CN202405836U - Photovoltaic charging system and charging station - Google Patents

Photovoltaic charging system and charging station Download PDF

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Publication number
CN202405836U
CN202405836U CN2012200213589U CN201220021358U CN202405836U CN 202405836 U CN202405836 U CN 202405836U CN 2012200213589 U CN2012200213589 U CN 2012200213589U CN 201220021358 U CN201220021358 U CN 201220021358U CN 202405836 U CN202405836 U CN 202405836U
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CN
China
Prior art keywords
circuit
direct current
electric
cell assembly
accumulator cell
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Expired - Fee Related
Application number
CN2012200213589U
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Chinese (zh)
Inventor
杨海林
彭华良
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ZHUIRI ELECTRICAL CO Ltd SHANGHAI
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ZHUIRI ELECTRICAL CO Ltd SHANGHAI
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Priority to CN2012200213589U priority Critical patent/CN202405836U/en
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Publication of CN202405836U publication Critical patent/CN202405836U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers

Abstract

The utility model discloses a photovoltaic charging system, which comprises a solar battery assembly, a storage battery assembly, a first direct current to direct current (DC/DC) circuit, a first DC to alternating current (DC/AC) circuit, a second DC/AC circuit and a second DC/DC circuit, wherein the first DC/DC circuit is used for charging the storage battery assembly by using direct current which is output by the solar battery assembly; the first DC/AC circuit is used for converting the direct current into alternating current and supplying the alternating current into alternating current electric equipment and/or an alternating current grid; the second DC/AC circuit is used for converting the direct current which is output by the storage battery assembly into the alternating current and supplying the alternating current into the alternating current electric equipment and/or the alternating current grid; and the second DC/DC circuit is used for converting the direct current which is output by the storage battery assembly into the direct current and supplying the direct current into direct current electric equipment. The utility model also discloses a charging station. By adoption of the photovoltaic charging system and the charging station, solar energy and a secondary battery are utilized, a convenient charging mode is provided for the direct current electric equipment, and the stored energy of the secondary battery is fully utilized.

Description

Photovoltaic charged system and charging station
Technical field
The utility model relates to a kind of photovoltaic charged system and charging station, particularly relates to photovoltaic charged system and charging station that a kind of electrokinetic cell echelon is utilized.
Background technology
In country " the 12 " planning the new forms of energy pure electric automobile as developing direction, new-energy automobile develops and to present good momentum, along with the electric automobile fast development, the charging station that matches with electric automobile is just becoming a kind of new industry.China's electric power resource is in short supply, certainly will will find a kind of novel solution charging electric vehicle way.
Because electric power resource is in short supply, the echelon utilization of electrokinetic cell also will be an important step that improves the comprehensive utilization of energy rate.According to the pertinent regulations of country, the actual capacity of electric powered motor storage battery decline to its nominal capacity 80% after, should eliminate.After the electric automobile large-scale application, the power accumulator of having eliminated remains a great riches, can play a significant role aspect the electrical network stored energy application.
Thus, expectation can be found does not a kind ofly increase the electricity consumption burden, can utilize the power accumulator of having eliminated and be convenient to the charging system and the charging station of charging electric vehicle.
The utility model content
The technical problem that the utility model will solve is not increase extra electricity consumption burden in order to overcome the defective that electric automobile in the prior art does not have supporting charging station, power accumulator to be not fully utilized after eliminating, to provide a kind of, make the power accumulator of eliminating be fully used, be convenient to the photovoltaic charged system and the charging station of electric automobile and other AC electric equipments and direct-flow electricity utilization apparatus charging.
The utility model solves above-mentioned technical problem through following technical proposals:
A kind of photovoltaic charged system; Its characteristics are; It comprises: be used for solar energy converting is electric energy, also converts this electric energy into solar module, accumulator cell assembly, a DC/DC (DC-DC) circuit, the 2nd DC/DC circuit, a DC/AC (direct current is delivered stream) circuit, the 2nd DC/AC circuit that direct current is exported; Wherein
The one DC/DC circuit is used to utilize the direct current of this solar module output to be this accumulator cell assembly charging;
The one DC/AC circuit is used for the direct current of this solar module output is converted into alternating current and this alternating current is sent into an AC electric equipment and/or an electrical network; That is to say; The alternating current of conversion gained can directly provide power supply for this AC electric equipment; The generating that also can be connected to the grid, the operating pressure in tradition power plant when alleviating peak of power consumption;
The 2nd DC/AC circuit is used for the direct current of this accumulator cell assembly output is converted into alternating current and this alternating current is sent into this AC electric equipment and/or this electrical network; That is to say; The alternating current of conversion gained can directly provide power supply for this AC electric equipment; The generating that also can be connected to the grid, the operating pressure in tradition power plant when alleviating peak of power consumption;
The 2nd DC/DC circuit is used for the direct current of this accumulator cell assembly output of direct current conversion and will sends into a direct current power consumption equipment through the direct current of conversion, and the DC-DC here is to be fit to the direct current that this direct-flow electricity utilization apparatus uses and to think that this direct-flow electricity utilization apparatus provides working power for the direct current with this accumulator cell assembly output converts to;
Wherein, for example illuminator or other life industrial electricity apparatus of this AC electric equipment; This direct-flow electricity utilization apparatus is electric automobile for example; This photovoltaic charged system can utilize the electric energy of solar energy converting gained and the second use of accumulator cell assembly to be charging electric vehicle thus, has made full use of electric power resource under the situation that or else increases the weight of to bear in traditional power plant.
Preferably, this photovoltaic charged system also comprises a supervising device, is used to monitor following one or more: the dc voltage of this solar module output, direct current electric current, the electric weight of this accumulator cell assembly, the electric network information of this electrical network.The user can carry out assigning of control command through the monitored results of supervising device, or carries out the setting of program in advance, when monitored results satisfies a certain condition, assigns control command automatically.
Preferably, this photovoltaic charged system also comprises a control device, is used for showing that at this electric network information line voltage is crossed low or net capacity is launched a DC/AC circuit and/or the 2nd DC/AC circuit when not enough so that this alternating current is sent into this electrical network.Be that power consumption is bigger, when the output in traditional power plant can't be satisfied the electricity consumption needs, this photovoltaic charged system converts the output of solar module and accumulator cell assembly to alternating current output and directly is connected to the grid with the electricity consumption situation of keeping tensions down.
Preferably, this control device also is used for this accumulator cell assembly is discharged realizing the adjusting of this electric network active power or the adjusting of reactive power to control the 2nd DC/AC circuit according to this electric network information of gathering.
Preferably; This control device also is used for when this AC electric equipment is activated, launching a DC/AC circuit and/or the 2nd DC/AC circuit thinks that this AC electric equipment provides working power; And/or; This control device also is used for when this direct-flow electricity utilization apparatus is activated, launching the 2nd DC/DC circuit and thinks that this direct-flow electricity utilization apparatus provides working power, perhaps for example to the charging of other direct-flow electricity utilization apparatus such as electric automobile.
Preferably, this control device also is used for when the electric weight of this accumulator cell assembly is lower than a threshold value, launching a DC/DC circuit to control the charging of this solar module to this accumulator cell assembly.
Preferably, this alternating current and this electrical network same frequency, same-phase.
Preferably; This accumulator cell assembly comprises BMS (BATTERY MANAGEMENT SYSTEM; Battery management system), BMS is the tie between battery and the user, mainly to liking secondary cell; Because it is some shortcomings below secondary cell exists, few like stored energy, the life-span short, problem is used in connection in series-parallel, safety in utilization, battery electric quantity estimation difficulty etc.The performance of battery is very complicated, and dissimilar battery behaviors also differ greatly.BMS mainly is exactly in order to improve the utilance of battery, prevents that battery from occurring overcharging and overdischarge, prolongs the useful life of battery, the state of monitoring battery.In addition, this accumulator cell assembly also can comprise charged lithium cells.
Preferably, a DC/AC circuit includes inverter to accomplish the conversion of direct current to alternating current with the 2nd DC/AC circuit.Wherein, the concrete realization of delivering stream of above-mentioned DC-DC, direct current can select suitable DC controller, inverter to realize by those skilled in the art.
The utility model also provides a kind of charging station, and its characteristics are that this charging station comprises aforesaid photovoltaic charged system.Thus; This charging station not only can satisfy the charging needs of direct-flow electricity utilization apparatus such as electric automobile; Can also be for AC electric equipment (for example illuminator) provide working power, in addition, in the bigger period of power consumption; This charging station can also convert the output of solar module and accumulator cell assembly to alternating current and be connected to the grid, even at the electric energy with this accumulator cell assembly of energy-storage function also capable of using at night.
The positive progressive effect of the utility model is: the photovoltaic charged system and the charging station of the utility model have utilized solar energy and secondary cell; The multiple path of DC/AC and DC/DC is provided; Be not merely the charging modes that direct-flow electricity utilization apparatus such as electric automobile are provided convenience; Also made full use of the energy storage of solar energy and secondary cell, can generate electricity by way of merging two or more grid systems for AC electric equipment (for example illuminator) provides working power and provides when the power consumption excess load.In addition, this charging station has guaranteed user's electricity consumption from many aspects, and adopts clean energy resource fully, can not cause extra pollution.
Description of drawings
Fig. 1 is the structured flowchart of the photovoltaic charged system of the utility model one embodiment.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to specify the technical scheme of the utility model.
With reference to figure 1, the described photovoltaic charged system of the utility model comprises: be used for solar energy converting be electric energy, and the solar module 1 that converts this electric energy into direct current output (for example; The solar module installed capacity is 10kWp; Can realize maximal power tracing), accumulator cell assembly 2 (for example, battery energy storage capacity 40kWh, life-spans 1500 circulation (80%DOD; Depth of round; Each discharge cycles can be emitted capacity), this accumulator cell assembly also can suck energy from electrical network and charge for self, can release energy to electrical network through combining inverter again), a DC/DC circuit 3, the 2nd DC/DC circuit 4, a DC/AC circuit 5, the 2nd DC/AC circuit 6; Wherein
The one DC/DC circuit 3 is used to utilize the direct current of this solar module 1 output to be these accumulator cell assembly 2 chargings;
The one DC/AC circuit 5 is used for the direct current of this solar module output is converted into alternating current and this alternating current is sent into an AC electric equipment 7 and/or an electrical network; That is to say; The alternating current of conversion gained can directly provide power supply for this AC electric equipment 7; The generating that also can be connected to the grid, the operating pressure in tradition power plant when alleviating peak of power consumption;
The 2nd DC/AC circuit 6 is used for the direct current of this accumulator cell assembly 2 outputs is converted into alternating current and this alternating current is sent into this AC electric equipment 7 and/or this electrical network; That is to say; The alternating current of conversion gained can directly provide power supply for this AC electric equipment 7; The generating that also can be connected to the grid, the operating pressure in tradition power plant when alleviating peak of power consumption;
The 2nd DC/DC circuit 4 is used for the direct current of these accumulator cell assembly 2 outputs of direct current conversion and will sends into a direct current power consumption equipment 8 through the direct current of conversion; The DC-DC here is to be fit to direct current that this direct-flow electricity utilization apparatus 8 uses for these direct-flow electricity utilization apparatus 8 electricity consumptions for the direct current with 2 outputs of this accumulator cell assembly converts to; In the present embodiment; This direct-flow electricity utilization apparatus 8 is an electric automobile, and it is this charging electric vehicle that the 2nd DC/DC circuit 4 utilizes the electric weight in this accumulator cell assembly 2;
Wherein, for example illuminator or other life industrial electricity apparatus of this AC electric equipment 7; And should be provided for this direct-flow electricity utilization apparatus 8 through the direct current of conversion; This photovoltaic charged system can utilize the electric energy of solar energy converting gained and the second use of accumulator cell assembly to be charging electric vehicle thus, has made full use of electric power resource under the situation that or else increases the weight of to bear in traditional power plant.
In addition, this photovoltaic charged system also comprises a supervising device (not shown), is used to monitor following one or more: dc voltage, direct current electric current, the electric weight of this accumulator cell assembly 2, the electric network information of this solar module 1 output.The user can carry out assigning of control command through the monitored results of supervising device, or carries out the setting of program in advance, when monitored results satisfies a certain condition, assigns control command automatically, for example: night this accumulator cell assembly 2 carry out inversion discharge; Perhaps cross low or city's capacitance when not enough when line voltage, accumulator cell assembly 2 also discharges to be connected to the grid; Perhaps, need be when charging to this direct-flow electricity utilization apparatus 8 (for example electric automobile), this accumulator cell assembly 2 also discharges so that electric automobile is charged after receiving charging instruction.The object of monitoring is not limited to the above-mentioned part of mentioning.
Automatically control for ease, this photovoltaic charged system also comprises a control device (not shown), is used for crossing low or net capacity is launched a DC/AC circuit 5 and/or the 2nd DC/AC circuit 6 when not enough so that this alternating current is sent into this electrical network at line voltage.Be that power consumption is bigger, when the output in traditional power plant can't be satisfied the electricity consumption needs, this photovoltaic charged system converts the output of solar module 1 and accumulator cell assembly 2 to alternating current output and directly is connected to the grid with the electricity consumption situation of keeping tensions down.
In addition, this control device also is used for discharging and realizing the adjusting of this electric network active power or the adjusting of reactive power to control 6 pairs of these accumulator cell assemblies 2 of the 2nd DC/AC circuit according to this electric network information of gathering.
Perhaps; This control device also is used for when this AC electric equipment 7 is activated, launching a DC/AC circuit 5 and/or the 2nd DC/AC circuit 6; And/or this control device also is used for when this direct-flow electricity utilization apparatus 8 is activated, launching the 2nd DC/DC circuit 4 with the charging of control to this direct-flow electricity utilization apparatus 8 (for example electric automobile).
In addition, this control device also is used for when the electric weight of this accumulator cell assembly 2 is lower than a threshold value, launching a DC/DC circuit 3 to control the charging of 1 pair of this accumulator cell assembly 2 of this solar module.In addition; This control device can also be coordinated to charge, the power output of battery energy storage, solar module; Can realize distributed power supply system (small-scale electric power system; Big mains supply system replenishes) control guarantee safety with island detection, checking breaks away from the possibility that leaves network operation of electrical network.
Wherein, this alternating current and this electrical network same frequency, same-phase.
In addition, this accumulator cell assembly 2 comprises BMS, and this accumulator cell assembly also can comprise charged lithium cells, and this lithium battery can be accomplished in half an hour, to charge 40%, and SOC (battery energy storage residual capacity) is between 20~80%), temperature conditions satisfies outdoor low temperature environment.
Specifically, a DC/AC circuit 5 includes inverter to accomplish the conversion of direct current to alternating current with the 2nd DC/AC circuit 6.Wherein, the concrete realization of delivering stream of above-mentioned DC-DC, direct current can select suitable DC controller, inverter to realize by those skilled in the art.
In addition, the utility model also provides a kind of charging station, comprises aforesaid photovoltaic charged system.Thus; This charging station not only can satisfy the charging needs of direct-flow electricity utilization apparatus such as electric automobile; Can also be for AC electric equipment (for example illuminator) provide working power, in addition, in the bigger period of power consumption; This charging station can also convert the output of solar module and accumulator cell assembly to alternating current and be connected to the grid, even at the electric energy with this accumulator cell assembly of energy-storage function also capable of using at night.
The photovoltaic charged system and the charging station of the utility model; On the one hand can the newly-increased power load in equilibrium charging station; Thereby the mains supply capacity is not constituted new demand; Reduce required investment and the construction work of electrical network increase-volume, can perform sufficient technological reserve for " intelligent grid " in future on the one hand in addition.
Though more than described the embodiment of the utility model, it will be understood by those of skill in the art that these only illustrate, the protection range of the utility model is limited appended claims.Those skilled in the art can make numerous variations or modification to these execution modes under the prerequisite of principle that does not deviate from the utility model and essence, but these changes and modification all fall into the protection range of the utility model.

Claims (10)

1. photovoltaic charged system; It is characterized in that; It comprises: be used for solar energy converting is electric energy, also converts this electric energy into solar module, accumulator cell assembly, a DC/DC circuit, the 2nd DC/DC circuit, a DC/AC circuit, the 2nd DC/AC circuit that direct current is exported; Wherein
The one DC/DC circuit is used to utilize the direct current of this solar module output to be this accumulator cell assembly charging;
The one DC/AC circuit is used for the direct current of this solar module output is converted into alternating current and this alternating current is sent into an AC electric equipment and/or an electrical network;
The 2nd DC/AC circuit is used for the direct current of this accumulator cell assembly output is converted into alternating current and this alternating current is sent into this AC electric equipment and/or this electrical network;
The 2nd DC/DC circuit is used for the direct current of this accumulator cell assembly output of direct current conversion and will sends into a direct current power consumption equipment through the direct current of conversion.
2. photovoltaic charged system as claimed in claim 1; It is characterized in that; This photovoltaic charged system also comprises a supervising device, is used to monitor following one or more: the dc voltage of this solar module output, direct current electric current, the electric weight of this accumulator cell assembly, the electric network information of this electrical network.
3. photovoltaic charged system as claimed in claim 2; It is characterized in that; This photovoltaic charged system also comprises a control device, is used for showing that at this electric network information line voltage is crossed low or net capacity is launched a DC/AC circuit and/or the 2nd DC/AC circuit when not enough so that this alternating current is sent into this electrical network.
4. photovoltaic charged system as claimed in claim 3; It is characterized in that this control device also is used for according to this electric network information control the 2nd DC/AC circuit this accumulator cell assembly being discharged and realizes the adjusting of this electric network active power or the adjusting of reactive power.
5. photovoltaic charged system as claimed in claim 3; It is characterized in that; This control device also is used for when this AC electric equipment is activated, launching a DC/AC circuit and/or the 2nd DC/AC circuit; And/or this control device also is used for when this direct-flow electricity utilization apparatus is activated, launching the 2nd DC/DC circuit.
6. photovoltaic charged system as claimed in claim 3 is characterized in that, this control device also is used for when the electric weight of this accumulator cell assembly is lower than a threshold value, launching a DC/DC circuit to control the charging of this solar module to this accumulator cell assembly.
7. like any described photovoltaic charged system among the claim 1-6, it is characterized in that this alternating current and this electrical network same frequency, same-phase.
8. like any described photovoltaic charged system among the claim 1-6, it is characterized in that this accumulator cell assembly comprises BMS, and/or this accumulator cell assembly comprises charged lithium cells.
9. like any described photovoltaic charged system among the claim 1-6, it is characterized in that a DC/AC circuit includes inverter with the 2nd DC/AC circuit.
10. a charging station is characterized in that, this charging station comprises like any described photovoltaic charged system among the claim 1-9.
CN2012200213589U 2012-01-17 2012-01-17 Photovoltaic charging system and charging station Expired - Fee Related CN202405836U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012200213589U CN202405836U (en) 2012-01-17 2012-01-17 Photovoltaic charging system and charging station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012200213589U CN202405836U (en) 2012-01-17 2012-01-17 Photovoltaic charging system and charging station

Publications (1)

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CN202405836U true CN202405836U (en) 2012-08-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103208825A (en) * 2012-01-17 2013-07-17 上海追日电气有限公司 Photovoltaic charging system and charging station
CN107069911A (en) * 2017-02-28 2017-08-18 绍兴蓝能光伏科技有限公司 A kind of charging pile system and its control method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103208825A (en) * 2012-01-17 2013-07-17 上海追日电气有限公司 Photovoltaic charging system and charging station
CN107069911A (en) * 2017-02-28 2017-08-18 绍兴蓝能光伏科技有限公司 A kind of charging pile system and its control method
CN107069911B (en) * 2017-02-28 2020-08-04 浙江蓝特新能源科技股份有限公司 Charging pile system and control method thereof

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120829

Termination date: 20210117