CN106877431A - Charging pile for electric vehicle network load balancing method and electric vehicle charging device - Google Patents
Charging pile for electric vehicle network load balancing method and electric vehicle charging device Download PDFInfo
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- CN106877431A CN106877431A CN201710118074.9A CN201710118074A CN106877431A CN 106877431 A CN106877431 A CN 106877431A CN 201710118074 A CN201710118074 A CN 201710118074A CN 106877431 A CN106877431 A CN 106877431A
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- 230000005611 electricity Effects 0.000 claims description 9
- 238000004364 calculation method Methods 0.000 claims description 6
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Classifications
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- H02J7/0027—
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- 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
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
-
- 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
- B60L53/63—Monitoring or controlling charging stations in response to network capacity
-
- 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
- B60L53/64—Optimising energy costs, e.g. responding to electricity rates
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- 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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/22—Balancing the charge of battery modules
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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
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
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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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (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)
Abstract
The present invention relates to a kind of charging pile for electric vehicle network load balancing method and electric vehicle charging device, the method comprising the steps of：A, the electric current for reading electric motor car feedback, safe charging electric current is distributed to the electric motor car；B, the weight for calculating each phase, compare three weights of phase, and selection has the phase of maximum weight, and closed pair is answered phase relay, started to electric motor car power transmission, if phase weights are the same, selection possesses the phase of average charge speed higher；C, the current real time charging information of reading, the real-time dynamic optimal electric current of the electric motor car is calculated according to the charge information, and to the described real-time optimal current of electric motor car output.Can be that the electric motor car of different priorities distributes rational electric current to balance the load according to charging interval and vehicle when the power supply deficiency at scene, reach and support electric motor car as much as possible while the utilization power supply of charging and maximal efficiency in peak time.
Description
Technical field
The present invention relates to electric motor car charging technique field, specifically refer to the charging pile for electric vehicle network based on linear programming and bear
Carry equalization methods and electric vehicle charging device.
Background technology
In the prior art, mostly charge collection and charging heap, and supply of electric power is sufficient.But utilization rate is not high.In cell and
Then supply of electric power is limited, it is necessary to adapt to the need for electricity of different times for the charging pile in market.
In the prior art, the Time-distribution of charge volume is presented unbalanced distribution, opposite with car peak period.Noon and
Evening power consumption is high.So office building area work hours load too high and night load it is low, residential building is opposite.To with peak
The loading demand of phase is that the electric stake of standard outfit will cause the very big wasting of resources.
The content of the invention
The main object of the present invention is to provide a kind of charging pile for electric vehicle network load balancing method and electric motor car charges and fills
Put, can be that the electric motor car of different priorities is distributed according to charging interval and vehicle when the power at scene supplies not enough
Rational electric current is reached and supports that electric motor car as much as possible charges and maximal efficiency simultaneously in peak time balancing the load
Using power supply.
The technical solution adopted for the present invention to solve the technical problems is：
The present invention provides a kind of charging pile for electric vehicle network load balancing method, it is characterised in that including step：
A, enter charging pile and after connecting charging gun in electric motor car, the electric current of electric motor car feedback is read, according to the feedback
Testing current goes out basic parameter, and safe charging electric current is distributed to the electric motor car according to the basic parameter；
B, Selecting phasing：Go out the weight of each phase according to the Parameter Calculation, compare three weights of phase, select
Phase with maximum weight, closed pair is answered phase relay, is started to electric motor car power transmission, if phase weights are the same, selection
Possess the phase of average charge speed higher；
C, load balancing：Current real time charging information is read, the real-time of the electric motor car is calculated according to the charge information
Dynamic optimal electric current, and export the optimal current to the electric motor car.
Preferably, the weight for calculating each phase, specifically includes：Total current according to each phase, charge
Each electric motor car charging current, charge each electric motor car charge volume and charge each electric motor car it is pre-
The meter charging interval draws each phase weights.
Preferably, the charge information includes：The charging current of each electric motor car, charge each electric motor car
Charge volume, charged duration.
A kind of electric vehicle charging device, it includes：
Current distribution unit, for after electric motor car enters charging pile and connects charging gun, reading the electricity of electric motor car feedback
Stream, the testing current according to the feedback goes out basic parameter, and safe charging electric current is distributed to the electric motor car according to the basic parameter；
Phase selection unit, the weight for going out each phase according to the Parameter Calculation compares three power of phase
Weight, selection has the phase of maximum weight, and closed pair is answered phase relay, started to electric motor car power transmission, if phase weights one
Sample, selection possesses the phase of average charge speed higher；
Load Balance Unit, for reading current real time charging information, the electric motor car is calculated according to the charge information
Real-time dynamic optimal electric current, and export the optimal current to the electric motor car.
Preferably, the phase selection unit, for the total current according to each phase, in each electric motor car for charging
Charging current, obtained in the charge volume of each electric motor car for charging and in each electric motor car estimated charging interval charged
Go out each phase weights.
Preferably, the charge information includes：The charging current of each electric motor car, charge each electric motor car
Charge volume, charged duration.
Implement technical scheme, have the advantages that：The method and apparatus that the present invention is provided, solve height
How peak period distributes the problem of power, improves the open ended customer volume of charging pile network and has saved power network resources raising
Electric energy utilization rate.Avoid overcharging and in the energy waste in rush hour, dynamically divided according to use habit and charging interval
With electric current, it is ensured that proprietary basic trip requirements.
Brief description of the drawings
Fig. 1 is method flow diagram provided in an embodiment of the present invention；
Fig. 2 is apparatus structure schematic diagram provided in an embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The embodiment of the present invention provides a kind of charging pile for electric vehicle network load balancing method based on linear programming, such as Fig. 1
It is shown, including step：
A, enter charging pile and after connecting charging gun in electric motor car, the electric current of electric motor car feedback is read, according to the feedback
Testing current goes out basic parameter, and safe charging electric current is distributed to the electric motor car according to the basic parameter；
B, Selecting phasing：Go out the weight of each phase according to the Parameter Calculation, compare three weights of phase, select
Phase with maximum weight, closed pair is answered phase relay, is started to electric motor car power transmission, if phase weights are the same, selection
Possess the phase of average charge speed higher.In other embodiments, more specifically, the weight for calculating each phase,
Specifically include：Total current according to each phase, charging current in each electric motor car for charging, in each electricity for charging
The charge volume (can be by calculating average charge speed in the charge volume of each electric motor car for charging) of motor-car and fill
The bases such as each electric motor car estimated charging interval (by charging current and charge volume, being used to predict charge completion time) of electricity
This parameter draws each phase weights.
In the Selecting phasing stage, another phase can not be switched to after being started to charge up due to electric stake, therefore enter line phase choosing
It is necessary to select.Based on detection electricity piling method above, increase Selecting phasing strategy to improve efficiency.The greedy algorithm for improving
It is applied to this Selecting phasing stage.In Selecting phasing stage, approximate knapsack problem.Target is to keep the acceptable effect that charges
The automobile quantity that can support to charge simultaneously is improved in the case of rate to greatest extent.The inventive method is carried out using greedy algorithm
Detect and Selecting phasing, the formula of the Selecting phasing is：
C:Excess supply electric current total amount, a:The electric motor car number currently charged in this phase, A:This phase is filled
The charging current that the electric motor car of electricity is used, W:The electricity (kw*h) for having consumed, P:The estimated probability for completing to charge.
The weight of each phase being calculated according to the method described above, being had new electric motor car to add every time and is charged, all selections have
The phase of weight limit is charged.The setting of P functions is flexible, can be optimized according to the actual conditions in different places.
C, load balancing：Current real time charging information is read, the real-time of the electric motor car is calculated according to the charge information
Dynamic optimal electric current, and export the optimal current to the electric motor car.In other embodiments, more specifically, it is described to fill
Power information includes：The charging current of each electric motor car, charge each electric motor car charge volume, charged duration.Institute
Optimal current is stated for dynamic optimal electric current, is the electric motor car of different priorities according to the desired value of charging interval and charge volume and complete
Into charging, the expected time distributes corresponding electric current to balance the load, and reaches and supports electric motor car as much as possible simultaneously in peak time
Charging and the utilization power supply of maximal efficiency.Improve the open ended customer volume of charging pile network and saved power network resources and improve
Electric energy utilization rate.Avoid overcharging and in the energy waste in rush hour.
In the case where three-phase input one is mutually exported, following two linear equations are listed, being solved using simplex method is carried out
Load balance optimizes performance：
Maximize：
It is limited to：
a:The electric stake number charged in current this phase
By solving this matrix, at every 20 minutes, each new car carried out first resource most there is the car departure time to system
Optimal sorting is matched somebody with somebody.
Estimated by the way that charging probability may be completed in future to each electric motor car.P with the form design of segmentation possibilities, by
The time is carried out to existing record of charging and CURRENT DISTRIBUTION statistics draws and exports real-time current to the electric motor car.By current
The electric motor car of all chargings in each phase charges and solves optimal charging current.Judge whether electric motor car enters charging most simultaneously
Stage (stage that charging vehicle will be filled with shortly, charging current can be presented stepped decline) afterwards, if final stage is entered
Pressure is arranged to safe current charging.Wherein, in the method：1 altogether charging current be not more than the electric current that the phase can be provided.
2 minimum charge currents are not less than the safe current of the electric motor car for detecting.3 results need to make linear programming formula value maximum.
As shown in Fig. 2 the present invention also provides a kind of electric vehicle charging device, including：
Current distribution unit, for after electric motor car enters charging pile and connects charging gun, reading the electricity of electric motor car feedback
Stream, the testing current according to the feedback goes out basic parameter, and safe charging electric current is distributed to the electric motor car according to the basic parameter；
Phase selection unit, the weight for going out each phase according to the Parameter Calculation compares three power of phase
Weight, selection has the phase of maximum weight, and closed pair is answered phase relay, started to electric motor car power transmission, if phase weights one
Sample, selection possesses the phase of average charge speed higher；In other embodiments, more specifically, the phase selection unit,
For the total current according to each phase, charge each electric motor car charging current, charge each electric motor car
Charge volume and in each electric motor car estimated charging interval charged drawn each phase weights.
Load Balance Unit, for reading current real time charging information, the electric motor car is calculated according to the charge information
Real-time dynamic optimal electric current, and export the optimal current to the electric motor car.In other embodiments, more specifically,
The charge information includes：The charging current of each electric motor car, charge each electric motor car charge volume, charged when
It is long.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (6)
1. a kind of charging pile for electric vehicle network load balancing method, it is characterised in that including step：
A, enter charging pile and after connecting charging gun in electric motor car, the electric current of electric motor car feedback is read, according to the electric current of the feedback
Basic parameter is tested out, minimum current is distributed as start secure charging current to the electric motor car according to the basic parameter；
B, Selecting phasing：Go out the weight of each phase according to the Parameter Calculation, compare three weights of phase, selection tool
There is the phase of the weight of maximum, closed pair is answered phase relay, started to electric motor car power transmission, if phase weights are the same, selection is gathered around
There is the phase of average charge speed higher；
C, load balancing：Current real time charging information is read, the real-time dynamic of the electric motor car is calculated according to the charge information
Optimal current, and export the optimal current to the electric motor car.
2. method as claimed in claim 1, it is characterised in that the weight of each phase of calculating, specifically includes：According to each
The total current of phase, charge each electric motor car charging current, charge each electric motor car charge volume and
Each phase weights is drawn in each electric motor car estimated charging interval charged.
3. method as claimed in claim 1, it is characterised in that the charge information includes：The charging current of each electric motor car,
Charge each electric motor car charge volume, charged duration.
4. a kind of electric vehicle charging device, it is characterised in that including：
Current distribution unit, for after electric motor car enters charging pile and connects charging gun, reading the electric current of electric motor car feedback,
Testing current according to the feedback goes out basic parameter, and safe charging electric current is distributed to the electric motor car according to the basic parameter；
Phase selection unit, the weight for going out each phase according to the Parameter Calculation compares three weights of phase,
Selection has the phase of maximum weight, and closed pair is answered phase relay, started to electric motor car power transmission, if phase weights are the same,
Selection possesses the phase of average charge speed higher；
Load Balance Unit, for reading current real time charging information, the reality of the electric motor car is calculated according to the charge information
When dynamic optimal electric current, and export the optimal current to the electric motor car.
5. device as claimed in claim 4, it is characterised in that the phase selection unit, for the total electricity according to each phase
Stream, charge each electric motor car charging current, charge each electric motor car charge volume and charge
Each electric motor car estimated charging interval draws each phase weights.
6. device as claimed in claim 4, it is characterised in that the charge information includes：The charging current of each electric motor car,
Charge each electric motor car charge volume, charged duration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710118074.9A CN106877431A (en) | 2017-03-01 | 2017-03-01 | Charging pile for electric vehicle network load balancing method and electric vehicle charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710118074.9A CN106877431A (en) | 2017-03-01 | 2017-03-01 | Charging pile for electric vehicle network load balancing method and electric vehicle charging device |
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| Publication Number | Publication Date |
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| CN106877431A true CN106877431A (en) | 2017-06-20 |
Family
ID=59169416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710118074.9A Pending CN106877431A (en) | 2017-03-01 | 2017-03-01 | Charging pile for electric vehicle network load balancing method and electric vehicle charging device |
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| CN111002859A (en) * | 2019-12-11 | 2020-04-14 | 深圳猛犸电动科技有限公司 | Method and device for identifying private patch board of charging pile, terminal equipment and storage medium |
| CN113370827A (en) * | 2021-07-12 | 2021-09-10 | 众源科技(广东)股份有限公司 | Intelligent switch management system and method based on urban Internet of things application |
| CN114228544A (en) * | 2021-12-24 | 2022-03-25 | 绿能慧充数字技术有限公司 | Charging pile charging module equalization distribution method and system |
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| CN102842946A (en) * | 2012-09-03 | 2012-12-26 | 北京交通大学 | Orderly electric car charging system and method for distribution transformer |
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| CN111002859A (en) * | 2019-12-11 | 2020-04-14 | 深圳猛犸电动科技有限公司 | Method and device for identifying private patch board of charging pile, terminal equipment and storage medium |
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| CN113370827A (en) * | 2021-07-12 | 2021-09-10 | 众源科技(广东)股份有限公司 | Intelligent switch management system and method based on urban Internet of things application |
| CN114228544A (en) * | 2021-12-24 | 2022-03-25 | 绿能慧充数字技术有限公司 | Charging pile charging module equalization distribution method and system |
| CN114228544B (en) * | 2021-12-24 | 2023-08-29 | 绿能慧充数字技术有限公司 | Equalizing distribution method and system for charging pile charging modules |
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