CN110277826A - A kind of solar power supply circuit and method of supplying power to of small load equipment - Google Patents
A kind of solar power supply circuit and method of supplying power to of small load equipment Download PDFInfo
- Publication number
- CN110277826A CN110277826A CN201910555465.6A CN201910555465A CN110277826A CN 110277826 A CN110277826 A CN 110277826A CN 201910555465 A CN201910555465 A CN 201910555465A CN 110277826 A CN110277826 A CN 110277826A
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- energy
- super capacitor
- module
- lithium battery
- small load
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000004146 energy storage Methods 0.000 claims abstract description 111
- 239000003990 capacitor Substances 0.000 claims abstract description 109
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 85
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 85
- 230000007812 deficiency Effects 0.000 claims abstract description 4
- 238000012544 monitoring process Methods 0.000 claims description 27
- 230000005611 electricity Effects 0.000 claims description 16
- 241000043482 Pomax Species 0.000 claims description 6
- 230000015556 catabolic process Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 238000012806 monitoring device Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005070 sampling Methods 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
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to power supply technical fields, and in particular to a kind of solar power supply circuit and method of supplying power to of small load equipment, including solar panel, super capacitor energy-storage module, lithium battery energy storage battery module, power management module；Solar panel is for converting solar energy into electrical energy；Super capacitor energy-storage module is for storing electric energy and charging to small load equipment offer power supply or to lithium battery energy storage battery module；Lithium battery energy storage battery module is used to charge when the electric energy in super capacitor energy-storage module is greater than the power consumption of small load equipment, discharges when super capacitor energy-storage module supplies the electric energy deficiency of small load equipment small load equipment；Power management module is used to control the switching of super capacitor energy-storage module and lithium battery energy storage battery module.The present invention can rationally control the charge and discharge of super capacitor and lithium battery, reduce the charge and discharge process of lithium battery to the maximum extent, can effectively improve the service life of lithium battery, it is ensured that solar electric power supply system longtime running stability.
Description
Technical field
The present invention relates to power supply technical fields, and in particular to a kind of solar power supply circuit of small load equipment and confession
Method for electrically.
Background technique
With the development of computer technology, it is many open air the small load monitoring equipment of low-power consumption for military affairs, scientific research, traffic,
It is big to manage and maintain difficulty since distributed areas are wide for the multiple fields such as environmental monitoring, health care.The reliability of power supply and make
The normal operation of outdoor small load monitoring equipment is influenced with the service life very big.And monitoring device is combined using solar energy with lithium battery
Power supply plan, but the service life of lithium battery is limited, it is difficult to meet the long-term running needs of equipment；Small load existing simultaneously is set
In standby power supply plan, lacks effective monitoring to super capacitor and lithium battery energy storage battery state, can not understand in monitoring device in time
The working condition of power supply.
Summary of the invention
To solve the above-mentioned problems, the present invention provides the solar power supply circuits and supplier of electricity of a kind of small load equipment
Method, specific technical solution are as follows:
A kind of solar power supply circuit of small load equipment, including the storage of solar panel, super capacitor energy-storage module, lithium battery
It can module, power management module；The solar panel is connect with super capacitor energy-storage module, the super capacitor energy-storage mould
Block, lithium battery energy storage battery module are connect with power management module respectively；The super capacitor energy-storage module and lithium battery energy storage battery module
Connection；The super capacitor energy-storage module includes super capacitor；The lithium battery energy storage battery module includes lithium battery；
The solar panel inputs super capacitor energy-storage mould for converting solar energy into electrical energy, and by the electric energy after conversion
Block；The super capacitor energy-storage module for store electric energy and by power management module to small load equipment provide power supply or to
The charging of lithium battery energy storage battery module；The lithium battery energy storage battery module is greater than small load for the electric energy in super capacitor energy-storage module
It charges when the power consumption of equipment, passes through power management when super capacitor energy-storage module supplies the electric energy deficiency of small load equipment
Module discharges to small load equipment；The power management module is for controlling super capacitor energy-storage module and lithium battery energy storage battery module
Switching, and export stable voltage source.
Preferably, the solar power supply circuit further includes bluetooth monitoring modular；The bluetooth monitoring modular respectively with it is super
Grade capacitive energy storage module, lithium battery energy storage battery module, power management module connection；The bluetooth monitoring modular is for monitoring super electricity
Hold the state of energy-storage module, lithium battery energy storage battery module, and controls the output of power management module.
Preferably, the solar panel is connect by anti-backflow diode with super capacitor energy-storage block coupled in series.
Preferably, the super capacitor energy-storage module further includes overvoltage protection diode；The super capacitor and over-voltage are protected
Protect diodes in parallel connection；For protecting super capacitor overvoltage breakdown, voltage protection value is the overvoltage protection diode
The voltage rating of super capacitor.
Preferably, the maximum power Pomax of the maximum charge power Pcmax of the super capacitor and small load equipment exists
Following relationship:
Pcmax>10*Pomax。
It preferably, further include switching tube；The switching tube is connect with power management module, for controlling the on-off of power supply.
A kind of method of supplying power to of the solar power supply circuit of small load equipment, comprising the following steps:
S1: solar panel is collected after solar energy produces electricl energy and inputs super capacitor energy-storage module；
S2: super capacitor energy-storage module receives the electric energy of solar panel input and increases the voltage Vc on super capacitor；
S3: power management module is used to manage the charge and discharge of super capacitor energy-storage module and lithium battery energy storage battery module, works as solar energy
When input voltage Vcc on solar panel is greater than the voltage Vbat of lithium battery, small load equipment by super capacitor energy-storage module for power supply,
And if super capacitor energy-storage module stores when the voltage Vbat of lithium battery is less than lithium battery fully charged ceiling voltage when Vmax
Electric energy charge to lithium battery energy storage battery module, the voltage Vc on super capacitor is restricted to close to the voltage on lithium battery
Vbat；
S4: when the electricity of the storage on lithium battery has been expired, and fully charged voltage reaches Vmax, lithium battery energy storage battery module is no longer connect
By the electric energy in super capacitor energy-storage module；
S5: when solar panel is collected less than electric energy, super capacitor energy-storage module continues to power to small load equipment, until
Voltage Vc on super capacitor is less than the voltage Vbat on lithium battery, and power management module switches to lithium battery energy storage battery module to small
Load equipment power supply, it is ensured that the stable operation of small load equipment.
Preferably, in the step S1 solar panel collect solar energy produce electricl energy it is defeated after anti-backflow diode
Enter super capacitor energy-storage module.
Preferably, the step S4 further include: the electric energy that solar panel persistently inputs can make the electricity on super capacitor
Vc is pressed to increase, when the voltage on super capacitor reaches the discharge voltage of overvoltage protection diode, extra electric energy passes through over-voltage
Protection diode carries out vent discharge over the ground, prevents super capacitor over-voltage breakdown.
Preferably, further comprising the steps of:
S6: bluetooth monitoring modular is activated by mobile terminal, and mobile terminal is by bluetooth monitoring modular to super capacitor
Voltage, the electricity of lithium battery, small load equipment payload size detected and acquire corresponding data.
The invention has the benefit that power management module is arranged in the present invention, super capacitor and lithium electricity can be rationally controlled
The charge and discharge in pond reduce the charge and discharge process of lithium battery to the maximum extent, can effectively improve the service life of lithium battery, really
Protect solar electric power supply system longtime running stability.
Detailed description of the invention
Fig. 1 is a kind of schematic illustration of the solar power supply circuit of small load equipment in the present invention；
Fig. 2 is the circuit diagram that solar panel is connect with super capacitor energy-storage module；
Fig. 3 is the circuit diagram of power management module；
The circuit diagram of the position Fig. 4 bluetooth monitoring modular.
Specific embodiment
In order to better understand the present invention, the present invention will be further explained below with reference to the attached drawings and specific examples:
As Figure 1-Figure 4, a kind of solar power supply circuit of small load equipment, including the storage of solar panel, super capacitor
It can module, lithium battery energy storage battery module, power management module and bluetooth monitoring modular；Solar panel passes through anti-backflow diode
Connect with super capacitor energy-storage block coupled in series, super capacitor energy-storage module, lithium battery energy storage battery module respectively with power management module
Connection；Super capacitor energy-storage module is connect with lithium battery energy storage battery module；Lithium battery energy storage battery module includes lithium battery；Bluetooth monitors mould
Block is connect with super capacitor energy-storage module, lithium battery energy storage battery module, power management module respectively；Super capacitor energy-storage module includes
Super capacitor, overvoltage protection diode；Super capacitor is connected in parallel with overvoltage protection diode；Overvoltage protection diode is for protecting
Shield super capacitor overvoltage is breakdown, and voltage protection value is the voltage rating of super capacitor.
Solar panel inputs super capacitor energy-storage mould for converting solar energy into electrical energy, and by the electric energy after conversion
Block；Super capacitor energy-storage module for store electric energy and by power management module to small load equipment provide power supply or to lithium electricity
The charging of pond energy-storage module；Lithium battery energy storage battery module is greater than the function of small load equipment for the electric energy in super capacitor energy-storage module
Time-consuming charges, when super capacitor energy-storage module supplies the electric energy deficiency of small load equipment by power management module to small
Load equipment electric discharge；Power management module is used to control the switching of super capacitor energy-storage module and lithium battery energy storage battery module, and defeated
Stable voltage source out；Bluetooth monitoring modular is used to monitor the state of super capacitor energy-storage module, lithium battery energy storage battery module, and controls
The output of power management module processed.It, can be effectively to solar powered using the AD Sampling Interface and I/O interface of bluetooth monitoring modular
Each state of circuit is monitored, and the output of controllable power load.The voltage of super capacitor, lithium electricity are selected in the present invention
Object of the pressure stabilizing output of the voltage and power management module in pond as monitoring, control, can also be as needed, and flexible configuration is more
Monitoring object.
As shown in figure 3, power management module with maintain regulated power supply output+5VD for control target, be provided simultaneously with overcurrent,
Input voltage+the VCC of the functions such as over-voltage, overheating protection, following (1) solar panel of main control strategies is greater than lithium battery
When pressure+Vbat, by+Vcc power input after power management module pressure stabilizing output+5VD.(2) the input electricity of solar panel
When pressure+VC is less than lithium battery voltage, lithium battery input+Vbat output+5VD power supply after power management module pressure stabilizing.(3) when too
When positive energy input voltage+Vcc is greater than lithium battery voltage+Vbat and lithium battery voltage is less than full charge pressure 4.2V, sun-generated electric power+
A part of Vcc is used to charge to lithium battery, must preferentially satisfaction+5VD regulated power supply export.
The capacity of super capacitor is it is ensured that the maximum charge power Pcmax of capacitor should be much larger than the maximum work of small load equipment
Rate Pomax such as can get preferable as a result, when i.e. night can not collect solar energy, most of electric energy by Pcmax > 10*Pomax
It is still powered by super capacitor, can avoid lithium battery repeated charge.
A kind of solar power supply circuit of small load equipment further includes switching tube；Switching tube is connect with power management module,
For controlling the on-off of power supply, bluetooth monitoring modular can be transmitted by wireless blue tooth, realize mobile terminal on super capacitor
The states such as electric energy, lithium battery energy are monitored, and are switched on or switched off small load equipment by Bluetooth commands control switch pipe
Power supply.
Wherein, anti-backflow diode uses Schottky diode IN5822, and overvoltage protection diode uses SMAJ6.0A, opens
The model IRF5210 of pipe is closed, bluetooth monitoring modular includes bluetooth module JDY-17.
A kind of method of supplying power to of the solar power supply circuit of small load equipment, comprising the following steps:
S1: solar panel collects solar energy and produces electricl energy the input super capacitor energy-storage module after anti-backflow diode.
S2: super capacitor energy-storage module receives the electric energy of solar panel input and makes the voltage Vc liter on super capacitor
It is high.
S3: power management module is used to manage the charge and discharge of super capacitor energy-storage module and lithium battery energy storage battery module, when too
When input voltage Vcc on positive energy solar panel is greater than the voltage Vbat of lithium battery, small load equipment is by super capacitor energy-storage module
Power supply, and if when the voltage Vbat of lithium battery is less than lithium battery fully charged ceiling voltage when Vmax, super capacitor energy-storage mould
The electric energy of block storage charges to lithium battery energy storage battery module, and the voltage Vc on super capacitor is restricted to close to the electricity on lithium battery
Press Vbat；
S4: when the electricity of the storage on lithium battery has been expired, and fully charged voltage reaches Vmax, lithium battery energy storage battery module is no longer connect
By the electric energy in super capacitor energy-storage module；Super capacitor is in addition to powering load, electric energy that solar panel persistently inputs
The voltage Vc on super capacitor can be made to increase, when the voltage on super capacitor reaches the discharge voltage of overvoltage protection diode,
Extra electric energy carries out vent discharge by overvoltage protection diode over the ground, prevents super capacitor over-voltage breakdown.
S5: when solar panel is collected less than electric energy, super capacitor energy-storage module continues to power to small load equipment,
Until the voltage Vc on super capacitor is less than the voltage Vbat on lithium battery, power management module switches to lithium battery energy storage battery module
It powers to small load equipment, it is ensured that the stable operation of small load equipment.
S6: bluetooth monitoring modular is activated by mobile terminal, and bluetooth monitoring modular is in super low-power consumption when not connected
Dormant state, Bluetooth power consumption only have tens microamperes, and mobile terminal passes through voltage, lithium battery of the bluetooth monitoring modular to super capacitor
Electricity, small load equipment payload size detected and acquire corresponding data.
The present invention is not limited to above-described specific embodiment, and the foregoing is merely preferable case study on implementation of the invention
, it is not intended to limit the invention, any modification done within the spirit and principles of the present invention and changes equivalent replacement
Into etc., it should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of solar power supply circuit of small load equipment, it is characterised in that: including solar panel, super capacitor energy-storage
Module, lithium battery energy storage battery module, power management module；The solar panel is connect with super capacitor energy-storage module, described
Super capacitor energy-storage module, lithium battery energy storage battery module are connect with power management module respectively；The super capacitor energy-storage module with
The connection of lithium battery energy storage battery module；The super capacitor energy-storage module includes super capacitor；The lithium battery energy storage battery module includes lithium
Battery；
The solar panel inputs super capacitor energy-storage mould for converting solar energy into electrical energy, and by the electric energy after conversion
Block；The super capacitor energy-storage module for store electric energy and by power management module to small load equipment provide power supply or to
The charging of lithium battery energy storage battery module；The lithium battery energy storage battery module is greater than small load for the electric energy in super capacitor energy-storage module
It charges when the power consumption of equipment, passes through power management when super capacitor energy-storage module supplies the electric energy deficiency of small load equipment
Module discharges to small load equipment；The power management module is for controlling super capacitor energy-storage module and lithium battery energy storage battery module
Switching, and export stable voltage source.
2. a kind of solar power supply circuit of small load equipment according to claim 1, it is characterised in that: the solar energy
Power supply circuit further includes bluetooth monitoring modular；The bluetooth monitoring modular respectively with super capacitor energy-storage module, lithium battery energy storage battery
Module, power management module connection；The bluetooth monitoring modular is for monitoring super capacitor energy-storage module, lithium battery energy storage battery module
State, and control the output of power management module.
3. a kind of solar power supply circuit of small load equipment according to claim 1, it is characterised in that: the solar energy
Solar panel is connect by anti-backflow diode with super capacitor energy-storage block coupled in series.
4. a kind of solar power supply circuit of small load equipment according to claim 1, it is characterised in that: the super electricity
Holding energy-storage module further includes overvoltage protection diode；The super capacitor is connected in parallel with overvoltage protection diode；The over-voltage
For protection diode for protecting super capacitor overvoltage breakdown, voltage protection value is the voltage rating of super capacitor.
5. a kind of solar power supply circuit of small load equipment according to claim 4, it is characterised in that: the super electricity
There are following relationships by the maximum power Pomax of the maximum charge power Pcmax of appearance and small load equipment:
Pcmax>10*Pomax。
6. a kind of solar power supply circuit of small load equipment according to claim 1, it is characterised in that: further include switch
Pipe；The switching tube is connect with power management module, for controlling the on-off of power supply.
7. a kind of method of supplying power to of the solar power supply circuit of small load equipment, it is characterised in that: the following steps are included:
S1: solar panel is collected after solar energy produces electricl energy and inputs super capacitor energy-storage module；
S2: super capacitor energy-storage module receives the electric energy of solar panel input and increases the voltage Vc on super capacitor；
S3: power management module is used to manage the charge and discharge of super capacitor energy-storage module and lithium battery energy storage battery module, works as solar energy
When input voltage Vcc on solar panel is greater than the voltage Vbat of lithium battery, small load equipment by super capacitor energy-storage module for power supply,
And if super capacitor energy-storage module stores when the voltage Vbat of lithium battery is less than lithium battery fully charged ceiling voltage when Vmax
Electric energy charge to lithium battery energy storage battery module, the voltage Vc on super capacitor is restricted to close to the voltage on lithium battery
Vbat；
S4: when the electricity of the storage on lithium battery has been expired, and fully charged voltage reaches Vmax, lithium battery energy storage battery module is no longer connect
By the electric energy in super capacitor energy-storage module；
S5: when solar panel is collected less than electric energy, super capacitor energy-storage module continues to power to small load equipment, until
Voltage Vc on super capacitor is less than the voltage Vbat on lithium battery, and power management module switches to lithium battery energy storage battery module to small
Load equipment power supply, it is ensured that the stable operation of small load equipment.
8. a kind of method of supplying power to of the solar power supply circuit of small load equipment according to claim 7, it is characterised in that:
Solar panel collection solar energy is produced electricl energy in the step S1 inputs super capacitor energy-storage after anti-backflow diode
Module.
9. a kind of method of supplying power to of the solar power supply circuit of small load equipment according to claim 7, it is characterised in that:
The step S4 further include: the electric energy that solar panel persistently inputs can be such that the voltage Vc on super capacitor increases, when super
When voltage on capacitor reaches the discharge voltage of overvoltage protection diode, extra electric energy by overvoltage protection diode over the ground into
Row vent discharge prevents super capacitor over-voltage breakdown.
10. a kind of method of supplying power to of the solar power supply circuit of small load equipment according to claim 7, feature exist
In: further comprising the steps of:
S6: bluetooth monitoring modular is activated by mobile terminal, and mobile terminal is by bluetooth monitoring modular to super capacitor
Voltage, the electricity of lithium battery, small load equipment payload size detected and acquire corresponding data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910555465.6A CN110277826A (en) | 2019-06-25 | 2019-06-25 | A kind of solar power supply circuit and method of supplying power to of small load equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910555465.6A CN110277826A (en) | 2019-06-25 | 2019-06-25 | A kind of solar power supply circuit and method of supplying power to of small load equipment |
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| CN110277826A true CN110277826A (en) | 2019-09-24 |
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| CN201910555465.6A Pending CN110277826A (en) | 2019-06-25 | 2019-06-25 | A kind of solar power supply circuit and method of supplying power to of small load equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110768353A (en) * | 2019-11-01 | 2020-02-07 | 福建和盛高科技产业有限公司 | Double-circuit power supply solar power supply device and control method thereof |
| CN111092478A (en) * | 2020-03-23 | 2020-05-01 | 腾色智能科技(南京)有限公司 | Power expansion device and method |
| WO2022095315A1 (en) * | 2020-11-09 | 2022-05-12 | 江苏科技大学 | Charging and discharging control and management method and device for sc-li-sc hybrid energy storage |
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| CN104901408A (en) * | 2015-06-15 | 2015-09-09 | 山东信通电子股份有限公司 | Solar power supply method and device employing super-capacitor to prolong service life of battery |
| CN106602691A (en) * | 2017-01-21 | 2017-04-26 | 安荣邦 | Energy collection utilization system and method thereof |
| CN210669609U (en) * | 2019-06-25 | 2020-06-02 | 广西电网有限责任公司电力科学研究院 | Solar power supply circuit of outdoor micro-power equipment |
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2019
- 2019-06-25 CN CN201910555465.6A patent/CN110277826A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104901408A (en) * | 2015-06-15 | 2015-09-09 | 山东信通电子股份有限公司 | Solar power supply method and device employing super-capacitor to prolong service life of battery |
| CN106602691A (en) * | 2017-01-21 | 2017-04-26 | 安荣邦 | Energy collection utilization system and method thereof |
| CN210669609U (en) * | 2019-06-25 | 2020-06-02 | 广西电网有限责任公司电力科学研究院 | Solar power supply circuit of outdoor micro-power equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110768353A (en) * | 2019-11-01 | 2020-02-07 | 福建和盛高科技产业有限公司 | Double-circuit power supply solar power supply device and control method thereof |
| CN111092478A (en) * | 2020-03-23 | 2020-05-01 | 腾色智能科技(南京)有限公司 | Power expansion device and method |
| WO2022095315A1 (en) * | 2020-11-09 | 2022-05-12 | 江苏科技大学 | Charging and discharging control and management method and device for sc-li-sc hybrid energy storage |
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