CN109474030A - Multidimensional region self-adapting intelligent charge control method - Google Patents
Multidimensional region self-adapting intelligent charge control method Download PDFInfo
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- H02J7/0026—
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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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
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
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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
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H02J7/0027—
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
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Abstract
The present invention provides a kind of multidimensional region self-adapting intelligent charge control methods, community resident power load in local power supply network, energy-storage system, charging station are considered as a whole, the Working Status Monitoring that each section is carried out, carry out the judgements such as Substation Design capacity >=cell load+charging load+energy storage charging load, Power Plant Design capacity >=cell load+charging load, Power Plant Design capacity+energy storage electric discharge >=cell load+charging load, and carry out deciding whether to make energy-storage system charging, electric discharge, logout accordingly, whether limit controls charging station.The present invention can organically combine substation, cell, charging station, energy-accumulating power station, finally to guarantee the cell electricity consumption of resident as primary goal, charge requirement is combined, then entire ecological chain is adjusted, improves the adaptive adjustment capability of local power net.
Description
Technical field
The present invention relates to the adaptive adjusting controls of charge control and region power load.
Background technique
Currently, charging station built environment is single, frequency of use is not high, and to be provided more easily to electric car use
Environment is very important in some middle-size and small-size power stations of filling of cell periphery construction.The design of transformer of current area substation
Relationship between capacity and actual operating load does not have very big surplus in most cases, therefore, in this item
The design power of the charging station built under part, charging is comparatively smaller, and it is extremely limited to meet charge requirement.
And there are electricity using at the peak time features for cell electricity consumption, in peak time, power load is especially big, the accessible substation of maximum
Design capacity, and in trough period, power load may also very little build cell charging station in this case, bring certain
Design difficulty is difficult to balance between frequency of use and design capacity, also can not effectively pass through to the economy of the charging station of construction
It is thorough.
With gradually popularizing for electric car, an application direction to the retired battery of electric car is exactly energy-storage system,
It is a kind of common application form that energy-storage system is installed in regionality power supply, which additional, and during the economic benefits of energy storage are groping always, always
There is no a kind of good solution.In the adjusting of charging station, power supply network cooperation energy-storage system, so that this local area network was powered
Adaptive ability greatly improves, while charging pile is a kind of direct mode for generating economic interests, for energy storage economic benefit
Exploration is a completely new application.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of multidimensional region self-adapting intelligent recharge logic controlling party
Method can be improved local area network to power distribution, the efficiency of adjusting in netting, improve the utilization rate and adaptability of energy.For this purpose, this hair
Technical solution used by bright is:
Multidimensional region self-adapting intelligent charge control method, it is characterised in that: containing substation, charging station, energy-storage system and
In the local power supply network of community resident electricity consumption, using community resident electricity consumption as substation's main loads, residual capacity distributes to storage
Energy system and charging station, the control logic of the charge control method are as follows:
1) when working normally, P >=A+B+C；
The relationship between the overall design capacity and its load of substation is calculated, when the community resident power load A of detection, energy storage system
Unite load B, and charging station charging load C, three's summation≤substation overall design capacity P, cell electricity consumption is normal, and energy-storage system carries out
Charging or floating charge state, fully respond the charge requirement of charging station charging pile, wherein B is when energy-storage system charges
Just, B is negative when electric discharge；
2) when peak of power consumption, first P >=A+B+C judgement, if not, P >=A+C judges again, if P >=A+C is invalid, then carries out P+
B >=A+C judgement；
When P >=A+B+C is invalid, then carry out the judgement of P >=A+C, meet condition, then energy-storage system stop charging, in
Machine state, substation power to community resident electricity consumption, are fully responded to the charge requirement of charging station charging pile；Otherwise, such as
Fruit energy-storage system state health, can discharge output, then carry out P+B >=A+C judgement, meet condition and then carry out energy storage electric discharge, give
Community resident electricity consumption power supply, fully responds the charge requirement of charging station charging pile；Otherwise charging station charging pile is carried out
The control of drop volume, B is the present discharge power of energy-storage system at this time；
3) energy-storage system exits working condition:
When energy storage system discharges terminate, if being unsatisfactory for P >=A+B+C, the temporary logout of energy-storage system；Judge whether P >=A+C meets,
If satisfied, powering to community resident electricity consumption, the charge requirement of charging station charging pile is fully responded, otherwise charging station is filled
Electric stake carries out drop volume control；
4) energy-storage system working condition:
As P >=A+B+C, energy-storage system is in normal charging or floating charge state；As P < A+C, while energy-storage system meets
When discharging condition, energy-storage system is in discharge condition；As P < A+C, while when energy-storage system is unsatisfactory for discharging condition, store up at this time
Energy system is in logout state.
5) the drop volume of charging station system load:
System judges to carry out P >=A+C judgement when P >=A+B+C is unsatisfactory for, P+B >=A+C judgement is then carried out when being also unsatisfactory for, is discontented with
When sufficient, drop volume control is carried out to charging station charging pile.
Further, in the control method, judgement all first carries out the judgement of P >=A+B+C every time, does not meet such as and carries out again
The judgement of P >=A+C；It does not meet such as, and energy-storage system can discharge output, then carry out the judgement of P+B >=A+C, B is energy storage at this time
The present discharge power of system.
Further, in the control method, the real time monitoring of each power load of local area network power supply system is calculated,
Automatic adjusument is carried out to real-time power load.
Further, in the control method, cloud platform management system monitors energy-storage system, to the networking of energy-storage system and
Logout is controlled according to the power load of local power supply network.
Further, in the control method, charging pile can carry out power distribution, adjust in charging station.
In order to solve the above technical problems, following technical scheme also can be used in the present invention:
Multidimensional region self-adapting intelligent charge control method, it is characterised in that: containing substation, charging station, energy-storage system and
In the local power supply network of community resident electricity consumption, using community resident electricity consumption as substation's main loads, residual capacity distributes to storage
Energy system and charging station, the control logic of the charge control method are as follows:
The relationship of cloud platform management system real-time judge P, A, B, C, P are substation's overall design capacity, are its maximum output ability,
A is community resident power load, and B is energy-storage system charging load, and C is charging station load, and A, B, C are each electricity consumption side in region
Real-time load situation；
Such as P >=A+B+C；(1) is then entered step, otherwise, enters step (2)；
(1) charge requirement that substation runs energy-storage system responds；The charge requirement of charging station charging pile is carried out complete
Volume response；
(2) when P >=A+B+C is unsatisfactory for, cloud platform management system judges the operating status of energy-storage system, if meets
Discharging condition；If so, entering step (3), (4) are otherwise entered step；
(3) cloud platform management system judges whether P >=A+C is true, if so, energy-storage system, which does not discharge, also not to charge into standby
Working condition, substation power to community resident electricity consumption, are fully responded to the charge requirement of charging station charging pile；
If the invalid energy-storage system of P >=A+C has discharging condition, energy storage system discharges judge whether P+B >=A+C is true, if
It sets up, powers to community resident electricity consumption, the charge requirement of charging station charging pile is fully responded, otherwise, first guarantees cell
Residential electricity consumption carries out drop volume control to the charge requirement of charging station charging pile, and wherein B is the present discharge power of energy-storage system；
(4) when energy-storage system is unsatisfactory for discharging condition, by energy-storage system progress logout control；Judgement P >=A is carried out to power load
+ C, if it sets up, if so, then community resident power load and charging station load are unrestricted；If not satisfied, being filled to charging station
Electric stake carries out drop volume control；
Carry out step (1)-(4) control process in, still judge the relationship of P, A, B, C, once meet P >=A+B+C, then into
Enter step (1).
Further, in step (6), if energy storage system discharges finish, (7) are entered step；In step (7) a metallic, P
>=A+C if so, then again by the power supply surplus supply energy-storage system charging of substation, at this point, invalid if occurring P >=A+C again
The case where, then enter step (3).
Further, the method for drop volume control includes:
1) if remaining exportable power is greater than the gross output of charging station, it is sequentially output the power that each charging pile corresponds to demand；
2) if the remaining exportable power of charging station is less than the gross output of charging pile, but can satisfy the total need to charge at this time
It asks, then the operation of charging pile still keeps the corresponding demand output power of charging pile；It is greater than charging in the demand power of charging pile
Stand remaining exportable power when, then can trigger the control function to energy-storage system work, energy-storage system meets output condition and then can
Charge requirement is fed back, the portion requirements power that charging pile is unable to satisfy is provided；If energy-storage system can not access power grid into
Row electric discharge then starts the drop volume output mechanism of charging station control section；
3) the drop volume of charging station system output power exports mechanism, charging of all or part of charging pile to connected electric car
Power carries out a degree of drop power output；In drop volume output mechanism, the priority of charge requirement is also distinguished, if filling at this time
Containing charging VIP user in electricity demanding, charge power resource can be tilted to VIP user, and as user's VIP grade increases,
The magnitude of inclination of charging resource is gradually increased.
Further, charging station output power is adjusted according to the real-time power load situation of local area network, dynamic following transformation.
In control method of the present invention, to community resident power load, energy-storage system load, charge load electricity data collection
In on backstage, backstage carry out data on processing calculate, backstage carry out power load System, to its total load with
Design capacity compares, and obtains the working condition currently powered in local area network, further according to working condition to current power supply local
Control is adjusted in load condition in net, so that power supply local area network load condition is obtained normal effective control, it is raw to reach electricity consumption
The balance of state；
In the control method, there is no particular/special requirement to substation, energy-storage system, charging pile etc., it is only necessary to configure a set of energy prison
Equipment (i.e. backstage) is controlled, equipment meets country and professional standard；Intelligent electric meter on switch cabinet of converting station is accessed into energy
Monitoring device for calculating the charging load of cell power load, energy-storage system, the charging load of charging station, and three is applied
The intelligent electric meter of electric load monitoring passes through Ethernet or other are communicatively connected to backstage, will directly read the negative of needs from the background
Lotus parameter.
In the control method, cloud platform management system will adjust the letter of load by communicating with energy-storage system, charging station
Breath passes to energy-storage system, and energy-storage system controller carries out load tune by controlling the inverter output voltage of energy-storage system again
Section；It is then that the information that drop volume exports is passed into direct-current charging post, is supervised by direct-current charging post for direct-current charging post Load Regulation
The drop volume that the output power that control system controls rectification module carries out the direct-current charging post of charging station is adjusted；It is negative for alternating-current charging pile
Lotus is adjusted, and the information that drop volume exports is passed to alternating-current charging pile, when alternating-current charging pile passes through docking onboard charger again,
The maximum exportable electric current of charging pile is sent to onboard charger, by the output work of Vehicular charger monitoring system control rectification module
The drop volume that rate carries out alternating-current charging pile is adjusted.
In the control method, if the control failure of cloud platform management system, has no effect on the operation of entire local power supply network；
Trip protection is arranged in the local protection of various pieces setting, substation, if rear end is because backstage is failed, regulatory function is lost, and causes to bear
It carries excessive, will lead to substation's trip protection；Energy-storage system is arranged logout and protects, if being discharged to lower voltage limit, energy-storage system is certainly
It is dynamic to exit power grid；Each charging terminal of charging station is configured with a set of local monitoring system, in real time to charging pile operating status
It is monitored, fault condition can cut off the connection with electric vehicle immediately, protect to charging terminal and electric vehicle.
The present invention sets up a bridge to the capacity between the operation and civilian electricity of charging station, and each section is organically combined,
It is allowed to work as a whole, greatly improves the harmony and validity of network operation, the energy for being capable of providing substation
Utilization rate improves, the load condition of local supply network, on charge power and peak valley efficiency, can obtain very big journey
The alleviation and effective use of degree, can be improved local area network to net in power distribution, the efficiency of adjusting, improve energy utilization rate and
Adaptability.
Detailed description of the invention
Fig. 1 is the connection schematic diagram in local power supply network between various pieces in the present invention.
Fig. 2 is background system relational graph in the present invention.
Fig. 3 is local power supply network self-energy flow direction of the present invention schematic diagram.
Fig. 4 is basic algorithm control flow schematic illustration of the invention.
Specific embodiment
The implementation purposes, technical schemes and advantages of control algolithm to describe the present invention are more clearly understood, below
The attached drawing in the embodiment of the present invention will be combined, the present invention is further described in detail.
Multidimensional region self-adapting intelligent charge control method proposed by the present invention is especially suitable for residential area, market, doctor
The case where flows of the people such as institute, scenic spot are big, the region more than electricity consumption, exist simultaneously community resident electricity consumption and electric car charging,
For being allocated adjusting to the load of community resident electricity consumption and electric car charging, while can be to peak by energy-storage system
It is optimized with valley power consumption load condition, monitors each section power load in real time, in the case where guaranteeing residential electricity consumption load,
Sharing of load and the adjusting for carrying out electric car charging again, meet residential electricity consumption load first, do not influence resident's normal electricity consumption, and
Charging pile can be partitioned energy into the case where being no more than Substation Design total capacity, charge to electric car, realize energy
Maximally utilize, and realize that intelligent self adaptive control is adjusted.Below by specific embodiment to implementation of the invention
It is specifically described:
One's respective area substation exports power supply to community resident electricity consumption and charging station, energy-storage system, wherein residential electricity consumption refers to
All electricity consumptions in addition to charging with energy storage.Substation's overall design capacity uses code name P, community resident power load in one's respective area
Using code name A, energy-storage system load uses code name B, and (B is positive when energy-storage system charges, and B is negative when electric discharge) charging station load makes
With code name C, A, B, C be in region each electricity consumption side's real-time load situation in order to ensure Electrical Safety need to guarantee P >=A+B+
C；And when energy-storage system is intervened and adjusts power load situation, in local power supply network, electricity consumption situation need to meet P+B >=A+C, at this time B
For the present discharge power of energy-storage system；When energy-storage system exits power grid or it is not involved in power supply, i.e. B=0, then local power supply network
Interior electricity consumption situation then becomes P >=A+C.
S1: as shown in Figure 1, substation's load-bearing capacity is configured according to transformer capacity, community resident electricity consumption, energy storage
System charges, charging station charges, and corresponding capacity of power distribution cabinet is respectively configured in each section, and a voltameter is arranged in each power distribution cabinet；Cell
Residential electricity consumption part includes residential electricity consumption and all infrastructure electricity consumptions, and power load situation is supervised from substation's power distribution cabinet
Control installs the three-phase intelligent ammeter with communication, measures the voltage and current of the route, obtain the load condition of community resident electricity consumption.
Energy-storage system electricity consumption situation is the charging to battery system, and the monitoring of electricity consumption is arranged on substation's power distribution cabinet, while energy storage control
Device processed is also monitored the electricity consumption situation of energy-storage system, and a set of three with background communication are equally installed on substation's power distribution cabinet
Phase intelligent electric meter measures route real-time voltage electric current, obtains the charging load of energy-storage system；The electric discharge load of energy-storage system is by storing up
The controller of energy system uploads backstage.Charging station electricity consumption corresponds to power distribution cabinet in substation and sets according to electric car charging situation
Electricity monitoring is set, the three-phase intelligent ammeter with communication is installed, measures the voltage and current of the route, power load passes through intelligent electric meter
Backstage is uploaded, while the monitor of charging station charging pile itself also calculates pile body load that charges itself, operating condition prison
Control feeds back to backstage, from the background by the practical operation situation of charging pile in always charging load and charging station, the output to still having
Ability is allocated.
S2: various pieces electricity consumption situation is collected in substation, and passes through system data bus and cloud platform management system
Electricity data is uploaded to cloud platform management system by connection, and background system electricity data based on the received carries out analysis comparison；
Energy-storage system, charging station are connect also by system data bus with background system, and respective operating condition in real time is uploaded,
Cloud platform management system compares it with the data that substation uploads in real time, i.e., backstage can receive in substation's power distribution cabinet
Cell power load data, energy-storage system charging load data, charging station power load data, while energy-storage system controller sheet
Body can also upload energy-storage system charge and discharge data, and charging station master controller can also upload total charging load of charging station, and comparison becomes
The data of power station acquisition and the verification of data of upload, error, which is less than in prescribed limit, is considered as normal condition, its average value is taken to use
To execute subsequent processing；If error is more than prescribed limit, subsequent processing, and feeder alert information are executed with wherein big value from the background,
Remind operation maintenance personnel detection load detection device and energy-storage system, charging station.
S3: whether cloud platform management system judges P >=A+B+C after according to the confirmation data accuracy of S2 and real-time
Meet, if satisfied, then entering S4, otherwise, into S5；
S4: various pieces function executes normally, and whole system is in a healthier operating status, cloud platform management system
Continue the power load situation of monitoring various pieces.Substation carries out full power to the charge requirement that energy-storage system is run and rings
It answers, energy-storage system carries out charging or floating charge state, charging station also can be with maximum power outputs, to the charge requirement of charging pile
Carry out full power response.
S5: when residential electricity consumption load rises, when judging that P >=A+B+C is unsatisfactory for,
Cloud platform management system judges whether P >=A+C is true, if so, energy-storage system, which does not discharge, also not to charge, into standby shape
State, substation power to community resident electricity consumption, are fully responded to the charge requirement of charging station charging pile；
Cloud platform management system judges the operating status of energy-storage system, if meets discharging condition；If so, into
Otherwise S6 enters S10.
S6: energy-storage system feeds back battery operation situation by energy storage controller, and cloud platform management system is by connecing
It receives the signal and makes control command, energy storage controller control energy-storage system is allowed to carry out electric discharge operation.When energy storage system discharges, Yun Ping
The load condition Rule of judgment of platform management system becomes P+B >=A+C, if satisfied, then entering S7, otherwise enters S9.B is storage at this time
The present discharge power of energy system.
S7: energy-storage system discharges, and power load situation in cloud platform management system monitors power supply local area network carries out real
When tracking adjust, if P+B >=A+C is unsatisfactory for, enter step S9.B is the present discharge power of energy-storage system at this time.
S8: after energy storage system discharges, into S3.
S9: if P+B >=A+C is unsatisfactory for, then guarantee community resident electricity consumption first divides charging station power load
Analysis, by being controlled as a result, carrying out suitable drop volume to each charging pile of charging station for analysis, after energy storage system discharges, into
Enter S3.B is the present discharge power of energy-storage system at this time.
S10: if energy-storage system does not have discharging condition, energy-storage system is preferentially subjected to logout control, is used for energy storage system
The rechargeable energy of system is completely used for supporting cell power load；Then judgement P >=A+C is carried out to power load, if it sets up, if
It is that then energy-storage system logout operation mode maintains, and community resident power load and charging station load are unrestricted, can maximum work
Rate output；If not satisfied, then entering the drop volume control model of each charging pile of charging station.
S11: the power load monitoring of cloud platform management system real-time perfoming local power supply network judges the network access of energy-storage system
Condition then enters S3 once meeting.
Judgement all first carries out the judgement of P >=A+B+C every time, does not meet the judgement for carrying out P >=A+C again such as；It does not meet such as, and
Energy-storage system can discharge output, then carry out the judgement of P+B >=A+C, and B is the present discharge power of energy-storage system at this time.
It include an important control, in energy storage system based on above-mentioned multidimensional region self-adapting intelligent recharge logic control method
System intervention power supply because load too high can not support or due to electric discharge or not enough power supply power grid energy cannot be provided when, for maintain it is small
The high load capacity of area's residential electricity consumption needs to carry out charging station drop volume control.The drop volume charging pile being related to have direct-current charging post and
Alternating-current charging pile, drop volume control program are as follows:
1) volume drops in direct-current charging post, and the working method of direct-current charging post is communicated by the BMS of pile body monitor and automobile batteries,
The pile body monitor that the cell voltage of automobile batteries part is told to charging pile goes the whole of control charging pile by charging pile monitor
Flow module, the voltage and cell voltage for exporting charging pile rectification module are close, are closed control contactor, are then further continued for controlling
The charging current of the output voltage of rectification module, battery rises, and to protect automobile batteries, charging current is controlled by BMS and managed, filled
Electric stake is by adjusting the output voltage of control rectification module to reach the charging current of control charging pile.
When exportable because of power limit, when cloud platform management system controls charging pile drop volume, the pile body of direct-current charging post
Monitor obtains current maximum exportable electric current by the communication with cloud platform management system.Maximum exportable electric current is less than electricity
When the BMS demand charging current of pond, charging pile monitor carries out drop volume control, and the exportable size of current of charging pile is that maximum can be defeated
The value of electric current out, the output electric current of charging pile is still the BMS demand for being unsatisfactory for battery at this time, but has had reached charging pile
Maximum capacity.
2) volume drops in alternating-current charging pile, and alternating-current charging pile configures a pile body monitor as direct-current charging post, due to not
There are rectification modules, are unable to control output electric current and power, can not carry out actively adjusting pile body output.And it is corresponding the difference is that handing over
The working method of current charge stake, it is common to exchange pile body design capacity i.e. its peak power output, it is nothing generally after pile body operation
Method is modified it, so alternating-current charging pile, in charging work, background system does not read the information of electric car charging,
But by sending the maximum exportable power of pile body to Vehicular charger, management is charged the battery by Vehicular charger.
In the present invention, intelligent cloud platform management system is obtained by the power load real time monitoring in local area power supply network
The maximum exportable power in charging pile part, the exportable power of maximum cloud platform management system being provided by process control as
This power is sent to Vehicular charger, is controlled by Vehicular charger by the design power of alternating-current charging pile when charging pile work
The charging current of alternating-current charging pile is limited in always under maximum exportable power, volume control is dropped to reach alternating-current charging pile with this
System.
In addition, the charging station application as operation property, there may also be the charging modes of VIP user a kind of, therefore fill
Another mode also may be present in the drop volume control of electric stake:
When electric car is charged in charging station, since exportable underpower remaining in local power supply network is to support to charge
Power output operation is packed, each charging pile can according to the actual situation at this time, and the demand of combined charge vehicle carries out drop volume output.Mesh
In preceding charging station operation, it is understood that there may be VIP user, the charging priority of these users are higher than common charge user, therefore, lead to
The differentiation to VIP user gradation is crossed, the practical drop volume situation of charging station is divided into following several situations again:
1) VIP user's reservation charging
According to VIP user gradation, VIP user can reservation charging, reservation charging stake will retain pile body peak power output, in user
After opening charging, charging pile obtains the charge power of practical electric car demand, at this time by communicating with electric car BMS
Surplus power can be redistributed.
When the same area carries out reservation charging there are multiple VIP users, preferentially meet the high subscriber of VIP grade,
And the subscriber that VIP grade is low, after reserving successfully, it successfully will lead to the pre- of the low priority user since advanced VIP is reserved
About power carries out drop volume in reality output, and drop volume information will prompt when in use.
2) VIP user preferentially charges
In charging pile drop volume charging, VIP user's ordinary user can fully be charged at this moment, and VIP user right is higher than general
General family, when being charged, VIP user will carry out selection charge power (i.e. charge requirement load), cloud platform management at interface
Whether the power of the current VIP user's selection of system-computed exceeds current fan-out capability, if exceeding, cloud platform management system is sent
Other non-VIP user powers are dropped volume further to the charging pile of charging pile to meet the VIP user by command information, when can not
When further dropping volume, cloud platform management system then sends command information to the charging pile of charging pile, and VIP user is first currently to export
Ability charging, fan-out capability meet the charge requirement of the user at the first time after restoring；If without departing from cloud platform management system
Command information is sent to the charging pile of charging pile, then power output is directly required with user.
If alternating-current charging pile, then after swiping the card and being confirmed as VIP user, cloud platform management system is still by alternating-current charging pile
Design power value charge the battery as peak power output output, drop forehead point will carry out secondary drop from other users
Volume.
If charging station system is unsatisfactory for the charge requirement in full of a VIP user, at this moment system still will guarantee remaining
Maximum power is completely used for the charging of advanced VIP user, then can be after advanced VIP for common VIP and other ordinary users
Carry out queuing charge control.
If direct current stake, the charging load of charging pile carries out information exchange, charging pile is charged by connecting with BMS
Demand information will preferentially meet the needs of VIP user, and non-VIP user is exported using charging pile in Background control decline volume, i.e., logical
The output electric current (current-limiting function of module) of control charging pile rectification module is crossed, control precision can reach 0.5A.
3) VIP user preferentially fully charges
Preferentially fully charging refers in user's charging VIP user, and in ordinary user's charging process, VIP user's preferentially fills
Electric permission will be allowed, then confirm through BMS connection, when charging demand for electric vehicles is less than charging station residue output power, cloud
Platform management system will control and preferentially provide charge power in full to advanced VIP user；It is greater than in charging demand for electric vehicles
When charging station residue output power, remaining output power is preferentially all supplied to advanced VIP user by control and is charged.
The way of alternating-current charging pile provides this maximum power that can be exported advanced after being confirmed as VIP user
VIP user.
The preferential right of ordinary user and common VIP user limit will after advanced VIP user's use demands gradually meet,
Remaining charge power is balanced-out next, adjusting, which is gradually distributed, according to VIP grade sequence and reservation priority uses to each charging
Family.
If direct current stake, control mode is consistent with preferential charging permission, charging connection of the load by BMS of charging pile,
Information exchange is carried out, charging pile obtains charging demand current, preferentially fully meets the needs of VIP user, and non-VIP user's use is filled
Electric stake is in Background control decline volume output, i.e., by controlling the output electric current (current-limiting function of module) of charging pile rectification module,
Control precision can reach 0.5A.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For, the present invention can have various changes, combination and variation.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement and improvement etc., should be included within scope of the presently claimed invention.
Claims (10)
1. multidimensional region self-adapting intelligent charge control method, it is characterised in that: containing substation, charging station, energy-storage system
In the local power supply network of community resident electricity consumption, using community resident electricity consumption as substation's main loads, residual capacity is distributed to
The control logic of energy-storage system and charging station, the charge control method is as follows:
1) when working normally, P >=A+B+C；
The relationship between the overall design capacity and its load of substation is calculated, when the community resident power load A of detection, energy storage system
Unite load B, and charging station charging load C, three's summation≤substation overall design capacity P, cell electricity consumption is normal, and energy-storage system carries out
Charging or floating charge state, fully respond the charge requirement of charging station charging pile, wherein B is when energy-storage system charges
Just, B is negative when electric discharge；
2) when peak of power consumption, first P >=A+B+C judgement, if not, P >=A+C judges again, if P >=A+C is invalid, then carries out P+
B >=A+C judgement；
When P >=A+B+C is invalid, then carry out the judgement of P >=A+C, meet condition, then energy-storage system stop charging, in
Machine state, substation power to community resident electricity consumption, are fully responded to the charge requirement of charging station charging pile；Otherwise, such as
Fruit energy-storage system state health, can discharge output, then carry out P+B >=A+C judgement, meet condition and then carry out energy storage electric discharge, give
Community resident electricity consumption power supply, fully responds the charge requirement of charging station charging pile；Otherwise charging station charging pile is carried out
The control of drop volume, B is the present discharge power of energy-storage system at this time；
3) energy-storage system exits working condition:
When energy storage system discharges terminate, if being unsatisfactory for P >=A+B+C, the temporary logout of energy-storage system；Judge whether P >=A+C meets,
If satisfied, powering to community resident electricity consumption, the charge requirement of charging station charging pile is fully responded, otherwise charging station is filled
Electric stake carries out drop volume control；
4) energy-storage system working condition:
As P >=A+B+C, energy-storage system is in normal charging or floating charge state；As P < A+C, while energy-storage system meets
When discharging condition, energy-storage system is in discharge condition；As P < A+C, while when energy-storage system is unsatisfactory for discharging condition, store up at this time
Energy system is in logout state；
5) the drop volume of charging station system load:
System judges to carry out P >=A+C judgement when P >=A+B+C is unsatisfactory for, P+B >=A+C judgement is then carried out when being also unsatisfactory for, is discontented with
When sufficient, drop volume control is carried out to charging station charging pile.
2. multidimensional region self-adapting intelligent charge control method according to claim 1, it is characterised in that: judge every time all
The judgement for first carrying out P >=A+B+C, does not meet the judgement for carrying out P >=A+C again such as；Do not meet such as, and energy-storage system can discharge it is defeated
Out, then the judgement of P+B >=A+C is carried out, B is the present discharge power of energy-storage system at this time.
3. multidimensional region self-adapting intelligent charge control method according to claim 1, it is characterised in that: the drop volume control
System is for meeting its charge power demand with the power demand part of charging pile or temporarily ceasing confession in addition to VIP user
Electricity, with having tendentiousness by the charging pile from power resource allocation to charging where VIP charge user.
4. multidimensional region self-adapting intelligent charge control method according to claim 1, it is characterised in that: local area network supplies
The real time monitoring of each power load of electric system calculates, and carries out automatic adjusument to real-time power load.
5. multidimensional region self-adapting intelligent charge control method according to claim 1, it is characterised in that: cloud platform management
System monitoring energy-storage system, networking and logout to energy-storage system, is controlled according to the power load of local power supply network.
6. multidimensional region self-adapting intelligent charge control method according to claim 1, it is characterised in that: filled in charging station
Electric stake can carry out power distribution, adjust.
7. multidimensional region self-adapting intelligent charge control method, it is characterised in that: containing substation, charging station, energy-storage system
In the local power supply network of community resident electricity consumption, using community resident electricity consumption as substation's main loads, residual capacity is distributed to
The control logic of energy-storage system and charging station, the charge control method is as follows:
The relationship of cloud platform management system real-time judge P, A, B, C, P are substation's overall design capacity, are its maximum output ability,
A is community resident power load, and B is energy-storage system charging load, and C is charging station load, and A, B, C are each electricity consumption side in region
Real-time load situation；
Such as P >=A+B+C；(1) is then entered step, otherwise, enters step (2)；
(1) charge requirement that substation runs energy-storage system responds；The charge requirement of charging station charging pile is carried out complete
Volume response；
(2) when P >=A+B+C is unsatisfactory for, cloud platform management system judges the operating status of energy-storage system, if meets
Discharging condition；If so, entering step (3), (4) are otherwise entered step；
(3) cloud platform management system judges whether P >=A+C is true, if so, energy-storage system, which does not discharge, also not to charge into standby
Working condition, substation power to community resident electricity consumption, are fully responded to the charge requirement of charging station charging pile；
If the invalid energy-storage system of P >=A+C has discharging condition, energy storage system discharges judge whether P+B >=A+C is true, if
It sets up, powers to community resident electricity consumption, the charge requirement of charging station charging pile is fully responded, otherwise, first guarantees cell
Residential electricity consumption carries out drop volume control to the charge requirement of charging station charging pile, and wherein B is the present discharge power of energy-storage system；
(4) when energy-storage system is unsatisfactory for discharging condition, by energy-storage system progress logout control；Judgement P >=A is carried out to power load
+ C, if it sets up, if so, then community resident power load and charging station load are unrestricted；If not satisfied, being filled to charging station
Electric stake carries out drop volume control；
Carry out step (1)-(4) control process in, still judge the relationship of P, A, B, C, once meet P >=A+B+C, then into
Enter step (1).
8. multidimensional region self-adapting intelligent charge control method as claimed in claim 6, is primarily characterized in that: in step
(6) in, if energy storage system discharges finish, (7) are entered step；In step (7) a metallic, P >=A+C if so, then again by power transformation
The power supply surplus supply energy-storage system charging stood, at this point, entering step (3) if occurring the invalid situation of P >=A+C again.
9. multidimensional region self-adapting intelligent charge control method according to claim 1 or 6, it is characterised in that drop volume control
Method include:
1) if remaining exportable power is greater than the gross output of charging station, it is sequentially output the power that each charging pile corresponds to demand；
2) if the remaining exportable power of charging station is less than the gross output of charging pile, but can satisfy the total need to charge at this time
It asks, then the operation of charging pile still keeps the corresponding demand output power of charging pile；It is greater than charging in the demand power of charging pile
Stand remaining exportable power when, then can trigger the control function to energy-storage system work, energy-storage system meets output condition and then can
Charge requirement is fed back, the portion requirements power that charging pile is unable to satisfy is provided；If energy-storage system can not access power grid into
Row electric discharge then starts the drop volume output mechanism of charging station control section；
3) the drop volume of charging station system output power exports mechanism, charging of all or part of charging pile to connected electric car
Power carries out a degree of drop power output；In drop volume output mechanism, the priority of charge requirement is also distinguished, if filling at this time
Containing charging VIP user in electricity demanding, charge power resource can be tilted to VIP user, and as user's VIP grade increases,
The magnitude of inclination of charging resource is gradually increased.
10. according to dimension region adaptivity intelligent charge control method described in claim 1 or 6, it is characterised in that charging station output
Power regulation is according to the real-time power load situation of local area network, dynamic following transformation.
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| CN116979513A (en) * | 2023-07-20 | 2023-10-31 | 一能充电科技(深圳)股份有限公司 | Processing method for dynamic regulation and control of charging power |
| CN116979513B (en) * | 2023-07-20 | 2024-05-31 | 一能充电科技(深圳)股份有限公司 | Processing method for dynamic regulation and control of charging power |
| CN117698487A (en) * | 2024-02-05 | 2024-03-15 | 四川智能建造科技股份有限公司 | Dynamic scheduling method for electric energy of mobile charging and storing vehicle |
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