CN110365091A - Direct-current micro-grid is with storage control all-in-one machine - Google Patents
Direct-current micro-grid is with storage control all-in-one machine Download PDFInfo
- Publication number
- CN110365091A CN110365091A CN201910627144.2A CN201910627144A CN110365091A CN 110365091 A CN110365091 A CN 110365091A CN 201910627144 A CN201910627144 A CN 201910627144A CN 110365091 A CN110365091 A CN 110365091A
- Authority
- CN
- China
- Prior art keywords
- module
- current
- circuit
- voltage
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004146 energy storage Methods 0.000 claims abstract description 40
- 238000004891 communication Methods 0.000 claims description 17
- 230000005611 electricity Effects 0.000 claims description 17
- 230000005764 inhibitory process Effects 0.000 claims description 10
- 230000009466 transformation Effects 0.000 claims description 7
- 238000005070 sampling Methods 0.000 claims description 6
- 229910052493 LiFePO4 Inorganic materials 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 230000009467 reduction Effects 0.000 claims description 2
- 230000006870 function Effects 0.000 abstract description 7
- 239000004065 semiconductor Substances 0.000 description 18
- 239000003990 capacitor Substances 0.000 description 16
- 238000005286 illumination Methods 0.000 description 10
- 238000004378 air conditioning Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- 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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/02—Arrangements for reducing harmonics or ripples
-
- H02J13/0075—
-
- 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
-
- 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
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of direct-current micro-grids with storage control all-in-one machine, and technical problems to be solved are to improve the safety and efficiency of architecture indoor power supply and control.Direct-current micro-grid of the invention is with storage control all-in-one machine, energy-storage module equipped with safe power supply module and its connection, interface module and intelligent control module, direct current 375V is converted to direct current 48V by safe power supply module, to energy-storage module, interface module, intelligent control module for power supply, the real-time output power of direct current 48V is sent to intelligent control module, energy-storage module is to battery charging, it powers to lighting apparatus, battery group real-time voltage is sent to intelligent control module, interface module is to architecture indoor terminal power supply for electrical equipment, intelligent control module controls battery charging and electric discharge.Compared with prior art, the present invention integrated security direct current supply, energy storage scheduling and electric appliance dispersed intelligence control three kinds of functions and is integrated, realizes that safe power supply, the energy is controllable and intelligent control, improve the safety and efficiency of architecture indoor power supply and control.
Description
Technical field
The present invention relates to a kind of architectural power supply device, the safe power supply control device of especially a kind of building.
Background technique
The device type that architecture indoor terminal electrical equipment (equipment) includes at present has air-conditioning, illumination, electrical equipment.It is existing
The architecture exchange distribution and building automation of technology, using air-conditioning, illumination, electrical equipment different type as unit as separate according to
According to carry out centralized control to building equipment power supply, there are following deficiencies: there are personnel's electrical shock safety is hidden for the power supply of 1. alternating current 220V
Suffer from, architecture indoor electrical equipment have the characteristics that power it is small, using frequent, human contact's frequency is high, when electrical equipment insulation break
It damages and earth leakage protective is not normally functioning, there are the risks of personnel's electric shock when cutting off the power.2. building is point with device type
It is powered every foundation and is unfavorable for realizing the flexible dispatching of building energy, regional area in building with the central controlled mode of building
Air-conditioning, illumination, the cold and hot of regional area, illumination comfort level, power demand are interrelated in the use of electrical equipment and building,
The connection of the energy between each device type has been isolated in the power supply of subset type, and centralized control is also by the same control instruction of the demand of user
Air-conditioner temperature air quantity, switch lamp are such as adjusted, switchs and keeps apart between curtain, is unfavorable for realizing the energy hole plan of high efficient and flexible
Slightly, the safety and efficiency of architectural power supply and control are reduced.
Summary of the invention
The object of the present invention is to provide a kind of direct-current micro-grids with storage control all-in-one machine, and technical problems to be solved are to improve building
The safety and efficiency of indoor power supply and control.
The invention adopts the following technical scheme: a kind of direct-current micro-grid is equipped with safe power supply module, safety with storage control all-in-one machine
Power supply module is connected with energy-storage module, interface module and intelligent control module；
Direct current 375V is converted to direct current 48V voltage by the safe power supply module, respectively to energy-storage module, interface module,
Intelligent control module for power supply, safe power supply module send the real-time output power of direct current 48V to intelligent control module；
The energy-storage module receives the direct current 48V electric energy of safe power supply module, to the battery charging of energy-storage module, stores
Battery pack receives intelligent control module instruction, powers to lighting apparatus；The energy-storage module sends electric power storage to intelligent control module
Pond group real-time voltage；
The interface module receives the direct current 48V electric energy of safe power supply module, to architecture indoor terminal power supply for electrical equipment；
The intelligent control module receive safe power supply module the real-time output power of direct current 48V and battery group it is electric in real time
Pressure controls battery charging and electric discharge.
Direct current 48V voltage is converted to direct current through buck converter by the direct current 48V voltage of safe power supply module of the invention
5V voltage, to intelligent control module for power supply.
The switching circuit 1 of input overvoltage protection and short-circuit protection of the safe power supply module of the invention equipped with sequential connection,
The Electro Magnetic Compatibility circuit 1 of reduction external dc 375V input circuit generation common mode current produces after being limited in input voltage access
The anti-rush of current circuit of raw dash current, inhibition ripple circuit 1, the direct current 375V for reducing direct current 375V voltage ripple are converted into
The full-bridge circuit 1 of direct current 180V, for full-bridge circuit 1 export current filtering filter circuit, direct current 180V to direct current 30V change
Depressor, direct current 30V are converted into the full-bridge circuit 2 of direct current 48V, reduce the electromagnetism for the common mode current that direct current 48V output circuit generates
Compatible circuit 2, the switch for inhibiting ripple circuit 2 and output over-voltage protection and short-circuit protection for reducing direct current 48V voltage ripple
Circuit 2.
Safe power supply module of the invention is equipped with control panel, control switch circuit 1, full-bridge circuit 1, full-bridge circuit 2 and opens
Powered-down road 2 works.
Input voltage measurement element, input voltage are equipped between the positive electrode and negative electrode of 1 input terminal of switching circuit of the invention
Sampled value input control plate；Anode after the input end switch circuit is equipped with input electric cur- rent measure element, input current sampling
It is worth input control plate；Output voltage detecting element, output voltage are equipped between the positive electrode and negative electrode of 2 output end of switching circuit
The anode of sampled value input control plate, the output end is equipped with output electric current measure element, exports current sampling data input control
Plate；The full-bridge circuit 1, filter circuit, transformer and full-bridge circuit 2 are equipped with radiator, examine in spreader surface equipped with temperature
Element is surveyed, by the surface temperature value input control plate of radiator.
Energy-storage module of the invention is equipped with battery group and buck-boost converter, and the battery group uses LiFePO4 list
Battery composes in parallel battery pack, then battery pack battery group in series；The buck-boost converter is equipped with the drop being linked in sequence
The inhibition ripple circuit 3 of low input direct-current 48V voltage ripple, the voltage transformation for being converted into 30~56V of direct current for direct current 48V are complete
Bridge circuit 3, the suppression for inhibiting ripple circuit 4, reducing by 3 output current ripple of full-bridge circuit for reducing output 30~56V voltage ripple
Ripple circuit 5 processed and the fuse for preventing 30~56V output short-circuit.
Buck-boost converter of the invention is equipped with control panel, and control panel controls full-bridge circuit 3 and works.
Control panel of the invention is equipped with battery management module, and battery management module measures series-connected cell in battery group respectively
The voltage of group and the output electric current of battery group send battery group real-time voltage to intelligent control module, receive intelligent control
Module instruction controls the charging of battery group, powers to lighting apparatus.
Intelligent control module of the invention is equipped with RJ45 interface, the intelligence for different direct-current micro-grids with storage control all-in-one machine
Regulate and control the communication between module.
Intelligent control module of the invention is provided with wireless communication module, between Temperature Humidity Sensor and optical sensor
Establish wireless communication connection.
Compared with prior art, the present invention safe power supply module connects energy-storage module, interface mould using safe power supply module
Block and intelligent control module, integrated security direct current supply, energy storage scheduling and electric appliance dispersed intelligence control three kinds of functions and are integrated, real
Existing safe power supply, the energy is controllable and intelligent control, improves the safety and efficiency of architecture indoor power supply and control.
Detailed description of the invention
Fig. 1 is application schematic diagram of the invention.
Fig. 2 is structural schematic diagram of the invention.
Fig. 3 is the circuit diagram of safe power supply module of the invention.
Fig. 4 is energy-storage module circuit diagram of the invention.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and examples.
As shown in Fig. 2, direct-current micro-grid of the invention is equipped with safe power supply module 1, safe power supply module with storage control all-in-one machine
1 is connected with energy-storage module 2, interface module 3 and intelligent control module 5.Safe power supply module 1 is converted to direct current DC375V
DC48V voltage (375V/48V).
The input terminal of safe power supply module 1 is switched and is protected conductor PE line (ground wire), connector 4 and external power supply power supply
DC375V electrical connection.
The DC48V output end of safe power supply module 1 is respectively to the RS-485 interface of energy-storage module 2, the 48V of interface module 3
Interconnecting interface and port, buck converter are powered to the 5V interface of intelligent control module 5, and the RS-485 of safe power supply module 1 connects
Mouth is established through the RS-485 interface of RS-485 line and intelligent control module 5 and is communicated to connect.
The RS-485 interface of energy-storage module 2 and the RS-485 interface of intelligent control module 5 are established and are communicated to connect.
DC48V voltage is converted to DC5V voltage (48V/5V) by buck converter.
As shown in figure 3, safe power supply module 1 uses high power density, low-power consumption, silicon carbide metal-oxide-semiconductor
Field effect transistor M OS connect composition with single-stage isolated resonance circuit LLC, inputs DC375V, exports DC48V.
The switching circuit 1 for metal-oxide-semiconductor Q1 and metal-oxide-semiconductor the Q2 composition that the anode of input power DC375V is concatenated is connected in parallel
Capacitor C1 and series connection inductance L1 the Electro Magnetic Compatibility EMC circuit 1, resistance R and the diode D that constitute be connected in series after with
Switch in parallel constitutes anti-rush of current circuit, is connected in parallel filter capacitor C2, to metal-oxide-semiconductor Q5~metal-oxide-semiconductor Q8 composition full-bridge
Circuit 1.
In full-bridge circuit 1, Q5 is connected across DC375V bus positive and negative polarities after connecting with Q6, the midpoint connection that Q5 is connect with Q6
One end of capacitor C3, Q7 are connected across 375V bus positive and negative polarities after connecting with Q8, the midpoint connection inductance L2's that Q7 is connect with Q8
The other end of one end, C3 and L2 are separately connected the primary side of transformer Tr, and Tr no-load voltage ratio is that 375V: 48V, Tr pair side exports 48V power supply.
The full-bridge circuit 2 of metal-oxide-semiconductor Q9~metal-oxide-semiconductor Q12 composition Tr secondary side, in full-bridge circuit 2, Q9 connect with Q10 after across
Connect in 48V bus positive and negative polarities, Q11 is connected across 48V bus positive and negative polarities after connecting with Q12, midpoint that Q9 is connect with Q10 and
The midpoint that Q11 is connect with Q12 is separately connected the secondary side of transformer Tr.
Inductance of the 48V power supply through full-bridge circuit 2,48V bus positive and negative end the capacitor C4 being connected in parallel and series connection
What the Electro Magnetic Compatibility EMC circuit 2 of L4 composition, filter capacitor C5, the concatenated metal-oxide-semiconductor Q3 being connected in parallel and metal-oxide-semiconductor Q4 were constituted
After switching circuit 2, DC48V power supply is exported.
The gate driving circuit that alive gate driving circuit uses the prior art is applied to metal-oxide-semiconductor Q1~Q12 grid, is used
In the logic level signal of the control panel Control board output of safe power supply module 1 is converted to voltage signal, grid is driven
Dynamic circuit is arranged on control panel, receives the grid after control panel logic level signal to Q1~Q12 and provides different voltage, point
It Kong Zhi not turn-on and turn-off between the source electrode and drain electrode of Q1~Q12.
It is connected in parallel to backward dioded respectively between Q1~Q12 source electrode and drain electrode, for source in 1 circuit of safe power supply module
There are when inductive load between pole and drain electrode, metal-oxide-semiconductor cut-off inductive current cannot be mutated, using diode continuousing flow, to prevent
High-voltage breakdown metal-oxide-semiconductor protects metal-oxide-semiconductor.
2 concentrated setting of filter circuit, transformer Tr and full-bridge circuit that full-bridge circuit 1, capacitor C3 and inductance L2 are constituted,
Filter circuit, transformer Tr and 2 position of full-bridge circuit that full-bridge circuit 1, capacitor C3 and inductance L2 are constituted are equipped with radiator.
In safe power supply module 1, switching circuit 1 guarantees safe power supply for realizing input overvoltage protection and short-circuit protection
The 375V of module 1 inputs safety.Electro Magnetic Compatibility EMC circuit 1 is used to reduce the common mode electricity that external DC375V input circuit generates
Stream improves Electro Magnetic Compatibility.After anti-rush of current circuit is for being limited in 375V voltage access input terminal, charged to C2 and
The dash current of generation.Capacitor C2 is as ripple circuit 1 is inhibited, for reducing DC375V voltage ripple.Full-bridge circuit 1 is used for
DC375V is converted into DC180V voltage transformation.Capacitor C3 and inductance L2 exports electric current filter as filter circuit, for full-bridge circuit 1
Wave.Transformer Tr is depressured for DC180V to DC30V.Full-bridge circuit 2 is converted into DC48V voltage transformation for DC30V.Electromagnetism is simultaneous
Capacitive EMC circuit 2 is used to reduce the common mode current of DC48V output circuit generation.Filter capacitor C5, which is used as, inhibits ripple circuit 2,
For reducing 48V voltage ripple.Switching circuit 2 guarantees safe power supply module 1 for realizing output over-voltage protection and short-circuit protection
48V output safety.
Q5~Q8 forms full-bridge circuit 1, and Q5 is connected across 375V bus positive and negative polarities after connecting with Q6, during Q5 is connect with Q6
Point connection one end capacitor C3, Q7 are connected across 375V bus positive and negative polarities after connecting with Q8, the midpoint that Q7 is connect with Q8 connects inductance
The one end L2；Capacitor C3 connects the primary side of transformer Tr with the L2 other end.Q9~Q12 forms the full-bridge circuit 2 of transformer secondary side,
Q9 is connected across 48V bus positive and negative polarities in full-bridge circuit 2 after connecting with Q10, and Q11 is connected across 48V bus after connecting with Q12 positive and negative
The two poles of the earth, the midpoint that the midpoint and Q11 that Q9 is connect with Q10 are connect with Q12 are separately connected the secondary side of transformer Tr, constitute isolation resonance
Circuit LLC is used for voltage transformation.
Input voltage measurement element V1 is equipped between the positive electrode and negative electrode of input terminal, for measuring input side voltage value,
When input side voltage value is more than 1.3 times of input rated voltage DC375V, then it is assumed that generation overvoltage, control panel sending Q1,
The cut-off signals of Q2 realize input overvoltage protection so that Q1 and Q2 shutdown, cuts off the conducting of 1 input circuit of safe power supply module.
V1 is sampled using the resistor voltage divider circuit of the prior art, input side voltage sample value input control plate.
Anode after input end switch circuit is equipped with input electric cur- rent measure element A1, for measuring input circuit electric current
Value, when input circuit current value is more than 1.15 times of rated current of input, then it is assumed that overcurrent or overload occurs, control panel issues
The cut-off signals of Q5~Q12, so that Q5~Q12 is turned off, safe power supply module 1 stops working, and realizes input circuit overcurrent and mistake
Carry protection.A1 uses HLSP10-P current sensor, input circuit current sampling data input control plate.
It is more than 1.3 times of rated current of input, then it is assumed that short circuit, control panel occurs if A1 measures input circuit current value
The cut-off signals of Q1, Q2 are issued, so that Q1 and Q2 shutdown, realizes short-circuit protection.
It is equipped with temperature detecting element T1 in spreader surface, for measuring the surface temperature of radiator, by the table of radiator
Face temperature value input control plate, when measured temperature is more than the permission temperature value of setting, it is believed that 1 temperature mistake of safe power supply module
Height, control panel issue the cut-off signals of Q5~Q12, so that Q5~Q12 is turned off, safe power supply module 1 stops working, and realize excess temperature
Protection.In the present embodiment, setting allows temperature value as environment temperature+45K, i.e. permission temperature rise.T1 is used
NTCLE100E3123HB0 temperature sensor, sampled value access control panel.Radiator uses aluminum profile, substrate thickness 10mm, ruler
Very little is 80*210mm；Radiating fin height 25mm, thickness 1mm, spacing of fin 5mm.
Output voltage detecting element V2 is equipped between the positive electrode and negative electrode of output end, for measuring output end voltage value,
When output end voltage value is more than 1.3 times of output rated voltage DC48V, then it is assumed that overvoltage occurs, control panel issues Q3, Q4
Cut-off signals so that Q3 and Q4 shutdown, realize output over-voltage protection.V2 is sampled using the resistor voltage divider circuit of the prior art,
Output end voltage sampled value input control plate.
It is equipped with output electric current measure element A2 in the anode of output end, for measuring output circuit current value, when output electricity
Road current value is more than 1.15 times of rated current of output, then it is assumed that overcurrent or overload occurs, control panel issues the shutdown of Q5~Q12
Signal, so that Q5~Q12 is turned off, safe power supply module 1 stops working, and realizes overcurrent and overload protection.A2 uses the prior art
Shunt resistance circuit sampling, output circuit current sampling data input control plate.
It is more than 1.3 times of rated current of output, then it is assumed that short circuit, control panel occurs if A2 measures output circuit current value
The cut-off signals of Q3, Q4 are issued, so that Q3 and Q4 shutdown, realizes short-circuit protection.
Safe power supply module 1 is for realizing DC375V to DC48V transformation.In the present embodiment, the specified change of safe power supply module 1
Change power 2.5kW, specified input direct-current voltage 375~378V, maximum input current 6.7A；Rated output DC voltage 48~
50V, maximum output current 52A, voltage ripple and the precision of voltage regulation are construction area less than 1%, 10 road 48V power output interface
Air-conditioning, illumination, electrical equipment within 80~100 square metres provide stable low-voltage direct safety power supply.
First DC48V output end of safe power supply module 1 is connected to the DC48V input terminal of energy-storage module 2, and (RS-485 connects
Mouthful).
2nd DC48V output end of safe power supply module 1 is connected to 48V interconnecting interface and the port of interface module 3, interface
Module 3 is equipped with 10 road DC48V power output interfaces (port 1~10).
3rd DC48V output end of safe power supply module 1 is connected to the DC48V input terminal of buck converter, decompression conversion
The 5V interface of DC5V output end the connection USB interface and intelligent control module 5 of device.
The side DC48V of safe power supply module 1 is through RS-485 interface, the RS-485 connecting line to intelligence in safe power supply module 1
The RS-485 interface of module 5 can be regulated and controled.
Buck converter uses URF4805LP-20WR3 power module.
First DC48V output end of the input terminal access safe power supply module 1 of energy-storage module 2, for being filled to energy-storage module
Electricity.In the case where the external power supply power supply direct current 375V of safe power supply module 1 power-off, energy-storage module 2 can give lighting apparatus
Power supply.
As shown in figure 4, energy-storage module 2 is equipped with battery group and buck-boost converter.Energy-storage module 2 is for receiving safe confession
The DC48V electric energy of electric module 1 gives battery charging, or receives the instruction of intelligent control module 5, controls battery group to illumination
Equipment power supply.
In the present embodiment, battery group composes in parallel battery pack using the LiFePO4 monocell of 6 3.7V2Ah, then by
13 battery packs battery group in series, as energy-storage battery, the connection between monocell, battery pack is welded using copper foil,
The output end of battery group is connected to 1 tunnel 30~56V interface of buck-boost converter, and the output interface of battery group uses T-type
Fast connecting terminal has error-disable function, hot-swappable.
The DC48V power supply exported from the oneth DC48V output end of safe power supply module 1, through buck-boost converter input terminal, simultaneously
Connection is connected to the inhibition ripple circuit 3 that the capacitor C6 of buck-boost converter input terminal (48V bus) positive and negative anodes is constituted, until Q13~
The full-bridge circuit 3 of Q16 composition, Q13, Q14 of full-bridge circuit 3 are connected in 48V bus positive and negative anodes in parallel after being connected in series, Q15,
Q16 is connected in battery group bus positive and negative anodes, the inhibition that battery group bus positive and negative anodes are connected in parallel in parallel after being connected in series
The suppression of inductance L4 is connected between the midpoint of capacitor C7, Q13 and Q14 connection and the midpoint of Q15 and Q16 connection of ripple circuit 4
Ripple circuit 5 processed is connected in series with fuse F between Q15 and battery group anode.
The gate driving circuit that alive gate driving circuit uses the prior art is applied to metal-oxide-semiconductor Q13~Q16 grid,
For the logic level signal of the control panel 2Control board2 output of buck-boost converter to be converted to voltage signal, grid
Pole driving circuit is arranged on control panel 2, receive the grid after 2 logic level signal of control panel to Q13~Q16 provide it is different
Voltage controls turn-on and turn-off between the source electrode and drain electrode of Q13~Q16 respectively.
It is connected in parallel to backward dioded respectively between Q13~Q16 source electrode and drain electrode, for source in buck-boost converter circuit
There are when inductive load between pole and drain electrode, metal-oxide-semiconductor cut-off inductive current cannot be mutated, using diode continuousing flow, to prevent
High-voltage breakdown metal-oxide-semiconductor protects metal-oxide-semiconductor.
Capacitor C6 is as ripple circuit 3 is inhibited, for reducing input 48V voltage ripple.Full-bridge circuit 3 becomes for DC48V
Shift to DC30~56V voltage transformation.Capacitor C7 is for reducing the inhibition ripple circuit 4 for exporting 30~56V voltage ripple.Inhibit line
5 inductance L4 of wave circuit is for reducing 3 output current ripple of full-bridge circuit.Fuse F is for preventing 30~56V output short-circuit.
Buck-boost converter control panel 2 is equipped with battery management module BMS, and BMS measures 13 series connection in battery group respectively
Voltage V3~V15 of the battery pack and output electric current A of battery group controls the charging and discharging of battery group, guarantees each string
The battery pack operating voltage of connection is in the normal range.BMS uses LTC4020 or BQ24130 chip.
BMS detects voltage V3~V15 of 13 series-connected cell groups in battery group, when electricity any one in voltage V3~V15
When the voltage measuring value of pond group is more than voltage setting value, control panel 2 issues the cut-off signals of Q13~Q16, so that Q13~Q16 is closed
It is disconnected, realize overvoltage protection.In the present embodiment, voltage setting value 4.2V, voltage normal range (NR) is 3.2~4.2V.
Output the electric current A, A that BMS detects battery group are more than current setting value, and control panel 2 issues the shutdown of Q13~Q16
Signal realizes overcurrent protection so that Q13~Q16 is turned off.Current setting value is 6A, 1.2 times of load current values.
BMS measures the temperature T inside battery group, when temperature value is more than setting value, the sending of control panel 2 Q13~
The cut-off signals of Q16 realize overheat protector so that Q13~Q16 is turned off.Desired temperature is environment temperature+20K.
The electricity of battery group and voltage are proportional, and BMS detects accumulator battery voltage V3~V15, will be total in real time electric
V3+V4+......+V15 is pressed to be sent to intelligent control module 5 through RS-485 interface, to indicate the real-time of current battery group
Electricity.
When the electricity of battery group is lower than DC42V, intelligent control module 5 instructs BMS to carry out the battery pack of battery group
Charging.
When utility grid powers off, intelligent control module 5 instructs the electric discharge of BMS battery group, support tip small-power electricity consumption electricity
Device operation；In the case where end power load increases be more than 1 rated power of safe power supply module suddenly, intelligent control module 5
It discharges through BMS starting storage battery group, meets end power load demand.
In the present embodiment, the rated capacity of battery group is 0.5kWh, allows 30~56V of voltage range, maximum allowable to fill
Electric current 5A, maximum allowable discharge current 8.3A.
Intelligent control module 5 provides the DC power supply of 5V, 2A by buck converter.The RS-485 of intelligent control module 5 connects
RS-485 communication interface of the mouth through RS-485 connecting line, safe power supply module 1 is interacted with safe power supply module 1, is obtained safety and is supplied
The input voltage and electric current, output voltage and electric current, temperature of electric module 1, for monitoring 1 working condition of safe power supply module.
In the present embodiment, for battery group safe operating voltage range in 42~52V, the DC48V of safe power supply module 1 is defeated
Power bracket is 0~2500W out.The real-time output power of DC48V is transmitted to intelligence by RS-485 interface by safe power supply module 1
Module 5 can be regulated and controled, battery group real-time voltage is transmitted to intelligent control module 5 by RS-485 interface by energy-storage module 2, intelligence
Regulate and control module 5 according to the real-time output power of DC48V and battery group real-time voltage of safe power supply module 1, controls energy-storage module 2
It is charged and discharged:
1. accumulator battery voltage is lower than DC52V, the DC48V output realtime power of safe power supply module 1 is lower than 500W, intelligence
Regulation module 5 issues BMS and starts to charge instruction.
2. accumulator battery voltage is lower than 52V, the 48V output realtime power of safe power supply module 1 is higher than 800W, intelligent control
Module 5 issues BMS and stops charging instruction.
3. accumulator battery voltage is higher than DC52V, intelligent control module 5 issues BMS and stops charging instruction.
4. accumulator battery voltage is higher than DC42V, the DC48V output realtime power of safe power supply module 1 is higher than 1500W, intelligence
Can regulate and control module 5 issue BMS start electric discharge instruction.
5. accumulator battery voltage is higher than DC42V, the DC48V output realtime power of safe power supply module 1 is lower than 1000W, intelligence
Module 5 can be regulated and controled and issue BMS stopping electric discharge instruction.
6. accumulator battery voltage is lower than DC42V, intelligent control module 5 issues BMS and stops electric discharge instruction.
Interface module 3 is equipped with RS-485 communication bus, and the RS-485 interface including safe power supply module 1 is through RS-485 line
With the communication connection of intelligent control module 5RS-485 interface, the RS-485 interface and intelligent control module 5RS- of energy-storage module 2
The communication connection of 485 interfaces, for safe power supply module 1, energy-storage module 2 and accessible photovoltaic power generation apparatus and intelligent control
Module 5 establishes communication connection.
Interface module 3 is equipped with power output interface (port 1~10), is used for architecture indoor terminal power supply for electrical equipment.
It is connected with MOS switch before the port 1~10 of interface module 3, for actively turning off port 1~10.MOS switch is flown using German English
Insult the metal-oxide-semiconductor field effect transistor IRFS4310ZTRLPBF of scientific & technical corporation.
Interface module 3 is equipped with DC48V interconnecting interface, for accessing photovoltaic power generation apparatus.
The DC48V interconnecting interface of interface module 3 uses copper bar form, is that power supply is positive and negative.The output of DC48V low-voltage direct connects
Mouth 10 road terminals of configuration, every road maximum current 10A, 10 tunnels add up to maximum current 52A, using aviation quick plug.
Intelligent control module 5 is equipped with 6 road RJ45 interfaces (network interface 1~6), for different direct-current micro-grids with storage control all-in-one machine
Intelligent control module between communication, i.e., direct-current micro-grid with storage control all-in-one machine between communication, meet straight in multiple spaces
Microgrid is flowed with storage control all-in-one machine communication requirement.Intelligent control module 5 is provided with wireless communication module, with sensor and receiver it
Between establish wireless communication connection, wireless WiFi communication is used in the present embodiment.Sensor is Temperature Humidity Sensor, illumination sensing
Device, intelligent control module 5 is according to the Temperature Humidity Sensor, optical sensor starting blower or air conditioner received, switch lighting
Lamp starts desktop electrical work according to receiver information.
Intelligent control module 5 acquires safe power supply module 1, energy-storage module 2, interface module 3 and accessible photovoltaic power generation
Input voltage and electric current, the output voltage and current data of device shine according to the side the DC48V electricity consumption of safe power supply module 1
The working condition of bright, computer, air conditioning electricity equipment determines and calls 2 charge or discharge of energy-storage module, so that safe power supply module 1
The power supply of the side DC375V reach balance, realize the energy-optimised utilization between the illumination of local zone, computer, air-conditioning equipment.
As shown in Figure 1, direct-current micro-grid of the present invention with storage control all-in-one machine, provide safe dc power supply, energy storage management and running and
To dispersion electric appliance intelligent control, action:
1. safe power supply
Direct current 375V electric current is direct current 48V by being depressured after safe power supply module 1, is indoor small power DC electric appliance,
Safety power supply is provided including illumination, laptop, display, mobile phone low power electric appliance equipment.Under direct current 48V voltage, people
Body, which directly touches positive and negative anodes, will not occur electric shock.And direct-current micro-grid (connects with storage control all-in-one machine configured with protection circuit
The MOS switch of mouth mold block 3), realize that failure actively turns off, full-scope safeguards Electrical Safety.
2. energy storage management and running
It is provided with battery group and battery management module, under utility grid power blackout situation, battery management module starting stores
Battery power discharge, the operation of support tip small-power electrical appliance.In end, power load increases suddenly, is more than safe power supply module
In the case where 1 rated power, intelligent control module 5 is discharged through battery management module starting storage battery group, and it is negative to meet end electricity consumption
Lotus demand.Under normal operating conditions, battery management module monitors that battery pack charge is insufficient, and battery management module starts to storage
Battery pack charging realizes that the energy is controllable until battery group is full of charge.
3. intelligent control
Safe power supply module 1 is provided with V1, A1, V2, A2, can actively detect perception input terminal DC voltage change, and will
Voltage change signal passes to control panel.Control panel combination DC bus-bar voltage situation of change, 1 self-operating of safe power supply module
The parameter of power electrical equipment operating status connected to it is sent to intelligent control module 5, and intelligent control module 5, which calculates, to be supplied
Electric notch forms control instruction, is sent to the battery management module of energy-storage module, carries out the operation power tune of end power load
Whole and battery group control of discharge is realized and stabilizes fluctuation, balanced load and the purpose for cutting down spike.
In the present embodiment, nominal input voltage is 375~378V, and rated output voltage is 48~50V, maximum input
Electric current is 6.7A, maximum output current 52A, and direct current 375V/48V efficient conversion, maximum transform power may be implemented
2.5kW is that terminal electrical appliance provides stable low-voltage direct safety power supply within 80~100 square metres of building.Battery group
Voltage be 30~56V, the maximum charging current of battery group is 5A, and the maximum discharge current of battery group is 8.3A, is realized
The access and management of 0.5~1kWh distributed energy storage battery.It include that 48V interconnecting interface and 10 tunnels connect by using interface module 3
The maximum current of line end mouth, every road Wiring port is 10A, and every road Wiring port is all made of aviation plug, and intelligent control module 5 is set
6 road RJ45 interfaces are equipped with, are realized to air conditioner indoor unit, illumination, the automatic control of office electric appliance and other low pressure low power electric appliances
Energy scheduling feature between function and adjacent " direct-current micro-grid is with storage control all-in-one machine ", the monitoring including indoor environment parameter connect
Enter equipment state and energy monitoring, and long-range connection energy management unit carries out building automation function.
The present invention suitable for there is the power supply system of Demand Side Response functional requirement, municipal administration power supply Reconstruction Project
Power supply-distribution system in the power supply system of off-capacity, modular architectural.
The present invention integrates safe direct current supply, energy storage management and running and electric appliance dispersed intelligence and controls three kinds of functions,
Direct current 375V/48V power supply can be achieved, support that establishing the direct current 48V safe voltage for meeting people residence and work primary demand supplies
Electric system, focuses on solving requirement of the civil buildings scene to Product Safety, stability and reliability, and its circuit topology and
Control will support the advanced intelligent control function such as ad hoc network.
Claims (10)
1. a kind of direct-current micro-grid is with storage control all-in-one machine, it is characterised in that: the direct-current micro-grid is equipped with safety with storage control all-in-one machine and supplies
Electric module (1), safe power supply module (1) are connected with energy-storage module (2), interface module (3) and intelligent control module (5)；
Direct current 375V is converted to direct current 48V voltage by the safe power supply module (1), respectively to energy-storage module (2), interface module
(3), intelligent control module (5) is powered, and safe power supply module (1) sends the real-time output work of direct current 48V to intelligent control module (5)
Rate；
The energy-storage module (2) receives the direct current 48V electric energy of safe power supply module (1), fills to the battery group of energy-storage module (2)
Electricity, battery group receive intelligent control module (5) instruction, power to lighting apparatus；The energy-storage module (2) is to intelligent control mould
Block (5) sends battery group real-time voltage；
The interface module (3) receives the direct current 48V electric energy of safe power supply module (1), supplies to architecture indoor terminal electrical equipment
Electricity；
The intelligent control module (5) receive safe power supply module (1) the real-time output power of direct current 48V and battery group it is real-time
Voltage controls battery charging and electric discharge.
2. direct-current micro-grid according to claim 1 is with storage control all-in-one machine, it is characterised in that: the safe power supply module (1)
Direct current 48V voltage, direct current 48V voltage is converted into direct current 5V voltage through buck converter, to intelligent control module (5) supply
Electricity.
3. direct-current micro-grid according to claim 2 is with storage control all-in-one machine, it is characterised in that: the safe power supply module (1)
The switching circuit 1 of input overvoltage protection and short-circuit protection equipped with sequential connection reduces the generation of external dc 375V input circuit
The Electro Magnetic Compatibility circuit 1 of common mode current is limited in anti-rush of current circuit, the drop that dash current is generated after input voltage accesses
Inhibition ripple circuit 1, the direct current 375V of low direct current 375V voltage ripple are converted into the full-bridge circuit 1 of direct current 180V, for full-bridge
Circuit 1 exports the filter circuit of current filtering, the transformer of direct current 180V to direct current 30V, direct current 30V and is converted into direct current 48V's
Full-bridge circuit 2, reduces direct current 48V voltage at the Electro Magnetic Compatibility circuit 2 for reducing the common mode current that direct current 48V output circuit generates
The switching circuit 2 of inhibition the ripple circuit 2 and output over-voltage protection and short-circuit protection of ripple.
4. direct-current micro-grid according to claim 3 is with storage control all-in-one machine, it is characterised in that: the safe power supply module (1)
Equipped with control panel, control switch circuit 1, full-bridge circuit 1, full-bridge circuit 2 and switching circuit 2 work.
5. direct-current micro-grid according to claim 4 is with storage control all-in-one machine, it is characterised in that: 1 input terminal of switching circuit
Positive electrode and negative electrode between be equipped with input voltage measurement element, input voltage sampled value input control plate；The input end switch
Anode after circuit is equipped with input electric cur- rent measure element, input current sampled value input control plate；2 output end of switching circuit
Positive electrode and negative electrode between be equipped with output voltage detecting element, output voltage sampled value input control plate, the output end is just
Pole is equipped with output electric current measure element, exports current sampling data input control plate；The full-bridge circuit 1, filter circuit, transformer
It is equipped with radiator with full-bridge circuit 2, temperature detecting element is equipped in spreader surface, the surface temperature value of radiator is inputted into control
Making sheet.
6. direct-current micro-grid according to claim 5 is with storage control all-in-one machine, it is characterised in that: the energy-storage module (2) is equipped with
Battery group and buck-boost converter, the battery group compose in parallel battery pack, then battery pack using LiFePO4 monocell
Battery group in series；The buck-boost converter is equipped with the inhibition for the reduction input direct-current 48V voltage ripple being linked in sequence
Ripple circuit 3, the voltage transformation full-bridge circuit 3 that 30~56V of direct current is converted into for direct current 48V reduce output 30~56V voltage
The inhibition ripple circuit 4 of ripple, the inhibition ripple circuit 5 for reducing by 3 output current ripple of full-bridge circuit and prevent 30~56V from exporting
The fuse of short circuit.
7. direct-current micro-grid according to claim 6 is with storage control all-in-one machine, it is characterised in that: the buck-boost converter is equipped with
Control panel (2), control panel (2) control full-bridge circuit 3 and work.
8. direct-current micro-grid according to claim 7 is with storage control all-in-one machine, it is characterised in that: the control panel (2) is equipped with electricity
Pond management module, battery management module measure the output electricity of the voltage of series-connected cell group and battery group in battery group respectively
Stream sends battery group real-time voltage to intelligent control module (5), receives intelligent control module (5) instruction, controls battery group
Charging, to lighting apparatus power.
9. direct-current micro-grid according to claim 8 is with storage control all-in-one machine, it is characterised in that: the intelligent control module (5)
Equipped with RJ45 interface, for the communication between intelligent control module of the different direct-current micro-grids with storage control all-in-one machine.
10. direct-current micro-grid according to claim 8 is with storage control all-in-one machine, it is characterised in that: the intelligent control module (5)
It is provided with wireless communication module, wireless communication connection is established between Temperature Humidity Sensor and optical sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910627144.2A CN110365091A (en) | 2019-07-11 | 2019-07-11 | Direct-current micro-grid is with storage control all-in-one machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910627144.2A CN110365091A (en) | 2019-07-11 | 2019-07-11 | Direct-current micro-grid is with storage control all-in-one machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110365091A true CN110365091A (en) | 2019-10-22 |
Family
ID=68218914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910627144.2A Pending CN110365091A (en) | 2019-07-11 | 2019-07-11 | Direct-current micro-grid is with storage control all-in-one machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110365091A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113110235A (en) * | 2021-05-12 | 2021-07-13 | 上海一德电气科技有限公司 | Low-voltage intelligent electric internet-of-things protection terminal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011055194A1 (en) * | 2009-11-06 | 2011-05-12 | パナソニック電工株式会社 | Electric power interchange system |
| CN107112903A (en) * | 2015-02-02 | 2017-08-29 | 三菱电机株式会社 | DC/DC converters |
| CN108539778A (en) * | 2017-03-01 | 2018-09-14 | 天津大学（青岛）海洋工程研究院有限公司 | A kind of design method of the general new energy microgrid router of family |
| CN109256764A (en) * | 2018-11-23 | 2019-01-22 | 西南交通大学 | A kind of vehicle-mounted grid-side converter suitable for middle pressure direct-current traction power supply |
| CN109524954A (en) * | 2018-12-29 | 2019-03-26 | 深圳市建筑科学研究院股份有限公司 | A kind of DC power supply of Integrated intelligent control function |
-
2019
- 2019-07-11 CN CN201910627144.2A patent/CN110365091A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011055194A1 (en) * | 2009-11-06 | 2011-05-12 | パナソニック電工株式会社 | Electric power interchange system |
| CN107112903A (en) * | 2015-02-02 | 2017-08-29 | 三菱电机株式会社 | DC/DC converters |
| CN108539778A (en) * | 2017-03-01 | 2018-09-14 | 天津大学（青岛）海洋工程研究院有限公司 | A kind of design method of the general new energy microgrid router of family |
| CN109256764A (en) * | 2018-11-23 | 2019-01-22 | 西南交通大学 | A kind of vehicle-mounted grid-side converter suitable for middle pressure direct-current traction power supply |
| CN109524954A (en) * | 2018-12-29 | 2019-03-26 | 深圳市建筑科学研究院股份有限公司 | A kind of DC power supply of Integrated intelligent control function |
Non-Patent Citations (3)
| Title |
|---|
| 刘杰: "《电动汽车电力电子技术应用》", 31 March 2018, 北京交通大学出版社 * |
| 沙占友: "《开关电源优化设计（第二版）》", 31 January 2013, 中国电力出版社 * |
| 王立夫: "《电力电子技术（第二版）》", 31 August 2017, 北京邮电大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113110235A (en) * | 2021-05-12 | 2021-07-13 | 上海一德电气科技有限公司 | Low-voltage intelligent electric internet-of-things protection terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203312887U (en) | DC emergency power supply | |
| CN102355042B (en) | Super-capacitor-based direct current power device of power station and power supply method thereof | |
| CN106415972A (en) | Electrical power-supplying device and method for supplying electrical power | |
| CN203339769U (en) | Online energy storage power supply for photovoltaic and mains supply complementary input | |
| CN102916477B (en) | Multifunctional intelligent accumulator discharge device compatible with multiple voltage grades | |
| TW201914146A (en) | Integrated power supply system | |
| CN103151790B (en) | A kind of electric power system of intelligent peak load shifting | |
| CN205029416U (en) | Little capacity distribution formula energy memory and energy storage cabinet | |
| CN208401605U (en) | DC charging cabinet | |
| CN206850446U (en) | A kind of intelligent load-balancing regulator | |
| CN204668976U (en) | Portable power source and charging system | |
| CN205070589U (en) | Multi -functional ACDC converting means | |
| CN110365091A (en) | Direct-current micro-grid is with storage control all-in-one machine | |
| CN204068380U (en) | A kind of mobile AC emergency power supply unit | |
| CN109524954A (en) | A kind of DC power supply of Integrated intelligent control function | |
| CN203339768U (en) | Backup energy storage power supply for photovoltaic and mains supply complementary input | |
| CN209434877U (en) | A kind of DC power supply of Integrated intelligent control function | |
| CN108767953A (en) | A kind of DC charging cabinet | |
| CN202602351U (en) | Time sharing power supply energy storage system for residence | |
| CN205960338U (en) | Power extension line that can regularly cut -off | |
| CN207782428U (en) | A kind of wind-light-electricity mixing energy-saving electric power system | |
| CN203871910U (en) | Charger with automatic power off function | |
| CN202634034U (en) | Busbar-shared energy-saving recovering type storage battery charging and discharging power circuit structure | |
| CN113659673A (en) | Quick charging and grid-connected connecting device based on energy storage power supply and working method thereof | |
| CN106253447A (en) | Based on wind, light, storage, the Intelligent uninterruptible power-supply system of city's complementation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191022 |