CN109228949A - A kind of multimode charging system for electric automobile and its charging method - Google Patents
A kind of multimode charging system for electric automobile and its charging method Download PDFInfo
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- CN109228949A CN109228949A CN201811390614.XA CN201811390614A CN109228949A CN 109228949 A CN109228949 A CN 109228949A CN 201811390614 A CN201811390614 A CN 201811390614A CN 109228949 A CN109228949 A CN 109228949A
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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Abstract
The present invention relates to a kind of multimode charging system for electric automobile and its charging method, which includes connection grid interface, energy storage device, charging interface, energy switching bus and energy volume control device；The energy volume control device connect row information interaction of going forward side by side by communication network with charging service platform, power network dispatching system, electricity transaction market, car owner.Method includes the following steps: the energy volume control device predicts charging requirement according to the charging requirement relevant information and region charging requirement statistical information, electricity supply is predicted according to electric power energy information provision, the optimization energy storage scheme taking into account economy and securing an adequate supply then is formulated according to charging requirement predictive information, electricity supply predictive information, energy storage relevant information, car owner's charge requirement information.The present invention is capable of providing multi-mode charging service, to meet the charge requirement of car owner's multiplicity, in turn avoids causing biggish load impact to power grid.
Description
Technical field
The present invention relates to a kind of multimode charging system for electric automobile and its charging methods, belong to automobile charging technique field.
Background technique
World today people increasingly pay attention to environmental problem, in order to improve environment using clean energy resource in world's model
Reach common understanding in enclosing, control emission atmosphere pollution is especially reduced with electric car replacing fuel oil automobile and is pushed away extensively by people
It is high.Countries in the world government formulates the timetable of electric car substitution one after another, in recent years, especially battery skill with the development of technology
The trend of the development of art, this substitution is accelerating, and electric car is all being greatly developed in countries in the world.At the same time, as shadow
Another major domain of electric car substitution is rung, charging technique is also in advance in big strides, all over the world all large-scale
Charging infrastructure is disposed, to catch up with the paces of Development of Electric Vehicles.
Now with charging system for electric automobile using more and more extensive, the following problem is technically encountered:
First is that poor user experience.On the one hand as the course continuation mileage of electric car is increasingly longer, the battery capacity of automobile institute band
It is increasing；Another aspect electric car substantially exceeds refueling time by the charging time that the problem to denounce is automobile,
This problem perplexs always electric car substitution.Therefore, charging capacity is promoted rapidly, and it is currently to fill that the charging time, which is greatly shortened,
One important directions of power technology development.
Second is that there are contradictions for new electrically-charging equipment and the planning of original power distribution network bearing load ability.As electrically-charging equipment is disposed
Increasing, the especially electrically-charging equipment of large capacity increases, in addition the feature that automobile moves at any time.This load of electric car
With it is sudden it is strong, the time is short, capacity is big and uncertain distinguishing feature, be a kind of load of brand new class, this load
Deployment is a serious challenge for existing power distribution network.Power distribution network especially according to the planning of existing load type cannot adapt to
The load of this new type of charging system, it is brought to ask along with the Planning Standard of originally many local power distribution networks is relatively low
It inscribes more serious.The burst electricity needs of large capacity charging can have adverse effect on power grid steady electricity supply, can cause electric power
The fluctuation of supply, the serious stable operation that also will affect partial electric grid.If carrying out comprehensive big Zhang Qi to power distribution network for this
Bulging transformation invests huge power grid and is also difficult to bear, and more feasible method still will be solved by charging system itself.
Third is that economy, efficiency and cost, these are all eternal themes.Many car owners wish to obtain economic, low cost
Electric power, for the different demands for meeting different user, this is also that charging system will problems faced.
Summary of the invention
The invention solves technical problems to be: providing one kind can reduce charging cost, improves charge efficiency, meets power grid
It is required that multimode charging system for electric automobile and its charging method, to keep the charging requirement of electric car adjustable and can
Make full use of the complementary energy of each electric car.
In order to solve the above-mentioned technical problem, technical solution proposed by the present invention first is that: a kind of charging of multimode electric car
System,
It is described including connection grid interface, energy storage device, charging interface, energy switching bus and energy volume control device
Grid interface, energy storage device, charging interface are electrically connected with energy switching bus, the grid interface, energy storage device, charging
Interface, energy switching bus pass through real-time control bus and connect with the energy volume control device；The energy flow control
Device processed also passes through communication network and connect and hand over charging service platform, power network dispatching system, electricity transaction market, car owner
Mutual information；The grid interface is used to obtain from power grid or the anti-pushing electric network energy, and the energy storage device includes multiple battery packs, institute
Charging interface is stated with multiple physics charging interfaces, for charging for electric car；The electricity transaction market is for acquiring electricity
Power energy supply information, including Spot Price, history electricity price, plan electricity price and power supply plan；The charging service platform
For obtaining the requirement statistical information that charges in region, including region average charge amount, region maximum charge amount and region charge volume
Distribution；The energy switching bus carries out the two-way energy with grid interface, energy storage device, charging interface respectively and exchanges, for
Energy volume control device feeds back energy flow regime and flow, and receives the control instruction of energy volume control device to control
The flow and flow direction of the energy；The energy volume control device is used for the energy storage relevant information of real-time monitoring energy storage device, charging
Charging requirement relevant information, the electric power energy information provision in electricity transaction market and the power grid demand of power network dispatching system of interface
Side responds relevant information, and the energy storage relevant information includes the work shape of real-time energy storage energy, energy storage historical record and battery pack
State, the charging requirement relevant information include real time charging amount, per day charge volume, day maximum charge amount, the distribution of day charge volume
It is distributed with history charge volume, the demanding side of the electrical power net response relevant information includes demand response plan, urgent need respond request
With power-balance respond request；The energy volume control device also acquires the charge requirement information of car owner by communication network,
The charge requirement information of the car owner includes charging time, charge volume and charge mode, and the charge mode includes that large capacity is fast
Fast charge mode and the conventional charge mode for allowing to extend the charging time.
The further improvement of one of above-mentioned technical proposal is: further including the distributed hair electrically connected with energy switching bus
Electric installation, the distributed power generation unit include device of solar generating and wind power generation plant；The energy flow control dress
The distributed power generation information for being also used to real-time monitoring distributed power generation unit is set, the distributed power generation information includes distributed real
When generated energy and distributed power generation historical record.
The further improvement of one of above-mentioned technical proposal is: the charging interface is also used to obtain the remaining of electric car
Can, the charge requirement information of the car owner further includes allowing automobile surplus energy utility charge mode.
In order to solve the above-mentioned technical problem, technical solution proposed by the present invention second is that: it is a kind of one of using technical solution
Multimode charging system for electric automobile charging method, comprising the following steps:
The energy volume control device is according to the charging requirement relevant information and region charging requirement statistical information to charging
Requirement is predicted to obtain charging requirement predictive information, predicts that electric energy supply situation and price become according to electric power energy information provision
Change trend predicts electricity supply to obtain electricity supply predictive information, then according to charging requirement predictive information, electricity
Power supply predictive information, energy storage relevant information, car owner's charge requirement information formulate the optimization storage for taking into account economy and securing an adequate supply
Energy scheme passes through the energy volume control device and executes above-mentioned optimization energy storage scheme realization optimization energy storage；
Wherein, when car owner is that its electric car selects fast charge mode, the energy volume control device passes through control energy
Source switching bus concentrates the power output of the electric energy and energy-storage system that obtain from power grid to realize to charging interface to the electric car
Carry out large capacity quick charge；When there is car owner to be that its electric car selects large capacity fast charge mode, other car owners are selected
When allowing to extend the conventional charge mode in charging time, at this time if the energy that the request of charging will cause the charging system holds
Temporary shortages are measured, the energy volume control device passes through the charging rhythm for controlling each physics charging interface, in more electricity
It is adjusted between electrical automobile the charging time, using the electric car for the conventional charge mode for allowing to extend the charging time needed for charging
There are also certain free times outside time to meet demand of the electric car of large capacity fast charge mode to energy capacity, with solution
Certainly the problem of system energy capacity temporary shortages.
Two further improvement of above-mentioned technical proposal is: the energy volume control device real-time monitoring is exchanged with the energy
The distributed power generation information of the distributed power generation unit of bus power connection, the distributed power generation unit includes solar power generation
Device and wind power generation plant, the distributed power generation information include distributed generated energy in real time and distributed power generation history note
Record；The energy volume control device is made according to electric power energy information provision and distributed power generation information ensures power supply
The best using energy source scheme of distributed power generation and put into practice.
The further improvement of the two of above-mentioned technical proposal is: the charge requirement information of the car owner further includes allowing automobile
Surplus energy utility charge mode；When having car owner is that its electric car selects large capacity fast charge mode, such as charging system
Energy capacity occur insufficient, then the energy volume control device reversely obtains permission automobile complementary energy by the charging interface
Utilize the complementary energy of the electric car of charge mode.
The further improvement of the two of above-mentioned technical proposal is: the energy volume control device is related according to the energy storage
The rechargeable electrical energy that information, electric power energy information provision, charging requirement relevant information, distributed power generation information are optimized is at we
Case reaches reduction charging electricity to obtain electric energy from power grid when adjustment charging in due course and obtain the ratio of electric energy from energy storage device
The purpose of energy cost.
The further improvement of the two of above-mentioned technical proposal is: the energy volume control device is according to the power supply
Amount predictive information, Demand Side Response relevant information, charging requirement predictive information, energy storage relevant information, distributed power generation information obtain
The Demand Side Response scheme optimized out, then power network dispatching system Demand Side Response is received by the energy volume control device and is referred to
It enables, executes the Demand Side Response scheme of the optimization.
The invention has the beneficial effects that: the present invention is reached by the Accurate Prediction to charging requirement and electricity supply
To the optimization energy storage effect taking into account economy He securing an adequate supply；By the Accurate Prediction to electricity supply, reach reduction charging electricity
Energy cost improves the effect of efficiency, and less expensive rechargeable electrical energy and charging service expense are provided for car owner.The present invention
By that can utilize the assessment of energy storage to charging system, emergency help request power grid operation can be responded by reaching can take into account sound again
It should be with the effect of charging benefit.The present invention had not only reduced the impact to power grid by providing multi-mode charging service, but also reduced
The electric cost of car owner, but also the diversity of car owner's charge requirement is met, it improves service experience and improves service level.
The present invention is supplied using the supplement energy that distributed power generation unit, electric car surplus energy utility and energy storage device provide
The interim notch of power grid power supply, avoids causing biggish load impact to power grid, is not only able to adapt to newly-built regional deployment charging
Infrastructure, and be suitble to guarantee electric car to the electrically-charging equipment of existing old residential area auxiliary construction electric car
It is this with it is sudden it is strong, the time is short, capacity is big and uncertain load will not influence matching for existing load type planning as far as possible
Power grid, i.e., the present invention, which passes through, improves user experience, improves efficiency of energy utilization, solves newly-built charging system and existing power distribution network
Contradiction.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings.
Fig. 1 is the structural schematic diagram of the charging system of the embodiment of the present invention one.
Fig. 2 is the structural schematic diagram of the charging system of the embodiment of the present invention two.
Specific embodiment
Embodiment one
The charging system of the present embodiment, as shown in Figure 1, including connection grid interface, energy storage device, charging interface, energy exchange
Bus and energy volume control device, the grid interface, energy storage device, charging interface connect with energy switching bus electric power
It connects, the grid interface, energy storage device, charging interface, energy switching bus pass through real-time control bus and the energy flow
Amount control device connection.
The energy volume control device also passes through communication network and charging service platform, power network dispatching system, electric power are handed over
Easy market, car owner connect and carry out interactive information.
The grid interface is used to obtain from power grid or the anti-pushing electric network energy, and the energy storage device includes multiple battery packs,
For temporarily storing electric energy.
The charging interface has multiple physics charging interfaces, for charging for electric car.
The electricity transaction market includes real-time for acquiring electric power energy information provision, the electric power energy information provision
Electricity price, history electricity price, plan electricity price and power supply plan.
The charging service platform is used to obtain charging requirement statistical information in the platform management region, including region is averaged
Charge volume, region maximum charge amount and the distribution of region charge volume.
The energy switching bus carries out the two-way energy with grid interface, energy storage device, charging interface respectively and exchanges, and is used for
Energy flow regime and flow are fed back to energy volume control device, and receives the control instruction of energy volume control device to control
The flow and flow direction of the energy processed.
Charging of the energy volume control device for the energy storage relevant information, charging interface of real-time monitoring energy storage device
Requirement relevant information, the electric power energy information provision in electricity transaction market are related to the response of the demanding side of the electrical power net of power network dispatching system
Information, the energy storage relevant information include the working condition of real-time energy storage energy, energy storage historical record and battery pack, the charging
Requirement relevant information includes real time charging amount, per day charge volume, day maximum charge amount, the distribution of day charge volume and history charge volume
Distribution, the demanding side of the electrical power net response relevant information include that demand response plan, urgent need respond request and power-balance are rung
It should request.
The energy volume control device also acquires the charge requirement information of car owner by communication network, and the car owner's fills
Electricity demanding information includes charging time, charge volume and charge mode, the charge mode include large capacity fast charge mode and
Allow to extend the conventional charge mode in charging time.Wherein quick charge mode refers to that the energy volume control device passes through control
It is big to automobile that energy switching bus processed concentrates the power output of the electric energy and energy-storage system that obtain from power grid to realize to charging interface
Capacity charging, meet automotive vehicle owner's short time completes charge requirement；And allows to prolong prolonged normal charge and refer to according to vehicle
Main wish allows the long charging time, outer the time required to completing normal charge to be used to adjust there are also certain
Free time, the energy volume control device can be by controlling the charging rhythm of each physics charging interface, in Duo Tai
It adjusts between Rechargeable vehicle the charging time, as often as possible meets in the case where not increasing energy storage and the input electric power capacity of system
The demand of car owner's quick charge and normal charge.
When in use, the grid interface connects power grid, for that may include from power grid acquisition or the anti-pushing electric network energy
Multichannel power network wiring.The energy storage device may include multiple batteries for storing electric energy to meet the energy requirement of burst
Packet.The electrical equipments such as the charging interface connecting electric automobile, the charging interface are used to fill for electrical appliances such as certain electric cars
Electricity obtains complementary energy out of electrical appliances such as other electric cars, may include multiple physics charging interfaces.The energy is handed over
It changes bus to exchange with grid interface, energy storage device, the two-way energy of charging interface progress respectively, and receives the control instruction control energy
Flow and flow direction, i.e., the described energy volume control device be responsible for controlling the control and operation of entire charging system.
The charging method of the charging system of the present embodiment, comprising the following steps: the energy volume control device is according to electricity
Power energy supply information prediction electric energy supplies situation and price changing trend, is predicted electricity supply to obtain power supply
Measure predictive information.For example, showing that electricity price period of change is predicted by the analysis to history electricity price, obtained more by planning electricity price
Accurate amendment prediction；Show that electric energy supplies the pre- of situation by the analysis of history and power supply plan to distributed power generation
It surveys.
The energy volume control device is according to charging requirement statistical information prediction in charging requirement relevant information and region
The variation tendency of charge requirement predicts charging requirement to obtain charging requirement predictive information.For example, by day charge volume
The analysis that distribution, history charge volume are distributed obtains the mechanical periodicity situation prediction of charging requirement, passes through and region charge volume is added
Distribution factor obtains more accurate amendment prediction.
The energy volume control device is according to electricity supply predictive information, charging requirement predictive information and in conjunction with described
Energy storage relevant information and the charge requirement information of car owner formulate the optimization energy storage scheme taking into account economy and securing an adequate supply, by described
Energy volume control device executes the optimization energy storage scheme and realizes optimization energy storage；Wherein, when car owner is the selection of its electric car
When fast charge mode, the energy volume control device by control energy switching bus concentrate the electric energy that is obtained from power grid with
The power output of energy-storage system is realized to charging interface carries out large capacity quick charge to the electric car；When have car owner be its electricity
Electrical automobile selects large capacity fast charge mode, when other car owners selection allows to extend the conventional charge mode in charging time,
At this time if the request of charging will cause the energy capacity temporary shortages of the charging system, the energy volume control device is logical
The charging rhythm for controlling each physics charging interface is crossed, is adjusted the charging time between more electric cars, using allowing to prolong
The electric car of the conventional charge mode in long charging time is outer the time required to charging, and there are also certain free times to meet great Rong
Demand of the electric car of fast charge mode to energy capacity is measured, to solve the problems, such as system energy capacity temporary shortages.
Formulating optimization energy storage scheme is the prior art, can refer to paper " micro-grid energy storage system control and its economic load dispatching
Method " (author: Gao Wenjie, well space forces, Yang Minghao, China Electric Power Publishing House, 2013 46(01)) and paper " smart grid
Home energy source management system Optimization scheduling algorithm under environment ", author: Zhang Yanyu, Zeng Peng, Zang Chuanzhi " protecting electrical power system and control
System ", 2016,44 (2)), etc..For example, when the system stored energy energy of discovery energy storage device is in low level, while predicting current
Electricity price is in low level, predicts provide the scheme for accelerating to increase energy storage when following car owner's charge requirement is big, the requirement that charges will increase；When
It was found that system stored energy energy is in a high position, prediction current electricity prices are in a high position, predict that following car owner's charge requirement is small, following charging
Requirement accelerates the scheme of consumption energy storage by providing when reducing.
The present embodiment can also make following improve:
1) charging system further includes the distributed power generation unit electrically connected with energy switching bus, the distributed power generation
Device is for obtaining clean electric energy, including device of solar generating and wind power generation plant；The energy volume control device
It is also used to the distributed power generation information of real-time monitoring distributed power generation unit, the distributed power generation information includes distributed real-time
Generated energy and distributed power generation historical record.
In this way when implementing charging method, the energy volume control device can according to electric power energy information provision and
Distributed power generation information, which is made, to be ensured the best using energy source scheme of the distributed power generation of power supply and puts into practice, is made
Ensure that the best using energy source scheme of the distributed power generation of power supply is the prior art, can refer to paper " based on distributed AC servo system
Self light water storage bavin microgrid scheduling strategy " (author: Xue Meidong, Zhao Bo, Zhang Xuesong etc., Automation of Electric Systems, 2014
38 (4): 1-7) implement.
2) in charging system, the charging interface is also used to obtain the complementary energy of electric car, and the charging of the car owner needs
Seeking information further includes allowing automobile surplus energy utility charge mode.Automobile surplus energy utility charge mode is allowed to refer to the meaning according to car owner
The electric energy for also allowing the charging system reversely to obtain Rechargeable vehicle other than allowing the long charging time is willing to, for supplementing
The of short duration capacity that the charging system occurs deficiency (including charge to other automobiles capacity, for the appearance of Demand Side Response
Amount, the capacity for supplementing energy storage), the energy volume control device passes through to above-mentioned car owner's charge requirement, the prediction of charging requirement, electricity
The prediction of power supply, system stored energy amount are calculated the demand of surplus energy utility, and control charging interface and obtain the automobile
Complementary energy capacity supplements temporary capacity notch, and the energy volume control device can guarantee that satisfaction allows complementary energy by planning control
Using the charging requirement of car owner, while economic compensation that can also be certain to the car owner for paying complementary energy.
In this way, being it if any car owner when having car owner is that the selection of its electric car allows automobile surplus energy utility charge mode
Electric car selection large capacity fast charge mode and when leading to the energy off-capacity of the charging system, then the energy flow
Amount control device can reversely obtain those by the charging interface allows the complementary energy of surplus energy utility electric car, solves system
The problem of off-capacity.
The present embodiment also provides data reporting functions and supports to the charging time of car owner and the economic compensation of surplus energy utility, institute
It states the charging time and surplus energy utility adjustment quantity that energy volume control device record car owner is paid and is reported to by networking
Charging service platform, charging service platform announces the service price of different charge modes to car owner in advance, and is reported according to above-mentioned
Data and car owner charging order difference collect service fee realize economic compensation.For example, on regular service water wasting is flat
Quick charge premium collects service charge, converts into money to allowing to prolong prolonged normal charge and giving service charge, to allowing surplus energy utility
Charging also according to the quantity using complementary energy give electric energy costs reimbursement at a discount in addition to time-related.
Therefore, the present embodiment is capable of providing multi-mode charging service function, is analyzed by the energy volume control device
Above-mentioned energy storage information, electricity supply predictive information, the relevant information of electric energy flow provide the charge requirement that response car owner proposes
Prioritization scheme.For example, if having currently encountered the case where vehicle needs quick charge and system spare off-capacity, the energy
Volume control device can allow the of short duration stopping charging of the automobile for prolonging prolonged normal charge to concede capacity by control section
It supports quick charge, restores to continue to charge after the completion of quick charge；And the energy volume control device passes through plan control
It can guarantee the charging requirement for meeting each car owner, while economic compensation that can also be certain to the car owner for paying the charging time.
3) energy volume control device is according to the energy storage relevant information, electric power energy information provision, distributed hair
The rechargeable electrical energy cost approach that power information, charging requirement relevant information are optimized, to be obtained when adjustment charging in due course from power grid
It takes electric energy and obtains the ratio of electric energy from energy storage device, achieve the purpose that reduce rechargeable electrical energy cost.
The rechargeable electrical energy cost approach optimized is the prior art, and can refer to paper, " multi-source procurement supplier selection is asked
The two stages Stochastic Optimization Model and its algorithm of topic " (author: Wang Baohua, He Shiwei, " logistlcs technology ", 2008,27 (10)).Example
Such as, in the case where predicting that the system stored energy of current power supply abundance, energy storage device is in low-level, electricity price is in low level
It provides slave power grids more as far as possible and obtains scheme of the electric energy for charging；When the current power supply of prediction is insufficient, energy storage device
System stored energy is sufficient, electricity price provides slave energy storage devices more as far as possible and obtains side of the electric energy for charging in the case where being in high-order
Case.
4) energy volume control device according to the electricity supply predictive information, Demand Side Response relevant information,
Charging requirement predictive information, energy storage relevant information, distributed power generation information obtain the Demand Side Response scheme of optimization, then pass through institute
It states energy volume control device and receives the instruction of power network dispatching system Demand Side Response, execute the Demand Side Response side of the optimization
Case.
The Demand Side Response scheme for obtaining optimization is the prior art, and can refer to master's thesis, " Demand-Oriented responds
Pricing strategy and the research of electrical equipment Randomized scheduling algorithm " (author: Cao Jun, Shanghai Communications University, degree year: 2013).Example
Such as, the preceding maximum stream flow response scheme that charges of interruption is provided to emergency response request, guarantee is given to less urgent respond request and is worked as
Maximum stream flow response scheme under preceding charge condition provides power-balance respond request and takes into account response and charging economic benefit
Response scheme etc..
The present embodiment introduces advanced energy internet theory, reflects energy flowing information from data, higher
Information level on analysis, processing data, and manage and control the flow process of the energy in turn to reach good application effect
Fruit；By the Accurate Prediction to charging requirement and electricity supply, reach the optimization energy storage effect taking into account economy and securing an adequate supply；
By the Accurate Prediction to electricity supply, it is car owner that achieving the effect that, which reduces rechargeable electrical energy cost, which improves efficiency,
Less expensive rechargeable electrical energy and charging service expense are provided；By that can utilize the assessment of energy storage to system, reaching can be responded tightly
Suddenly request help power grid operation, and can take into account the effect of response and the benefit that charges；It is by providing multi-mode charging service
The charge requirement of car owner's multiplicity is met, and improves service experience and improves service level.The present embodiment also utilizes distribution
The supplement energy that power generation, automobile surplus energy utility, battery energy storage provide supplies the interim notch of power grid power supply, avoids causing to power grid
Biggish load impact.
Embodiment two
The charging system of the present embodiment is the improvement on the basis of charging system in example 1, as shown in Fig. 2, with embodiment one
The difference is that: the energy volume control device includes energy storage management module, requirement management module, charging complementary energy management
Module, flow scheduling control module, communication network interface, whole device is using flow scheduling control module as core, remaining interface
It divides labour with individual responsibility with module and forms hierarchical structure.
The energy storage management module, requirement management module, charging complementary energy management module, flow scheduling control module, communication
Network interface is connect with the real-time control bus communication, and the grid interface, distributed power generation unit, fills energy storage device
Electrical interface, energy interaction bus are connect with the real-time control bus communication；The real-time control bus may include multiple
Physics real-time control bus；The communication network interface is responsible for through communication network and charging service platform, car owner, dispatching of power netwoks
System, electricity transaction market connect interactive information；The communication network may include multiple physical communication networks；
It (includes: battery work that the energy storage management module, which is responsible for managing and controlling each battery pack operational process inside energy storage device,
Make status monitoring, charge and discharge control, echelon utilization level management etc.), for finding the failure of simultaneously treatment of battery packet in time, it is responsible for
Guarantee that echelon works normally as a whole and provide stored energy capacitance, control storage electric energy charge and discharge flow and stream using energy-storage system
To；The information that the energy storage management module is responsible for acquiring and counting energy-storage system (includes: real-time energy storage energy, energy storage history note
Record, echelon utilize battery pack state etc.), by collecting electric energy supply and demand relevant information (packet with other modules networking in charging system
Include: electricity supply prediction, charging requirement prediction, car owner's charge requirement etc.), it is responsible for calculating and takes into account economy and secure an adequate supply
Optimize energy storage scheme, and dynamic update is carried out to scheme, is responsible for providing the control program for realizing optimization energy storage, and be responsible for issuing control
Control is realized in system instruction.The energy storage management module can concentrate deployment or be distributed deployment, and different deployment way may
Influence the information interaction approach of this module Yu other modules of system.The energy storage management module is also responsible for managing and controlling distribution
The operational process of power generator is responsible for acquisition distributed power generation information (including: real-time generated energy, power generation historical record etc.).
The charging complementary energy management module is responsible for managing and controlling charging interface, is responsible between multiple physics charging interfaces
Adjustment charging time and charging capacity, being responsible for acquisition and statistics charging relevant information (includes: real time charging amount, per day charging
Amount, the distribution of day maximum charge amount, day charge volume, the distribution of history charge volume etc.), it is responsible for connection charging service platform collection management area
The statistical information (including: region average charge amount, region maximum charge amount, the distribution of region charge volume etc.) for the requirement that charges in domain；
The charge requirement and settlement information for being responsible for acquisition car owner (include: charging time, charge volume, charge mode, charge mode includes:
It is required that quick charge, allowing to extend the charging time, allowing automobile surplus energy utility etc.)；It is responsible for reporting charging to charging service platform
Data are recorded, while being responsible for providing the prediction to the following charging requirement by the processing to above- mentioned information, and move prediction
State updates；The charging complementary energy management module is also responsible for calculating the automobile charging time under various modes and surplus energy utility adjustment side
Case；The charging complementary energy management module is responsible for controlling charging time and the charge volume of each physics charging interface, when realizing charging
Between adjustment function, be responsible for by physics charging interface obtain automobile complementary energy, realize surplus energy utility function；The charging complementary energy pipe
Reason module is also responsible for record charging process, metering charge capacity, assessment control result, updates charging scheme.
The requirement management module is responsible for managing and controlling grid interface, is responsible for the electric power flow of control multiple power inlet wire
And flow direction, be responsible for acquisition and relevant to the electric energy flow information of statistics (include: per day acquisition electricity, day maximum acquisition electricity,
Electricity is obtained in real time, history obtains electricity etc.), it is responsible for related by collecting demanding side of the electrical power net response to power network dispatching system networking
Information (including: demand response plan, urgent need respond request, power-balance respond request etc.), be responsible for collect it is relevant
Electric power energy information provision (including: Spot Price, history electricity price, plan electricity price, power supply plan etc.), by above-mentioned letter
The processing of breath provides the prediction of future electrical energy supply, and provides the power acquisition scheme of cost optimization, by grid interface
Control execute the power acquisition scheme, and dynamic update is carried out to scheme according to the variation of electricity supply prediction；The need
Amount management module collects above-mentioned electric energy flow information by the networking with correlation module each in charging system, Demand Side Response is believed
The information datas such as breath, charge requirement prediction, the monitoring of system stored energy amount, distributed power generation monitoring, pass through the synthesis to these data
Analysis provides the Demand Side Response control program of optimization, then the instruction starting of the Demand Side Response by receiving power network dispatching system is held
Row scheme realizes Demand Side Response by the control to grid interface.
The flow scheduling control module is the core of the energy volume control device, is responsible for managing and controlling the energy
Switching bus, the balanced supply and demand of energy being responsible between the above-mentioned modules of management are responsible for guaranteeing that the charging system is safe and stable
Operation；The working condition and system core index of the flow scheduling control module real-time monitoring energy switching bus (include: total
Line voltage, bus current, input power, output power, bus operating frequencies etc.), calculate the stabilization of assessment energy switching bus
Working level and stability margin are responsible for that control measure is taken to restore when occurring the case where discovery jeopardizes charging system steady operation
Stablize, by real-time control bus to relevant interface and system issue control instruction (include: energy switching bus, grid interface,
Charging interface, energy-storage system, distribution cloth electricity generation system) execute protection and recovery measure；For example, once detecting part system
Failure causes charging system abnormal, issue immediately control instruction excision faulty component protect charging system work normally partially not by
Failure influences；Control instruction adjustment system is issued immediately when the bus voltage fluctuation for monitoring to generate due to electric energy unbalanced supply-demand
Electric energy unite for requirement, when the demand of feeding more than causes voltage to increase, control reduces supply or increases demand.The flow tune
Degree control module by networking collection system energy storage information between charging system modules (include: real-time energy storage energy,
Energy storage historical record, echelon are using battery pack state etc.), electric energy supply and demand relevant information (include: distributed power generation information, electric power
Supply prediction, charging requirement prediction, car owner's charge requirement etc.), collecting various control programs (includes: the electric power of cost optimization
Acquisition scheme, the adjustment scheme of charging time and surplus energy utility, is taken into account economical and is protected Demand Side Response requirement optimization control scheme
Hinder the optimization energy storage scheme of supply), it is responsible for solving the conflict between above-mentioned each control program；The flow scheduling control module is logical
Cross calculate between various control programs difference discovery conflict, according to priority policy give adjustment and amendment with solution it
Between conflict；For example, when the electric power energy that charging scheme, supplement energy storage concept competition are obtained from power grid, the flow scheduling
Control module can provide the solution that capacity is conceded in supplement energy storage according to the preferential strategy that charges.
The flow scheduling control module is responsible for dispatching electric energy flow between different modules to reach the reduction cost of electric energy
Improve the result of efficiency；In the case where charging system is configured with multiple power inlet wire, the flow scheduling controls mould
Block, which is reached according to the result of electricity supply prediction by the ratio for obtaining electric power flow in multiple power inlet wire reasonable distribution, to be obtained
Take the effect of electric power optimum cost；The flow scheduling control module is by analyzing above-mentioned energy storage relevant information, electricity supply
Predictive information, the relevant information of electric energy flow provide the rechargeable electrical energy cost approach of optimization, obtain when by adjusting charging from power grid
It takes electric energy and achievees the purpose that reduce rechargeable electrical energy cost using the ratio of system stored energy；For example, when forecasted electricity market price is in low level
Shi Jinliang improves the ratio that electric energy is obtained from power grid.
The present invention is not limited to the above embodiment the specific technical solution, and in addition to the implementation, the present invention may be used also
To there is other embodiments.For those skilled in the art, all within the spirits and principles of the present invention, made
The technical solution of the formation such as what modification, equivalent replacement, improvement, should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of multimode charging system for electric automobile, it is characterised in that: including connection grid interface, energy storage device, charging interface,
Energy switching bus and energy volume control device, the grid interface, energy storage device, charging interface are exchanged with the energy always
Line is electrically connected, and the grid interface, energy storage device, charging interface, energy switching bus pass through real-time control bus and institute
State the connection of energy volume control device；The energy volume control device also passes through communication network and charging service platform, power grid
Scheduling system, electricity transaction market, car owner connect and carry out interactive information；
The grid interface is used to obtain from power grid or the anti-pushing electric network energy, and the energy storage device includes multiple battery packs, described
Charging interface has multiple physics charging interfaces, for charging for electric car；
The electricity transaction market for acquiring electric power energy information provision, including Spot Price, history electricity price, plan electricity price and
Power supply plan；
The charging service platform is used to obtain charging requirement statistical information in region, including region average charge amount, region are most
Big charge volume and the distribution of region charge volume；
The energy switching bus carries out the two-way energy with grid interface, energy storage device, charging interface respectively and exchanges, and is used for energy
Source stream amount control device feeds back energy flow regime and flow, and receives the control instruction of energy volume control device to control energy
The flow and flow direction in source；
The energy volume control device is used for energy storage relevant information, the charging requirement of charging interface of real-time monitoring energy storage device
Relevant information, electricity transaction market electric power energy information provision it is related to the response of the demanding side of the electrical power net of power network dispatching system letter
Breath, the energy storage relevant information includes the working condition of real-time energy storage energy, energy storage historical record and battery pack, and the charging needs
Amount relevant information includes real time charging amount, per day charge volume, day maximum charge amount, the distribution of day charge volume and history charge volume point
Cloth, the demanding side of the electrical power net response relevant information include demand response plan, urgent need respond request and power-balance response
Request；
The energy volume control device also acquires the charge requirement information of car owner by communication network, and the charging of the car owner needs
Seeking information includes charging time, charge volume and charge mode, and the charge mode includes large capacity fast charge mode and permission
Extend the conventional charge mode in charging time.
2. multimode charging system for electric automobile according to claim 1, it is characterised in that: further include and energy switching bus
Electrically connected distributed power generation unit, the distributed power generation unit include device of solar generating and wind power generation plant；
The energy volume control device is also used to the distributed power generation information of real-time monitoring distributed power generation unit, the distributed hair
Power information includes distributed generated energy and distributed power generation historical record in real time.
3. multimode charging system for electric automobile according to claim 1 or 2, it is characterised in that: the charging interface is also used
In the complementary energy for obtaining electric car, the charge requirement information of the car owner further includes allowing automobile surplus energy utility charge mode.
4. a kind of charging method of multimode charging system for electric automobile described in claim 1, comprising the following steps: the energy
Volume control device predicts charging requirement according to the charging requirement relevant information and region charging requirement statistical information
Charging requirement predictive information is obtained, electric energy supply situation and price changing trend are predicted according to electric power energy information provision, to electricity
Power supply is predicted to obtain electricity supply predictive information, then pre- according to charging requirement predictive information, electricity supply
Measurement information, energy storage relevant information, car owner's charge requirement information formulate the optimization energy storage scheme taking into account economy and securing an adequate supply, and pass through
The energy volume control device executes above-mentioned optimization energy storage scheme and realizes optimization energy storage；
Wherein, when car owner is that its electric car selects fast charge mode, the energy volume control device passes through control energy
Source switching bus concentrates the power output of the electric energy and energy-storage system that obtain from power grid to realize to charging interface to the electric car
Carry out large capacity quick charge；When there is car owner to be that its electric car selects large capacity fast charge mode, other car owners are selected
When allowing to extend the conventional charge mode in charging time, at this time if the energy that the request of charging will cause the charging system holds
Temporary shortages are measured, the energy volume control device passes through the charging rhythm for controlling each physics charging interface, in more electricity
It is adjusted between electrical automobile the charging time, using the electric car for the conventional charge mode for allowing to extend the charging time needed for charging
There are also certain free times outside time to meet demand of the electric car of large capacity fast charge mode to energy capacity, with solution
Certainly the problem of system energy capacity temporary shortages.
5. the charging method of multimode charging system for electric automobile according to claim 4, it is characterised in that: the energy flow
The distributed power generation information of amount control device real-time monitoring and the electrically connected distributed power generation unit of energy switching bus, it is described
Distributed power generation unit includes device of solar generating and wind power generation plant, and the distributed power generation information includes distributed real
When generated energy and distributed power generation historical record；The energy volume control device is according to electric power energy information provision and distribution
Power generation information, which is made, to be ensured the best using energy source scheme of the distributed power generation of power supply and puts into practice.
6. the charging method of multimode charging system for electric automobile according to claim 5, it is characterised in that: the car owner's
Charge requirement information further includes allowing automobile surplus energy utility charge mode；When have car owner be its electric car select large capacity it is quick
When charge mode, such as there is deficiency in the energy capacity of the charging system, then the energy volume control device is filled by described
Electrical interface reversely obtains the complementary energy for allowing the electric car of automobile surplus energy utility charge mode.
7. the charging method of multimode charging system for electric automobile according to claim 6, it is characterised in that: the energy flow
Amount control device is believed according to the energy storage relevant information, electric power energy information provision, charging requirement relevant information, distributed power generation
The rechargeable electrical energy cost approach optimized is ceased, to obtain electric energy from power grid when adjustment charging in due course and obtain from energy storage device
The ratio of electric energy achievees the purpose that reduce rechargeable electrical energy cost.
8. the charging method of multimode charging system for electric automobile according to claim 6, it is characterised in that: the energy flow
Amount control device is according to the electricity supply predictive information, Demand Side Response relevant information, charging requirement predictive information, energy storage
Relevant information, distributed power generation information obtain the Demand Side Response scheme of optimization, then are connect by the energy volume control device
The instruction of power network dispatching system Demand Side Response is received, the Demand Side Response scheme of the optimization is executed.
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