CN106451587A - Energy driving type charging system and management method - Google Patents

Energy driving type charging system and management method Download PDF

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Publication number
CN106451587A
CN106451587A CN201610509354.8A CN201610509354A CN106451587A CN 106451587 A CN106451587 A CN 106451587A CN 201610509354 A CN201610509354 A CN 201610509354A CN 106451587 A CN106451587 A CN 106451587A
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CN
China
Prior art keywords
energy
electric
charging
driven
discharge
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CN201610509354.8A
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Chinese (zh)
Inventor
李洪峰
连湛伟
徐鹏
陈志刚
周山虎
胡道栋
郭葳
吕学平
谢海彪
马永亮
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许继电气股份有限公司
许昌许继软件技术有限公司
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Priority to CN201610509354.8A priority Critical patent/CN106451587A/en
Publication of CN106451587A publication Critical patent/CN106451587A/en

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Classifications

    • 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
    • H02J7/0027—Stations for charging mobile units, e.g. of electric vehicles, of mobile telephones
    • 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—BASIC 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
    • H—ELECTRICITY
    • H01—BASIC 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
    • 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

Abstract

The invention relates to an energy driving type charging system and management method, and belongs to the technical field of charge and discharge of an electromobile. An end, station and cloud three-layer architecture is adopted and comprises a charge service platform serving as a cloud layer, a charge control terminal serving as a station layer and an energy driving type power generation unit, an electrical energy converter and a power distribution network which serve as an end layer, wherein all layers are in communication connection, the charge service platform is used for making a corresponding charge-discharge plan according to the charge-discharge demand of an electromobile user and issuing the charge-discharge plan to the charge control terminal, and the charge control terminal is used for synergically controlling a charge-discharge strategy of the electromobile according to the charge-discharge plan provided by the charge service platform and a power generation parameter of the energy driving type power generation unit so that the electromobile use electrical energy of the energy driving type power generation unit as much as possible. By the system, the coordination work among the energy driving type power generation unit, the power distribution network and the electromobile is achieved, and smooth execution of the electromobile during the charging process is ensured.

Description

A kind of driven by energy type charging system and management method

Technical field

The present invention relates to a kind of driven by energy type charging system and management method, belong to electric automobile charging and conversion electric technology neck Domain.

Background technology

Widely popularize the Important Action that New-energy electric vehicle is energy-saving and emission-reduction, be also to realize green traffic sustainable development One of important means.When substantial amounts of electric automobile all carries out quick charge, need with reference to the practical operation situation of electrical network and outer The actual motion state of portion's other system, is reasonably arranged to the charging process of electric automobile and is managed, can be lifted electronic Automobile charging flexibility and guarantee network optimization operation characteristic are thus improve the energy efficiency management of user side.In order to ensure a large amount of electricity Electrical automobile quick charge safe and orderly, electric automobile fills soon to need to obtain and includes charging electricity price, power limit, charging plan Deng complicated external information.Simultaneously need to the information such as comprehensive analysis electric automobile, electrokinetic cell, automobile user, formulate and close The needs to meet the safe and orderly charging of electric automobile for the charging strategy of reason, also lack at present and quickly fill for a large amount of electric automobiles Effectively control during electricity application

Content of the invention

It is an object of the invention to provide a kind of driven by energy type charging system and management method, to realize to electric automobile Quick charge process coordinates management control.

The present invention provides a kind of driven by energy type charging system for solving above-mentioned technical problem, and this charging system adopts Hold, stand, cloud three-tier architecture, including as cloud layer charging service platform, as station layer charge control terminal and as end layer Driven by energy type generator unit, energy converter and power distribution network, communicate to connect between each layer, driven by energy type generator unit and Power distribution network is used for connecting electric automobile by energy converter, and described charging service platform is used for according to automobile user Charge-discharge power demand is formulated corresponding discharge and recharge plan and is handed down to charge control terminal, and described charge control terminal is used for basis The discharge and recharge plan that charging service platform provides and the generating parameter coordination of driven by energy type generator unit control electric automobile Discharge and recharge strategy, makes electric automobile as far as possible using the electric energy of driven by energy type generator unit.

The discharge and recharge strategy that described charge control terminal adopts is as follows：When there is no charging electric vehicle, by driven by energy The electric energy that type generator unit sends all accesses power distribution network by energy converter；When have charging electric vehicle and driven by energy type When generator unit does not generate electricity, power distribution network is charging electric vehicle by energy converter；When charging electric vehicle and driven by energy When the power of type generator unit output is more than charging electric vehicle power, the electric energy that driven by energy type generator unit is sent provides To charging electric vehicle, and unnecessary electric energy is passed to power distribution network through energy converter；When the charging electric vehicle energy When the power output of driving generator unit is less than the charge power of electric automobile, the electricity that driven by energy type generator unit is sent Electric automobile can be all supplied to, not enough part is provided by energy converter by power distribution network.

Described discharge and recharge strategy also includes, when electric automobile has electric discharge demand, driven by energy type generator unit being sent The electric energy of electric energy and electric automobile electric discharge passes to power distribution network by energy converter.

Between described charging service platform and charge control terminal, between charge control terminal and energy converter, charge Request/response communication mechanism is taken between control terminal and electric automobile；Driven by energy type generator unit and charge control terminal Between take publish/subscribe communication mechanism.

Described charge control terminal passes through fieldbus and driven by energy type generator unit, electric automobile, energy converter Communication connection, by wire/wireless ether net mode and charging service Platform communication.

Described driven by energy type generator unit adopts photovoltaic generating system.

The charge-discharge power demand that described charging service platform obtains is that automobile user is passed through network and put down to charging service Platform is submitted to, and the estimated charging interval that charging service platform sets according to automobile user and the establishment of target state-of-charge are accordingly Discharge and recharge plan.

Present invention also offers a kind of driven by energy type charging management method, the step of this management method is as follows：

1) charge-discharge power demand according to automobile user formulates corresponding discharge and recharge plan；

2) the generating parameter of Real-time Collection driven by energy type generator unit, electric automobile BMS information and energy converter Parameter；

3) parameter coordination according to the discharge and recharge plan formulated and Real-time Collection controls the discharge and recharge strategy of electric automobile, makes Electric automobile is as far as possible using the electric energy of driven by energy type generator unit.

Step 3) in using discharge and recharge strategy be：

When not having charging electric vehicle, the electric energy that driven by energy type generator unit is sent is whole by energy converter Access power distribution network；When having charging electric vehicle and driven by energy type generator unit does not generate electricity, power distribution network passes through energy converter For charging electric vehicle；When the power of charging electric vehicle and the output of driven by energy type generator unit is more than charging electric vehicle work( During rate, the electric energy that driven by energy type generator unit is sent is supplied to charging electric vehicle, and by unnecessary electric energy through electric energy Converter passes to power distribution network；When the power output of charging electric vehicle driven by energy type generator unit is less than electric automobile During charge power, the electric energy that driven by energy type generator unit is sent all is supplied to electric automobile, and not enough part is by distribution Netcom crosses energy converter and provides.

Described discharge and recharge strategy also includes, when electric automobile has electric discharge demand, driven by energy type generator unit being sent Electric energy and electric automobile electric discharge electric energy power distribution network is passed to by energy converter.

The invention has the beneficial effects as follows:The present invention adopt end, stand, cloud three-tier architecture, including the charging service as cloud layer Platform, the charge control terminal as station layer and the driven by energy type generator unit as end layer, energy converter and power distribution network, Communicate to connect between each layer, the charge-discharge power demand that charging service platform is used for according to automobile user formulates corresponding discharge and recharge Plan and be handed down to charge control terminal, the discharge and recharge plan being provided according to charging service platform by charge control terminal and the energy The generating parameter coordination of driving generator unit controls the discharge and recharge strategy of electric automobile, makes electric automobile as far as possible using energy The electric energy of the driving generator unit in source.Present invention achieves driven by energy type generator unit, power distribution network and electric automobile three it Between co-ordination it is ensured that the smooth execution of charging electric vehicle process.Present invention accomplishes electric vehicle rapid charging should With demand, reduce the impact charged to power distribution network, reduce user's charging cost, suitable electric automobile city charging station, cell, The Charge Management in the places such as unit parking lot.

Brief description

Fig. 1 is the general structure schematic diagram of driven by energy type charging system of the present invention；

Fig. 2 is the workflow diagram of driven by energy type charging system management method of the present invention.

Specific embodiment

Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described further.

A kind of embodiment of the driven by energy type charging system of the present invention

This charging system as shown in figure 1, using end, stand, cloud three-tier architecture, including the charging service platform as cloud layer 101st, as the charge control terminal 111 of station layer, the photovoltaic generating system 121 as end layer, energy converter 122 and power distribution network 124, photovoltaic generating system 121 and power distribution network 124 are used for connecting electric automobile by energy converter 122, by energy converter It is responsible for photovoltaic generating system to power distribution network, the energy conversion of electric automobile to power distribution network.Charge control terminal 111 is responsible for completing With photovoltaic generating system 121, electric automobile 123, driven by energy type energy converter 122 real-time Communication for Power, to electric automobile charge and discharge Electric process carry out Real-time Decision and coordinate control, realize photovoltaic generating system 121, power distribution network 124, electric automobile 123 three it Between co-ordination it is ensured that the smooth execution of charging electric vehicle process.The present invention meets the application of electric vehicle rapid charging Demand, reduces the impact charged to power distribution network, reduces user's charging cost, suitable electric automobile is in city charging station, cell, list The Charge Management in the places such as position parking lot.

Between charging service platform and charge control terminal, between charge control terminal and energy converter, charge control Request/response communication mechanism is taken between terminal and electric automobile；Take between photovoltaic generating system and charge control terminal and send out Cloth/subscription communication mechanism.Charge control terminal passes through the fieldbus such as CAN and photovoltaic generating system, electric automobile, electric energy conversion Device communicates；Charge control terminal is communicated with driven by energy type charging platform by wire/wireless ether net mode；Photovoltaic generation system System and electric automobile complete the conversion of energy by energy converter.The coordination system between each layer is as follows：Charge control terminal For completing and photovoltaic generating system, electric automobile and energy converter real-time Communication for Power, coordinate to control photovoltaic generating system and join Power grid energy exports it is ensured that electric automobile is as far as possible using the electric energy of photovoltaic generating system.When electric automobile has electric discharge demand When, coordinate driven by energy type energy converter and discharge to power distribution network；When electric automobile does not have charge-discharge power demand, photovoltaic generation system The rich electric energy of system output directly exports power distribution network by driven by energy type energy converter；Many electric automobile charge and discharges simultaneously In the case of electricity, the electric energy of photovoltaic generating system output is insufficient for the demand that many cars charge, and needs to coordinate power distribution network output one Part electric energy is ensureing the energy requirement of many charging electric vehicles.Charge control terminal is needed by the friendship that communicated with vehicle BMS Mutually, Real-time Collection Vehicular charging energy information, and pass through electric automobile orderly management of charging and discharging policy co-ordination photovoltaic generating system Output energy and power distribution network export energy, realize during the discharge and recharge simultaneously of many cars it is ensured that the charge-discharge power demand of many electric automobiles, Complete discharge and recharge optimal power allocation.

The charge-discharge power demand proposing according to automobile user is responsible for by charging service platform, formulates corresponding user's discharge and recharge Plan, automobile user utilizes mobile phone A PP or network access, proposes electric automobile charge-discharge power demand.Charging service platform Estimated charging interval of being set according to charge user, the parameter such as target state-of-charge (SOC), work out corresponding discharge and recharge plan, It is handed down to driven by energy type charge control terminal.Its function includes：1) combine automobile user demand, formulate and issue charge and discharge Electricity plan；2) issue charging electric vehicle power limitation information；3) issue electricity price information.

Charge control terminal obtains user's discharge and recharge plan information, the function bag of charge control terminal from charging service platform Include：1) the charging plan of charging service platform offer is provided；2) formulate most suitable charging scheme.

Energy converter is used for being responsible for photovoltaic generating system to power distribution network, and electric automobile to distribution network energy is changed.Fill The discharge and recharge coordination control strategy that electric control terminal is adopted has three kinds of mode of operations.The first mode of operation is that do not have electronic vapour In the case that car charges, the electric energy that photovoltaic generating system sends all accesses power distribution network, electronic vapour by driven by energy converter Car is not involved in work.Second mode of operation is that have charging electric vehicle, and electric automobile can be as energy storage device, with power distribution network Coordinate, jointly stabilize the instable energy of photovoltaic generating system, the situation that night or overcast and rainy photovoltaic generating system do not generate electricity Under, electric automobile power battery is directly and power distribution network carries out energy exchange, is charged beneficial to night paddy electricity, daytime peak of power consumption Discharged, played the effect of " peak load shifting ".The third mode of operation is electric energy when photovoltaic generating system sends and electronic When automobile power cell charges, and the power of photovoltaic generating system output is more than power battery charging power, now photovoltaic generation The electric energy of system conversion is supplied to power battery charging, and unnecessary electric energy passes to electrical network through driven by energy converter；When The power output of photovoltaic generating system is less than the charge power of electrokinetic cell, and the electric energy of now photovoltaic generating system conversion all carries It is powered battery to charge, not enough part is then provided by power distribution network.When the load of power distribution network is too high, photovoltaic generation can be taken The electric energy that system sends, electric automobile power battery electric discharge simultaneously, now the two transmits electric energy to power distribution network simultaneously.

The course of work of this charging system is as shown in Fig. 2 comprise the following steps that：

1) automobile user, by modes such as mobile phone A PP/ online, charge-discharge power demand is submitted to driven by energy type and is charged Service platform；

2) charging service platform receives the charge-discharge power demand of automobile user submission, works out corresponding discharge and recharge plan, And it is handed down to driven by energy type charge and discharge control terminal；

3) charge and discharge control terminal pass through Real-time Collection photovoltaic generating system generating parameter, electric automobile BMS relevant information, Driven by energy type energy converter parameter, the charge-discharge power demand plan sending with reference to driven by energy type charging service platform, according to The interactive discharge and recharge strategy coordinated and algorithm, the optimized charge-discharge parameter of setting is handed down to driven by energy type discharge and recharge electric energy and turns Parallel operation；

4) energy converter distributes to electric automobile using optimized charge-discharge electric power, and completing electric automobile discharge and recharge needs Ask.

A kind of embodiment of the driven by energy type charging management method of the present invention

The driven by energy type charging management method of the present invention is to be sent out using photovoltaic generating system as far as possible with electric automobile Electricity be target, by setting up object function, needed with charging electric vehicle overall power bound and charging system integral energy Ask as constraints.Estimated charging interval that the method sets according to automobile user and target state-of-charge are formulated corresponding Discharge and recharge plan；The generating parameter of Real-time Collection driven by energy type generator unit, electric automobile BMS information and energy converter Parameter；Parameter coordination according to the discharge and recharge plan formulated and Real-time Collection controls the discharge and recharge strategy of electric automobile, makes electronic Automobile is as far as possible using the electric energy of driven by energy type generator unit.

Specific control strategy has three kinds of mode of operations, and the first mode of operation is the situation not having charging electric vehicle Under, the electric energy that photovoltaic generating system sends all accesses power distribution network by driven by energy converter, and electric automobile is not involved in work.

s.t.{-Pwk＜ ＜ pGk-p1k＜ ＜ 0 }

pGkPlan for normal power supplies is exerted oneself, and in k-th period power distribution network of expression, normal power supplies totally exerts oneself；pwkFor The predicted value of photovoltaic power, represents that k-th period is accessed photovoltaic and totally exert oneself；p1kFor predicted load, represent that k-th period joins Total load in electrical network；Δ t is calculation interval length；M is calculation interval quantity.

Second mode of operation is that have charging electric vehicle, and electric automobile can be coordinated with power distribution network as energy storage device, Jointly stabilize the instable energy of photovoltaic generating system, in the case that night or overcast and rainy photovoltaic generating system do not generate electricity, electricity Electrical automobile electrokinetic cell is directly and power distribution network carries out energy exchange, is charged beneficial to night paddy electricity, daytime, peak of power consumption was carried out Electric discharge, plays the effect of " peak load shifting ".

s.t{PEVmink＜ ＜ pEVk＜ ＜ PEVmaxk}

s.t.{-Pwk＜ ＜ pGk-p1k-pEVk＜ ＜ 0 }

pGkPlan for normal power supplies is exerted oneself, and in k-th period power distribution network of expression, normal power supplies totally exerts oneself；PwkFor The predicted value of photovoltaic power, represents that k-th period is accessed photovoltaic and totally exert oneself；p1kFor predicted load, represent that k-th period joins Total load in electrical network；pEVkBe in period electric automobile overall power limit value, when charging electric vehicle be on the occasion of, when It is negative value E during electric automobile electric dischargeEVnFor the required electric energy total amount in n calculation interval of electric automobile；Δ t is calculation interval Length；N is calculation interval quantity；PEVmaxkRepresent the overall power upper limit of electric automobile in kth time period；PEVminkWhen representing kth The overall power lower limit of electric automobile in section.

The third mode of operation is electric energy when photovoltaic generating system sends and during electric automobile power battery charging, and light The power of photovoltaic generating system output is more than power battery charging power, and the electric energy of now photovoltaic generating system conversion is supplied to power Battery charges, and unnecessary electric energy passes to electrical network through driven by energy converter；When the power output of photovoltaic generating system is little In the charge power of electrokinetic cell, the electric energy of now photovoltaic generating system conversion is all supplied to power battery charging, deficiency Part is then provided by power distribution network.When the load of power distribution network is too high, the electric energy that photovoltaic generating system sends can be taken, simultaneously electronic Automobile power cell discharges, and now the two transmits electric energy to power distribution network simultaneously.

When the power of photovoltaic generating system output is more than power battery charging power：

s.t{PEVmink＜ ＜ pEVk＜ ＜ PEVmaxk}

s.t.{-Pwk＜ ＜ pGk-p1k-pEVk＜ ＜ 0 }

When the power output of photovoltaic generating system is less than the charge power of electrokinetic cell：

s.t{PEVmink＜ ＜ pEVk＜ ＜ PEVmaxk}

s.t.{-Pwk＜ ＜ pGk-p1k-pEVk＜ ＜ 0 }

pGkPlan for normal power supplies is exerted oneself, and in k-th period power distribution network of expression, normal power supplies totally exerts oneself；PwkFor The predicted value of photovoltaic power, represents that k-th period is accessed photovoltaic and totally exert oneself；p1kFor predicted load, represent that k-th period joins Total load in electrical network；pEVkBe in period electric automobile overall power limit value, when charging electric vehicle be on the occasion of, when It is negative value during electric automobile electric discharge；EEVnFor the required electric energy total amount in n calculation interval of electric automobile；Δ t is calculation interval Length；N is calculation interval quantity；PEVmaxkRepresent the overall power upper limit of electric automobile in kth time period；PEVminkWhen representing kth The overall power lower limit of electric automobile in section.

When the load of power distribution network is too high, the electric energy that photovoltaic generating system sends can be taken, simultaneously electric powered motor electricity Tank discharge, now the two transmits electric energy to power distribution network simultaneously.

The present invention pass through to coordinate the energy output controlling photovoltaic generating system and power distribution network it is ensured that electric automobile as far as possible Electric energy using photovoltaic generating system.When electric automobile has electric discharge demand, coordinate energy converter and discharge to power distribution network, work as electricity When electrical automobile does not have charge-discharge power demand, the rich electric energy of photovoltaic generating system output directly exports distribution by energy converter Net.By with vehicle BMS communication interaction, Real-time Collection Vehicular charging energy information, and pass through electric automobile orderly charge and discharge fulgurite Output energy and the power distribution network of reason policy co-ordination photovoltaic generating system export energy, realize during the discharge and recharge simultaneously of many cars it is ensured that many The charge-discharge power demand of electric automobile, completes discharge and recharge optimal power allocation.

Claims (10)

1. a kind of driven by energy type charging system it is characterised in that this charging system adopt end, stand, cloud three-tier architecture, including work For the charging service platform of cloud layer, the charge control terminal as station layer and the driven by energy type generator unit as end layer, electricity Energy converter and power distribution network, communicate to connect between each layer, and driven by energy type generator unit and power distribution network are used by energy converter In connecting electric automobile, described charging service platform is used for estimated charging interval and the target setting according to automobile user State-of-charge is formulated corresponding discharge and recharge plan and is handed down to charge control terminal, and described charge control terminal is used for basis and fills The discharge and recharge plan that electric service platform provides and the generating parameter coordination of driven by energy type generator unit control filling of electric automobile Electric discharge strategy, makes electric automobile as far as possible using the electric energy of driven by energy type generator unit.
2. driven by energy type charging system according to claim 1 it is characterised in that described charge control terminal adopt Discharge and recharge strategy is as follows：When not having charging electric vehicle, the electric energy that driven by energy type generator unit is sent is turned by electric energy Parallel operation all accesses power distribution network；When having charging electric vehicle and driven by energy type generator unit does not generate electricity, power distribution network passes through electricity Can converter be charging electric vehicle；When the power of charging electric vehicle and the output of driven by energy type generator unit is more than electronic vapour During car charge power, the electric energy that driven by energy type generator unit is sent is supplied to charging electric vehicle, and by unnecessary electric energy Pass to power distribution network through energy converter；When the power output of charging electric vehicle driven by energy type generator unit is less than electricity During the charge power of electrical automobile, the electric energy that driven by energy type generator unit is sent all is supplied to electric automobile, the portion of deficiency Dividing is provided by energy converter by power distribution network.
3. driven by energy type charging system according to claim 2 is it is characterised in that described discharge and recharge strategy also includes working as When electric automobile has electric discharge demand, the electric energy of the electric energy that send driven by energy type generator unit and electric automobile electric discharge passes through electricity Power distribution network can be passed to by converter.
4. driven by energy type charging system according to claim 1 is it is characterised in that described charging service platform and charging Between control terminal, between charge control terminal and energy converter, take between charge control terminal and electric automobile request/ Response communication mechanism；Publish/subscribe communication mechanism is taken between driven by energy type generator unit and charge control terminal.
5. driven by energy type charging system according to claim 1 is it is characterised in that described charge control terminal is passed through now Field bus and driven by energy type generator unit, electric automobile, energy converter communication connection, by wire/wireless Ethernet side Formula and charging service Platform communication.
6. the driven by energy type charging system according to any one of claim 1-5 is it is characterised in that the described energy drives Ejector half generator unit adopts photovoltaic generating system.
7. driven by energy type charging system according to claim 1 is it is characterised in that described charging service platform obtains Charge-discharge power demand be automobile user pass through network to charging service platform submit to, charging service platform is according to electronic vapour The estimated charging interval that automobile-used family sets and target state-of-charge work out corresponding discharge and recharge plan.
8. a kind of driven by energy type charging management method is it is characterised in that the step of this management method is as follows：
1) the estimated charging interval according to automobile user setting and target state-of-charge formulate corresponding discharge and recharge plan；
2) parameter of the generating parameter of Real-time Collection driven by energy type generator unit, electric automobile BMS information and energy converter；
3) parameter coordination according to the discharge and recharge plan formulated and Real-time Collection controls the discharge and recharge strategy of electric automobile, makes electronic Automobile is as far as possible using the electric energy of driven by energy type generator unit.
9. driven by energy type charging management method according to claim 8 is it is characterised in that step 3) in adopt discharge and recharge Strategy is：
When not having charging electric vehicle, the electric energy that driven by energy type generator unit is sent all is accessed by energy converter Power distribution network；When having charging electric vehicle and driven by energy type generator unit does not generate electricity, it is electricity that power distribution network passes through energy converter Electrical automobile charges；When the power of charging electric vehicle and the output of driven by energy type generator unit is more than charging electric vehicle power When, the electric energy that driven by energy type generator unit is sent is supplied to charging electric vehicle, and unnecessary electric energy is turned through electric energy Parallel operation passes to power distribution network；When the power output of charging electric vehicle driven by energy type generator unit is less than filling of electric automobile During electrical power, the electric energy that driven by energy type generator unit is sent all is supplied to electric automobile, and not enough part is by power distribution network There is provided by energy converter.
10. driven by energy type charging management method according to claim 9 is it is characterised in that described discharge and recharge strategy Also include the electricity of the electric energy and electric automobile electric discharge when electric automobile has electric discharge demand, sending driven by energy type generator unit Power distribution network can be passed to by energy converter.
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