CN106218440A - The power intelligent regulation circuit of a kind of charger and method - Google Patents
The power intelligent regulation circuit of a kind of charger and method Download PDFInfo
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- CN106218440A CN106218440A CN201610870761.1A CN201610870761A CN106218440A CN 106218440 A CN106218440 A CN 106218440A CN 201610870761 A CN201610870761 A CN 201610870761A CN 106218440 A CN106218440 A CN 106218440A
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- power
- electric automobile
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- charger
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Classifications
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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
- B60L53/60—Monitoring or controlling charging stations
-
- 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
Abstract
The invention discloses a kind of power intelligent regulation circuit and the method for charger, first calculate electric automobile state-of-charge SOC and electric automobile load, draw load curve；By drawing the load curve with many electric automobiles of type, it is judged that whether load curve restrains, if load curve is restrained, output load curve, if not restraining, repeats aforesaid operations；The peak power output of whole charging station is determined according to described electric automobile load curve, each terminal charge equipment uses analytic hierarchy process (AHP) to set up decision model according to the state-of-charge SOC of electric automobile, charging process is divided into energy supplement stage, power keep stage and small area analysis supplemental stages three phases, dynamically distributes the power of each charge port.Charging electric vehicle load is effectively predicted by the present invention, makes full use of charger and realizes charging in order controls, ensures that electric automobile is flexible, quick charge, takes into account region load monitoring simultaneously.
Description
Technical field
The invention belongs to electric automobile field, be specifically related to the power intelligent control method of a kind of charger.
Background technology
Electric automobile refers to, with accumulator, fuel cell or super capacitor as power source, completely or partially be driven by motor
Dynamic automobile, is electrified and the fusion product of automobile.Electric automobile can be broadly divided into following three kinds in a broad sense, i.e. mixes
Power electric automobile, FC-EV and pure electric automobile.Mixed power electric car refer on car equipped with two with
Upper power source (such as accumulator, fuel cell, internal combustion engine etc.), includes motor and drives, meet the vapour of law on road traffic safety rule
Car.Be used widely at present be plug-in hybrid electric vehicle fully charged after can travel with battery driving electric machine, vehicle-mounted
After the electricity of battery is finished, on-board engine consumes petroleum and drives electrical power generators is battery charging, is continuing with battery and drives
Motor travels.The pure electronic mileage of mixed power electric car is shorter, does not break away from the dependence to petroleum resources, is electric automobile
A kind of transition vehicle during industry development.The feature of FC-EV is: the energy source of its electrokinetic cell in
The chemical energy that fuel and oxidant are produced by electrochemical means, the electrochemical reaction process of fuel cell will not produce nuisance
Matter, and there is higher energy conversion efficiency.Pure electric automobile be completely by rechargeable battery (such as lead-acid battery, nickel-cadmium cell, nickel
Hydrogen battery, lithium ion battery etc.) as the automobile of power source.It provides electrical energy drive motor to travel by battery to motor,
It is a kind of " zero-emission " automobile, it is believed that be the current optimal vehicles.
Electric automobile is at energy-saving and emission-reduction, containment climate warming and ensures that the oil supply aspect such as safely has orthodox car
Incomparable advantage, receives the extensive concern of national governments, car manufactures and energy enterprise.The battery day by day promoted
Equipment, charging technique and electrically-charging equipment also promote that electric automobile is constantly popularized.Research shows, under medium development speed, extremely
2020,2030 and the year two thousand fifty, electric automobile accounts for the ratio of american car total amount will respectively reach 35%, 51% and 62%.China
Also formulate the development plan of suitable for China, advanced electric vehicle industrialization process, improve car net (electrical network) fusion degree.2014
Since Nian, State Council and relevant ministries and commissions put into effect " instruction about accelerating new-energy automobile popularization and application ", " about accelerating electricity
Electrical automobile charging infrastructure construction instruction " etc. multinomial incentive policy, clearly accelerate electrically-charging equipment construction, charge
Facilities Construction is rewarded.By in May, 2016, country and place are put into effect new-energy automobile related excitation policy 183 altogether, are effectively pushed away
Electric automobile and the development of charging and conversion electric industry are moved.Under the strength of policy promotes, the production and marketing of China's new-energy automobile in recent years
Measure in explosive growing trend.According to State Statistics Bureau's data statistics, May, new-energy automobile yield was 5.4 ten thousand, increased by a year-on-year basis
92.9%.Accumulative aspect, 1-5 month new-energy automobile yield is 21.9 ten thousand, increases by 88.8% on a year-on-year basis.
Electric automobile large-scale use, charging load accesses electrical network, by planning, operation and electric power city to power system
The operation of field produces profound influence.Owing to being affected by factors, charging load has complex characteristics.For single car,
It is mainly determined by user's trip requirements, is affected by factors such as user's use habit, device characteristics simultaneously.With regard to region electric power
For system, it is also affected by electric automobile quantity size, electrically-charging equipment degree of perfection.Due to user's request and user's row
For uncertainty and mutual difference, charging load has certain randomness, dispersibility.The load that charging load causes increases
Add, by power system is sent out, defeated, distribution capacity higher demand is proposed；Charging load is affecting losses of distribution network and voltage
While level, also power distribution network threephase load balance, distribution transformer life-span can be produced impact, also can cause distribution network load
The locally problem such as overload；Owing to the existence of charging harmonic wave also can affect distribution network electric energy quality.In terms of Electricity Market Operation, electricity
Electrical automobile, electric automobile aggregator will become new market participant, participate in market price bidding and the offer of assistant service；Electricity
The astronomical number of electrical automobile and dispersing characteristic so that market operation mechanism is changed to distributing by centralized.Answering of dispersal mechanism
Miscellaneous stability of power market runs also becomes a problem merited attention.The energy storage capacity of battery makes user select in the charging interval
Selecting and have certain motility, charging load has certain controllability.Initial research shows, appropriate charging controls not only
Can suppress, eliminate the electric automobile adverse effect to electrical network, and can support operation of power networks, the benefit of load scheduling is preliminary
Manifest.The proposition of particularly V2G (vehicle-to-grid) technology makes to utilize within the average free time of up to 96%
Electric automobile energy storage resource, adjusts charge and discharge process, promotes that renewable energy power receives, provides assistant service for electrical network.
Therefore, it is necessary to grasp power demand and the energy requirement characteristics of charging electric vehicle, research is in time and space
In two dimensions, charging electric vehicle load is effectively predicted, provide foundation for charging electric vehicle distribution management.
Summary of the invention
Goal of the invention: in order to solve asking of many different capacity charging electric vehicle distribution managements of prior art existence
Topic, the present invention provides the power intelligent control method of a kind of charger.
It is a further object of the present invention to provide the power intelligent regulation circuit of a kind of charger.
Technical scheme: the power intelligent control method of a kind of charger, comprises the following steps:
(1) extract the initiation of charge time of electric automobile, according to initiation of charge Time Calculation charging duration, extract electronic vapour
Car daily travel, calculates electric automobile state-of-charge SOC, calculates electric automobile load based on Monte Carlo method, draws load
Curve；
(2) load curve with many electric automobiles of type is drawn according to step (1), it is judged that whether load curve restrains,
If load curve is restrained, output load curve, if not restraining, repetitive operation step (1)；
(3) determine the peak power output of whole charging station according to described electric automobile load curve, each terminal charge sets
The standby state-of-charge SOC according to electric automobile uses analytic hierarchy process (AHP) to set up decision model, and this decision model includes charging process
In the energy supplement stage, power keep stage and small area analysis supplemental stages, three phases dynamically distributes the power of each charge port.
The power intelligent regulation circuit of a kind of charger, it is characterised in that include decision model module, charger merit
Rate regulation major loop and power configuration control loop, described decision model module include the energy supplement stage in charging process,
Power keeps stage and small area analysis supplemental stages, and three phases dynamically distributes the power of each charge port；Described charger power
Regulation major loop includes automatic change-over and charge port, the multiple charging lists that multiple charhing unit is connected with charhing unit
Connected by automatic change-over between unit；Described power configuration controls loop and includes the relay of multiple parallel connection, and relay can
Remote control is surveyed in the side remote control and two being switched to corresponding automatic change-over.
Beneficial effect: the power intelligent control method of a kind of charger that the present invention provides, solves many different merits
Rate electric automobile same space-time charge requirement problem, takes into account region load monitoring simultaneously, for effectively reducing investment outlay, charger abundant
Utilize and charging control provides foundation in order；Especially when all be in energy supplement stage and power keep the stage all with
Peak power is charged, and when having charge power more than needed to be available for distribution, distributes merit for being in the electric automobile of small area analysis supplemental stages
Rate thus when the charging of many different capacity electric automobile same space-times reasonable distribution charge power multiple electronic to meet simultaneously
The charging operation of Efficient automobile rate.Charging electric vehicle load is effectively predicted by time and two, space dimension, side
Just distribution management is carried out for charging electric vehicle.
The power intelligent regulation circuit of a kind of charger that the present invention provides is by charger power adjustments major loop
With the design that power configuration controls loop, the power of different vehicle charging is carried out reasonable distribution, makes full use of charger, ensure
Electric automobile is flexible, quick charge.
Accompanying drawing explanation
Fig. 1 is the flow chart calculating charging electric vehicle load based on Monte Carlo method；
Fig. 2 is charger power adjustments major loop schematic diagram；
Fig. 3 is that power configuration controls circuit diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention, the present invention will be further described.
The power intelligent control method of this charger comprises the following steps:
(1) as it is shown in figure 1, extract the initiation of charge time of electric automobile, according to initiation of charge Time Calculation charging duration,
Extraction electric automobile daily travel, calculates electric automobile state-of-charge SOC, calculates electric automobile based on Monte Carlo method and bears
Lotus, draws load curve.
(2) load curve with many electric automobiles of type is drawn according to step (1), it is judged that whether load curve restrains,
If load curve is restrained, output load curve, if not restraining, repetitive operation step (1).
(3) determine the peak power output of whole charging station according to described electric automobile load curve, each terminal charge sets
The standby state-of-charge SOC according to electric automobile uses analytic hierarchy process (AHP) to set up decision model, and this decision model includes charging process
In the energy supplement stage, power keep stage and small area analysis supplemental stages, three phases dynamically distributes the power of each charge port.
When SOC≤90%, for the energy supplement stage, this stage belongs to the energy supply stage, is set to limit priority；
When 90%≤SOC≤98%, keep the stage for power, with holding charging load power regulating power as target,
The electric automobile being in the energy supplement stage all charges with peak power, and charge power more than needed can be with Intelligent adjustment, for being in
Power keeps the electric automobile distribution power in stage, is set to medium priority；
When 98%≤SOC≤100%, for small area analysis supplemental stages, this stage is latter stage of charging, and is electronic with small-power
Vehicle charging, when all energy supplement stage and power of being in keep the stage all to charge with peak power, and has charging merit more than needed
When rate is available for distribution, distribute power for being in the electric automobile of small area analysis supplemental stages.It is set to lowest priority.
As a example by double charge port chargers that existing market demand is bigger, including decision model module, charger
Power adjustments major loop and power configuration control loop, and described decision model module includes the energy supplement rank in charging process
Section, power keep stage and small area analysis supplemental stages, and three phases dynamically distributes the power of each charge port；As in figure 2 it is shown, it is described
Charger power adjustments major loop include automatic change-over that multiple charhing unit is connected with charhing unit and two fill
Electricity mouth, is connected by automatic change-over between multiple charhing units；Include as it is shown on figure 3, described power configuration controls loop
The relay of multiple parallel connections, relay switches to the side remote control and two of corresponding automatic change-over and surveys remote control, also includes control
Make the main switch of multiple relay.
The present invention can solve the problem that many different capacity electric automobiles charge simultaneously, can make full use of charger real
The charging of existing sequence controls, and guarantee electric automobile is flexible, quick charge, takes into account region load monitoring simultaneously.
Claims (5)
1. the power intelligent control method of a charger, it is characterised in that comprise the following steps:
(1) extract the initiation of charge time of electric automobile, according to initiation of charge Time Calculation charging duration, extract electric automobile day
Distance travelled, calculates electric automobile state-of-charge SOC, calculates electric automobile load based on Monte Carlo method, draws load curve；
(2) load curve with many electric automobiles of type is drawn according to step (1), it is judged that whether load curve restrains, if negative
Lotus curve convergence then output load curve, if not restraining, repetitive operation step (1)；
(3) peak power output of whole charging station, each terminal charge equipment root is determined according to described electric automobile load curve
Using analytic hierarchy process (AHP) to set up decision model according to the state-of-charge SOC of electric automobile, this decision model includes in charging process
Energy supplement stage, power keep stage and small area analysis supplemental stages, and three phases dynamically distributes the power of each charge port.
The power intelligent control method of charger the most according to claim 1, it is characterised in that in described step (3)
The three phases of charging process specifically includes:
When SOC≤90%, for the energy supplement stage, it is set to limit priority；
When 90%≤SOC≤98%, keep the stage for power, be set to medium priority；
When 98%≤SOC≤100%, for small area analysis supplemental stages, it is set to lowest priority.
The power intelligent control method of charger the most according to claim 2, it is characterised in that first for energy supplement
The charging electric vehicle in stage；When all electric automobiles being in the energy supplement stage all charge with peak power, and there is richness
When remaining charge power is available for distribution, keep the electric automobile distribution power in stage for being in power；It is in energy supplement when all
Stage and power keep the stage all to charge with peak power, and when existence charge power more than needed is available for distribution, for being in small area analysis
The electric automobile distribution power of supplemental stages.
4. the power intelligent regulation circuit of a charger, it is characterised in that include decision model module, charger power
Regulation major loop and power configuration control loop, and described decision model module includes the energy supplement stage in charging process, merit
Rate keeps stage and small area analysis supplemental stages, and three phases dynamically distributes the power of each charge port；Described charger power is adjusted
Joint major loop includes automatic change-over and charge port, the multiple charhing units that multiple charhing unit is connected with charhing unit
Between connected by automatic change-over；Described power configuration controls loop and includes the relay of multiple parallel connection, and relay can be cut
Remote control is surveyed in the side remote control and two changing to corresponding automatic change-over.
The power intelligent regulation circuit of charger the most according to claim 4, it is characterised in that also include controlling multiple
The main switch of relay.
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| CN201610870761.1A CN106218440B (en) | 2016-09-30 | 2016-09-30 | A kind of power intelligent of charging equipment adjusts circuit and method |
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| CN201610870761.1A CN106218440B (en) | 2016-09-30 | 2016-09-30 | A kind of power intelligent of charging equipment adjusts circuit and method |
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| CN108736543A (en) * | 2018-06-01 | 2018-11-02 | 南京理工大学 | A kind of DC charging plant capacity module switching at runtime system and method |
| CN109572454A (en) * | 2018-10-17 | 2019-04-05 | 国网浙江省电力有限公司杭州供电公司 | A kind of electric car Intelligent charging station charging system |
| CN110015192A (en) * | 2017-09-11 | 2019-07-16 | 郑州宇通客车股份有限公司 | A kind of fuel cell hybrid system, power supply unit and charge control method |
| CN110843559A (en) * | 2018-08-20 | 2020-02-28 | 现代自动车株式会社 | Electric vehicle reservation charging system and method |
| CN111027842A (en) * | 2019-12-04 | 2020-04-17 | 清华大学 | Electric vehicle charging and new energy power generation cooperative scheduling method and device |
| CN112366739A (en) * | 2020-11-03 | 2021-02-12 | 国网河北省电力有限公司衡水供电分公司 | Configuration method, device and equipment of power distribution network and storage medium |
| CN113595213A (en) * | 2021-09-03 | 2021-11-02 | 康舒科技股份有限公司 | Power distribution device |
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| CN106218440B (en) | 2018-05-04 |
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