CN108233518A - Rechargeable solar battery control method and system - Google Patents
Rechargeable solar battery control method and system Download PDFInfo
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- CN108233518A CN108233518A CN201810037553.2A CN201810037553A CN108233518A CN 108233518 A CN108233518 A CN 108233518A CN 201810037553 A CN201810037553 A CN 201810037553A CN 108233518 A CN108233518 A CN 108233518A
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
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- H02J7/0077—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of rechargeable solar battery control method and system, which includes：Triggering solar charger enters starting state；The solar charger is enabled to acquire and handle the electric power signal of solar cell；The solar charger is controlled to charge for load, and detects the output voltage of the solar charger in real time；When the output voltage is more than or equal to preset first voltage threshold value, charge by load of scheduled first charging current；When the output voltage is less than the first voltage threshold value, charge by load of scheduled second charging current；Detection charging current in real time；When charging current is less than preset cut-off current threshold value, the solar charger is controlled to close output；It triggers the solar charger and enters standby mode.The present invention also ensures the whole work efficiency of solar cell while the function of ensureing the solar charger used in shared bicycle is further perfect, reliable.
Description
Technical field
The present invention relates to area of solar cell used in shared bicycle more particularly to a kind of rechargeable solar battery controlling parties
Method and system.
Background technology
By the shared bicycle of photovoltaic power supply, need that the energy that battery absorbs is converted to load using solar charger
Electric energy needed for (such as accumulator on bicycle) charges so as to fulfill for load.Alleged solar charger, also referred to as solar energy
Booster or boost DC/DC converter, but the solar charger function at present used in shared bicycle is single, to the energy content of battery
Acquisition, rear class is exported and feedback to load etc. lacks the control strategy of more system, it is whole to be easy to cause battery
Body efficiency is bad, thus it is for example possible to be difficult to restore after causing charging current unreasonable distribution, output failure or reversely charging leads to electricity
Road and solar cell are impacted.
Invention content
The object of the present invention is to provide a kind of rechargeable solar battery control method and system, to meet to sharing bicycle institute
With reasonable, the effective control of solar electric power supply system.
The technical solution adopted by the present invention is as follows：
A kind of rechargeable solar battery control method, including：
Triggering solar charger enters starting state；
The solar charger is enabled to acquire and handle the electric power signal of solar cell；
The solar charger is controlled to charge for load, and detects the output voltage of the solar charger in real time；
When the output voltage is more than or equal to preset first voltage threshold value, using scheduled first charging current as load
Charging；
When the output voltage is less than the first voltage threshold value, charge by load of scheduled second charging current；
Detection charging current in real time；
When charging current is less than preset cut-off current threshold value, the solar charger is controlled to close output；
It triggers the solar charger and enters standby mode.
Preferably, after the triggering solar charger enters starting state, the control method further includes：
Detect the open-circuit voltage of solar cell；
When the open-circuit voltage is more than preset second voltage threshold value, enables the solar charger and acquire and handle
The electric power signal of solar cell.
Preferably, after the triggering solar charger enters starting state, the control method further includes：
Detect whether the solar charger connects load；
It acquires if so, enabling the solar charger and handles the electric power signal of solar cell.
Preferably, the control method further includes：
In charging process is loaded, the voltage of solar cell is detected in real time；
When the voltage of solar cell is less than preset tertiary voltage threshold value, the solar charger is controlled to close defeated
Go out.
Preferably, the control method further includes：
According to the output voltage and the voltage of solar cell, the maximum power point of solar cell is calculated；
According to the maximum power point, the charging current is adjusted.
A kind of rechargeable solar battery control system, including：
Starting module, the starting module enter starting state for triggering solar charger；
Input control module, the input control module acquire for enabling the solar charger and handle solar energy
The electric power signal of battery；
Output monitoring module, the output monitoring module are that load is charged, and real for controlling the solar charger
When detect the output voltage of the solar charger；
Charging current control module, the charging current control module are used for when the output voltage is more than or equal to preset
During first voltage threshold value, charge by load of scheduled first charging current；
The charging current control module is additionally operable to when the output voltage is less than the first voltage threshold value, with pre-
The second fixed charging current charges for load；
Charging current detection module, the charging current detection module is for detection charging current in real time；
Output control module, the output control module are used for when charging current is less than preset cut-off current threshold value,
The solar charger is controlled to close output；
Standby module enters standby mode for triggering the solar charger.
Preferably, the control system further includes：
Openning circuit voltage detection module, the openning circuit voltage detection module are used to trigger solar recharging in the starting module
After device enters starting state, the open-circuit voltage of solar cell is detected；
The input control module is additionally operable to, when the open-circuit voltage is more than preset second voltage threshold value, enable institute
State the electric power signal that solar charger acquires and handles solar cell.
Preferably, the control system further includes：
Load detecting module, the load detecting module are used to enter in starting module triggering solar charger and open
After dynamic state, detect whether the solar charger connects load；
The input control module if it is yes to be additionally operable to the load detecting module output, enables the solar charging
Electric appliance acquires and handles the electric power signal of solar cell.
Preferably, the control system further includes：
Input monitoring module, the input monitoring module are used in charging process is loaded, and detect solar cell in real time
Voltage；
The output control module is additionally operable to when the voltage of solar cell is less than preset tertiary voltage threshold value, control
It makes the solar charger and closes output.
Preferably, the control system further includes：
Computing module, the computing module are used for the voltage according to the output voltage and solar cell, calculate the sun
The maximum power point of energy battery；
The charging current control module is additionally operable to, according to the maximum power point, adjust the charging current.
Control method proposed by the present invention by monitoring the systematicness that solar charger is output and input, can make to bear
The charging process of load is effectively controlled and optimizes, such as makes charging current distribution more reasonable, effectively avoids reversely charging to the sun
The impact of energy battery；Thus, the present invention is further perfect, reliable in the function of ensureing the solar charger used in shared bicycle
While, also ensure the whole work efficiency of solar cell.
Description of the drawings
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step description, wherein：
Fig. 1 is the flow chart of the embodiment of rechargeable solar battery control method provided by the invention；
Fig. 2 is the flow chart of the preferred embodiment of rechargeable solar battery control method provided by the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not construed as limiting the claims.
The present invention provides a kind of embodiment of rechargeable solar battery control method, as shown in Figure 1, the control method packet
Include following steps：
Step S1, triggering solar charger enters starting state.
Step S2, enabled solar charger acquires and handles the electric power signal of solar cell；Need exist for explanation
It is that the processing usually carries out boosting and voltage stabilizing operation, furthermore the electric power signal refers to the electricity exported by solar cell
Pressure and/or electric current, are also the commonly called solar cell input voltage in this field, input current.
After solar charger is to electric power signal processing, performs step S3, solar charger is controlled to charge for load, and
The output voltage of detection solar charger in real time.
Step S4, judge the relationship of output voltage and first voltage threshold value；First voltage threshold value designated herein, refers to basis
Solar cell and the concrete condition for loading electrical property, identified solar charger are exported to the element task electricity of load
Pressure, can be a numberical range in practical operation, such as be directed to certain solar charger and bicycle for sharing bicycle
On accumulator, first voltage threshold value can be set as 4.0V~4.5V.
When the output voltage of solar charger is more than or equal to the first voltage threshold value, it is believed that solar-electricity at this time
The working condition of pond and solar charger (or being interpreted as charged state) well, then then performs step S51, with scheduled the
One charging current charges for load, and the first charging current described here refers to permitted maximum operating currenbt, in state
Under the premise of good, charge efficiency is fully ensured that, concrete numerical value can also be such as directed to share depending on actual conditions
Accumulator on certain solar charger and bicycle of bicycle, the first charging current can be set as 1A~2A；But work as solar energy
When the output voltage of charger is less than the first voltage threshold value, it is believed that charged state at this time is not good enough, then can perform step
Rapid S52, it charges by load of scheduled second charging current, the second charging current described here refers to permitted minimum work
Electric current, under the premise of state is not good enough, guarantee remains to carry out charging operations to load in the way of similar trickle, avoids filling
The situation that electricity surprisingly terminates occurs, certainly, as it was noted above, its concrete numerical value can also be such as directed to depending on actual conditions
For sharing the accumulator on certain solar charger and bicycle of bicycle, the second charging current can be set as 100mA~
150mA, and fixed second charging current value may be used in practical operation and charge to load, to ensure in bad state
Under charge stability.Additionally it may be noted that it will be appreciated by persons skilled in the art that the output of aforementioned solar charger
Voltage is less than first voltage threshold value, refers to that output voltage is less than the element task voltage for load charging, but output electricity at this time
Pressure remains at least meet the minimum standard for charging to load, that is to say that output voltage certainly exists a normal work model
It encloses, if output voltage is less than absolute lower limiting value, shows to be now in being not enough to the situation of load charging (for shared single
For vehicle, lower limiting value can be 3.7V, such as the situation that output voltage is 3V), such case is not in limit of consideration of the present invention.
After charging current is determined, during charging for load, continue to execute step S6, detect charging current in real time,
To determine whether load fills with.
Specifically, step S7, judge the relationship of charging current and preset cut-off current threshold value；Preset section designated herein
Only current threshold refers to according to determined by the concrete condition of load electrical property, is used to indicate the current value that load is full of, such as needle
For sharing the accumulator of bicycle, cut-off current threshold value can be set as 70mA.
Therefore, when charging current is less than the cut-off current threshold value, then it is assumed that be full of load, step can be performed at this time
Rapid S8, control solar charger close output；Conversely, it can then continue to detect charging current.
Finally, execution step S9, triggering solar charger enter standby mode, to treat next task.
Can be to above example further explanation, aforementioned enabled solar charger acquires and handles solar-electricity
The electric power signal in pond in practical operation, can also be implemented with following preferred embodiment：
One, after solar charger is started, detection solar charger whether connected load, if connected
Load is connect, then can perform the action that enabled solar charger acquired and handled the electric power signal of solar cell；If not
Connection load, then can trigger solar charger and enter standby mode, to treat that rear class connection finishes, then carry out charging operations,
It may insure the safety and reliability of solar charger output in this way.
Secondly, after solar charger is started, the open-circuit voltage of solar cell is detected, to ensure solar cell
Original state is in normal range of operation, is also when open-circuit voltage is more than preset second voltage threshold value, then can enable
Solar charger acquires and handles the electric power signal of solar cell, to carry out subsequent charge operation, the second electricity designated herein
Threshold value is pressed, refers to the concrete condition according to solar cell electrical property, voltage that is identified, being used to indicate battery normal condition
Value, is such as directed to the solar cell for sharing bicycle, and second voltage threshold value can be set as 1.5V, be detected too when the starting stage
Positive energy battery is bad or does not have charging work condition (being, for example, less than equal to second voltage threshold value), then can trigger solar charging
Electric appliance enters standby mode, after solar cell condition satisfaction, then to carry out charging operations.
Further, the two connected applications are also conceivable to for above two preferred embodiment, with preferable reality shown in Fig. 2
Example is applied as reference, after triggering solar charger enters starting state, can be performed as follows：
Step S201, judge whether to have connected load.
And after determining to have connected load, perform step S202, judge whether the open-circuit voltage of solar cell is more than
Preset second voltage threshold value.
And after determining that open-circuit voltage is more than second voltage threshold value, step S2, enabled solar charger acquisition are performed simultaneously
Handle the electric power signal of solar cell.
If it is determined that solar charger is not connected with loading or the open-circuit voltage of solar cell is not more than second voltage
During threshold value, then step S9 can be performed, triggering solar charger enters standby mode.
In conjunction with preferred embodiment shown in Fig. 2, before after charging current is determined and whether determining to be full of, the present invention
It also proposes during charging is loaded, performs step S61, the voltage for detecting solar cell in real time, solar energy designated herein
The voltage of battery is the solar cell input voltage being mentioned above.
And via step S62, judge solar cell voltage be less than preset tertiary voltage threshold value when, perform step
S8, control solar charger close output.It should be noted that tertiary voltage threshold value designated herein is according to solar-electricity
The concrete conditions such as pond, solar charger and load electrical property, the determining solar cell input voltage of institute are difficult to ensure that rear class is filled
Electrically operated voltage threshold is such as directed to the solar cell for sharing bicycle, and tertiary voltage threshold value can be set as 0.8V, that is,
If being the solar cell detected in charging process as power supply source, during power supply capacity deficiency (such as battery is blocked
Or situations such as meeting the cloudy day), then it can be by the way that solar charger be made to close output, that is to say suspension or terminates charging operations.
Based on above-described embodiment and its preferred embodiment, the present invention can also advanced optimize, in charging process is loaded, root
According to aforementioned output voltage and the voltage of aforementioned solar cell, the maximum power point of solar cell is calculated, and with maximum power
Point, the output of dynamic regulation solar charger such as can adjust charging current so that charge efficiency is optimal in aforementioned range
And maximize, in practical operation, can preferred maximum power point tracking technology (MPPT) etc., be dynamically adapted with realizing
The input impedance of solar charger, it is ensured that charger input impedance is exactly matched with solar cell, so as to the maximum extent
It improves from solar cell to solar charger again to the energy transfer efficiency of load and whole efficiency.
It, can be with the present invention also provides a kind of rechargeable solar battery control system corresponding to preceding method embodiment
Including such as lower component：
For triggering the starting module that solar charger enters starting state；For enabling solar charger acquisition simultaneously
Handle the input control module of the electric power signal of solar cell；For solar charger to be controlled to charge for load, and in real time
Detect the output monitoring module of the output voltage of solar charger；For working as output voltage more than or equal to preset first voltage
During threshold value, using scheduled first charging current as load charging and when output voltage is less than first voltage threshold value, with predetermined
The second charging current be load charging charging current control module；For detecting charging current for charging current detecting mould in real time
Block；For when charging current is less than preset cut-off current threshold value, control solar charger to close the output control of output
Module；And for triggering the standby module that solar charger enters standby mode.
Corresponding to aforementioned preferred embodiment, further comprised in a preferred embodiment of the control system in starting module
After triggering solar charger enters starting state, the openning circuit voltage detection module of the open-circuit voltage of solar cell is detected；And
And aforementioned input control module is additionally operable to, when open-circuit voltage is more than preset second voltage threshold value, enable solar charger
Acquire and handle the electric power signal of solar cell.
Corresponding to aforementioned preferred embodiment, further comprise starting mould in another preferred embodiment of the control system
After block triggering solar charger enters starting state, whether detection solar charger connects the load detecting module of load；
Also, it is yes that if aforementioned input control module, which is additionally operable to the output of load detecting module, enabled solar charger is acquired and is located
Manage the electric power signal of solar cell.
Corresponding to aforementioned preferred embodiment, further comprise to fill in load in another preferred embodiment of the control system
In electric process, the input monitoring module of the voltage of solar cell is detected in real time；Also, aforementioned output control module is additionally operable to work as
When the voltage of solar cell is less than preset tertiary voltage threshold value, control solar charger closes output.
Corresponding to aforementioned preferred embodiment, further comprised in another preferred embodiment of the control system for according to output
The voltage of voltage and solar cell calculates the computing module of the maximum power point of solar cell；Also, aforementioned charging current
Control module is additionally operable to, according to maximum power point, adjust charging current.
Finally, for each module in above system it should be noted that, on the one hand, its operation principle can refer to previously for
The explanation of control method, details are not described herein；On the other hand, above-mentioned all parts embodiment can with hardware realization or with
The software module run on one or more processor or microcontroller or any control hardware is realized or the group with them
It closes and realizes, such as can be the block combiner in above-described embodiment into a upper module, it is, of course, also possible to them further
Multiple the next modules etc. are split into, this present invention is not construed as limiting.
Be described in detail based on the embodiments shown in the drawings the present invention structure, feature and effect, but more than
Described is only presently preferred embodiments of the present invention, needs to explain, and the technology involved by above-described embodiment and its preferred embodiment is special
Sign, those skilled in the art can be under the premise of not departing from, not changing mentality of designing and the technique effect of the present invention, rationally
Ground combination collocation is into a variety of equivalent schemes；Therefore, the present invention is every according to the present invention's not to limit practical range shown in drawing
The made change of conception or the equivalent embodiment for being revised as equivalent variations, do not go beyond the spirit of the description and the drawings
When, it should all be within the scope of the present invention.
Claims (10)
1. a kind of rechargeable solar battery control method, which is characterized in that including：
Triggering solar charger enters starting state；
The solar charger is enabled to acquire and handle the electric power signal of solar cell；
The solar charger is controlled to charge for load, and detects the output voltage of the solar charger in real time；
When the output voltage is more than or equal to preset first voltage threshold value, filled by load of scheduled first charging current
Electricity；
When the output voltage is less than the first voltage threshold value, charge by load of scheduled second charging current；
Detection charging current in real time；
When charging current is less than preset cut-off current threshold value, the solar charger is controlled to close output；
It triggers the solar charger and enters standby mode.
2. control method according to claim 1, which is characterized in that enter startup shape in the triggering solar charger
After state, the control method further includes：
Detect the open-circuit voltage of solar cell；
When the open-circuit voltage is more than preset second voltage threshold value, enables the solar charger and acquire and handle the sun
The electric power signal of energy battery.
3. control method according to claim 1, which is characterized in that enter startup shape in the triggering solar charger
After state, the control method further includes：
Detect whether the solar charger connects load；
It acquires if so, enabling the solar charger and handles the electric power signal of solar cell.
4. control method according to claim 1, which is characterized in that the control method further includes：
In charging process is loaded, the voltage of solar cell is detected in real time；
When the voltage of solar cell is less than preset tertiary voltage threshold value, the solar charger is controlled to close output.
5. control method according to claim 4, which is characterized in that the control method further includes：
According to the output voltage and the voltage of solar cell, the maximum power point of solar cell is calculated；
According to the maximum power point, the charging current is adjusted.
6. a kind of rechargeable solar battery control system, which is characterized in that including：
Starting module, the starting module enter starting state for triggering solar charger；
Input control module, the input control module acquire for enabling the solar charger and handle solar cell
Electric power signal；
Output monitoring module, the output monitoring module are examined in real time for the solar charger to be controlled to charge for load
Survey the output voltage of the solar charger；
Charging current control module, the charging current control module are used to be more than or equal to preset first when the output voltage
During voltage threshold, charge by load of scheduled first charging current；
The charging current control module is additionally operable to when the output voltage is less than the first voltage threshold value, with scheduled
Second charging current charges for load；
Charging current detection module, the charging current detection module is for detection charging current in real time；
Output control module, the output control module are used for when charging current is less than preset cut-off current threshold value, control
The solar charger closes output；
Standby module enters standby mode for triggering the solar charger.
7. control system according to claim 6, which is characterized in that the control system further includes：
Openning circuit voltage detection module, the openning circuit voltage detection module be used for the starting module trigger solar charger into
After entering starting state, the open-circuit voltage of solar cell is detected；
The input control module is additionally operable to when the open-circuit voltage is more than preset second voltage threshold value, enable it is described too
Positive energy charger acquires and handles the electric power signal of solar cell.
8. control system according to claim 6, which is characterized in that the control system further includes：
Load detecting module, the load detecting module are used to enter startup shape in starting module triggering solar charger
After state, detect whether the solar charger connects load；
The input control module if it is yes to be additionally operable to the load detecting module output, enables the solar charger
Acquire and handle the electric power signal of solar cell.
9. control system according to claim 6, which is characterized in that the control system further includes：
Input monitoring module, the input monitoring module are used in charging process is loaded, and detect the electricity of solar cell in real time
Pressure；
The output control module is additionally operable to, when the voltage of solar cell is less than preset tertiary voltage threshold value, control institute
It states solar charger and closes output.
10. control system according to claim 9, which is characterized in that the control system further includes：
Computing module, the computing module are used for the voltage according to the output voltage and solar cell, calculate solar-electricity
The maximum power point in pond；
The charging current control module is additionally operable to, according to the maximum power point, adjust the charging current.
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| CN201810037553.2A CN108233518A (en) | 2018-01-15 | 2018-01-15 | Rechargeable solar battery control method and system |
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