CN108808823A - A kind of photovoltaic module booting-self controller device and a kind of power supply system - Google Patents
A kind of photovoltaic module booting-self controller device and a kind of power supply system Download PDFInfo
- Publication number
- CN108808823A CN108808823A CN201810652027.7A CN201810652027A CN108808823A CN 108808823 A CN108808823 A CN 108808823A CN 201810652027 A CN201810652027 A CN 201810652027A CN 108808823 A CN108808823 A CN 108808823A
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- China
- Prior art keywords
- photovoltaic module
- module
- electric energy
- control
- modules
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Links
- 238000001514 detection method Methods 0.000 claims abstract description 46
- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- 230000005611 electricity Effects 0.000 claims abstract description 7
- 238000005070 sampling Methods 0.000 claims description 13
- 238000005286 illumination Methods 0.000 abstract description 6
- 238000010248 power generation Methods 0.000 abstract description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 12
- 229910052744 lithium Inorganic materials 0.000 description 12
- 238000004891 communication Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004065 semiconductor 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
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
The present invention relates to a kind of photovoltaic module booting-self controller device and a kind of power supply systems, booting-self controller device includes the voltage detection module for detecting photovoltaic module output voltage, control module and the electric energy transmission control switch for being arranged on battery electric energy transmission line.When accumulator electric-quantity is relatively low, electric energy transmission control switch is controlled to disconnect, and, when sunlight photovoltaic module, photovoltaic module generates voltage, and as illumination enhances, the output voltage of photovoltaic module slowly increases, when the output voltage of photovoltaic module reaches setting value, indicate that voltage is met the requirements, at this point, control electric energy transmission control switch is closed, put into accumulator, photovoltaic module self-starting is controlled, system restores normal power supply, since illumination is normal, photovoltaic module normal power generation, electrical equipment normal work.Therefore, which realizes the self-starting of photovoltaic module, improves the power supply efficiency of system, ensure that the electricity consumption of electrical equipment, and then promote the working efficiency of electrical equipment.
Description
Technical field
The present invention relates to a kind of photovoltaic module booting-self controller device and a kind of power supply systems.
Background technology
With the rapid development of China's telecommunications industry, the scale of communication network is constantly expanding, many remote in China
Area ensures base station reliable power supply using the scheme of new energy+plus storage battery power supply.But some photovoltaic modulies currently on the market
After accumulator protecting is without output, self-starting function (such as Ai Mosheng photovoltaic modules, input cannot achieve under normal circumstances in sunlight
Voltage is more than 65V and output voltage is more than 30V and can just open machine), reduce power supply efficiency and the working efficiency of electrical equipment.
Invention content
The object of the present invention is to provide a kind of photovoltaic module booting-self controller devices, are set to solve existing photovoltaic generation
It is standby when being powered to electrical equipment, it cannot achieve self-starting and then reduce asking for power supply efficiency and electrical equipment working efficiency
Topic.Present invention simultaneously provides a kind of power supply systems.
To achieve the above object, the present invention includes following technical scheme.
A kind of photovoltaic module booting-self controller device includes the voltage detecting mould for detecting photovoltaic module output voltage
Block, control module and the electric energy transmission control switch for being arranged on battery electric energy transmission line, the control module
Sampling connects the voltage detection module, and control connects the electric energy transmission control switch, when the output voltage of photovoltaic module arrives
When up to setting value, controls the electric energy transmission control switch and be closed, realize the self-starting of photovoltaic module.
When accumulator normal power supply, photovoltaic module booting-self controller device does not work.When accumulator electric-quantity is relatively low, control
Electric energy transmission control switch on battery electric energy transmission line processed disconnects, also, when sunlight photovoltaic module, photovoltaic group
Part generates voltage, and as illumination enhances, the output voltage of photovoltaic module slowly increases, and is set when the output voltage of photovoltaic module reaches
It when definite value, indicates that voltage is met the requirements, at this point, control electric energy transmission control switch is closed, puts into accumulator, control photovoltaic module
Self-starting, system restores normal power supply, since illumination is normal, photovoltaic module normal power generation, and electrical equipment normal work.Therefore,
The device realizes the self-starting of photovoltaic module, improves the power supply efficiency of system, ensure that the electricity consumption of electrical equipment, and then promoted
The working efficiency of electrical equipment.
Further, the voltage detection module includes DC/DC modules and voltage detection unit, the DC/DC modules
One end is used to connect the electric energy output end of photovoltaic module, and the other end of the DC/DC modules is used to connect the electric energy biography of accumulator
Defeated circuit, the voltage detection unit is used to that the other end in the DC/DC modules to be arranged, to detect the another of DC/DC modules
The voltage at end, the control module sampling connect the voltage detection unit.
When the output voltage of photovoltaic module reaches setting value, the startup voltage of DC/DC modules, DC/DC are also just reached
Module is started to work, and is exported corresponding voltage to busbar, after voltage detection unit detects that busbar terminal voltage changes, is controlled
Module controls electric energy transmission control switch and is closed, and puts into accumulator, controls photovoltaic module self-starting, system restores normal power supply.
Further, the control device further includes the electric power detection module for detecting accumulator electric-quantity, the control
Module samples connect the electric power detection module.
Further, the electric energy output end of the photovoltaic module is gone here and there in the connection line of one end of the DC/DC modules
Equipped with power switch, the control module control connects the power switch.
A kind of power supply system, including photovoltaic module and accumulator, the electric energy output end and accumulator phase of the photovoltaic module
Connection, the power supply system further includes photovoltaic module booting-self controller device, and the control device includes for detecting photovoltaic group
The voltage detection module of part output voltage, control module and the electric energy transmission for being arranged on battery electric energy transmission line
Control switch, the control module sampling connect the voltage detection module, and control connects the electric energy transmission control switch, when
When the output voltage of photovoltaic module reaches setting value, control the electric energy transmission control switch and be closed, realize photovoltaic module from
Start.
Further, the voltage detection module includes DC/DC modules and voltage detection unit, the DC/DC modules
One end is used to connect the electric energy output end of photovoltaic module, and the other end of the DC/DC modules is used to connect the electric energy biography of accumulator
Defeated circuit, the voltage detection unit is used to that the other end in the DC/DC modules to be arranged, to detect the another of DC/DC modules
The voltage at end, the control module sampling connect the voltage detection unit.
Further, the control device further includes the electric power detection module for detecting accumulator electric-quantity, the control
Module samples connect the electric power detection module.
Further, the electric energy output end of the photovoltaic module is gone here and there in the connection line of one end of the DC/DC modules
Equipped with power switch, the control module control connects the power switch.
Description of the drawings
Fig. 1 is power supply system circuit structure diagram.
Specific implementation mode
Power supply system embodiment
The present embodiment provides a kind of power supply systems, and the corresponding electrical equipment of the power supply system is by taking communication equipment as an example.The confession
Electric system includes photovoltaic module and accumulator, in the present embodiment, the lithium battery group in accumulator corresponding diagram 1.As shown in Figure 1, light
The electric energy output end of volt component is connected with lithium battery group, moreover, being also provided on the electric energy outlet line of photovoltaic module
Switch board realizes the relevant treatment of electric energy by the power module in switch board.
The power supply system further includes photovoltaic module booting-self controller device, which includes voltage detection module, control
Molding block and electric energy transmission control switch, voltage detection module are used to detect the output voltage of photovoltaic module, and control module is realized
Booting-self controller, electric energy transmission control switch are arranged on the electric energy transmission line of accumulator, control module sampling connection voltage
Detection module, control connection electric energy transmission control switch.
In the present embodiment, control module is by taking the corresponding BMS of lithium battery group as an example, it is, of course, also possible to be that special realize is opened certainly
Dynamic control device.The contact KM1, BMS in electric energy transmission control switch corresponding diagram 1 on the electric energy transmission line of lithium battery group
Control the corresponding control coils of connecting terminal KM1.
In the present embodiment, voltage detection module includes two parts, as shown in Figure 1, being DC/DC modules (DC/DC modules respectively
Selected according to actual conditions, for example select suitable input/output voltage, capacity etc.) and voltage detection unit, DC/DC
The electric energy output end of one end connection photovoltaic module of module, the other end of DC/DC modules connect lithium battery group, voltage detection unit
The other end in DC/DC modules is set, that is, is arranged at the busbar that lithium battery group is connected, BMS samplings connect the voltage detecting
Unit, the output voltage of the DC/DC modules for collecting, i.e. busbar terminal voltage.
In order to detect the electricity of lithium battery group, booting-self controller device further includes electric power detection module, and BMS sampling connections should
Electric power detection module.
Further, in this embodiment as shown in Figure 1, the connecting line of the electric energy output end of photovoltaic module and DC/DC modules
Road string is equipped with power switch, the contact KA1 in power switch corresponding diagram 1, and photovoltaic module passes through contact KA1 connection DC/DC moulds
Block, BMS control the corresponding control coils of connecting terminal KA1.Contact KA1 and control coil KA1 constitute relay KA1, contact KM1
Relay KM1 is constituted with control coil KM1.BMS controls contact KA1 and KM1 according to the voltage detecting situation of voltage detection unit
Break-make.
When lithium battery group normal power supply, BMS controls lithium battery group normally exports, and exports high level control control coil
KA1, contact KA1 are gone off by normally closed, and booting-self controller device does not work.
When lithium battery group is discharged to protection value, i.e., when lithium battery group electricity is less than certain value, it is (straight that BMS controls contact KM1
Flow contactor/metal-oxide-semiconductor) it disconnects, lithium battery group is without output, communication equipment power-off.Moreover, BMS enters deep sleep, BMS
Charge inside detection activation function starts.BMS exports low level control control coil KA1, and control coil KA1 power-off does not work,
Contact KA1 becomes normally closed from disconnecting, and booting-self controller device connects operation.When sunlight photovoltaic module, photovoltaic module production
Raw voltage, as illumination enhances, the output voltage of photovoltaic module slowly increases, and when voltage reaches certain value, that is, reaches DC/
When startup voltage (the DC/DC modules input voltage range is consistent with photovoltaic module input voltage range, such as 66V) of DC modules,
DC/DC modules are started to work, and export supply voltage (such as 48V voltages) needed for communication equipment to busbar, voltage detection unit inspection
After measuring the variation of busbar terminal voltage, relevant signal is exported activated automatically to BMS, BMS (delay filter can be added,
Prevent false triggering), BMS controls contact KM1 and is closed, and system restores normal power supply, and since illumination is normal, photovoltaic module is normally sent out
Electricity, then, communication equipment can work normally.Certainly, when system restores normal power supply, BMS also controls contact KA1 disconnections,
Booting-self controller device terminates to run.
Specific embodiment is presented above, but the present invention is not limited to described embodiment.The base of the present invention
This thinking is the hardware configuration of above-mentioned power supply system, and does not lie in internal control strategy.The principle of the present invention is not being departed from
It is still fallen in protection scope of the present invention with the change, modification, replacement and modification carried out to embodiment in the case of spirit.
Photovoltaic module booting-self controller device embodiment
Include for detecting photovoltaic module output voltage the present embodiment provides a kind of photovoltaic module booting-self controller device
Voltage detection module, control module and the electric energy transmission control switch for being arranged on battery electric energy transmission line, control
Module samples processed connect voltage detection module, control connection electric energy transmission control switch, when the output voltage of photovoltaic module reaches
When setting value, control electric energy transmission control switch is closed, and realizes the self-starting of photovoltaic module.Since the booting-self controller device exists
It has given and has described in detail in above system embodiment, the present embodiment just no longer illustrates.
Claims (8)
1. a kind of photovoltaic module booting-self controller device, which is characterized in that include the electricity for detecting photovoltaic module output voltage
Detection module, control module and the electric energy transmission control switch for being arranged on battery electric energy transmission line are pressed, it is described
Control module sampling connects the voltage detection module, and control connects the electric energy transmission control switch, defeated when photovoltaic module
When going out voltage arrival setting value, controls the electric energy transmission control switch and be closed, realize the self-starting of photovoltaic module.
2. photovoltaic module booting-self controller device according to claim 1, which is characterized in that the voltage detection module packet
DC/DC modules and voltage detection unit are included, one end of the DC/DC modules is used to connect the electric energy output end of photovoltaic module, institute
The other end for stating DC/DC modules is used to connect the electric energy transmission line of accumulator, and the voltage detection unit is for being arranged in institute
The other end for stating DC/DC modules, to detect the voltage of the other end of DC/DC modules, the control module sampling connects the electricity
Press detection unit.
3. photovoltaic module booting-self controller device according to claim 1 or 2, which is characterized in that the control device is also
Include the electric power detection module for detecting accumulator electric-quantity, the control module sampling connects the electric power detection module.
4. photovoltaic module booting-self controller device according to claim 2, which is characterized in that the electric energy of the photovoltaic module
Output end is equipped with power switch, the control module control connection institute with string in the connection line of one end of the DC/DC modules
State power switch.
5. a kind of power supply system, including photovoltaic module and accumulator, the electric energy output end of the photovoltaic module are connected with accumulator
It connects, which is characterized in that the power supply system further includes photovoltaic module booting-self controller device, and the control device includes for examining
Survey the voltage detection module of photovoltaic module output voltage, control module and for being arranged on battery electric energy transmission line
Electric energy transmission control switch, the control module sampling connect the voltage detection module, and control connects the electric energy transmission control
System switch controls the electric energy transmission control switch and is closed, realize photovoltaic when the output voltage of photovoltaic module reaches setting value
The self-starting of component.
6. power supply system according to claim 5, which is characterized in that the voltage detection module include DC/DC modules and
Voltage detection unit, one end of the DC/DC modules are used to connect the electric energy output end of photovoltaic module, the DC/DC modules
The other end is used to connect the electric energy transmission line of accumulator, and the voltage detection unit is for being arranged in the DC/DC modules
The other end, to detect the voltage of the other end of DC/DC modules, the control module sampling connects the voltage detection unit.
7. power supply system according to claim 5 or 6, which is characterized in that the control device further includes being stored for detecting
The electric power detection module of battery capacity, the control module sampling connect the electric power detection module.
8. power supply system according to claim 6, which is characterized in that the electric energy output end of the photovoltaic module with it is described
String is equipped with power switch in the connection line of one end of DC/DC modules, and the control module control connects the power switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810652027.7A CN108808823B (en) | 2018-06-22 | 2018-06-22 | Photovoltaic module self-starting control device and power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810652027.7A CN108808823B (en) | 2018-06-22 | 2018-06-22 | Photovoltaic module self-starting control device and power supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108808823A true CN108808823A (en) | 2018-11-13 |
| CN108808823B CN108808823B (en) | 2024-01-19 |
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| CN201810652027.7A Active CN108808823B (en) | 2018-06-22 | 2018-06-22 | Photovoltaic module self-starting control device and power supply system |
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2018
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| CN108808823B (en) | 2024-01-19 |
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