the benefit and the creator in distributed energy storage power station are divided into, and improves point
The economy benefit of cloth energy-accumulating power station creator；Again, dump energy is conveyed to centralized energy storage by distributed energy storage power station
It when power station, needs through power grid, and pays wheeling rates to grid operator and use, new profit model is provided for power grid operation；
Finally, distributed energy storage power station creator keeps distributed energy storage power station general on a large scale by investing in distributed energy storage power station
And new energy is efficiently utilized, for losing universal generation of electricity by new energy with positive effect.
Detailed description of the invention
By reference to the following drawings, exemplary embodiments of the present invention can be more fully understood by：
Fig. 1 is the flow chart according to the profit method based on energy-accumulating power station of the preferred embodiment for the present invention；
Fig. 2 is the structural schematic diagram according to the profit system based on energy-accumulating power station of the preferred embodiment for the present invention；
Fig. 3 is the flow chart according to the method for supplying power to based on energy-accumulating power station of presently preferred embodiment；
Fig. 4 is the structural representation according to the power supply system based on energy-accumulating power station of presently preferred embodiment
Figure；
Specific embodiment
Exemplary embodiments of the present invention are introduced referring now to the drawings, however, the present invention can use many different shapes
Formula is implemented, and is not limited to the embodiment described herein, and to provide these embodiments be at large and fully disclose
The present invention, and the scope of the present invention is sufficiently conveyed to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings
Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements use identical attached
Icon note.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has person of ordinary skill in the field
It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its
The context of related fields has consistent meaning, and is not construed as Utopian or too formal meaning.
Embodiment one
Fig. 1 is the flow chart according to the profit method based on energy-accumulating power station of the preferred embodiment for the present invention.Such as Fig. 1 institute
Show, the profit method 100 of the present invention based on energy-accumulating power station is since step 101.Energy-accumulating power station of the present invention includes
Distributed energy storage power station and centralized energy-accumulating power station.Wherein, distributed energy storage power station is that customer investment is set up, as power train
The access of system renewable energy power generation, can be used for consuming side for electric system provides electric energy, while can also be used as distribution
Power supply reversely provides electric energy to power grid, and the centralization energy-accumulating power station is mainly arranged in city large parking lot and parking building
In, and in conjunction with charging pile, it is that electric vehicle charges to complete sale of electricity link according to the specific requirements of electric vehicle user.
In step 101, the distributed energy storage power station obtains electric energy from power generator, and the electric energy of acquisition is stored up
It deposits.The power generator mostly uses generation of electricity by new energy device, such as solar energy, wind energy etc..
In step 102, the distributed energy storage power station is powered consumer to obtain income, and in the distribution
It, will be surplus more than SOC setting value when the electric energy of energy-accumulating power station storage is greater than the setting value of distributed energy storage power station state-of-charge SOC
Remaining electrical energy transportation is to centralized energy-accumulating power station, to obtain certain expense of centralized energy-accumulating power station payment.
After distributed energy storage power station stores electric energy, electricity consumption can be provided for resident to obtain income.Meanwhile working as distribution
When the electric energy of energy-accumulating power station is not able to satisfy residential electricity consumption, resident can obtain electric energy in conventional manner by power grid.Wherein, described
The setting value for announcing energy-accumulating power station SOC can sets itself.Rated capacity of the setting value in addition to considering distributed energy storage power station,
It can also be respectively set according to the difference of the interests acquired in different periods.For example, if at night, electricity consumption of resident is much larger than collection
The electricity sales amount of Chinese style energy-accumulating power station, then the value that SOC is arranged is big as far as possible, so that more electric energy are used to provide use for resident
Electricity, conversely, the value for the SOC being arranged is as small as possible if electricity consumption of resident on daytime is less than the electricity sales amount of centralized energy-accumulating power station, from
And by more electrical energy transportations to centralized energy-accumulating power station, thus by centralized energy-accumulating power station to electric car sale of electricity to obtain
More economic benefits.
Preferably, when multiple distributed energy storage power stations, which meet, conveys the condition of electric energy to centralized energy-accumulating power station, root
According to the electrical energy demands value of centralized energy-accumulating power station, according to the sequence from big to small of each distributed energy storage power station dump energy value
Electric energy is conveyed to centralized energy-accumulating power station.
Preferably, dump energy is passed through the first inverter for converting direct-current power into alternating-current power by the distributed energy storage power station
Afterwards, it is transmitted through grid power transmission route, and direct current is converted alternating current to by the second inverter and is transported to centralized energy storage electricity
It stands.
Preferably, when the distributed energy storage power station conveys electric energy to centralized energy-accumulating power station, wheeling rates are paid to power grid
With.
In step 103, whether the electric energy that the centralization energy-accumulating power station calculates storage can complete electricity transaction, when described
When the electric energy of storage can not complete electricity transaction, the centralization energy-accumulating power station is from power grid power purchase to complete electricity transaction.
Preferably, the electricity transaction of the centralized energy-accumulating power station includes providing charging service by charging pile for electric vehicle
And it collects the charges according to charge capacity, and a part of expense is paid to distributed energy storage power station.Therefore, work as distributed energy storage
Power station can sufficiently provide centralized energy-accumulating power station by the electric energy that power grid is conveyed to centralized energy-accumulating power station and sell to electric car
Electric energy when, the electric energy that centralized energy-accumulating power station directly uses itself to store is to electric car sale of electricity, and by resulting profit
A part pays the creator in distributed energy storage power station.
Fig. 2 is the structural schematic diagram according to the profit system based on energy-accumulating power station of the preferred embodiment for the present invention.Such as Fig. 2
Shown, the profit system 200 of the present invention based on energy-accumulating power station includes：
Power generator 201 is used to provide electric energy to distributed energy storage power station.
Distributed energy storage power station 202, for store and be powered to consumer to obtain and receive the electric energy of acquisition
Benefit；
Electrical energy transportation unit 203, the electric energy for being used to store in distributed energy storage power station 202 are greater than distributed energy storage power station
When the setting value of state-of-charge SOC, the dump energy more than SOC setting value is delivered to centralized energy-accumulating power station 204, to obtain
Certain expense of centralized energy-accumulating power station payment；
Centralized energy-accumulating power station 204, whether the electric energy for being used to calculate storage can complete electricity transaction, when the storage
Electric energy when can not complete electricity transaction from power grid power purchase to complete electricity transaction.
Electric energy scheduling unit 205 is used for the electrical energy demands according to centralized energy-accumulating power station 204, controls distributed energy storage
Power station 202 conveys electric energy to centralized energy-accumulating power station according to its sequence of dump energy value from big to small.
Preferably, the electric energy transmission unit 203 includes：
First inverter 231 is used to be converted in the direct current in distributed energy storage power station the alternating current of power grid；
Electrical energy transportation route 232 is used to the alternating current converted through the first inverter being delivered to the second inverter；
Second inverter 233 is used to be transmitted to collection after the alternating current that electrical energy transportation route conveys is converted to direct current
Chinese style energy-accumulating power station.
Preferably, the electrical energy transportation route 233 is the power transmission line of power grid.
Preferably, the centralized energy-accumulating power station 204 is connect with charging pile, provides charging clothes by charging pile for electric vehicle
It is engaged in and collects the charges according to charge capacity.
Embodiment two
Fig. 3 is the flow chart according to the method for supplying power to based on energy-accumulating power station of presently preferred embodiment.Such as
Shown in Fig. 3, the method for supplying power to 300 of the present invention based on energy-accumulating power station is since step 301.Energy-accumulating power station of the present invention
Including distributed energy storage power station and centralized energy-accumulating power station.Wherein, distributed energy storage power station is that customer investment is set up, as electricity
The access of Force system renewable energy power generation, can be used for consuming side for electric system and provides electric energy, while can also be used as point
Cloth power supply reversely provides electric energy to power grid, and the centralization energy-accumulating power station is mainly arranged in city large parking lot and stops
Che Louzhong, and in conjunction with charging pile, it is that electric vehicle charges to complete sale of electricity link according to the specific requirements of electric vehicle user.
In step 301, the distributed energy storage power station obtains electric energy from power generator, and the electric energy of acquisition is stored up
It deposits.The power generator mostly uses generation of electricity by new energy device, such as solar energy, wind energy etc..
In step 302, the distributed energy storage power station is powered consumer, and stores up in the distributed energy storage power station
When the electric energy deposited is greater than the setting value of distributed energy storage power station state-of-charge SOC, the dump energy more than SOC setting value is conveyed
To centralized energy-accumulating power station.
After distributed energy storage power station stores electric energy, electricity consumption can be provided for resident to obtain income.Meanwhile working as distribution
When the electric energy of energy-accumulating power station is not able to satisfy residential electricity consumption, resident can obtain electric energy in conventional manner by power grid.Wherein, described
The setting value for announcing energy-accumulating power station SOC can sets itself.Rated capacity of the setting value in addition to considering distributed energy storage power station,
It can also be respectively set according to the difference of the interests acquired in different periods.For example, if at night, electricity consumption of resident is much larger than collection
The electricity sales amount of Chinese style energy-accumulating power station, then the value that SOC is arranged is big as far as possible, so that more electric energy are used to provide use for resident
Electricity, conversely, the value for the SOC being arranged is as small as possible if electricity consumption of resident on daytime is less than the electricity sales amount of centralized energy-accumulating power station, from
And by more electrical energy transportations to centralized energy-accumulating power station, thus by centralized energy-accumulating power station to electric car sale of electricity to obtain
More economic benefits.
Preferably, when multiple distributed energy storage power stations, which meet, conveys the condition of electric energy to centralized energy-accumulating power station, root
According to the electrical energy demands value of centralized energy-accumulating power station, according to the sequence from big to small of each distributed energy storage power station dump energy value
Electric energy is conveyed to centralized energy-accumulating power station.
Preferably, dump energy is passed through the first inverter for converting direct-current power into alternating-current power by the distributed energy storage power station
Afterwards, it is transmitted through grid power transmission route, and direct current is converted alternating current to by the second inverter and is transported to centralized energy storage electricity
It stands.
Preferably, when the distributed energy storage power station conveys electric energy to centralized energy-accumulating power station, wheeling rates are paid to power grid
With.
In step 303, whether the electric energy that the centralization energy-accumulating power station calculates storage can complete electricity transaction, when described
When the electric energy of storage can not complete electricity transaction, the centralization energy-accumulating power station is from power grid power purchase to complete electricity transaction.
Preferably, the electricity transaction of the centralized energy-accumulating power station includes providing charging service by charging pile for electric vehicle
And it collects the charges according to charge capacity, and a part of expense is paid to distributed energy storage power station.Therefore, work as distributed energy storage
Power station can sufficiently provide centralized energy-accumulating power station by the electric energy that power grid is conveyed to centralized energy-accumulating power station and sell to electric car
Electric energy when, the electric energy that centralized energy-accumulating power station directly uses itself to store is to electric car sale of electricity, and by resulting profit
A part pays the creator in distributed energy storage power station.
Fig. 4 is the structural representation according to the power supply system based on energy-accumulating power station of presently preferred embodiment
Figure.As shown in figure 4, the profit system 400 of the present invention based on energy-accumulating power station includes：
Power generator 401 is used to provide electric energy to distributed energy storage power station.
Distributed energy storage power station 402, for store and be powered to consumer the electric energy of acquisition；
Electrical energy transportation unit 403, the electric energy for being used to store in distributed energy storage power station 202 are greater than distributed energy storage power station
When the setting value of state-of-charge SOC, the dump energy more than SOC setting value is delivered to centralized energy-accumulating power station 404；
Centralized energy-accumulating power station 404, whether the electric energy for being used to calculate storage can complete electricity transaction, when the storage
Electric energy when can not complete electricity transaction from power grid power purchase to complete electricity transaction.
Electric energy scheduling unit 405 is used for the electrical energy demands according to centralized energy-accumulating power station 404, controls distributed energy storage
Power station 402 conveys electric energy to centralized energy-accumulating power station according to its sequence of dump energy value from big to small.
Preferably, the electric energy transmission unit 403 includes：
First inverter 431 is used to be converted in the direct current in distributed energy storage power station the alternating current of power grid；
Electrical energy transportation route 432 is used to the alternating current converted through the first inverter being delivered to the second inverter；
Second inverter 433 is used to be transmitted to collection after the alternating current that electrical energy transportation route conveys is converted to direct current
Chinese style energy-accumulating power station.
Preferably, the electrical energy transportation route 433 is the power transmission line of power grid.
Preferably, the centralized energy-accumulating power station 404 is connect with charging pile, provides charging clothes by charging pile for electric vehicle
It is engaged in and collects the charges according to charge capacity, and a part of expense is paid to distributed energy storage power station.
The present invention is described by reference to a small amount of embodiment.However, it is known in those skilled in the art, as
Defined by subsidiary Patent right requirement, in addition to the present invention other embodiments disclosed above equally fall in it is of the invention
In range.
Normally, all terms used in the claims are all solved according to them in the common meaning of technical field
It releases, unless in addition clearly being defined wherein.All references " one/described/be somebody's turn to do [device, component etc.] " are all opened ground
At least one example being construed in described device, component etc., unless otherwise expressly specified.Any method disclosed herein
Step need not all be run with disclosed accurate sequence, unless explicitly stated otherwise.
Claims (12)
1. a kind of profit method based on energy-accumulating power station, which is characterized in that the energy-accumulating power station include distributed energy storage power station and
Centralized energy-accumulating power station, the method includes：
The distributed energy storage power station stores the electric energy of acquisition；
The distributed energy storage power station is powered consumer to obtain income, and in distributed energy storage power station storage
When electric energy is greater than the setting value of distributed energy storage power station state-of-charge SOC, the dump energy more than SOC setting value is delivered to collection
Chinese style energy-accumulating power station, to obtain certain expense of centralized energy-accumulating power station payment；
Whether the electric energy that the centralization energy-accumulating power station calculates storage can complete electricity transaction, when the electric energy of the storage cannot
When enough completing electricity transaction, the centralization energy-accumulating power station is from power grid power purchase to complete electricity transaction.
2. the method according to claim 1, wherein the distributed energy storage power station obtains electricity from power generator
Energy.
3. the method according to claim 1, wherein being stored up when multiple distributed energy storage power stations meet to centralization
When the condition of energy power station conveying electric energy, according to the electrical energy demands value of centralized energy-accumulating power station, according to each distributed energy storage power station
The sequence from big to small of dump energy value conveys electric energy to centralized energy-accumulating power station.
4. the method according to claim 1, wherein dump energy is passed through first by the distributed energy storage power station
Inverter is transmitted after converting direct-current power into alternating-current power through grid power transmission route, and is converted alternating current by the second inverter
Centralized energy-accumulating power station is transported at direct current.
5. the method according to claim 1, wherein the electricity transaction of the centralization energy-accumulating power station includes passing through
Charging pile provides charging service for electric vehicle and collects the charges according to charge capacity.
6. according to claim 1 or method described in 3, which is characterized in that the distributed energy storage power station is to centralized energy storage
When power station conveys electric energy, used to power grid payment wheeling rates.
7. a kind of profit system based on energy-accumulating power station, which is characterized in that the profit system include distributed energy storage power station and
Centralized energy-accumulating power station, wherein：
Distributed energy storage power station, for store and be powered consumer to obtain income the electric energy of acquisition；
Electrical energy transportation unit, the electric energy for being used to store in distributed energy storage power station are greater than distributed energy storage power station state-of-charge
When the setting value of SOC, the dump energy more than SOC setting value is delivered to centralized energy-accumulating power station, to obtain centralized energy storage
Certain expense of power station payment；
Centralized energy-accumulating power station, whether the electric energy for being used to calculate storage can complete electricity transaction, when the electric energy of the storage
From power grid power purchase to complete electricity transaction when can not complete electricity transaction.
8. profit system according to claim 7, which is characterized in that the profit system further includes power generator, is used
In to distributed energy storage power station provide electric energy.
9. profit system according to claim 7, which is characterized in that the profit system further includes electric energy scheduling unit,
It is used for the electrical energy demands according to centralized energy-accumulating power station, controls distributed energy storage power station according to its dump energy value from big to small
Sequence to centralized energy-accumulating power station convey electric energy.
10. profit system according to claim 7, which is characterized in that the electric energy transmission unit includes：
First inverter is used to be converted in the direct current in distributed energy storage power station the alternating current of power grid；
Electrical energy transportation route is used to the alternating current converted through the first inverter being delivered to the second inverter；
Second inverter is used to be transmitted to centralized energy storage after the alternating current that electrical energy transportation route conveys is converted to direct current
Power station.
11. profit system according to claim 10, which is characterized in that the electrical energy transportation route is that the electric power of power grid is defeated
Line sending road.
12. profit system according to claim 7, which is characterized in that the centralization energy-accumulating power station is connect with charging pile,
Charging service is provided for electric vehicle by charging pile and is collected the charges according to charge capacity.
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