CN107979160A - A kind of photovoltaic energy storage type DC charging column and charging method - Google Patents
A kind of photovoltaic energy storage type DC charging column and charging method Download PDFInfo
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- CN107979160A CN107979160A CN201711442645.0A CN201711442645A CN107979160A CN 107979160 A CN107979160 A CN 107979160A CN 201711442645 A CN201711442645 A CN 201711442645A CN 107979160 A CN107979160 A CN 107979160A
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- 238000007600 charging Methods 0.000 title claims abstract description 111
- 238000004146 energy storage Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 53
- 238000003491 array Methods 0.000 claims abstract description 50
- 230000005611 electricity Effects 0.000 claims description 9
- 239000013589 supplement Substances 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
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- H02J3/383—
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of photovoltaic energy storage type DC charging column, including photovoltaic arrays, controller, counnter attack diode, charging terminal, storage battery, detect control module, two-way inverter, controlling switch S1 and controlling switch S2, the controller input terminal connects photovoltaic arrays, output terminal connects charging terminal by counnter attack diode, the storage battery is connected with controller, two-way inverter one end connection power grid, the other end passes through controlling switch S1 connection storage batteries or the anode by controlling switch S2 connection counnter attack diodes, the detection control module is connected with power grid.The DC charging column possesses anti-reverse charging control structure, can prevent power grid from powering to photovoltaic arrays, reduces security risk.The invention also discloses the charging method using above-mentioned charging column.
Description
Technical field
The invention belongs to photovoltaic energy storage charging technique field, and in particular to a kind of photovoltaic energy storage type DC charging column and charging
Method.
Background technology
With the popularization of the theories such as new energy, low-carbon, acceptance level of the pure electric vehicle in people live is higher and higher.Electricity
Electrical automobile is extremely rapid as a kind of new energy car, development.But it is current, electric automobile charging pile is powered to electronic using power grid
Car charge, pressure is caused to power grid in the electricity consumption period, although while some by the use of solar power generation as supplement, be the failure into
Row anti-reverse charging controls, and can produce security risk to charging pile.
The content of the invention
In order to overcome above the deficiencies in the prior art, it is an object of the invention to provide a kind of photovoltaic energy storage type DC charging
Column, the DC charging column possess anti-reverse charging control structure, can prevent power grid from powering to photovoltaic arrays, reduce security risk.
The present invention also aims to provide one kind to utilize above-mentioned photovoltaic energy storage type DC charging column charging method, this method
Power grid pressure can be alleviated, save electric cost.
Above-mentioned first purpose of the present invention is achieved through the following technical solutions：A kind of photovoltaic energy storage type direct current fills
Electric column, including photovoltaic arrays, controller, counnter attack diode, charging terminal, storage battery, detection control module, two-way inverter,
Controlling switch S1 and controlling switch S2, the controller input terminal connection photovoltaic arrays, the controller it is defeated
Outlet is connected by the counnter attack diode connection charging terminal, the storage battery with the controller, institute
The two-way inverter one end connection power grid stated, the other end is by the storage battery controlling switch S1 connections Suo Shu or passes through institute
The anode for the counnter attack diode described in controlling switch S2 connections stated, the detection control module are connected with power grid.
Photovoltaic energy storage type DC charging column of the present invention uses energy storage type structure, can be to storage battery using solar power generation
Charge, while can also power to power grid in the vacant period, alleviate power grid pressure, save with charging equipment such as electric car
Electric cost；The charging pile possesses anti-reverse charging control structure, can prevent power grid from powering to photovoltaic arrays；Energy storage type charging pile
Storage battery service life is had a great influence by charging times, and the logical construction of science can be such that energy storage type charging pile runs for a long time.
Storage battery one end connection of the present invention controller, the other end pass through the controlling switch S1 connections
The two-way inverter.
The exchange side connection power grid of two-way inverter of the present invention, DC side pass through the controlling switch S1 connections
The storage battery or the anode by the counnter attack diode controlling switch S2 connections Suo Shu.
Detection control module one end of the present invention is connected with power grid and is powered by power grid, the other end and the photovoltaic
Square formation, storage battery, charging terminal, two-way inverter, controlling switch S1 are connected with controlling switch S2, for detecting photovoltaic arrays
Electric current, the voltage of storage battery, the electric current of charging terminal, and for controlling the power of the two-way inverter and the control
The action of system switch S1 and controlling switch S2.
Above-mentioned second purpose of the present invention is achieved through the following technical solutions：The detection control module inspection
When measuring the enough and described charging terminals of power that the photovoltaic arrays are sent and being connected with charging equipment, by described
Photovoltaic arrays charged by the controller and the counnter attack diode to charging equipment；The charging terminal is not
When being connected with charging equipment, the electric energy that the photovoltaic arrays are exported charges to the storage battery, the storage battery
Full of when, power grid is delivered to by the two-way inverter by the controlling switch S2；The detection control module
Detect the underpower that the photovoltaic arrays are sent, and when the charging terminal is connected with charging equipment, by institute
The storage battery stated carries out boost charge by the controller to charging equipment, when the accumulator electric-quantity is relatively low,
Boost charge is carried out to charging equipment by the two-way inverter from power grid；When the charging terminal is not connected with needing
During charging equipment, by the two-way inverter and the controlling switch S1 is closed to the storage battery progress from power grid
Boost charge.
Further, the method that above-mentioned photovoltaic energy storage type DC charging column charges, comprises the following steps：
(1) the detection control module described in detects the enough and described chargings of the power that the photovoltaic arrays are sent
When terminal is connected with charging equipment and is charged, directly pass through two pole of the controller and counnter attack by the photovoltaic arrays
Pipe carries out DC charging；
(2) the detection control module described in detect power that the photovoltaic arrays are sent enough but charging terminal not
When connection charging equipment is charged, the detection control module first judges the whether full electricity of the storage battery；
2.1 when storage battery is fully charged as mentioned, then the controller stops to the storage battery charging, described
Detect control module to close the controlling switch S2, the photovoltaic arrays via controller and counnter attack diode pass through control
Switch S2 flows through the two-way inverter, is reverse into alternating current and is delivered to power grid；
2.2 when storage battery underfill is electric as mentioned, then the controller charges to storage battery, detection control
Module disconnects the controlling switch S2；
(3) the detection control module described in detects that the power that the photovoltaic arrays are sent is relatively low, and connection needs
When charging equipment is charged, whether the detection control module detection accumulator electric-quantity is full of；
3.1 when storage battery is fully charged as mentioned, then the controller adjusts the output power of the storage battery, into
The supplement output of row power；
3.2 when storage battery underfill is electric as mentioned, then the controller stops the storage battery output, by described
Detection control module adjust the DC output power of the two-way inverter, power supplement is carried out by power grid；
(4) the detection control module described in detects that the power that the photovoltaic arrays are sent is relatively low, but is not connected with having
When charging equipment is charged, whether detection control module detection accumulator electric-quantity is full of；
4.1 when storage battery is fully charged as mentioned, then the controller stops the input and output of the storage battery,
Carried out from the photovoltaic arrays by the controller, counnter attack diode and controlling switch S2 through two-way inverter to power grid
Output；
4.2 when storage battery underfill is electric as mentioned, then is closed controlling switch S1 by the detection control module, electricity
Net charges through the two-way inverter to the storage battery.
Compared with prior art, the invention has the advantages that：
(1) photovoltaic energy storage type DC charging column of the present invention has the logical construction of science, can make energy storage type charging pile battery
Avoid more being influenced by charging times, it is ensured that permanent operation；
(2) photovoltaic energy storage type DC charging column of the present invention has anti-reverse charging diode, and power network current can be prevented by inverse
Become device to recoil to photovoltaic arrays, cause security risk；
(3) photovoltaic energy storage type DC charging column of the present invention can make full use of photovoltaic power generation technology, mitigate operation of power networks pressure
Power, reduces cost.
Brief description of the drawings
Fig. 1 is photovoltaic energy storage type DC charging rod structure schematic diagram of the present invention；
Fig. 2 is photovoltaic energy storage type DC charging column workflow schematic diagram of the present invention.
Embodiment
, below will be to embodiment or existing for clearer explanation the embodiment of the present invention or the technical solution of the prior art
Have technology describe needed in attached drawing do one and simply introduce, it should be apparent that, drawings in the following description are only
Some embodiments of the present invention, for those of ordinary skill in the art, can also obtain other attached according to these attached drawings
Figure.
Embodiment 1
As shown in Figure 1, a kind of photovoltaic energy storage type DC charging column provided in this embodiment, including photovoltaic arrays, controller,
Counnter attack diode, charging terminal, storage battery, detection control module, two-way inverter, controlling switch S1 and controlling switch S2, control
Device input terminal processed connects photovoltaic arrays, and output terminal connects charging terminal by counnter attack diode, and storage battery is connected with controller, double
Power grid is connected to inverter one end, the other end is by controlling switch S1 connection storage batteries or passes through controlling switch S2 connections counnter attack two
The anode of pole pipe, detection control module are connected with power grid.
Wherein storage battery one end connection controller, the other end pass through the two-way inverter of controlling switch S1 connections.
The exchange side connection power grid of two-way inverter, DC side are opened by controlling switch S1 connection storage batteries or by control
Close the anode of S2 connection counnter attack diodes.
Detection control module one end is connected with power grid and is powered by power grid, the other end and photovoltaic arrays, storage battery, charging end
Sub, two-way inverter, controlling switch S1 are connected with controlling switch S2, for detect the electric currents of photovoltaic arrays, storage battery voltage,
The electric current of charging terminal, and the action of power and controlling switch S1 and switch S2 for controlling two-way inverter.
Embodiment 2
The method that a kind of above-mentioned photovoltaic energy storage type DC charging column provided in this embodiment charges, including following step
Suddenly：In the case of illumination condition is preferable, detection control module detects that the power that the photovoltaic arrays are sent is enough, and fills
When electric terminal is connected with charging equipment, charged from photovoltaic arrays by controller and counnter attack diode to charging equipment；Fill
When electric terminal has been not connected with charging equipment, the electric energy that photovoltaic arrays are exported charges to storage battery, when storage battery is full of, passes through
Controlling switch S2 is delivered to power grid by two-way inverter；In the case where illumination condition is poor, detection control module detects
The underpower that the photovoltaic arrays are sent, and when the charging terminal is connected with charging equipment, control is passed through by storage battery
Device processed carries out boost charge to charging equipment, when accumulator electric-quantity is relatively low, from power grid by two-way inverter to be charged
Equipment carries out boost charge；When charging terminal has been not connected with charging equipment, by two-way inverter and control is closed by power grid
System switch S1 carries out boost charge to storage battery.
Embodiment 3
As shown in Fig. 2, the method that photovoltaic energy storage type DC charging column provided in this embodiment charges, including following step
Suddenly：
(1) detection control module detects power that photovoltaic arrays are sent enough and charging terminal is connected with to be charged set
For when being charged, directly pass through controller by photovoltaic arrays and counnter attack diode carries out DC charging；
(2) detection control module detects that power that photovoltaic arrays are sent is enough but charging terminal is not connected with to be charged set
For when being charged, detection control module first judges the whether full electricity of storage battery；
2.1 when such as storage battery is fully charged, then controller stops charging to storage battery, and detection control module is by controlling switch S2
Closure, photovoltaic arrays via controller and counnter attack diode flow through two-way inverter by controlling switch S2, it is defeated to be reverse into alternating current
Send to power grid；
During 2.2 such as storage battery underfill electricity, then controller charges to storage battery, and detection control module disconnects controlling switch
S2；
(3) detection control module detects that the power that photovoltaic arrays are sent is relatively low, and is connected with charging equipment progress
During charging, whether detection control module detection accumulator electric-quantity is full of；
3.1 as storage battery it is fully charged when, then controller adjust storage battery output power, carry out power supplement output；
During 3.2 such as storage battery underfill electricity, then controller stops storage battery output, is adjusted by detection control module two-way inverse
Become the DC output power of device, power supplement is carried out by power grid；
(4) detection control module detects that the power that photovoltaic arrays are sent is relatively low, but it is not connected have charging equipment into
During row charging, whether detection control module detection accumulator electric-quantity is full of；
4.1 as storage battery it is fully charged when, then controller stop storage battery input and output, pass through control by photovoltaic arrays
Device, counnter attack diode and controlling switch S2 are exported through two-way inverter to power grid；
During 4.2 such as storage battery underfill electricity, then controlling switch S1 is closed by detection control module, power grid is through two-way inversion
Device charges to storage battery.
It will be apparent to those skilled in the art that technical solution that can be as described above and design, make other various
Corresponding change and deformation, and all these changes and deformation should all belong to the protection domain of the claims in the present invention
Within.
Claims (6)
1. a kind of photovoltaic energy storage type DC charging column, it is characterized in that：Including photovoltaic arrays, controller, counnter attack diode, charging end
Son, storage battery, detection control module, two-way inverter, controlling switch S1 and controlling switch S2, the controller input terminal connect
The photovoltaic arrays are connect, the output terminal of the controller connects the charging terminal by the counnter attack diode,
The storage battery is connected with the controller, and described two-way inverter one end connection power grid, the other end passes through described
The controlling switch S1 connections storage battery or the anode by the counnter attack diode controlling switch S2 connections Suo Shu, institute
The detection control module stated is connected with power grid.
2. photovoltaic energy storage type DC charging column according to claim 1, it is characterized in that：Storage battery one end connection institute
The controller stated, the other end pass through the two-way inverter controlling switch S1 connections Suo Shu.
3. photovoltaic energy storage type DC charging column according to claim 1, it is characterized in that：The exchange of the two-way inverter
Side connects power grid, and DC side connects by the storage battery controlling switch S1 connections Suo Shu or by the controlling switch S2
Connect the anode of the counnter attack diode.
4. photovoltaic energy storage type DC charging column according to claim 1, it is characterized in that：Described detection control module one end
It is connected with power grid and is powered by power grid, the other end and the photovoltaic arrays, storage battery, charging terminal, two-way inverter, control
Switch S1 is connected with controlling switch S2, for detecting the electric current of the electric current of photovoltaic arrays, the voltage of storage battery, charging terminal, and
Action for the power and the controlling switch S1 and controlling switch S2 that control the two-way inverter.
5. a kind of method to be charged using claim 1-4 any one of them photovoltaic energy storage type DC charging columns, it is special
Sign is to comprise the following steps：The detection control module detects that the power that the photovoltaic arrays are sent is enough, and institute
When the charging terminal stated is connected with charging equipment, pass through the controller and the counnter attack two by the photovoltaic arrays
Pole pipe charges to charging equipment；When the charging terminal has been not connected with charging equipment, the photovoltaic arrays are exported
Electric energy charge to the storage battery, when the storage battery is full of, by the controlling switch S2 by described double
Power grid is delivered to inverter；The detection control module detects the underpower that the photovoltaic arrays are sent, and
When the charging terminal is connected with charging equipment, from the storage battery by the controller to charging equipment into
Row boost charge, when the accumulator electric-quantity is relatively low, from power grid by the two-way inverter to charging equipment into
Row boost charge；When the charging terminal has been not connected with charging equipment, by power grid by the two-way inverter simultaneously
The closure controlling switch S1 carries out boost charge to the storage battery.
6. the method that photovoltaic energy storage type DC charging column according to claim 5 charges, it is characterized in that further bag
Include following steps：
(1) the detection control module described in detects the enough and described charging terminals of the power that the photovoltaic arrays are sent
When being connected with charging equipment and being charged, by the photovoltaic arrays directly by the controller and counnter attack diode into
Row DC charging；
(2) the detection control module described in detects that power that the photovoltaic arrays are sent is enough but charging terminal is not connected with
When charging equipment is charged, the detection control module first judges the whether full electricity of the storage battery；
2.1 when storage battery is fully charged as mentioned, then the controller stops to the storage battery charging, the detection
Control module closes the controlling switch S2, and the photovoltaic arrays via controller and counnter attack diode pass through controlling switch
S2 flows through the two-way inverter, is reverse into alternating current and is delivered to power grid；
2.2 when storage battery underfill is electric as mentioned, then the controller charges to storage battery, the detection control module
Disconnect the controlling switch S2；
(3) the detection control module described in detects that the power that the photovoltaic arrays are sent is relatively low, and is connected with to be charged
When equipment is charged, whether the detection control module detection accumulator electric-quantity is full of；
3.1 when storage battery is fully charged as mentioned, then the controller adjusts the output power of the storage battery, carries out work(
Rate supplement output；
3.2 when storage battery underfill is electric as mentioned, then the controller stops the storage battery output, by the inspection
The DC output power that control module adjusts the two-way inverter is surveyed, power supplement is carried out by power grid；
(4) the detection control module described in detects that the power that the photovoltaic arrays are sent is relatively low, but is not connected with needing to be filled
When electric equipment is charged, whether detection control module detection accumulator electric-quantity is full of；
4.1 when storage battery is fully charged as mentioned, then the controller stops the input and output of the storage battery, by institute
The photovoltaic arrays stated are carried out defeated by the controller, counnter attack diode and controlling switch S2 through two-way inverter to power grid
Go out；
4.2 when storage battery underfill is electric as mentioned, then is closed controlling switch S1 by the detection control module, power grid warp
The two-way inverter charges to the storage battery.
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| CN201711442645.0A CN107979160A (en) | 2017-12-27 | 2017-12-27 | A kind of photovoltaic energy storage type DC charging column and charging method |
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Cited By (1)
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| CN110571858A (en) * | 2019-09-27 | 2019-12-13 | 中民新能物联股份有限公司 | Micro-grid system for mobile platform |
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| CN206364572U (en) * | 2016-12-21 | 2017-07-28 | 云南玉溪中汇电力设备有限责任公司 | Multi-functional photovoltaic power generation apparatus |
| CN207573066U (en) * | 2017-12-27 | 2018-07-03 | 广东产品质量监督检验研究院 | A kind of photovoltaic energy storage type DC charging column |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110571858A (en) * | 2019-09-27 | 2019-12-13 | 中民新能物联股份有限公司 | Micro-grid system for mobile platform |
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Application publication date: 20180501 |