CN106356922B - The charge control method and system of charging station - Google Patents

The charge control method and system of charging station Download PDF

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Publication number
CN106356922B
CN106356922B CN201610798197.7A CN201610798197A CN106356922B CN 106356922 B CN106356922 B CN 106356922B CN 201610798197 A CN201610798197 A CN 201610798197A CN 106356922 B CN106356922 B CN 106356922B
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charge
charging
electric vehicle
charging station
indicate
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CN106356922A (en
Inventor
王科
赵云
钱斌
肖勇
孙宇军
李秋硕
李广开
曲大鹏
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Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Research Institute of Southern Power Grid Co Ltd
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Guangzhou Power Supply Bureau Co Ltd
Power Grid Technology Research Center of China Southern Power Grid Co Ltd
Research Institute of Southern Power Grid Co Ltd
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    • H02J7/0027—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • 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
    • 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
    • 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
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Secondary Cells (AREA)

Abstract

The present invention relates to a kind of charge control method of charging station and systems, wherein described method includes following steps：The charge requirement data of charging station in the acquisition setting period, and the charge requirement data are analyzed, obtain distributed constant of the history charge requirement in each subcycle；The requirement forecasting data of charging station in next cycle are calculated according to the distributed constant；According to the requirement forecasting data, the charging scheme of charging station is set；Wherein, the charging scheme includes charge mode, the time for accessing charging equipment and charge power；In next cycle, according to the charging scheme, the charging process of charging station is controlled.Through the above technical solutions, the charge control method and system of the charging station of the present invention, realize the orderly control to charging station charging process, meet the charge requirement of each electric vehicle, reduce the charging cost of charging station.

Description

The charge control method and system of charging station
Technical field
The present invention relates to the applied technical field of electric vehicle, more particularly to a kind of charge control method of charging station and System.
Background technology
In recent years, increasingly sharpen, under the overall background of fossil energy increasingly depleted in environmental pollution, greenhouse, electronic vapour The potentiality of energy-saving and environmental protection, the emission reduction of vehicle are generally had an optimistic view of.Rapid Popularization with electric vehicle and application, electric vehicle charging It stands and also comes into being.
In a charging station, it is understood that there may be the part electric vehicle storage period is long, but charge requirement is not urgent；And it is another The part electric vehicle storage period is short, but the situation generation that charge requirement is urgent.In order to meet the use vehicle demand of different user, often There is trickle charge again for existing fast charge with multiple fast charge DC charging motors and trickle charge alternating-current charging pile is had simultaneously in a charging station Electric automobile charging station, orderly charge control method need to consider fast and slow charge demand.
Since the charge requirement of electric vehicle has certain flexibility, electronic vapour can be changed by orderly charge control Vehicle charging load curve reduces charging peak load or charging expense.But existing orderly charge control method be only applicable to it is electronic The case where automobile charges at a slow speed causes charging station charging cost higher.
Invention content
Based on this, it is necessary to cause the higher technology of charging station charging cost to be asked for existing orderly charge control method Topic, provides a kind of charge control method and system of charging station.
A kind of charge control method of charging station, includes the following steps：
The charge requirement data of charging station in the acquisition setting period, and the charge requirement data are analyzed, it obtains Distributed constant of the history charge requirement in each subcycle；
The requirement forecasting data of charging station in next cycle are calculated according to the distributed constant；
According to the requirement forecasting data, the charging scheme of charging station is set；Wherein, the charging scheme includes charging mould Formula, the time for accessing charging equipment and charge power；
In next cycle, according to the charging scheme, the charging process of charging station is controlled.
The charge control method of above-mentioned charging station, by the charge requirement data of the charging station to being acquired in predetermined period into Row analysis obtains distributed constant of the history charge requirement in each subcycle, and charging station in next cycle is calculated Requirement forecasting data；According to the requirement forecasting data, the charging scheme of charging station is set, and according to institute in next cycle Charging scheme is stated, the charging process of charging station is controlled.Through the above technical solutions, the charging control of the charging station of the present invention Method processed realizes the orderly control to charging station charging process, meets the charge requirement of each electric vehicle, reduce and fill The charging cost in power station.
A kind of charge control system of charging station, including：
Acquisition module, the charge requirement data for acquiring charging station in the setting period, and to the charge requirement data It is analyzed, obtains distributed constant of the history charge requirement in each subcycle；
Computing module, the requirement forecasting data for calculating charging station in next cycle according to the distributed constant；
Setup module, for according to the requirement forecasting data, the charging scheme of charging station to be arranged；Wherein, the charging Scheme includes charge mode, the time for accessing charging equipment and charge power；
Control module, in next cycle, according to the charging scheme, being controlled to the charging process of charging station System.
The charge control system of above-mentioned charging station needs the charging of the charging station acquired in predetermined period by acquisition module It asks data to be analyzed to obtain distributed constant of the history charge requirement in each subcycle, and is calculated by computing module The requirement forecasting data of charging station in next cycle；Again by setup module according to the requirement forecasting data, setting charging The charging scheme stood, and utilize control module in next cycle according to the charging scheme, to the charging process of charging station It is controlled.Through the above technical solutions, the charge control system of the charging station of the present invention, realizes to charging station charging process Orderly control, meet the charge requirement of each electric vehicle, reduce the charging cost of charging station.
Description of the drawings
Fig. 1 is the charge control method flow chart of one of the present invention charging station of embodiment；
Fig. 2 is the charge control method flow chart of the charging station of an alternative embodiment of the invention；
Fig. 3 is the structural schematic diagram of one of the present invention charge control system of the charging station of embodiment；
Fig. 4 is the structural representation of one of the present invention setup module of the charge control system of the charging station of embodiment Figure.
Specific implementation mode
In order to further illustrate the effect of the technological means and acquirement of the invention taken, below in conjunction with the accompanying drawings and preferably Embodiment carries out clear and complete description to technical scheme of the present invention.
As shown in FIG. 1, FIG. 1 is the charge control method flow chart of the charging station of one of present invention embodiment, packets Include following steps：
Step S101：The charge requirement data of charging station in the acquisition setting period, and the charge requirement data are carried out Analysis, obtains distributed constant of the history charge requirement in each subcycle；
The charge control method of charging station of the invention, the distributed constant may include in one of the embodiments, Charging station the electric vehicle that each period charges quantity, start to charge up time, charging duration, before and after charging it is each The battery charge levels and battery capacity of electric vehicle.
The setting period described in step S101 can be one day, a week or one month, corresponding history charging What distributed constant of the demand in each subcycle referred to is exactly the every day in each hour in one day, a week or one month The quantity of the middle electric vehicle to charge into charging station starts to charge up the parameters such as time, charging duration.
Step S102：The requirement forecasting data of charging station in next cycle are calculated according to the distributed constant；
In practical applications, the charge control method of charging station of the invention is gone through according to the obtained charging stations of step S101 Distributed constant of the history demand in each subcycle can apply the method random sampling of Monte Carlo simulation to be calculated next The requirement forecasting data of charging station in a period, that is, enter all electric vehicles charging of charging station charging in future time period Requirement forecasting data, including each electric vehicle to charge into charging station start to charge up the time, prediction terminates to fill Battery charge levels, battery capacity etc. when electric time, the battery charge levels for the when of starting to charge up, prediction terminate to charge.Specifically, may be used According to the distributed constant obtained in step S101, next period (next day, next week or next month etc.) is calculated The charge requirement prediction data of interior charging station, i.e., according to the regularity of distribution in predetermined period, the charging distributed in next week needs It asks, to meet the charge requirement for entering the electric vehicle in charging station in each period.
Step S103：According to the requirement forecasting data, the charging scheme of charging station is set；Wherein, the charging scheme Including charge mode, the time of access charging equipment and charge power；
Charge mode described in this step includes quick charge and charges at a slow speed, herein setting access charging equipment when Between and the purpose of charge power be：Overall situation based on tou power price, by adjusting access charging equipment charge when Between and different periods charge power so that charging network minimal, further reduced the charging cost of charging station.
Step S104：In next cycle, according to the charging scheme, the charging process of charging station is controlled.
In this step, according to the charging scheme of the charging station of step S103 settings, to what is charged into charging station Electric vehicle start to charge up the time, charging the charging processes such as duration and charge power controlled.
Charge requirement prediction steps, electric vehicle charge power allocation step and the electricity of electric vehicle described in above-mentioned steps Electrical automobile charge power rate-determining steps, every a charge power scheduling time inter Δ t, sequence is run once, so as to real-time The charging scheme for adjusting charging station, not only meets the charge requirement of each electric vehicle, moreover, reducing the charging of charging station Cost.
The charge control method of above-mentioned charging station, by the charge requirement data of the charging station to being acquired in predetermined period into Row analysis obtains distributed constant of the history charge requirement in each subcycle, and charging station in next cycle is calculated Requirement forecasting data；According to the requirement forecasting data, the charging scheme of charging station is set, and according to institute in next cycle Charging scheme is stated, the charging process of charging station is controlled.Through the above technical solutions, the charging control of the charging station of the present invention Method processed realizes the orderly control to charging station charging process, reduces the charging cost of charging station.
As shown in Fig. 2, Fig. 2 is the charge control method flow chart of the charging station of an alternative embodiment of the invention, it is described According to the requirement forecasting data, the step S103 that the charging scheme of charging station is arranged can also include：
Step S1031：Acquire the charge requirement of the electric vehicle of access charging equipment and each electric vehicle in charging station Charged state the charge power partition function of charging station is determined according to the charge requirement and charged state；Wherein, described Charging equipment includes quick charger and charging pile at a slow speed.
In practical applications, the charge control method of charging station of the invention is filled by acquiring to have accessed in charging station The charging shape of the charge requirement and each electric vehicle of the electric vehicle i of electric equipment (including quick charger and at a slow speed charging pile) State includes the time of the arrival charging station of each electric vehicle i, that is, start to charge up time tI, a(when being traditionally arranged to be current Carve), expected time departure, that is, prediction terminates charging time tI, d, reach charging station, that is, battery charge levels when starting to charge up SoCI, a(being traditionally arranged to be current SoC), expected time departure, that is, terminate battery charge levels SoC when chargingI, d, electric vehicle I battery capacities Bi, and access charging pile state either charge mode si, si=1 expression electric vehicle i is used quickly Charger charges, siCharging pile charging at a slow speed is used in=0 expression electric vehicle i.
In practical applications, it can determine that the charge power partition function of charging station is according to the standard of tou power price：
Wherein, f indicates charging expense, ctIndicate the electricity price of t periods, pI, tCharging work(of the expression electric vehicle i in the t periods Rate.
It is determined each using the network minimal that charges as principle according to the charge power partition function of the charging station of above-mentioned determination Period is assigned to the charge power of each electric vehicle.
Step S1032：According to the charge requirement and demand of the charging equipment quantity, each electric vehicle that are configured in charging station Prediction data determines the constraints of the charge power partition function of charging station；
In this step, filling according to each electric vehicle in the configuring condition of charging equipment in charging station, charging station Electricity demanding and requirement forecasting data determine that the charge power partition function of each electric vehicle in charging station needs the pact met Beam condition.
The charge control method of charging station of the invention, the constraints may include in one of the embodiments,：
The charge mode of the electric vehicle to having accessed charging equipment in charging station is forbidden to be changed.
Specifically, the electric vehicle to charge using quick charger is had begun, its charging modes cannot be changed：
si=1,
In formula, Φ indicates the electric vehicle set for having begun to charge using quick charger.
It has begun, using the electric vehicle of the charging of charging pile at a slow speed, its charging modes cannot be changed：
si=0,
In formula, Ψ indicates to have begun the electric vehicle set using the charging of charging pile at a slow speed.
It is following newly both quick charger to be selected to charge into the electric vehicle that charging station charges, it can also select Charging pile charges at a slow speed：
In formula, EVnewIt indicates the electric vehicle set newly to charge into charging station, is carried out for newly entering charging station The electric vehicle of charging, siFor optimized variable.
The charge control method of charging station of the invention in one of the embodiments, for newly accessing quick charger Charged (si=1) electric vehicle, the first constraints that the time optimizes is started to charge up to it includes：
ti,a≤ti,start≤ti,d-ti,need,
In formula, tI, aIndicate that electric vehicle i starts to charge up time, tI, dIndicate that the prediction of electric vehicle i terminates the charging time, ti,startIt indicates to start to charge up time, t after optimizationi,needElectric vehicle i is indicated with the charging time needed for quick charge, ΦnewIndicate the electric vehicle set that new access quick charger charges；
Wherein, the charging time t needed for the quick charge is calculatedi,needThe step of include：
In formula, SoCI, aIndicate the battery charge levels before electric vehicle i chargings, SoCI, dIndicate the electric vehicle i of prediction Terminate the battery charge levels after charging, Δ t indicates the time interval of charge power scheduling, PfastIndicate the volume of quick charger Determine charge power, η indicates charge efficiency, BiIndicate the battery capacity of electric vehicle i.
The charge control method of charging station of the invention in one of the embodiments, for newly accessing charging pile at a slow speed Charged (si=0) electric vehicle starts to charge up it charge power of time and each period optimize second Constraints includes：
Wherein, pI, tIndicate that charge powers of the electric vehicle i in the t periods, Δ t indicate the time interval of charge power scheduling, η indicates charge efficiency, SoCI, aIndicate the battery charge levels before electric vehicle i chargings, SoCI, dIndicate the electric vehicle i of prediction Terminate the battery charge levels after charging, BiIndicate the battery capacity of electric vehicle i, Ψ expressions accessed at a slow speed charging pile into The electric vehicle set of row charging, ΨnewExpression newly accesses the electric vehicle set that charging pile charges at a slow speed, tI, aIndicate electricity Electrical automobile i starts to charge up time, tI, dIndicate that the prediction of electric vehicle i terminates the charging time, PslowIndicate the volume of charging pile at a slow speed Determine charge power.
The charge control method of charging station of the invention in one of the embodiments, quickly fills all accesses The electric vehicle that motor or at a slow speed charging pile charge, charging process is once can not then interrupt, until battery fills Completely or reach preset charged state, meets following constraint：
PI, t=Pfast,Or PI, t=Pslow,
The charge control method of charging station of the invention in one of the embodiments, any time, the interior access of charging station The electric vehicle quantity that charging equipment charges is no more than the charging equipment quantity of respective type, and specifically, any time fills The electric vehicle quantity to be charged using quick charger in power station is no more than quick charger quantity, i.e.,：Formula In, { t } indicates to access quick charger in the t periods or the set of the electric vehicle of charging pile charging, N are indicated in charging station at a slow speed Quick charger quantity.
Any time, the interior electric vehicle quantity using the charging of charging pile at a slow speed of charging station is no more than charging pile number at a slow speed Amount, i.e.,：In formula, M indicates charging pile quantity at a slow speed in charging station.
Step S1033：According to the charge power partition function and constraints, each electronic vapour in charging station is set The charge mode of vehicle, the charge power for starting to charge up time and each period.
In practical applications, suitable optimization tool packet may be used in the charge control method of charging station of the invention, right Optimization problem described in step S1032 is solved, and the charge mode s of each electric vehicle is obtainedi, access charging equipment when Between tI, startWith the charge power p of each periodI, tDeng.
The charge control method of charging station of the invention in one of the embodiments, in the charging side of setting charging station After case, can be optimized according to the charge power to each electric vehicle of above-mentioned steps as a result, according to present period t The charge mode s of the new electric vehicle to charge into charging stationiWith the time t of access charging equipmenti,start, arrange electronic Automobile accesses charger/stake of corresponding types at the time of corresponding；
Charge power of the electric vehicle optimized according to institute's above-mentioned steps in each period, arrangement access charger/ The electric vehicle of stake is with corresponding charge power pi,tIt charges；
Charge requirement prediction steps, electric vehicle charge power allocation step and the electricity of electric vehicle described in above-mentioned steps Electrical automobile charge power rate-determining steps, every a charge power scheduling time inter Δ t, sequence is run once, so as to real-time The charging scheme for adjusting charging station, not only meets the charge requirement of each electric vehicle, moreover, reducing the charging of charging station Cost.
As shown in figure 3, Fig. 3 is the structural representation of one of the present invention charge control system of the charging station of embodiment Figure includes：
Acquisition module 101, the charge requirement data for acquiring charging station in the setting period, and to the charge requirement number According to being analyzed, distributed constant of the history charge requirement in each subcycle is obtained；
The charge control method of charging station of the invention, the distributed constant may include in one of the embodiments, Charging station the electric vehicle that each period charges quantity, start to charge up time, charging duration, before and after charging it is each The battery charge levels and battery capacity of electric vehicle.
The setting period described in acquisition module 101 can be one day, a week or one month, and corresponding history is filled What distributed constant of the electricity demanding in each subcycle referred to be exactly each hour in one day, a week or one month it is each Enter the quantity for the electric vehicle that charging station charges in it, start to charge up the parameters such as time, charging duration.
Computing module 102, the requirement forecasting data for calculating charging station in next cycle according to the distributed constant；
In practical applications, the charge control system of charging station of the invention, the charging station obtained according to acquisition module 101 Distributed constant of the historic demand in each subcycle can apply the method random sampling of Monte Carlo simulation to be calculated down The requirement forecasting data of charging station in a cycle, that is, enter all electric vehicles charging of charging station charging in future time period Requirement forecasting data, including each electric vehicle to charge into charging station start to charge up the time, prediction terminates Battery charge levels, battery capacity etc. when charging time, the battery charge levels for the when of starting to charge up, prediction terminate to charge.Specifically, Next period (next day, next week or next can be calculated according to the distributed constant obtained in acquisition module 101 Month etc.) the charge requirement prediction data of interior charging station distributes filling in next week that is, according to the regularity of distribution in predetermined period Electricity demanding, to meet the charge requirement for entering the electric vehicle in charging station in each period.
Setup module 103, for according to the requirement forecasting data, the charging scheme of charging station to be arranged；Wherein, described to fill Electric scheme includes charge mode, the time for accessing charging equipment and charge power；
Charge mode described in setup module 103 includes quick charge and charges at a slow speed, and specific charging equipment can be with It is quick charger and charging pile etc. at a slow speed.The time of the charging equipment of setting access herein and the purpose of charge power are：Base Make by adjusting the charge power of time and different periods that access charging equipment charges in the overall situation of tou power price Must charge network minimal, further reduced the charging cost of charging station.
Control module 104, in next cycle, according to the charging scheme, to the charging process of charging station into Row control.
In practical applications, the charge control system of charging station of the invention, the distributed constant of the analysis of acquisition module 101, The charging scheme of requirement forecasting data, the setting of setup module 103 that computing module 102 is calculated, can be every a charging Power dispatching time interval Δ t, sequence run once, to adjust the charging scheme of charging station in real time, not only meet each The charge requirement of electric vehicle, moreover, reducing the charging cost of charging station.
The charge control system of above-mentioned charging station passes through the filling to the charging station that is acquired in predetermined period of acquisition module 101 Electricity demanding data are analyzed to obtain distributed constant of the history charge requirement in each subcycle, and pass through computing module 102 The requirement forecasting data of charging station in next cycle are calculated；Again by setup module 103 according to the requirement forecasting number According to, the charging scheme of charging station is set, and using control module 104 in next cycle according to the charging scheme, to filling The charging process in power station is controlled.Through the above technical solutions, the charge control system of the charging station of the present invention, realizes pair The orderly control of charging station charging process, meets the charge requirement of each electric vehicle, reduces the charging cost of charging station.
As shown in figure 4, Fig. 4 is the setup module of one of the present invention charge control system of the charging station of embodiment 103 structural schematic diagram, including：
First determination unit 1031, charge requirement for acquiring the electric vehicle for accessing charging equipment in charging station and each The charged state of a electric vehicle determines the charge power partition function of charging station according to the charge requirement and charged state； Wherein, the charging equipment includes quick charger and charging pile at a slow speed；
In practical applications, the charge control method of charging station of the invention is filled by acquiring to have accessed in charging station The charging shape of the charge requirement and each electric vehicle of the electric vehicle i of electric equipment (including quick charger and at a slow speed charging pile) State includes the time of the arrival charging station of each electric vehicle i, that is, start to charge up time tI, a(when being traditionally arranged to be current Carve), expected time departure, that is, prediction terminates charging time tI, d, reach charging station, that is, battery charge levels when starting to charge up SoCI, a(being traditionally arranged to be current SoC), expected time departure, that is, terminate battery charge levels SoC when chargingI, d, electric vehicle I battery capacities Bi, and access charging pile state either charge mode si, si=1 expression electric vehicle i is used quickly Charger charges, siCharging pile charging at a slow speed is used in=0 expression electric vehicle i.
In practical applications, it can determine that the charge power partition function of charging station is according to the standard of tou power price：
Wherein, f indicates charging expense, ctIndicate the electricity price of t periods, pI, tCharging work(of the expression electric vehicle i in the t periods Rate.
It is determined each using the network minimal that charges as principle according to the charge power partition function of the charging station of above-mentioned determination Period is assigned to the charge power of each electric vehicle.
Second determination unit 1032, for being filled according to the charging equipment quantity that is configured in charging station, each electric vehicle Electricity demanding and requirement forecasting data determine the constraints of the charge power partition function of charging station；
In this step, filling according to each electric vehicle in the configuring condition of charging equipment in charging station, charging station Electricity demanding and requirement forecasting data determine that the charge power partition function of each electric vehicle in charging station needs the pact met Beam condition.
The charge control system of charging station of the invention, the constraints may include in one of the embodiments,：
The charge mode of the electric vehicle to having accessed charging equipment in charging station is forbidden to be changed.
Specifically, the electric vehicle to charge using quick charger is had begun, its charging modes cannot be changed：
si=1,
In formula, Φ indicates the electric vehicle set for having begun to charge using quick charger.
It has begun, using the electric vehicle of the charging of charging pile at a slow speed, its charging modes cannot be changed：
si=0,
In formula, Ψ indicates to have begun the electric vehicle set using the charging of charging pile at a slow speed.
It is following newly both quick charger to be selected to charge into the electric vehicle that charging station charges, it can also select Charging pile charges at a slow speed：
In formula, EVnewIt indicates the electric vehicle set newly to charge into charging station, is carried out for newly entering charging station The electric vehicle of charging, siFor optimized variable.
The charge control system of charging station of the invention in one of the embodiments, for newly accessing quick charger Charged (si=1) electric vehicle, the first constraints that the time optimizes is started to charge up to it includes：
ti,a≤ti,start≤ti,d-ti,need,
In formula, tI, aIndicate that electric vehicle i starts to charge up time, tI, dIndicate that the prediction of electric vehicle i terminates the charging time, ti,startIt indicates to start to charge up time, t after optimizationi,needElectric vehicle i is indicated with the charging time needed for quick charge, ΦnewIndicate the electric vehicle set that new access quick charger charges；
Wherein, the charging time t needed for the quick charge is calculatedi,needThe step of include：
In formula, SoCI, aIndicate the battery charge levels before electric vehicle i chargings, SoCI, dIndicate the electric vehicle i of prediction Terminate the battery charge levels after charging, Δ t indicates the time interval of charge power scheduling, PfastIndicate the volume of quick charger Determine charge power, η indicates charge efficiency, BiIndicate the battery capacity of electric vehicle i.
The charge control system of charging station of the invention in one of the embodiments, for newly accessing charging pile at a slow speed Charged (si=0) electric vehicle starts to charge up it charge power of time and each period optimize second Constraints includes：
Wherein, pI, tIndicate that charge powers of the electric vehicle i in the t periods, Δ t indicate the time interval of charge power scheduling, η indicates charge efficiency, SoCI, aIndicate the battery charge levels before electric vehicle i chargings, SoCI, dIndicate the electric vehicle i of prediction Terminate the battery charge levels after charging, BiIndicate the battery capacity of electric vehicle i, Ψ expressions accessed at a slow speed charging pile into The electric vehicle set of row charging, ΨnewExpression newly accesses the electric vehicle set that charging pile charges at a slow speed, tI, aIndicate electricity Electrical automobile i starts to charge up time, tI, dIndicate that the prediction of electric vehicle i terminates the charging time, PslowIndicate the volume of charging pile at a slow speed Determine charge power.
The charge control system of charging station of the invention in one of the embodiments, quickly fills all accesses The electric vehicle that motor or at a slow speed charging pile charge, charging process is once can not then interrupt, until battery fills Completely or reach preset charged state, meets following constraint：
Pi,t=Pfast,
The charge control system of charging station of the invention in one of the embodiments, any time, the interior access of charging station The electric vehicle quantity that charging equipment charges is no more than the charging equipment quantity of respective type, and specifically, any time fills The electric vehicle quantity to be charged using quick charger in power station is no more than quick charger quantity, i.e.,：Formula In, { t } indicates to access quick charger in the t periods or the set of the electric vehicle of charging pile charging, N are indicated in charging station at a slow speed Quick charger quantity.
Any time, the interior electric vehicle quantity using the charging of charging pile at a slow speed of charging station is no more than charging pile number at a slow speed Amount, i.e.,：In formula, M indicates charging pile quantity at a slow speed in charging station.
Allocation unit 1033, for according to the charge power partition function and constraints, being arranged each in charging station The charge mode of a electric vehicle, the charge power for starting to charge up time and each period.
In practical applications, suitable optimization tool packet may be used in the charge control system of charging station of the invention, right Optimization problem described in second determination unit 1032 is solved, and the charge mode s of each electric vehicle is obtainedi, access charging The time t of equipmentI, startWith the charge power p of each periodI, tDeng.
The charge control system of charging station of the invention in one of the embodiments, in the charging side of setting charging station After case, can utilize that said units obtain optimizing the charge power of each electric vehicle as a result, and according to current Period t newly enters the charge mode s for the electric vehicle that charging station chargesiWith the time t of access charging equipmenti,start, arrange Electric vehicle accesses charger/stake of corresponding types at the time of corresponding；
Charge power of the electric vehicle optimized according to institute's said units in each period, arrangement access charger/ The electric vehicle of stake is with corresponding charge power pi,tIt charges；
In practical applications, the charge control system of charging station of the invention, the distributed constant of the analysis of acquisition module 101, The charging scheme of requirement forecasting data, the setting of setup module 103 that computing module 102 is calculated, can be every a charging Power dispatching time interval Δ t, sequence run once, to adjust the charging scheme of charging station in real time, not only meet each The charge requirement of electric vehicle, moreover, reducing the charging cost of charging station.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (5)

1. a kind of charge control method of charging station, which is characterized in that include the following steps：
The charge requirement data of charging station in the acquisition setting period, and the charge requirement data are analyzed, obtain history Distributed constant of the charge requirement in each subcycle；
The requirement forecasting data of charging station in next cycle are calculated according to the distributed constant；
According to the requirement forecasting data, the charging scheme of charging station is set；Wherein, the charging scheme include charge mode, Access time and the charge power of charging equipment；
In next cycle, according to the charging scheme, the charging process of charging station is controlled；
The quantity for the electric vehicle that the distributed constant, which includes charging station, to charge in each period, start to charge up the time, The battery charge levels and battery capacity of each electric vehicle before and after charging duration, charging；
It is described according to the requirement forecasting data, the step of charging scheme that charging station is arranged includes：
The charged state for acquiring the charge requirement and each electric vehicle of the electric vehicle of access charging equipment in charging station, according to The charge requirement and charged state determine the charge power partition function of charging station；Wherein, the charging equipment includes quick Charger and at a slow speed charging pile；
After the charge power partition function of the determining charging station the step of, further include：
According to the charge requirement and requirement forecasting data of the charging equipment quantity, each electric vehicle configured in charging station, determine The constraints of the charge power partition function of charging station；
According to the charge power partition function and constraints, be arranged each electric vehicle in charging station charge mode, Start to charge up the charge power of time and each period；
The electric vehicle to charge for newly accessing quick charger starts to charge up it the first constraint that time optimizes Condition includes：
In formula, ti,aIndicate that electric vehicle i starts to charge up time, ti,dIndicate that the prediction of electric vehicle i terminates the charging time, ti,startIt indicates to start to charge up time, t after optimizationi,needElectric vehicle i is indicated with the charging time needed for quick charge, ΦnewIndicate the electric vehicle set that new access quick charger charges；
Wherein, the charging time t needed for the quick charge is calculatedi,needThe step of include：
In formula, SoCi,aIndicate the battery charge levels before electric vehicle i chargings, SoCi,dIndicate that the electric vehicle i of prediction terminates Battery charge levels after charging, Δ t indicate the time interval of charge power scheduling, PfastIndicate that the specified of quick charger is filled Electrical power, η indicate charge efficiency, BiIndicate the battery capacity of electric vehicle i.
2. the charge control method of charging station according to claim 1, which is characterized in that the constraints includes：
The charge mode of the electric vehicle to having accessed charging equipment in charging station is forbidden to be changed；
Any time, the charging that the electric vehicle quantity that the interior access charging equipment of charging station charges is no more than respective type are set Standby quantity.
3. the charge control method of charging station according to claim 1, it is characterised in that：
The electric vehicle to charge for newly accessing charging pile at a slow speed starts to charge up it charging work(of time and each period The second constraints that rate optimizes includes：
Wherein, pi,tIndicate that charge powers of the electric vehicle i in the t periods, Δ t indicate the time interval of charge power scheduling, η tables Show charge efficiency, SoCi,aIndicate the battery charge levels before electric vehicle i chargings, SoCi,dIndicate the electric vehicle i knots of prediction Battery charge levels after beam charging, BiIndicate that the battery capacity of electric vehicle i, Ψ expressions have accessed charging pile progress at a slow speed The electric vehicle set of charging, ΨnewExpression newly accesses the electric vehicle set that charging pile charges at a slow speed, ti,aIndicate electronic Automobile i starts to charge up time, ti,dIndicate that the prediction of electric vehicle i terminates the charging time, PslowIndicate the specified of charging pile at a slow speed Charge power.
4. the charge control method of charging station according to claim 1 or 3, it is characterised in that：
For the electric vehicle for accessing quick charger or charging pile charges at a slow speed, reaching preset charging shape Before state, charging process can not interrupt.
5. a kind of charge control system of charging station, which is characterized in that including：
Acquisition module, the charge requirement data for acquiring charging station in the setting period, and the charge requirement data are carried out Analysis, obtains distributed constant of the history charge requirement in each subcycle；
Computing module, the requirement forecasting data for calculating charging station in next cycle according to the distributed constant；
Setup module, for according to the requirement forecasting data, the charging scheme of charging station to be arranged；Wherein, the charging scheme Including charge mode, the time of access charging equipment and charge power；
Control module, in next cycle, according to the charging scheme, controlling the charging process of charging station；
The setup module includes：
First determination unit, the charge requirement for acquiring the electric vehicle for accessing charging equipment in charging station and each electronic vapour The charged state of vehicle determines the charge power partition function of charging station according to the charge requirement and charged state；Wherein, institute It includes quick charger and charging pile at a slow speed to state charging equipment；
Second determination unit, for according to the charge requirement of the charging equipment quantity, each electric vehicle configured in charging station and Requirement forecasting data determine the constraints of the charge power partition function of charging station；
Allocation unit, for according to the charge power partition function and constraints, each electronic vapour in charging station to be arranged The charge mode of vehicle, the charge power for starting to charge up time and each period；
In second determination unit, the electric vehicle to charge for newly accessing quick charger starts to charge up it The first constraints that time optimizes includes：
In formula, ti,aIndicate that electric vehicle i starts to charge up time, ti,dIndicate that the prediction of electric vehicle i terminates the charging time, ti,startIt indicates to start to charge up time, t after optimizationi,needElectric vehicle i is indicated with the charging time needed for quick charge, ΦnewIndicate the electric vehicle set that new access quick charger charges；
Wherein, the charging time t needed for the quick charge is calculatedi,needThe step of include：
In formula, SoCi,aIndicate the battery charge levels before electric vehicle i chargings, SoCi,dIndicate that the electric vehicle i of prediction terminates Battery charge levels after charging, Δ t indicate the time interval of charge power scheduling, PfastIndicate that the specified of quick charger is filled Electrical power, η indicate charge efficiency, BiIndicate the battery capacity of electric vehicle i.
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