CN106218440B - A kind of power intelligent of charging equipment adjusts circuit and method - Google Patents
A kind of power intelligent of charging equipment adjusts circuit and method Download PDFInfo
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- CN106218440B CN106218440B CN201610870761.1A CN201610870761A CN106218440B CN 106218440 B CN106218440 B CN 106218440B CN 201610870761 A CN201610870761 A CN 201610870761A CN 106218440 B CN106218440 B CN 106218440B
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- 238000009826 distribution Methods 0.000 claims description 17
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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
A kind of power intelligent the invention discloses charging equipment adjusts circuit and method, calculates electric automobile state-of-charge SOC and electric automobile load first, draws load curve；By drawing the load curve of more electric automobiles of same type, judge whether load curve restrains, the output load curve if load curve is restrained, if not restraining repeatedly aforesaid operations；The peak power output of whole charging station is determined according to the electric automobile load curve, each terminal charge equipment establishes decision model according to the state-of-charge SOC of electric automobile using analytic hierarchy process (AHP), charging process is divided into the energy supplement stage, power keeps stage and low current supplemental stages three phases, the power of each charge port of dynamically distributes.The present invention effectively predicts electric automobile charging load, makes full use of charger to realize orderly charge control, guarantee electric automobile is flexible, quick charge, while takes into account region load monitoring.
Description
Technical field
The invention belongs to electric automobile field, and in particular to a kind of power intelligent adjusting method of charging equipment.
Background technology
Electric automobile refers to using storage battery, fuel cell or super capacitor as power source, all or part of to be driven by motor
Dynamic automobile, is electrified and automobile fusion product.Electric automobile can be broadly divided into following three kinds in a broad sense, that is, mix
Power electric automobile, fuel cell electric vehicle and pure electric automobile.Mixed power electric car refer on car equipped with two with
Upper power source (such as storage battery, fuel cell, internal combustion engine), includes motor driving, meets the vapour of law on road traffic safety rule
Car.Be used widely at present be plug-in hybrid electric vehicle it is fully charged after can with battery drive motor traveling, vehicle-mounted
After the electricity of battery is finished, on-board engine, which consumes petroleum, drives electrical power generators to charge for battery, is continuing with battery power
Motor travels.Mixed power electric car pure electric vehicle mileage is shorter, does not break away from the dependence to petroleum resources, is electric automobile
A kind of transition vehicle during industry development.The characteristics of fuel cell electric vehicle is：The energy source of its power battery 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 is completely by rechargeable battery (such as lead-acid battery, nickel-cadmium cell, nickel
Hydrogen battery, lithium ion battery etc.) automobile as power source.It provides electrical energy drive motor to motor by battery and travels,
It is a kind of " zero-emission " automobile, it is believed that be the current optimal vehicles.
Electric automobile is in energy-saving and emission-reduction, containment climate warming and ensures that oil supply safety etc. has orthodox car
Incomparable advantage, receives the extensive concern of national governments, car manufactures and energy enterprise.The battery increasingly lifted
Equipment, charging technique and electrically-charging equipment also promote electric automobile constantly to popularize.Research shows, under medium development speed, extremely
2020th, 2030 and the year two thousand fifty, the ratio that electric automobile accounts for american car total amount will respectively reach 35%, 51% and 62%.Also make in China
Determine the development plan of suitable for China, promoted electric vehicle industrialization process, improve car net (power grid) fusion degree.2014 with
Come, State Council and relevant ministries and commissions put into effect《The instruction promoted and applied on accelerating new-energy automobile》、《On accelerating electronic vapour
The instruction of car charging infrastructure construction》Etc. multinomial incentive policy, clearly accelerate electrically-charging equipment construction, give electrically-charging equipment
Build reward.By in May, 2016, new-energy automobile related excitation policy 183 is put into effect in country and place altogether, is effectively promoted
The development of electric automobile and charging and conversion electric industry.In the case where the strength of policy promotes, the volume of production and marketing of China's new-energy automobile is in recent years
Explosive growing trend.According to State Statistics Bureau's data statistics, May, new-energy automobile yield was 5.4 ten thousand, increased by 92.9% on a year-on-year basis.
Accumulative aspect, 1-5 month new-energy automobiles yield are 21.9 ten thousand, increase by 88.8% on a year-on-year basis.
Electric automobile large-scale use, charging load access power grid, by the planning of electric system, operation and electric power city
The operation of field produces profound influence.Due to being influenced by factors, charging load has complex characteristics.For single car,
It is mainly determined by user's trip requirements, while is influenced be subject to factors such as user's use habit, device characteristics.With regard to region electric power
For system, it is also influenced be subject to electric automobile quantity size, electrically-charging equipment degree of perfection.Due to user demand and user's row
For it is uncertain with mutual difference, charging load has certain randomness, dispersiveness.The load caused by load that charges increases
Add, the demand of higher will be proposed to the sending out of electric system, defeated, distribution capacity；The load that charges is influencing losses of distribution network and voltage
While horizontal, power distribution network threephase load balance, distribution transformer service life can also be had an impact, can also trigger distribution network load
The problems such as local overload；Since the presence for the harmonic wave that charges can also influence distribution network electric energy quality.In terms of Electricity Market Operation, electricity
Electrical automobile, electric automobile aggregator participate in the offer of market price bidding and assistant service by as new market participant；Electricity
The astronomical number and dispersing characteristic of electrical automobile so that market operation mechanism is changed from centralization to distributing.Dispersal mechanism is answered
The problem of miscellaneous stability of power market operation also merits attention as one.The energy storage capacity of battery causes user to be selected in the charging interval
Selecting has certain flexibility, and charging load has certain controllability.Initial research shows that appropriate charge control is not only
It can suppress, eliminate adverse effect of the electric automobile to power grid, and operation of power networks can be supported, the benefit of load scheduling is preliminary
Show.The it is proposed of particularly V2G (vehicle-to-grid) technology within free time of the mean height up to 96% so that can utilize
Electric automobile energy storage resource, adjusts charge and discharge process, promotes renewable energy power to receive, assistant service is provided for power grid.
Therefore, it is necessary to grasp the power demand and energy requirement characteristics of electric automobile charging, study in time and space
Electric automobile charging load is effectively predicted in two dimensions, foundation is provided for electric automobile charge profile management.
The content of the invention
Goal of the invention：In order to solve asking for more different capacity electric automobile charge profile management existing in the prior art
Topic, the present invention provide a kind of power intelligent adjusting method of charging equipment.
Technical solution：A kind of power intelligent adjusting method of charging equipment, comprises the following steps：
（1）The initiation of charge time of electric automobile is extracted, charging duration is calculated according to the initiation of charge time, extracts 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）According to step（1）The load curve of more electric automobiles of same type is drawn, judges whether load curve restrains,
The output load curve if load curve is restrained, if not restraining repetitive operation step（1）；
（3）The peak power output of whole charging station is determined according to the electric automobile load curve, each terminal charge is set
Standby to establish decision model using analytic hierarchy process (AHP) according to the state-of-charge SOC of electric automobile, which includes charging process
In the energy supplement stage, power keep stage and low current supplemental stages, the power of each charge port of three phases dynamically distributes.
A kind of power intelligent of charging equipment adjusts circuit, it is characterised in that including decision model module, charging equipment work(
Rate adjusts major loop and power configuration control loop, the decision model module include energy supplement stage in charging process,
Power keeps stage and low current supplemental stages, the power of each charge port of three phases dynamically distributes；The charging equipment power
Adjusting major loop includes multiple charhing units, the automatic change-over being connected with charhing unit and charge port, and multiple chargings are single
Connected between member by automatic change-over；The power configuration control loop includes multiple relays in parallel, and relay can
It is switched to the side remote control and the remote control of two sides of corresponding automatic change-over.
Beneficial effect：A kind of power intelligent adjusting method of charging equipment provided by the invention, solves more different work(
The same space-time charge requirement problem of rate electric automobile, while take into account region load monitoring, effectively to reduce investment outlay, charger it is abundant
Using and in order charge control provide foundation；Especially when it is all in energy supplement stage and power kept for the stage all with
Maximum power charge, and have charge power more than needed for distribution when, in low current supplemental stages electric automobile distribute work(
Rate is so that reasonable distribution charge power is multiple electronic to meet at the same time in the same space-time charging of more different capacity electric automobiles
The charging operation of Efficient automobile rate.Electric automobile charging load is effectively predicted on time and two, space dimension, side
Just distribution management is carried out for electric automobile charging.
A kind of power intelligent of charging equipment provided by the invention adjusts circuit and passes through charging equipment power adjusting major loop
With the design of power configuration control loop, reasonable distribution is carried out to the power of different vehicle charging, charger is made full use of, ensures
Electric automobile is flexible, quick charge.
Brief description of the drawings
Fig. 1 is the flow chart that electric automobile charging load is calculated based on Monte Carlo Method；
Fig. 2 is charging equipment power adjusting major loop schematic diagram；
Fig. 3 is power configuration control loop schematic diagram.
Embodiment
With reference to the accompanying drawings and detailed description, the present invention will be further described.
The power intelligent adjusting method of the charging equipment comprises the following steps：
（1）As shown in Figure 1, extracting the initiation of charge time of electric automobile, charging duration is calculated according to the initiation of charge time,
Electric automobile daily travel is extracted, calculates electric automobile state-of-charge SOC, calculating electric automobile based on Monte Carlo Method bears
Lotus, draws load curve.
（2）According to step（1）The load curve of more electric automobiles of same type is drawn, judges whether load curve restrains,
The output load curve if load curve is restrained, if not restraining repetitive operation step（1）.
（3）The peak power output of whole charging station is determined according to the electric automobile load curve, each terminal charge is set
Standby to establish decision model using analytic hierarchy process (AHP) according to the state-of-charge SOC of electric automobile, which includes charging process
In the energy supplement stage, power keep stage and low current supplemental stages, the power of each charge port of three phases dynamically distributes.
It it is the energy supplement stage, this stage belongs to the energy supply stage, is arranged to limit priority as SOC≤90%；
As 90%≤SOC≤98%, kept for the stage for power, to keep charging load power regulating power as target, place
All charged in the electric automobile in energy supplement stage with maximum power, and charge power more than needed can be adjusted intelligently, in work(
Rate keeps the electric automobile distribution power in stage, is arranged to middle priority；
It is low current supplemental stages, this stage is latter stage of charging, using small-power as electronic vapour as 98%≤SOC≤100%
Car charges, and is kept for the stage all charge with maximum power in energy supplement stage and power when all, and have charge power more than needed
During for distribution, for the electric automobile distribution power in low current supplemental stages.It is arranged to lowest priority.
By taking the larger double charge port charging equipments of existing market demand as an example, including decision model module, charging equipment
Power adjusting major loop and power configuration control loop, the decision model module include the energy supplement rank in charging process
Section, power keep stage and low current supplemental stages, the power of each charge port of three phases dynamically distributes；It is as shown in Fig. 2, described
Charging equipment power adjusting major loop is filled including multiple charhing units, the automatic change-over being connected with charhing unit and two
Power port, is connected by automatic change-over between multiple charhing units；As shown in figure 3, the power configuration control loop includes
Multiple relays in parallel, relay switch to the side remote control and the remote control of two sides of corresponding automatic change-over, further include control
Make the master switch of multiple relays.
The present invention can solve the problems, such as that more different capacity electric automobiles charge at the same time, and charger can be made full use of real
Existing sequence charge control, guarantee electric automobile is flexible, quick charge, while takes into account region load monitoring.
Claims (5)
1. the power intelligent adjusting method of a kind of charging equipment, it is characterised in that comprise the following steps：
（1）The initiation of charge time of electric automobile is extracted, charging duration is calculated according to the initiation of charge time, extracts 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）According to step（1）The load curve of more electric automobiles of same type is drawn, judges whether load curve restrains, if negative
Lotus curve convergence then output load curve, the repetitive operation step if not restraining（1）；
（3）The peak power output of whole charging station, each terminal charge equipment root are determined according to the electric automobile load curve
Decision model is established using analytic hierarchy process (AHP) according to the state-of-charge SOC of electric automobile, which is included in charging process
Energy supplement stage, power keep stage and low current supplemental stages, the power of each charge port of three phases dynamically distributes.
2. the power intelligent adjusting method of charging equipment according to claim 1, it is characterised in that the step（3）In
The three phases of charging process specifically include：
As SOC≤90%, it is the energy supplement stage, is arranged to limit priority；
As 90%≤SOC≤98%, kept for the stage for power, be arranged to middle priority；
As 98%≤SOC≤100%, it is low current supplemental stages, is arranged to lowest priority.
3. the power intelligent adjusting method of charging equipment according to claim 2, it is characterised in that be first energy supplement
The electric automobile charging in stage；When all electric automobiles in the energy supplement stage are all charged with maximum power, and exist rich
When remaining charge power is for distribution, to keep the electric automobile distribution power in stage in power；Energy supplement is in when all
Stage and power are kept for the stage all charge with maximum power, and when there is charge power more than needed for distribution, in low current
The electric automobile distribution power of supplemental stages.
4. a kind of power intelligent of charging equipment adjusts circuit, it is characterised in that including decision model module, charging equipment power
Major loop and power configuration control loop are adjusted, the decision model module includes the energy supplement stage in charging process, work(
Rate keeps stage and low current supplemental stages, the power of each charge port of three phases dynamically distributes；The charging equipment power tune
Section major loop includes multiple charhing units, the automatic change-over being connected with charhing unit and charge port, multiple charhing units
Between connected by automatic change-over；The power configuration control loop includes multiple relays in parallel, and relay can be cut
Change to the side remote control and the remote control of two sides of corresponding automatic change-over.
5. the power intelligent of charging equipment according to claim 4 adjusts circuit, it is characterised in that it is multiple to further include control
The master switch of relay.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110015192B (en) * | 2017-09-11 | 2021-03-02 | 郑州宇通客车股份有限公司 | Fuel cell hybrid power system, power supply unit and charging control method |
| 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 |
| KR102621905B1 (en) * | 2018-08-20 | 2024-01-05 | 현대자동차주식회사 | System and Method for reservation charge of electric vehicle |
| CN109572454B (en) * | 2018-10-17 | 2021-04-06 | 国网浙江省电力有限公司杭州供电公司 | Charging system of intelligent charging station for electric automobile |
| CN111027842B (en) * | 2019-12-04 | 2022-04-12 | 清华大学 | Electric vehicle charging and new energy power generation cooperative scheduling method and device |
| CN112366739B (en) * | 2020-11-03 | 2022-08-19 | 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 |
| CN113595213B (en) * | 2021-09-03 | 2023-10-31 | 康舒科技股份有限公司 | power distribution device |
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| WO2012058421A2 (en) * | 2010-10-27 | 2012-05-03 | Aes Corporation | Methods, adapters, and apparatus for use with electric devices to manage energy services |
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| CN102708425A (en) * | 2012-06-29 | 2012-10-03 | 山东电力集团公司电力科学研究院 | Coordination control system and method for electric vehicle service network based on Multi-Agent system |
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