CN204441900U - Charger - Google Patents
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- CN204441900U CN204441900U CN201520182618.4U CN201520182618U CN204441900U CN 204441900 U CN204441900 U CN 204441900U CN 201520182618 U CN201520182618 U CN 201520182618U CN 204441900 U CN204441900 U CN 204441900U
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 73
- 230000005611 electricity Effects 0.000 claims abstract description 54
- 230000002441 reversible effect Effects 0.000 claims abstract description 41
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 25
- 238000004891 communication Methods 0.000 claims description 34
- 238000012544 monitoring process Methods 0.000 claims description 17
- 230000003993 interaction Effects 0.000 claims description 13
- 230000009466 transformation Effects 0.000 description 26
- 238000000034 method Methods 0.000 description 18
- 238000005516 engineering process Methods 0.000 description 17
- 230000008569 process Effects 0.000 description 15
- 230000001276 controlling effect Effects 0.000 description 6
- 238000013519 translation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 4
- 238000010248 power generation Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The utility model discloses a kind of charger.This charger comprises: reversible transducer, for the mutual conversion between the alternating current of electrical network and the direct current of electric motor car; Bidirectional measuring ammeter, be connected with reversible transducer, for being obtained the first conversion electricity and the second conversion electricity by metering, wherein, first changes the electricity that direct current that electricity is electric motor car is converted to the alternating current of electrical network, and second changes the galvanic electricity that alternating current that electricity is electrical network is converted to electric motor car; And controller, being connected with bidirectional measuring ammeter with reversible transducer respectively, carrying out current conversion for controlling reversible transducer according to the first conversion electricity and the second conversion electricity.By this utility model, solve the problem that charger cannot ensure the mutual conversion of the electric current between electric motor car realization and electrical network.
Description
Technical field
The utility model relates to charger field, in particular to a kind of charger.
Background technology
Along with the large-scale promotion of electric motor car, the recoverable amount of electric motor car (such as, electric automobile) is progressively improving.Energy storage device---the battery that electric motor car adopts, can as the distributed energy storage unit of following intelligent grid.In actual applications, the plenty of time is in suspended state in electric motor car, and car owner can be that electric-vehicle-mounted battery charges by electrical network in the grid off peak load period, and provides electric energy by electric-vehicle-mounted battery to electrical network in the peak load of grid period.Between car owner and system call person, the technology being realized intelligent recharge and discharge management by Spot Price and intelligent electric meter is called V2G (Vehicle to Grid) technology.
V2G technology can regulate the peak-valley difference of network load effectively, plays the effect of peak load shifting.Along with wind-powered electricity generation, solar energy etc. are with the development of the new forms of energy of randomness in recent years, the peak-valley difference that electrical network needs an energy storage device to bring to stabilize randomness, this embodies the value of electric motor car V2G technology application to a great extent.Electric motor car energy storage usefulness is equivalent to effective reserve capacity of system, and it will stabilize the fluctuation of renewable energy power generation power output effectively, promotes that electrical network receives the renewable energy power generation power of fluctuation, for the regulating power strengthening electrical network provides new approach.
The charger of electric motor car in prior art can only realize the one-way transmission of electric energy, therefore, cannot ensure effective enforcement of V2G technology.
The problem of the mutual conversion of the electric current between electric motor car realization and electrical network cannot be ensured for charger in correlation technique, not yet propose effective solution at present.
Utility model content
Main purpose of the present utility model is to provide a kind of charger, to solve the problem that charger cannot ensure the mutual conversion of the electric current between electric motor car realization and electrical network.
To achieve these goals, according to the utility model, provide a kind of charger.This charger comprises: reversible transducer, for the mutual conversion between the alternating current of electrical network and the direct current of electric motor car; Bidirectional measuring ammeter, be connected with reversible transducer, for being obtained the first conversion electricity and the second conversion electricity by metering, wherein, first changes the electricity that direct current that electricity is electric motor car is converted to the alternating current of electrical network, and second changes the galvanic electricity that alternating current that electricity is electrical network is converted to electric motor car; And controller, being connected with bidirectional measuring ammeter with reversible transducer respectively, carrying out current conversion for controlling reversible transducer according to the first conversion electricity and the second conversion electricity.
Further, this charger also comprises: protection module, is connected with controller, generates and exports the first warning information during for breaking down at controller and receiving charging indication information.
Further, this charger also comprises: communication module, be connected with controller, for the communication between charger and the first system, and the communication between charger and second system, wherein, the first system is the system that scheduling electric motor car and electrical network carry out current conversion, and second system is the system that request electric motor car and electrical network carry out current conversion.
Further, communication module performs the communication between charger and the first system by Ethernet, and communication module performs the communication between charger and second system by Ethernet.
Further, this charger also comprises: monitoring module, for monitoring the battery status of electric motor car.
Further, this charger also comprises: human-computer interaction interface, and wherein, human-computer interaction interface is connected with controller.
Further, reversible transducer is full-bridge reversible transducer.
Further, the control model of full-bridge reversible transducer is pulse width modulation double-loop control pattern.
Further, controller is digital signal processor.
Further, the digital signal processor of digital signal processor to be model be TM320F28335.
By the utility model, adopt and comprise the charger of following equipment: reversible transducer, for the mutual conversion between the alternating current of electrical network and the direct current of electric motor car; Bidirectional measuring ammeter, be connected with reversible transducer, for being obtained the first conversion electricity and the second conversion electricity by metering, wherein, first changes the electricity that direct current that electricity is electric motor car is converted to the alternating current of electrical network, and second changes the galvanic electricity that alternating current that electricity is electrical network is converted to electric motor car; And controller, be connected with bidirectional measuring ammeter with reversible transducer respectively, carrying out current conversion for controlling reversible transducer according to the first conversion electricity and the second conversion electricity, solving the problem that charger cannot ensure the mutual conversion of the electric current between electric motor car realization and electrical network.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram of the charger according to the utility model embodiment; And
Fig. 2 is the schematic diagram of the information interaction of charger according to the utility model embodiment.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
The application's scheme is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only the embodiment of the application's part, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the application's protection.
It should be noted that, term " first ", " second " etc. in the specification of the application and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged, in the appropriate case so that the embodiment of the application described herein.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
According to embodiment of the present utility model, provide a kind of charger.
Fig. 1 is the schematic diagram of the charger according to the utility model embodiment.As shown in Figure 1, this charger comprises: reversible transducer 10, bidirectional measuring ammeter 20 and controller 30.
Reversible transducer 10, for the mutual conversion between the alternating current of electrical network and the direct current of electric motor car.
Reversible transducer 10 is power electronic device, can realize the alternating current of electrical network and the galvanic mutual conversion of electric motor car, and then realize the two-way flow of electric energy.This reversible transducer 10 realizes the two-way changing of electric current by two-way AC/DC translation circuit.Alternatively, reversible transducer 10 can be full-bridge reversible transducer, adopts pulse width modulation (PWM) double-loop control, and outer shroud controls DC side busbar voltage, and inner ring controls grid side electric current.It should be noted that, electric motor car here comprises electric automobile.
Bidirectional measuring ammeter 20, be connected with reversible transducer 10, for being obtained the first conversion electricity and the second conversion electricity by metering, wherein, first changes the electricity that direct current that electricity is electric motor car is converted to the alternating current of electrical network, and second changes the galvanic electricity that alternating current that electricity is electrical network is converted to electric motor car.
Bidirectional measuring ammeter 20 is for realizing the metering of bidirectional electric energy flowing.Under V2G technology, electric energy not only flows to user side from grid side.When user participates in scheduling adjustment, accurate-metering is needed to be input to the electric energy power of grid side from user side.Bidirectional measuring ammeter 20 achieves the metering of bi-directional energy flow power in V2G technology.
Controller 30, is connected with bidirectional measuring ammeter 20 with reversible transducer 10 respectively, carries out current conversion for controlling reversible transducer 10 according to the first conversion electricity and the second conversion electricity.
Controller 30 constitutes the control module of this charger, the control module of charger is used for the control strategy being responsible for reversible transducer 10, can accept other module of charger, as bidirectional measuring ammeter 20 simultaneously, the control signal transmitted, and make corresponding Logic judgment and reaction.The digital signal processor of optional controller 30 to be models be TM320F28335.Utilize this digital signal processor can improve delivery of electrical energy power between electric motor car and electrical network.
This charger can also comprise: protection module, is connected with controller 30, generates and exports the first warning information during for breaking down at controller 30 and receiving charging indication information.
Particularly, charging indication information is the galvanic information that the alternating current of electrical network is converted to electric motor car by instruction reversible transducer 10, and the first warning information is that prompting forbids that the alternating current of electrical network is converted to the galvanic information of electric motor car by reversible transducer 10.Protection module achieves the defencive function of charger entirety.When charger breaks down, the such as situation such as communication failure, controller 30 fault, charger can not charge to electric motor car again, otherwise can cause larger infringement to electric motor car.Therefore, when controller 30 breaks down and receives charging indication information, can generate and export the first warning information.
This charger can also comprise: communication module, be connected with controller 30, for the communication between charger and the first system, and the communication between charger and second system, wherein, the first system is the system that scheduling electric motor car and electrical network carry out current conversion, and second system is the system that request electric motor car and electrical network carry out current conversion.
Particularly, communication module achieves discharge and recharge data in real time and the first system and the mutual function of second system.When the first system requires that electric motor car carries out current conversion (V2G), the parameter such as state, battery charge state of electric motor car needs real-time report to the first system.Meanwhile, when second system request participates in current conversion (V2G), the communication realizing second system and charger through communication module is also needed.Alternatively, communication module performs the communication between charger and the first system by Ethernet, and communication module performs the communication between charger and second system by Ethernet.
This charger can also comprise: monitoring module, for monitoring the battery status of electric motor car.
Wherein, at battery status for presetting battery status when receiving current conversion indication information, generate and export the second warning information, current conversion indication information is the information that instruction electric motor car and electrical network carry out current conversion, and the second warning information is that prompting forbids that electric motor car and electrical network carry out the information of current conversion.Specifically, the state of monitoring module monitoring electric motor car.Here default battery status is the state that the state-of-charge of battery of electric vehicle is in lower state position, or the state that cell degradation situation (SOH) is lower.Under default battery status, electric motor car can not participate in and the current transformation of electrical network (V2G).Monitoring module monitoring electric motor car battery status, and electric motor car be in default battery status but receive current conversion indication information time, send warning information.
This charger can also comprise: human-computer interaction interface, and wherein, human-computer interaction interface is connected with controller 30.
Particularly, human-computer interaction interface is connected with controller 30, pass through human-computer interaction interface, user can input the control information to exchanging electrical current, meanwhile, the state parameter of exchanging electrical current can also be shown, such as, the direct current of electric motor car is converted to the size of the electric energy of the alternating current of electrical network, or the alternating current of electrical network is converted to the size of the galvanic electricity of electric motor car.
The charger that the present embodiment provides comprises: reversible transducer 10, for the mutual conversion between the alternating current of electrical network and the direct current of electric motor car; Bidirectional measuring ammeter 20, be connected with reversible transducer 10, for being obtained the first conversion electricity and the second conversion electricity by metering, wherein, first changes the electricity that direct current that electricity is electric motor car is converted to the alternating current of electrical network, and second changes the galvanic electricity that alternating current that electricity is electrical network is converted to electric motor car; And controller 30, being connected with bidirectional measuring ammeter 20 with reversible transducer 10 respectively, carrying out current conversion for controlling reversible transducer 10 according to the first conversion electricity and the second conversion electricity.By this embodiment, solve the problem that charger cannot ensure the mutual conversion of the electric current between electric motor car realization and electrical network, and then realize the mutual conversion between the alternating current of electrical network and the direct current of electric motor car by reversible transducer 10, and the alternating current of the direct current utilizing bidirectional measuring ammeter 20 the to measure electric motor car electricity and electrical network that are converted to the alternating current of electrical network is converted to the galvanic electricity of electric motor car, thus ensure that the realization of the mutual conversion of electric current between electric motor car and electrical network.
Fig. 2 is the schematic diagram of the information interaction of charger according to the utility model embodiment.As shown in Figure 2, this charger F comprises: control module 01, two-way AC/DC translation circuit 02, bidirectional measuring ammeter 03, protection module 04, communication module 05, monitoring module 06, human-computer interaction interface 07.By this charger, achieve the current transformation between electrical network A and electric motor car B.Wherein, communication module 05 is connected with control module 01, and carries out communication with user C and dispatching patcher D respectively by Ethernet E.It should be noted that, the control module 01 in this embodiment is with the controller 30 in Fig. 1, and two-way AC/DC translation circuit 02 is with the reversible transducer 10 in Fig. 1, and bidirectional measuring ammeter 03, with the bidirectional measuring ammeter 20 in Fig. 1, repeats no more here.Protection module 04 is connected with control module 01, generate and export the first warning information during for breaking down in control module 01 and receiving charging indication information, wherein, charging indication information is the galvanic information that the alternating current of electrical network A is converted to electric motor car B by the two-way AC/DC translation circuit 02 of instruction, and the first warning information is that prompting forbids that the alternating current of electrical network A is converted to the galvanic information of electric motor car B by two-way AC/DC translation circuit 02; Communication module 05 is connected with control module 01, for the communication between charger F and custom system C, and the communication between charger F and dispatching patcher D, wherein, dispatching patcher D is the system that scheduling electric motor car B and electrical network A carries out current conversion, and custom system C is the system that request electric motor car B and electrical network A carries out current conversion; Monitoring module 06 is for monitoring the battery status of electric motor car B, wherein, at battery status for presetting battery status when receiving current conversion indication information, generate and export the second warning information, current conversion indication information is the information that instruction electric motor car B and electrical network A carries out current conversion, and the second warning information is that prompting forbids that electric motor car B and electrical network A carries out the information of current conversion; Human-computer interaction interface 07 is connected with control module 01.As can be seen from this embodiment, allow the two-way flow of energy according to charger of the present utility model, ensured the feasibility of V2G technology; Adopt bidirectional measuring ammeter, can the size of power of accurate-metering user side and grid side bidirectional current; Meanwhile, charger and dispatching patcher can be realized with the real time communication of user, make the current conversion between electric motor car and electrical network more flexible.
The two-way changing realizing electric current between electric motor car and electrical network is may be used for, i.e. V2G technology according to the charger of the utility model embodiment.The V2G technology utilizing this charger to realize can realize the intercommunication mutually between electric motor car, user's (with above-mentioned second system) and dispatching patcher (with above-mentioned the first system).The main flow of current transformation between electric motor car and electrical network that user participates in will be introduced below successively, and the main flow of current transformation between the electric motor car that participates in of dispatching patcher and electrical network.
Introduce the main flow of current transformation between the electric motor car of user's participation and electrical network below, this flow process mainly comprises following content:
(1) identity information of user is obtained.
When user asks to participate in current conversion (V2G), first user needs the checking carrying out account and password.Account input can adopt the mode of swiping the card to carry out.
(2) whether the identity information of authentication of users is correct.
(3) if the identity information verifying user is correct, then detect and whether receive current conversion participation signal.
If the identity information verifying user is correct, then also needs to detect user and whether participate in current conversion (V2G), if detect that receiving current conversion participates in signal, then illustrate that user asks to participate in current conversion (V2G).Alternatively, after the account of user, Password Input are correct, there are " participation " and " not participating in " two informations, if user selects " participation ", then controller can receive current conversion and participate in signal, if user selects " not participating in ", then controller can not receive current conversion and participate in signal.
(4) if detect that receiving current conversion participates in signal, then obtain the present battery status of electric motor car.
(5) present battery status is sent to dispatching patcher.
Here dispatching patcher, with above-mentioned the first system, repeats no more here.
(6) authority that is scheduled is obtained.
After the present battery status of electric motor car is sent to dispatching patcher, electric motor car just obtains the authority of the system call that is scheduled.
(7) if the identity information verifying user is incorrect, then generate and output error information.
Visible, between the electric motor car that user participates in and electrical network, the flow process of current transformation mainly comprises: when user utilizes V2G technology to charge for electric motor car, electric motor car can be connected to charger, and swipe the card.After inputting corresponding password, charger confirms current user identities.After confirming that identity is errorless, user selects whether participate in V2G technology, if user agrees to participate in V2G technology, then the battery status of electric motor car is sent to dispatching patcher, and opens controlling power of dispatching patcher, otherwise, close controlling power of dispatching patcher.By above-mentioned steps, user can participate in current transformation between electric motor car and electrical network, thus utilization carries out discharge and recharge process according to charger of the present utility model, realizes the two-way changing of the electric current between electric motor car and electrical network.
Introduce the flow process of current transformation between the electric motor car of dispatching patcher participation and electrical network below, this flow process mainly comprises following content:
(1) dispatch command is obtained.
When there is current transformation between electric motor car and electrical network, first can receive the dispatch command of dispatching patcher, according to dispatch command, between electric motor car and electrical network, carry out corresponding current transformation.
(2) verify whether active user participates in current transformation.
User can select whether to participate in current transformation (V2G) voluntarily.
(3) if verify active user to participate in current transformation, then verify whether the battery status of current power car meets preset requirement.
(4) if the battery status verifying current power car meets preset requirement, then current transformation is carried out according to dispatch command.
(5) metering current converted quantity.
Carry out between electric motor car and electrical network in the process of current transformation, bidirectional measuring ammeter can measure current transformation amount.Here current transformation amount comprises: the direct current of electric motor car is converted to the size of the electricity of the alternating current of electrical network; The alternating current of electrical network is converted to the size of the galvanic electricity of electric motor car.According to current transformation amount, the controller of charger can control accordingly to current transformation process.Meanwhile, also can the expense that the current transformation between electric motor car and electrical network produces be settled accounts according to current transformation amount.The related data produced in current transformation process can show on human-computer interaction interface.
(6) if verify active user not participate in current transformation, then generate and output scheduling failure warning information.
Visible, between the electric motor car that dispatching patcher participates in and electrical network, the flow process of current transformation mainly comprises: when dispatching patcher requires that electric motor car participates in current transformation (V2G technology), dispatching command is conveyed to charger.First charger confirms whether this electric motor car is agreed to participate in V2G technology.If agree to, then confirmed the battery status of current power car by monitoring module, if monitoring module thinks that the battery status of this electric motor car is good, then start V2G scheduling; Otherwise reporting scheduling system, dispatches unsuccessfully.After beginning V2G scheduling, battery of electric vehicle is discharged to grid side by the reversible transducer of charger, and measures the expense of current feedback electrical network electric energy by bidirectional measuring ammeter.In whole charging process, protection module ensures that charger state is normal, and whether monitoring module monitoring battery the situation of overdischarge occurs.Meanwhile, charge and discharge process real-time report to dispatching patcher, and is notified user by communication module.Pass through said process, the real-time communication between charger and dispatching patcher and user can be realized, and according to the requirement of V2G technology by battery of electric vehicle energy back to electrical network and dispatching patcher, the current transformation amount in this process and the corresponding expense produced can be measured simultaneously.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (10)
1. a charger, is characterized in that, comprising:
Reversible transducer, for the mutual conversion between the alternating current of electrical network and the direct current of electric motor car;
Bidirectional measuring ammeter, be connected with described reversible transducer, for being obtained the first conversion electricity and the second conversion electricity by metering, wherein, described first changes the electricity that direct current that electricity is described electric motor car is converted to the alternating current of described electrical network, and described second changes the galvanic electricity that alternating current that electricity is described electrical network is converted to described electric motor car; And
Controller, is connected with described bidirectional measuring ammeter with described reversible transducer respectively, carries out current conversion for controlling described reversible transducer according to described first conversion electricity and described second conversion electricity.
2. charger according to claim 1, is characterized in that, described charger also comprises:
Protection module, is connected with described controller, generates and exports the first warning information during for breaking down at described controller and receiving charging indication information.
3. charger according to claim 1, is characterized in that, described charger also comprises:
Communication module, be connected with described controller, for the communication between described charger and the first system, and the communication between described charger and second system, wherein, described the first system is the system that execution cost electric motor car and described electrical network carry out current conversion, and described second system is the system that the described electric motor car of request and described electrical network carry out current conversion.
4. charger according to claim 3, it is characterized in that, described communication module performs the communication between described charger and described the first system by Ethernet, and described communication module performs the communication between described charger and described second system by Ethernet.
5. charger according to claim 1, is characterized in that, described charger also comprises:
Monitoring module, for monitoring the battery status of described electric motor car.
6. charger according to claim 1, is characterized in that, described charger also comprises:
Human-computer interaction interface, wherein, described human-computer interaction interface is connected with described controller.
7. charger according to claim 1, is characterized in that, described reversible transducer is full-bridge reversible transducer.
8. charger according to claim 7, is characterized in that, the control model of described full-bridge reversible transducer is pulse width modulation double-loop control pattern.
9. charger according to claim 1, is characterized in that, described controller is digital signal processor.
10. charger according to claim 9, is characterized in that, the digital signal processor of described digital signal processor to be model be TM320F28335.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520182618.4U CN204441900U (en) | 2015-03-27 | 2015-03-27 | Charger |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520182618.4U CN204441900U (en) | 2015-03-27 | 2015-03-27 | Charger |
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| CN204441900U true CN204441900U (en) | 2015-07-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104701874A (en) * | 2015-03-27 | 2015-06-10 | 国家电网公司 | Charging machine for electric vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104701874A (en) * | 2015-03-27 | 2015-06-10 | 国家电网公司 | Charging machine for electric vehicle |
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