CN205407387U - Solar charging system - Google Patents
Solar charging system Download PDFInfo
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- CN205407387U CN205407387U CN201620160054.9U CN201620160054U CN205407387U CN 205407387 U CN205407387 U CN 205407387U CN 201620160054 U CN201620160054 U CN 201620160054U CN 205407387 U CN205407387 U CN 205407387U
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Abstract
The utility model provides a solar charging system contains charge module and the conversion module that concentrate the dc bus, imports the module of charging behind the electrical energy conversion that conversion module produced solar panel, and like this, energy that solar panel produced is through conversion module, supply with charging load through concentrating the dc bus, compare through the scheme that power supply network is merged into in complicated dc -to -ac converter conversion with the electric quantity that in the conventional art produces solar energy, the utility model has the advantages of with low costs, electrical energy conversion is efficient.
Description
Technical field
This utility model relates to the charging system of new-energy automobile, particularly relates to a kind of charging system being used for by solar energy and charging.
Background technology
Along with popularizing of the development of new-energy automobile, particularly electric automobile, the demand of quick charge station is increasing.People generally expect electric automobile course continuation mileage length and the charging interval is short, this means that quick charge acc power can be increasing, and the load-bearing capacity of electrical network is limited, particularly electrical network heap(ed) capacity in downtown urban land is substantially stationary, be difficult to because charging station need electricity capacity is significantly increased, and densely inhabited district is bigger to the demand of charging station, the load of such electrical network has just become the critical bottleneck that charging station is built.The problem not enough in order to solve net capacity, it is thought that utilize solar electrical energy generation, electricity supply charging load that solar energy is sent, when net capacity is limited, provide bigger peak power for charging station further.Traditional charging station with solar electrical energy generation, is that inverter circuit is complicated, relatively costly by photovoltaic DC-to-AC converter and on electrical network.
Utility model content
This utility model provides a kind of solar recharging system, to solve the problem that charging station circuit is complicated, cost is high of existing solar electrical energy generation.
For realizing described purpose, the technical scheme that the application provides is as follows:
A kind of solar recharging system, it is characterised in that include solar panels, modular converter and charging module, wherein,
Described solar panels, for obtaining the electric energy converted by solar energy；
The input of described modular converter connects described solar panels, is changed by the electric energy that described solar panels produce, and is input in described charging module by the electric energy after conversion；
Described charging module, including AC-DC module, dc bus and one or more DC-DC charging submodule；
Described AC-DC module, its input connects electrical network, and the alternating current of electrical network is converted to unidirectional current, and its outfan connects described dc bus；
The input of described DC-DC charging submodule connects described dc bus, and its outfan is used for connecting charging load.
Optionally, described AC-DC module comprises two-way pfc circuit unit and DC-DC circuit unit.
Optionally, the Single port of described two-way pfc circuit unit connects electrical network, and another port connects the input of described DC-DC circuit unit as PFC bus, for the energy of electrical network and the energy of described PFC bus are carried out bi-directional；The outfan of described DC-DC circuit unit connects described dc bus.
Optionally, the outfan of described modular converter connects described PFC bus.
Optionally, the outfan of described modular converter connects described dc bus.
Optionally, described AC-DC module is the module of bidirectional energy transmission.
Optionally, described AC-DC module comprises two-way pfc circuit unit and bi-directional DC-DC circuit unit, wherein,
The Single port of described two-way pfc circuit unit connects electrical network, and another port connects the Single port of described bi-directional DC-DC circuit unit as PFC bus, for the energy of electrical network and the energy of described PFC bus are carried out bi-directional；
The another port of described bi-directional DC-DC circuit unit connects the outfan of described dc bus and described modular converter；For the energy of described PFC bus and the energy of described dc bus are carried out bi-directional.
Optionally, described charging system also includes energy-storage units, and described energy-storage units connects described dc bus.
Optionally, described charging system also includes inversion unit, and its input connects dc bus, and its outfan connects electrical network, for being that alternating current feeds back to electrical network by the electricity inversion on dc bus.
Optionally, described modular converter output DC voltage.
This utility model provides a kind of solar recharging system, comprise the charging module and modular converter of concentrating dc bus, it is input in charging module after the electric energy conversion that solar panels are produced by modular converter, so, solar panels produce the converted module of energy, by concentrate dc bus supply charging load, changing through complicated inverter with the electricity produced by solar energy in conventional art and compare to the scheme of power supply grid, this utility model has the advantage that cost is low, energy conversion efficiency is high.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is charging system embodiment one schematic diagram that this utility model embodiment provides；
Fig. 2 is charging system embodiment two schematic diagram that this utility model embodiment provides；
Fig. 3 is charging system embodiment three schematic diagram that this utility model embodiment provides；
Fig. 4 is charging system embodiment four schematic diagram that this utility model embodiment provides；
Fig. 5 is charging system embodiment five schematic diagram that this utility model embodiment provides；
Fig. 6 is charging system embodiment six schematic diagram that this utility model embodiment provides.
Detailed description of the invention
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.
This utility model provides a kind of solar recharging system, to solve the problem that charging station circuit is complicated, cost is high of existing solar electrical energy generation.
Reference Fig. 1, embodiment one schematic diagram that the application provides, a kind of solar recharging system, including: solar panels 100, modular converter 200 and charging module 300, wherein,
Described solar panels 100, for obtaining the electric energy converted by solar energy；
The input of described modular converter 200 connects described solar panels, is changed by the electric energy of described solar panels, is input in described charging module by the electric energy after conversion；
Described charging module 300, including AC-DC module 301, dc bus 302 and one or more DC-DC charging submodule 303；
Described AC-DC module 301, its input connects electrical network, and the alternating current of electrical network is converted to unidirectional current, and its outfan connects described dc bus 302；
The input of described DC-DC charging submodule 303 connects described dc bus, and its outfan is used for connecting charging load.
It should be noted that the outfan of described AC-DC module 301, comprising output plus terminal and output negative terminal, output plus terminal connects dc bus, and output negative terminal connects reference potential end-ground end；Same, the outfan of described modular converter also comprises output plus terminal and output negative terminal.In the application for convenience, emphasis describes output plus terminal, such as, " described AC-DC module 301; its outfan connects described dc bus 302 " in above-described embodiment, actually implies " output negative terminal connects earth terminal, and the reference potential end of dc bus connects earth terminal ", in like manner " as described in DC-DC charge submodule 303 input connect dc bus ", that is, described DC-DC charges, the input anode of submodule 303 connects dc bus, and its negative terminal connects earth terminal.
This utility model provides a kind of solar recharging system, comprise the charging module and modular converter of concentrating dc bus, it is input in charging module after the electric energy conversion that solar panels are produced by modular converter, so, solar panels produce the converted module of energy, by concentrate dc bus supply charging load, changing through complicated inverter with the electricity produced by solar energy in conventional art and compare to the scheme of power supply grid, this utility model has the advantage that cost is low, energy conversion efficiency is high.
The electricity of solar panels is transformed in charging module, it is only necessary to simple efficient one-level DC-DC conversion circuit.And the electricity that traditional solar panels produce to be changed by inverter, it is connected to the grid, then electrical network is carried out direct current and is converted to charging load and powers.Therefore, the energy conversion links of the solar recharging system of the application is few, and system effectiveness is improved.Dc bus is taken from the input of one or more DC-DC charging submodule, makes the power of charging load be able to centralized Control.
Optionally, described AC-DC module 301 comprises two-way pfc circuit unit and DC-DC circuit unit.
Optionally, the Single port of described two-way pfc circuit unit connects electrical network, another port connects the input of described DC-DC circuit unit as PFC bus, for the energy of the energy of electrical network and described PFC bus is carried out bi-directional, namely can by unidirectional current that the AC rectification of electrical network is PFC bus, it is also possible to be that alternating current feeds back to electrical network by the DC inverter of PFC bus；The outfan of described DC-DC circuit unit connects described dc bus.
Optionally, the outfan of described modular converter connects described PFC bus.
With reference to Fig. 2, embodiment two schematic diagram that the application provides, one of specific implementation of described AC-DC module on the basis of embodiment one.
In the present embodiment, as in figure 2 it is shown, described AC-DC module 301 comprises two-way pfc circuit unit 3011 and DC-DC circuit unit 3013.
The Single port of described two-way pfc circuit unit 3011 connects electrical network, and another port end connects the input of described DC-DC circuit unit 3013 as PFC bus 3012, for the energy of electrical network and the energy of described PFC bus 3012 are carried out bi-directional；
The outfan of described DC-DC circuit unit 3013 connects described dc bus；
The outfan of described modular converter 200 connects described PFC bus 3012.
Wherein, two-way pfc circuit unit 3011 not only has the effect of bi-directional energy, but also has the function of PFC.
It should be noted that in the present embodiment, the output plus terminal of modular converter 200 connects described PFC bus 3012, and output negative terminal connects earth terminal.
Modular converter 200 described herein is input in described charging module 300 after being changed by the energy of solar panels 100, specific in the present embodiment, described modular converter 200 outfan is connected to PFC bus 3012, when load needs to charge, by modular converter 200 and DC-DC circuit unit 3013, by the electricity supply load of solar panels 100, effectively reduce the load of electrical network；When load need not be charged or also has remaining electricity after supply load, by modular converter 200 and two-way pfc circuit unit 3011, by the back electric quantity transmission network of solar panels 100, supply other and use electric loading.
Pfc circuit DC side energy can be delivered in electrical network by the two-way pfc circuit unit 3011 in the present embodiment, the PFC rectification circuit of its cost and energy unidirectional delivery is similar, the electricity that solar energy produces is delivered to energy two-way pfc circuit unit 3011 outfan by modular converter 200, and the excess energy beyond successive load directly can be fed back in electrical network by two-way pfc circuit unit 3011.The electric energy sent by solar panels is converted to DC voltage the changer of the DC side to pfc circuit, and circuit is simply more than the photovoltaic DC-to-AC converter by solar energy and to electrical network.
Optionally, the outfan of described modular converter connects described dc bus.
Optionally, described AC-DC module is the module of bidirectional energy transmission, namely can by unidirectional current that the AC rectification of electrical network is PFC bus, it is also possible to be that alternating current feeds back to electrical network by the DC inverter of PFC bus.
When the module that described AC-DC module is bidirectional energy transmission, the outfan of modular converter connects dc bus, the electric energy of electrical network can be delivered to dc bus end by this AC-DC module, by being passed to after the AC rectification of electrical network on dc bus, it is that charging load is powered again through DC-DC charging submodule；The electric energy of dc bus end can also be delivered to electrical network, that is, can the electricity of solar panels is delivered on dc bus by modular converter, be defeated by electrical network again through after two-way AC-DC module inversion, supply other and use electric loading.
With reference to Fig. 3, embodiment three schematic diagram that the application provides, the two of the specific implementation of the described AC-DC module on the basis of embodiment one are also AC-DC module is the specific implementation of module of bidirectional energy transmission.
In the present embodiment, as it is shown on figure 3, described AC-DC module 301 comprises two-way pfc circuit unit 3011 and bi-directional DC-DC circuit unit 3014.
The Single port of described two-way pfc circuit unit 3011 connects electrical network, and another port connects the Single port of described bi-directional DC-DC circuit unit 3014 as PFC bus, for the energy of electrical network and the energy of described PFC bus are carried out bi-directional；
The another port of described bi-directional DC-DC circuit unit 3014 connects the outfan of described dc bus 302 and described modular converter 200；For the energy of described PFC bus and the energy of described dc bus are carried out bi-directional.
Wherein, two-way pfc circuit unit 3011 not only has the effect of bi-directional energy, but also has the function of PFC.
In the present embodiment, described modular converter 200 outfan is connected to dc bus 302, the module that described AC-DC module 301 is transmitted for bidirectional energy.When load needs to charge, by modular converter 200 and dc bus 302, by the electricity supply load of solar panels 100, effectively reduce the load of electrical network；When load need not be charged or also has remaining electricity after supply load, by the AC-DC module 301 of modular converter 200 and bi-directional energy, the electricity of solar panels 100 is fed back to electrical network, supply other and use electric loading.Concrete, the AC-DC module 301 of bi-directional energy, in order to realize PFC function, includes two-way pfc circuit unit 3011 and bi-directional DC-DC circuit unit 3014.
Preferably, described modular converter output DC voltage.
Optionally, described charging system also includes energy-storage units, and described energy-storage units connects described dc bus.
With reference to Fig. 4, embodiment four schematic diagram that the application provides.The three of the specific implementation of the described charging module on the basis of embodiment one.
In the present embodiment, as shown in Figure 4, on the basis of the charging module of embodiment one, charging module 300 also includes energy-storage units 304.The two ends of described energy-storage units 304 are connected to dc bus and ground end, for storing the electricity exported by modular converter of solar panels, or store the electricity that electrical network is converted by AC-DC module.The existence of described energy-storage units, makes the electricity that solar panels produce be stored.
Described dc bus connects energy-storage units, it is possible to when modular converter and charging module are enough to provide the DC-DC overall power requirement charging submodule, or, when electrical network electricity consumption the lowest point, it is energy-storage units charging by electrical network or solar panels；And in electrical network or solar panels electricity shortage, or electrical network electricity consumption peak value etc., when the output causing charging module and modular converter is insufficient for the charge requirement of DC-DC charging submodule, it is that DC-DC charging submodule is powered by energy-storage units, plays the effect of peak load shifting, reserve power.
It is understood that embodiments herein is it may also is that on the basis of Fig. 2 embodiment two, dc bus 302 connects energy-storage units.Concrete, AC-DC module 301 includes two-way pfc circuit unit 3011, PFC bus 3012 and DC-DC circuit unit 3013, and modular converter 200 input connects solar panels 100, and its outfan connects PFC bus 3012, and energy-storage units 304 connects dc bus 302.The electricity that solar panels 100 produce is delivered on PFC bus 3012 by modular converter 200, DC-DC circuit unit 3013 can be passed through and be delivered to dc bus 302, it is stored in energy-storage units 304, or is powered to DC-DC charging submodule 303 by dc bus 302；Can also be that alternating current feeds back to electrical network by the inversion of two-way pfc circuit unit 3011.
With reference to Fig. 5, embodiment five schematic diagram that the application provides.
In the present embodiment, as it is shown in figure 5, on the basis of the charging module of embodiment four, two outfans of modular converter 200 connect dc bus 302 and ground end and the two ends of energy-storage units 304 respectively.
The electricity that solar panels 100 produce is delivered on dc bus 302 by modular converter 200, and this electricity can supply the DC-DC charging submodule 303 of rear class, it is also possible to is stored in energy-storage units 304.
When the module that described AC-DC module 301 is bi-directional energy, the electricity that the solar panels 100 of the present embodiment produce is delivered on dc bus 302 by modular converter 200, this electricity is possible not only to the DC-DC charging submodule 303 of supply rear class, or it is stored in energy-storage units 304, it is also possible to it is delivered to electrical network by two-way AC-DC module 301.
It is understood that embodiments herein is it may also is that on the basis of Fig. 3 embodiment three, dc bus 302 connects energy-storage units.Concrete, AC-DC module 301 includes two-way pfc circuit unit 3011, bi-directional DC-DC circuit unit 3014, and modular converter 200 input connects solar panels 100, and its outfan connects dc bus 302 and ground end, and energy-storage units 304 connects dc bus 302.The electricity that solar panels 100 produce is delivered on dc bus 302 by modular converter 200, and this electricity can be stored in energy-storage units 304, or is powered to DC-DC charging submodule 303 by dc bus 302；Can also be changed to electrical network by the inversion of the transmission of bi-directional DC-DC circuit unit 3014 direct current and two-way pfc circuit unit 3011.
Optionally, described charging system also includes inversion unit, and its input connects dc bus, and its outfan connects electrical network, for being that alternating current feeds back to electrical network by the electricity inversion on dc bus.
With reference to Fig. 6, embodiment six schematic diagram that the application provides.
In the present embodiment, as shown in Figure 6, on the basis of the charging module of embodiment five, charging system also includes inversion unit 305, its input connects dc bus 302 and ground end, its outfan connects electrical network, and for being that alternating current feeds back to electrical network by the electricity inversion on dc bus 302, the electricity especially produced by solar panels 100 is delivered to dc bus 302 by modular converter 200, inversion again through inversion unit 305 converts back electrical network of feeding.
The electricity that solar panels 100 produce is delivered on dc bus 302 by modular converter 200, and this electricity can supply the DC-DC charging submodule 303 of rear class, it is also possible to is stored in energy-storage units 304.In addition, the electricity that solar panels 100 produce, convert back, through inversion, electrical network of feeding also by inversion unit 305.So, electrical network can pass through AC-DC module will be defeated by dc bus after AC rectification, DC inverter can also be that alternating current feeds back to electrical network by inversion unit by dc bus.
It should be noted that, the circuit of the bi-directional energy such as the two-way modules mentioned in the application or two-way circuit unit, due to Two-way energy transfer, therefore, there is no fixing input or outfan, the application is referred to as Single port and another port, wherein, Single port is two terminals (or end line), is similar to input or the outfan of unidirectional delivery energy.
The above, be only preferred embodiment of the present utility model, and this utility model is not done any pro forma restriction.Although this utility model is disclosed above with preferred embodiment, but it is not limited to this utility model.Any those of ordinary skill in the art, without departing under technical solutions of the utility model ambit, all may utilize the method for the disclosure above and technology contents and technical solutions of the utility model are made many possible variations and modification, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content without departing from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all still fall within the scope of technical solutions of the utility model protection.
Claims (10)
1. a solar recharging system, it is characterised in that include solar panels, modular converter and charging module, wherein,
Described solar panels, for obtaining the electric energy converted by solar energy；
The input of described modular converter connects described solar panels, is changed by the electric energy that described solar panels produce, and is input in described charging module by the electric energy after conversion；
Described charging module, including AC-DC module, dc bus and one or more DC-DC charging submodule；
Described AC-DC module, its input connects electrical network, and the alternating current of electrical network is converted to unidirectional current, and its outfan connects described dc bus；
The input of described DC-DC charging submodule connects described dc bus, and its outfan is used for connecting charging load.
2. charging system according to claim 1, it is characterised in that described AC-DC module comprises two-way pfc circuit unit and DC-DC circuit unit.
3. charging system according to claim 2, it is characterized in that, the Single port of described two-way pfc circuit unit connects electrical network, and another port connects the input of described DC-DC circuit unit as PFC bus, for the energy of electrical network and the energy of described PFC bus are carried out bi-directional；The outfan of described DC-DC circuit unit connects described dc bus.
4. charging system according to claim 3, it is characterised in that the outfan of described modular converter connects described PFC bus.
5. charging system according to claim 1, it is characterised in that the outfan of described modular converter connects described dc bus.
6. charging system according to claim 5, it is characterised in that described AC-DC module is the module of bidirectional energy transmission.
7. charging system according to claim 5, it is characterised in that described AC-DC module comprises two-way pfc circuit unit and bi-directional DC-DC circuit unit, wherein,
The Single port of described two-way pfc circuit unit connects electrical network, and another port connects the Single port of described bi-directional DC-DC circuit unit as PFC bus, for the energy of electrical network and the energy of described PFC bus are carried out bi-directional；
The another port of described bi-directional DC-DC circuit unit connects the outfan of described dc bus and described modular converter；For the energy of described PFC bus and the energy of described dc bus are carried out bi-directional.
8. charging system according to claim 1, it is characterised in that described charging system also includes energy-storage units, described energy-storage units connects described dc bus.
9. charging system according to claim 8, it is characterised in that described charging system also includes inversion unit, its input connects dc bus, and its outfan connects electrical network, for being that alternating current feeds back to electrical network by the electricity inversion on dc bus.
10. the charging system according to any one of claim 1-9, it is characterised in that described modular converter output DC voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201620160054.9U CN205407387U (en) | 2016-03-02 | 2016-03-02 | Solar charging system |
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| CN201620160054.9U CN205407387U (en) | 2016-03-02 | 2016-03-02 | Solar charging system |
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| CN205407387U true CN205407387U (en) | 2016-07-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576808A (en) * | 2016-03-02 | 2016-05-11 | 英飞特电子（杭州）股份有限公司 | Solar energy charging system |
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2016
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576808A (en) * | 2016-03-02 | 2016-05-11 | 英飞特电子（杭州）股份有限公司 | Solar energy charging system |
| WO2017148013A1 (en) * | 2016-03-02 | 2017-09-08 | 英飞特电子（杭州）股份有限公司 | Solar charging system |
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