CN209488191U - A kind of photovoltaic energy storage charging system for vehicle charging station - Google Patents
A kind of photovoltaic energy storage charging system for vehicle charging station Download PDFInfo
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- CN209488191U CN209488191U CN201821928692.6U CN201821928692U CN209488191U CN 209488191 U CN209488191 U CN 209488191U CN 201821928692 U CN201821928692 U CN 201821928692U CN 209488191 U CN209488191 U CN 209488191U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A kind of photovoltaic energy storage charging system for vehicle charging station, mainly includes DC bus, photovoltaic module, energy-storage battery and charging unit.Since DC bus is connect with photovoltaic module, DC bus is allowed to directly acquire photovoltaic electric energy, new energy source is provided for existing vehicle charging station, it not only can solve the problem of power grid is configured in limited land resource, by energy stores and the production of realization indigenous energy can also be distributed rationally and use energy balancing the load, the electric energy pattern of electric automobile charging station can also be enriched；Further, since photovoltaic module has clean and effective, lays convenient advantage, the place space that charging station is compact can be made full use of, plays the economic benefit of photovoltaic energy to the maximum extent.
Description
Technical field
The present invention relates to new energy charging technique fields, and in particular to a kind of photovoltaic energy storage charging for vehicle charging station
System.
Background technique
Electric car is currently a popular most wide, the energy-saving and environment-friendly Green Travel vehicles, the matched battery of electric vehicle
Primary charging is frequently necessary to 5-8 hours, once traveling will make driving people fall into awkward condition on the way without electric energy.For this purpose, needing
" electric automobile charging station " is laid as filling station, along the street shop, Street Community, by newsstand, storage shed, stop
Parking lot etc. setting.It is envisioned that popularizing with charging station, automobile user is no longer because out of power and worried on the way, no longer
It dare not be gone on a long journey because of not enough power supply, convenience can be brought conscientiously for the public.
Currently, the mode that electric automobile charging station mostly uses power grid to access, is rectified into suitable electric car charging requirement
DC voltage.So, previous electric automobile charging station is faced with that land resource is insufficient, electric energy access way is single or power grid connects
Enter difficult problem, in this way, seriously constraining the distribution density of charging station, also reduces user and body is used to electric car
It tests, is unfavorable for the further development of new-energy automobile industry.
Summary of the invention
The present invention solves the technical problem of how to change, existing electric automobile charging station electric energy access way is single
Situation.In order to solve the above technical problems, the application provides a kind of photovoltaic energy storage charging system for vehicle charging station, packet
It includes:
DC bus；
Photovoltaic module is connect with the DC bus, for providing photovoltaic electric energy for the DC bus；
Energy-storage battery is connect with the DC bus, is used for storing electrical energy；
Charging unit is connect with the DC bus, for will the power output on the DC bus to access described in
The charging equipment of charging unit.
The photovoltaic energy storage charging system further includes bidirectional transducer, and the bidirectional transducer includes DC terminal and exchange
End, the DC terminal are connect with the DC bus, and the exchange end is used to connect external AC network, the bi-directional conversion
Device is for exporting the DC inverter on the DC bus to the AC network, or by the friendship on the AC network
Galvanic electricity rectification is exported to the DC bus.
Power transformer is equipped between the bidirectional transducer and the AC network, the power transformer is in the future
The alternating voltage of the AC network requirement is depressurized to from the alternating current in the bidirectional transducer, or will be from the exchange
The alternating current of power grid boosts to the alternating voltage of the bidirectional transducer requirement.
AC circuit breaker and/or A.C. contactor are equipped between the power transformer and the AC network.
The first pressure regulation convertor circuit, the first pressure regulation unsteady flow electricity are equipped between the photovoltaic module and the DC bus
Road is used to be converted in the direct current that the photovoltaic module exports the voltage of the DC bus requirement.
The second pressure regulation convertor circuit, the second pressure regulation unsteady flow electricity are equipped between the charging unit and the DC bus
Road is used to be converted in the direct current on the DC bus voltage/current of the charging equipment requirement.
The energy-storage battery includes power battery.
Battery charge and discharge control circuit, the battery charge and discharge control electricity are equipped between the energy-storage battery and the DC bus
Road is used to control the charged state and discharge condition of the energy-storage battery.
The photovoltaic energy storage charging system further includes logic controller, the logic controller and the bidirectional transducer,
The first pressure regulation translation circuit, the second pressure regulation translation circuit and/or battery charge and discharge control circuit connection, for supervising
Survey and control the working condition of the photovoltaic energy storage charging system.
It mainly include direct current mother according to a kind of photovoltaic energy storage charging system for vehicle charging station of above-described embodiment
Line, photovoltaic module, energy-storage battery and charging unit.In a first aspect, since DC bus is connect with photovoltaic module, so that direct current is female
Line can directly acquire photovoltaic electric energy, and new energy source is provided for existing vehicle charging station, not only can solve limited soil
In ground resource the problem of configuration power grid, moreover it is possible to by energy stores and distribute the production of realization indigenous energy rationally and be put down with energy load
Weighing apparatus, can also enrich the electric energy pattern of electric automobile charging station；Second aspect, since photovoltaic module has clean and effective, laying
Convenient advantage can make full use of the place space that charging station is compact, play the economic benefit of photovoltaic energy to the maximum extent；The
Energy-storage battery based on power battery is accessed DC bus by three aspects, so that DC bus exports electricity by charging unit
It also can be power battery charging while energy, easily replace power battery in charging station conducive to user；Fourth aspect, by
In being provided with bidirectional transducer, so that can quickly carry out electric energy conversion and transfer between AC network and DC bus, protect
The high efficiency of utilization of power is demonstrate,proved；5th aspect, since the first pressure regulation convertor circuit, the second pressure regulation convertor circuit is arranged, so that
Electric energy conversion process can be smoothly realized between photovoltaic module, charging unit and DC bus, filled conducive to photovoltaic energy storage is met
The safety in operation and stability of electric system；6th aspect, forms charging pile due to integrate to all modules, so that
It is formed by charging pile and has advantage feature-rich, compact-sized, that land occupation is few, be conducive to promote and apply in vehicle charging station.
Detailed description of the invention
Fig. 1 is a kind of structure chart of photovoltaic energy storage charging system in embodiment；
Fig. 2 is a kind of circuit diagram of photovoltaic energy storage charging system in embodiment；
Fig. 3 is the structure chart of photovoltaic energy storage system in another embodiment.
Specific embodiment
Below by specific embodiment combination attached drawing, invention is further described in detail.Wherein different embodiments
Middle similar component uses associated similar element numbers.In the following embodiments, many datail descriptions be in order to
The application is better understood.However, those skilled in the art can recognize without lifting an eyebrow, part of feature
It is dispensed, or can be substituted by other elements, material, method in varied situations.In some cases, this Shen
Please it is relevant it is some operation there is no in the description show or describe, this is the core in order to avoid the application by mistake
More descriptions are flooded, and to those skilled in the art, these relevant operations, which are described in detail, not to be necessary, they
Relevant operation can be completely understood according to the general technology knowledge of description and this field in specification.
It is formed respectively in addition, feature described in this description, operation or feature can combine in any suitable way
Kind embodiment.Meanwhile each step in method description or movement can also can be aobvious and easy according to those skilled in the art institute
The mode carry out sequence exchange or adjustment seen.Therefore, the various sequences in the description and the appended drawings are intended merely to clearly describe a certain
A embodiment is not meant to be necessary sequence, and wherein some sequentially must comply with unless otherwise indicated.
It is herein component institute serialization number itself, such as " first ", " second " etc., is only used for distinguishing described object,
Without any sequence or art-recognized meanings.And " connection ", " connection " described in the application, unless otherwise instructed, include directly and
It is indirectly connected with (connection).
Referring to FIG. 1, the application provides a kind of photovoltaic energy storage charging system 1 for vehicle charging station, the photovoltaic energy storage
Charging system mainly includes DC bus 11, photovoltaic module 12, energy-storage battery 13 and charging unit 14, is illustrated separately below.
DC bus 11 belongs to individual collection of energy/feedback as the common DC bus in common electrical equipment
Device can provide the DC power supply of certain power for relevant device.When relevant device work is when with electricity condition, from direct current mother
Electric energy is obtained on line；When relevant device work is in generating state, energy transmission to bus and it is fed back to power grid or battery, to reach
To energy conservation, improve the purpose of relevant device operational reliability, reduction relevant device maintenance and reduction occupation area of equipment.Direct current
The voltage of bus 11 can be set according to demand and freely, in the present embodiment, the voltage of DC bus 11 can be set in 600~
In the range of 850V, it is therefore preferable to 750V.
Photovoltaic module 12 is connect with DC bus 11, for providing photovoltaic electric energy for DC bus 11.Photovoltaic module 12 (or
Referred to as solar panel) it is core in solar power system, effect is to convert solar energy into electrical energy, and send
It is stored into battery, or pushes loaded work piece.In the present embodiment, photovoltaic module 12 can be constituted in series and parallel
Photovoltaic array forms the photovoltaic electric energy output state of high voltage, higher-wattage to improve the generating effect of photovoltaic module.
Further, the first pressure regulation convertor circuit 121, first pressure regulation are equipped between photovoltaic module 12 and DC bus 11
Convertor circuit 121 is used to the direct current that photovoltaic module 12 exports being converted to the voltage that DC bus 11 requires.
It should be noted that the first pressure regulation convertor circuit 121 here can be common direct current regulation circuit, what pressure regulation referred to
It is the size for adjusting output voltage, unsteady flow refers to the size of electric current in adjustment circuit.In one embodiment, see Fig. 3, the
Buck circuit can be used in one pressure regulation convertor circuit 121, from circuit structure as can be seen that diode, inductance and capacitor form low pass
Filter allows DC component that can pass through, and harmonic component is inhibited to pass through, so that the voltage and current that photovoltaic module 11 exports
It is effectively adjusted, achievees the effect that pressure regulation unsteady flow.Further, it is also possible in the first pressure regulation convertor circuit 121 and photovoltaic module 12
Between setting protection and measuring equipment 122, such as high-voltage relay, air switch, fuse, voltage/current table, power meter
Deng, realize electric energy detection and abnormal case tripping operation, the safe operation of relevant device in route is effectively ensured.
Energy-storage battery 13 is connect with DC bus 11, is used for storing electrical energy.Here energy-storage battery 13 be primarily referred to as using
In the battery of steam-electric power plant, electric car, new-energy automobile and renewable energy the savings energy.In this implementation
In example, energy-storage battery 13 includes mainly power battery, and power battery is the power supply in powered tools source, refers to be electronic more
Automobile, electric train, electric bicycle, golf cart provide the battery of power, it may include lead-acid accumulator, ni-Cd electric power storage
Pond, nickel hydrogen storage battery, iron-nickel storage battery, sodium chlorination ickel accumulator, silver-zinc storage battery, sodium sulfur storage battery, lithium storage battery, zinc air
Battery, aluminium-air cell etc..
Further, battery charge and discharge control circuit 131, battery charge and discharge control are equipped between energy-storage battery 13 and DC bus 11
Circuit 131 processed is used to control the charged state and discharge condition of energy-storage battery 13.In one embodiment, battery charge and discharge controls
Circuit 131 may include voltage and current sample circuit and ON-OFF control circuit, by comparing on route voltage or electric current judge
The charged state or discharge condition of energy-storage battery 13, and then in transition charge and discharge, control switch is disconnected, and plays protection energy storage electricity
The effect in pond 13.
It should be noted that the power battery for needing to charge is more for the charging station of electric car, therefore, can incite somebody to action
These power batteries combine to form power battery matrix to charge, and battery charging and discharging control electricity is all arranged in each charging paths
Road 131, to reach the application scenarios of the unified charging of multiple power batteries.
Charging unit 14 is connect with DC bus 141, for by the power output on DC bus 11 to accessing charging part
The charging equipment of part 14.In the present embodiment, charging unit 14 may include the output of the electric power such as charging gun, charging plug, charging needle
Port, according to the direct current of the requirement of relevant criterion exportable 750V or 1000V.In addition, charging equipment here can be new
Electric car, track train of energy form etc..
Further, the second pressure regulation convertor circuit is equipped between charging unit 14 and DC bus 11, which becomes
Current circuit 141 is used to be converted in the direct current on DC bus 11 voltage/current of charging equipment requirement.In a specific implementation
Example in, see that buck circuit can be used in Fig. 3, the second pressure regulation convertor circuit 141, from circuit structure as can be seen that diode, inductance and
Capacitor forms low-pass filter, allows DC component that can pass through, and harmonic component is inhibited to pass through, so that DC bus output
Voltage and current is effectively adjusted, and achievees the effect that pressure regulation unsteady flow, ensures the charging security of charging equipment.In addition, may be used also
With between the second pressure regulation convertor circuit 142 and charging unit 14 be arranged protection and measuring equipment 142, such as high-voltage relay,
Air switch, fuse, voltage/current table, power meter etc. are realized the operation of electric energy detection and abnormal case tripping, are effectively protected
Demonstrate,prove the safe operation of relevant device in route.
It should be noted that can be charging unit 14, the second pressure regulation convertor circuit 141, protection and 142 knot of measuring equipment
It closes to form charging pile, is carried out with carrying out electric power output by the second pressure regulation convertor circuit 141 by charging unit 14 as charging gun
Electric power output control, carries out output protection by protection and measuring equipment 142 and power information records.It can also be set for the charging pile
The equipment such as control panel and display screen are set, so that the charging pile is capable of providing a variety of chargings of normal charge or quick charge
Mode, user can be used specific recharged card and swipe the card on the man-machine interactive interface of offer use, to carry out corresponding
Charging modes, the charging time, cost data printing etc. operation, can also be shown by display screen charge volume, expense, charging when
Between etc. data.
Further, photovoltaic energy storage charging system 1 further includes bidirectional transducer 151, which includes direct current
It holds and exchanges end (not illustrating in figure), DC terminal is connect with DC bus 11, and exchange end is used to connect external AC network 15,
Bidirectional transducer 15 is used to export the DC inverter on DC bus 11 to AC network 15, or will be on AC network 15
AC rectification export to DC bus 11.It should be noted that bidirectional transducer 151 can be by the bridge-type based on IGBT device
Circuit constitute, realize exchange end arrive DC terminal power rectifier function, or realize DC terminal to exchange end power inverter function,
Since bidirectional transducer 151 belongs to the prior art, so being no longer described in detail here.
It should be noted that AC network 15 can be 380V used in everyday three-phase alternating current, mainly by A, B, C this
Three-phase and neutral conductor N are constituted.In one embodiment, see Fig. 3, required to reach electric power adaptation, it can be in bidirectional transducer 151
Power transformer TM is equipped between AC network 15, power transformer TM is used for will be from the exchange of bidirectional transducer 151
Electricity is depressurized to the alternating voltage of the requirement of AC network 15, or will boost to bidirectional transducer from the alternating current of AC network 15
151 desired alternating voltages.In the present embodiment, power transformer TM can realize that the power converter of AC380V and AC600V needs
It asks.In addition, be equipped between power transformer TM and AC network 15 AC circuit breaker QF1 and/or A.C. contactor (KM1,
KM2), it is therefore an objective to meet the needs of abnormal case tripping.
It should be noted that AC circuit breaker QF1 acquires each phase current size with mutual inductor, compared with setting value,
When current anomaly, microprocessor can issue signal, and electronic trip unit band pneumatic operating mechanism is allowed to act.Occur in system
Failure Shi Nengyu protective device and automatic device match, and rapid disengagement failure electric current prevents fault spread, to guarantee system
Safe operation has and is applicable in the strong advantage of high voltage class, arc-extinguishing medium multiplicity, arc extinguishing ability.A.C. contactor (KM1, KM2)
It is commonly applied to electric power, distribution and electricity consumption occasion, it is a kind of automation control electric appliance, is mainly used for frequently switching on or disjunction is handed over
Current circuit can also cut off fault current, big, the remotely operated advantage with control capability.
In another embodiment, referring to FIG. 2, photovoltaic energy storage charging system 1 further includes logic controller 16, here
Logic controller is filled with bidirectional transducer 151, the first pressure regulation translation circuit 121, the second pressure regulation translation circuit 131 and/or battery
The connection of control circuit 131 is put, is mainly used for that the working condition of photovoltaic energy storage charging system 1 is monitored and controlled.In one embodiment,
Logic controller 16 can acquire the voltage of photovoltaic module branch, charging unit branch, energy-storage battery branch and AC network branch
And electric current, the transmission of electricity state of associated branch is judged according to the voltage and current of acquisition, to carry out transmission of electricity control to each branch.
For example, the function of logic controller 16 can be described as: (1) daylight is sufficient, and photovoltaic module generates a large amount of direct currents
Electric energy, logic controller 16 control in the first regulating circuit 121 IGBT device, unstable photovoltaic electric energy are converted to stabilization
Direct current energy to be conveyed to DC bus.(2) control switch that logic controller 16 controls in battery charge-discharge circuit 131 is beaten
It opens to charge to energy-storage battery, control bidirectional transducer 151 enters inverter mode after detection 13 electricity of energy-storage battery saturation, will
Extra electric energy is transmitted to AC network 15 on DC bus 11.(3) when the access of charging unit 14 has charging equipment, logic control
Device 16 processed can obtain vehicle BMS (battery management system) required voltage and current value, root according to the second pressure regulation alternating current circuit 141
The IGBT device work in the second pressure regulation alternating current circuit 141 is controlled according to those potential circuit values, to adjust electric power output process.
(4) logic controller 16 is greater than photovoltaic module 12 in the charge power of the output power and energy-storage battery 13 that obtain charging unit 14
Input power when, bidirectional transducer 151 can be controlled into rectification state, the electric energy on AC network 15 is transmitted to direct current mother
Line 11, for 11 electric energy supplement of DC bus.(5) logic controller 16 is greater than photovoltaic in the output power for judging charging unit 14
When the input power of component 12 and AC network 15, battery charge and discharge control circuit 131 can control to enter discharge condition, so that energy storage
Battery 13 is DC bus electric energy supplement.
It should be noted that logic controller 16 can be the hardware devices such as central controller, computer, server,
Here the function of realizing also all is common control means, belongs to the prior art, therefore here no longer to its structure and work
Principle is described in detail.
It should be noted that can be by DC bus 11, charging unit 12, the first pressure regulation convertor circuit 121, protection and meter
Measure equipment 122, battery charge and discharge control circuit 131, the second pressure regulation convertor circuit 141, protection and measuring equipment 142, bi-directional conversion
Device 151, power converter TM, alternating current circuit device QF1, A.C. contactor (KM1, KM2), logic controller 16 carry out module collection
At forming charging pile with unified combine, so that the charging pile has compact-sized application feature, not only there is AC network
The output port of 15 access interface, charging unit 14, there are also the access interface of photovoltaic module 12, the incoming end of energy-storage battery 13
Mouthful, and then the advantage that the charging pile is feature-rich, compact-sized, land occupation is few is played in the application environment of charging station.In addition, should
Charging pile can also include charging control, information show, communicate, detection of swiping the card, Insulation monitoring, the modules such as lightning protection, due to those
Module belongs to the prior art, therefore is no longer described in detail here.
Use above specific case is illustrated the present invention, is merely used to help understand the present invention, not to limit
The system present invention.For those skilled in the art, according to the thought of the present invention, can also make several simple
It deduces, deform or replaces.
Claims (9)
1. a kind of photovoltaic energy storage charging system for vehicle charging station characterized by comprising
DC bus；
Photovoltaic module is connect with the DC bus, for providing photovoltaic electric energy for the DC bus；
Energy-storage battery is connect with the DC bus, is used for storing electrical energy；
Charging unit is connect with the DC bus, for by the power output on the DC bus to accessing the charging
The charging equipment of component.
2. photovoltaic energy storage charging system as described in claim 1, which is characterized in that it further include bidirectional transducer, it is described two-way
Converter includes that DC terminal is connect with end, the DC terminal is exchanged with the DC bus, and the exchange end is for connecting outside
AC network, the bidirectional transducer for exporting the DC inverter on the DC bus to the AC network,
Or the AC rectification on the AC network is exported to the DC bus.
3. photovoltaic energy storage charging system as claimed in claim 2, which is characterized in that the bidirectional transducer and the alternating current
Power transformer is equipped between net, the power transformer is for will be depressurized to institute from the alternating current of the bidirectional transducer
The alternating voltage of AC network requirement is stated, or is wanted the bidirectional transducer is boosted to from the alternating current of the AC network
The alternating voltage asked.
4. photovoltaic energy storage charging system as claimed in claim 3, which is characterized in that the power transformer and the alternating current
AC circuit breaker and/or A.C. contactor are equipped between net.
5. photovoltaic energy storage charging system as claimed in claim 4, which is characterized in that the photovoltaic module and the DC bus
Between be equipped with the first pressure regulation convertor circuit, the first pressure regulation convertor circuit is used for the direct current that exports the photovoltaic module and turns
It is changed to the voltage of the DC bus requirement.
6. photovoltaic energy storage charging system as claimed in claim 5, which is characterized in that the charging unit and the DC bus
Between be equipped with the second pressure regulation convertor circuit, the second pressure regulation convertor circuit be used for by the DC bus direct current convert
The voltage/current required for the charging equipment.
7. photovoltaic energy storage charging system as claimed in claim 6, which is characterized in that the energy-storage battery includes power battery.
8. photovoltaic energy storage charging system as claimed in claim 7, which is characterized in that the energy-storage battery and the DC bus
Between be equipped with battery charge and discharge control circuit, the battery charge and discharge control circuit be used for control the energy-storage battery charged state and
Discharge condition.
9. photovoltaic energy storage charging system as claimed in claim 8, which is characterized in that it further include logic controller, the logic
Controller and the bidirectional transducer, the first pressure regulation convertor circuit, the second pressure regulation convertor circuit and/or the battery
Charge and discharge control circuit connection, for the working condition of the photovoltaic energy storage charging system to be monitored and controlled.
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| CN111114361A (en) * | 2019-11-14 | 2020-05-08 | 安徽科技学院 | Charging plug management protection system based on internet |
| CN111231728A (en) * | 2020-02-27 | 2020-06-05 | 国网山东省电力公司潍坊供电公司 | Photovoltaic energy storage charging and discharging integrated energy control system and method |
| CN111376777A (en) * | 2020-03-05 | 2020-07-07 | 深圳供电局有限公司 | Micro-grid terminal and interface for charging, exchanging and storing integrated power station |
| CN111599096A (en) * | 2020-06-19 | 2020-08-28 | 深圳市瑞能时代科技有限公司 | Electric motor car intelligence charging system based on two-dimensional code |
| CN111682544A (en) * | 2020-05-19 | 2020-09-18 | 华为技术有限公司 | Power supply device, power supply control system and power supply control method |
| CN113872260A (en) * | 2020-06-30 | 2021-12-31 | 深圳市建筑科学研究院股份有限公司 | Small-sized battery charging and discharging system |
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| CN115848191A (en) * | 2022-12-22 | 2023-03-28 | 深圳时代能创软件科技有限公司 | Charging control system and method for alternating current charging pile of electric automobile |
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