CN110138071A - A kind of Solar lamp system control method of the sustainable bright light based on dichotomy - Google Patents
A kind of Solar lamp system control method of the sustainable bright light based on dichotomy Download PDFInfo
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- CN110138071A CN110138071A CN201910556988.2A CN201910556988A CN110138071A CN 110138071 A CN110138071 A CN 110138071A CN 201910556988 A CN201910556988 A CN 201910556988A CN 110138071 A CN110138071 A CN 110138071A
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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
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A kind of Solar lamp system control method of the sustainable bright light based on dichotomy calculates battery capacity using integral, data are more accurate, the discharge capacity of battery is controlled by period and dichotomy simultaneously, the capacity of reasonable utilization battery, so that the Solar lamp of this system still is able to light for a long time in continuous overcast and rainy situation, cruising ability is strong.
Description
Technical field
The present invention relates to Solar lamp system control method field, in particular to a kind of sustainable bright light based on dichotomy
Solar energy system control method.
Background technique
Solar energy lamp product is widely applied by people instantly, and in known numerous solar products, we are not
Hardly possible finds that most of Solar lamp all not can avoid the situation of turning off the light under continuous rainy days.Do not use alternating current to street lamp power supply, road lamp power supply
In the case of, the solar energy lamp that the influence of weather just becomes most important, traditional can only mostly support 4-5 under conditions of rainy days
It.In the case where battery and solar panels determine, how to guarantee that solar energy lamp operation steady in a long-term seems particularly significant.
Summary of the invention
The purpose of the present invention is to provide a kind of in continuous rainy weather can long-time bright light Solar lamp
System control method.
Technical solution of the present invention: a kind of Solar lamp system control method of the sustainable bright light based on dichotomy,
It is characterized in that: the following steps are included:
1) voltage of lithium battery is obtained
2) deep discharge is carried out to full electric lithium battery, uses the full capacitance of integration method measurement lithium battery, CMAX=
3) it charges to lithium battery, the charge volume C of same day lithium battery is calculated using integration methodBAT, it is bright to calculate Solar lamp
The capacity C of lithium battery before lampn=C+CBAT (the wherein capacity that C is lithium battery before charging), while calculating current capacities accounting Cn/
CMAX
4) period 17:00 --- the 08:00 of Solar lamp bright light is set
5) condition of Solar lamp bright light: lithium battery current capacities accounting C is setn/CMAX> 15%, while need to be in the bright light of setting
Period, and solar panels collection voltages are lower than given threshold
6) temperature for obtaining lithium battery judges the temperature adjustment factor T of lithium battery, bright light period of the setting Solar lamp in setting
Each section in lithium battery electric discharge energy consumption: work as Cn/CMAXWhen > 25%, lithium battery uses the discharge capacity situation of dichotomy design are as follows:
17:00 --- 18:00,22:00 --- between 23:00, is discharged using invariable power, and discharge capacity is respectively 18% × 5.5% × T × Cn,
19:30 --- it between 20:30, is discharged using invariable power, discharge capacity is 18% × 33% × T × Cn, 18:00 --- lithium electricity between 19:30
The power of tank discharge is gradually increasing, the discharge capacity of this period is about 18% × 28% × T × Cn, 20:30 --- lithium battery between 22:00
Discharge power is gradually reduced, the discharge capacity of this period is about 18% × 28% × T × Cn, 23:00 --- 08:00 is put using invariable power
Electricity, discharge power 1W, discharge capacity 9W；As 15%≤Cn/CMAXWhen < 25%, discharged using invariable power, discharge power 1W
7) the actual discharge amount of that night lithium battery is calculated
Work as Cn/CMAXWhen > 25%, that night lithium battery actual discharge amount is t × 1+18% × T × CnT is equal to solar energy in Δ C(formula
The time t2+1 that lamp the next morning turns off the light, Δ C are that Solar lamp is later than 17:00 bright light, the electricity that lithium battery discharges less)；When
15%≤Cn/CMAXThat night lithium battery actual discharge amount is (t2+24-t1) × 1 when < 25%, and (t1 is equal to Solar lamp that night in formula
The time of bright light, t2 are the time turned off the light Solar lamp the next morning)
8) the next morning, when the collection voltages of solar panels are higher than the threshold values of setting or the time is more than morning 8:00, too
Positive energy lamp is turned off the light, and lithium battery charges, and is ready for circulation next time.
Further, work as Cn/CMAXWhen < 15%, the Solar lamp on that night not bright light.
Further, as 15%≤Cn/CMAXWhen, after actual lighting time on Solar lamp that night is that night 17:00, the sun
The collection voltages of energy plate are higher than setting lower than the collection voltages of time point t1 to the morning next day solar panels of the threshold values of setting
The time point t2 of threshold values.
Further, the t2 is less than 08:00.
Further, the electricity C before the lithium battery charging in the step 3 is equal to the capacity C of preceding lithium battery a whole nightnIt subtracts
The actual discharge amount of that night lithium battery.
Further, using the system control method of any one of claim 1 to 5, the Solar lamp system packet
Include MCU, GPRS module, constant pressure drive module, GPS module, Current Voltage acquisition module, lithium battery, solar panels, LED light
Plate, MPPT charge control module, temperature collecting module；The GPRS module, constant pressure drive module, GPS module, Current Voltage
Acquisition module, MPPT charge control module, temperature collecting module are connected with the MCU respectively；The MCU by GPRS module with
Backstage carries out data exchange；The lithium battery, solar panels, LED lamp panel are connected with the Current Voltage acquisition module respectively；Institute
LED lamp panel is stated to be controlled by the constant pressure drive module；The MCU control MPPT charge control module charges to the lithium battery；
The Current Voltage acquisition module sends collected current and voltage data to MCU；The GPS module for acquisition time with
Position location information, and send MCU to；The temperature of the temperature collecting module acquisition lithium battery sends MCU to.
Beneficial effects of the present invention: (1) present invention calculates battery capacity using integral, and data are more accurate, together
When pass through the period, light-operated and dichotomy controls the discharge capacity of battery, the capacity of reasonable utilization battery, so that the solar energy of this system
Lamp still is able to light for a long time in continuous overcast and rainy situation, the temperature that cruising ability strong (2) present invention passes through acquisition lithium battery
Degree, judges the temperature parameter of battery, so that this Solar lamp system can adapt to the environment in the north.
Detailed description of the invention
Fig. 1 is flow chart of the present invention；Fig. 2 is Solar lamp system principle diagram of the present invention；Fig. 3 is temperature tune of the invention
When section coefficient T is 1, lithium battery discharge capacity of the Solar lamp in bright light period each section of setting.
Specific embodiment
It is as shown in the figure: a kind of Solar lamp system control method of the sustainable bright light based on dichotomy, it is characterised in that:
The following steps are included:
1) voltage of lithium battery is obtained
2) deep discharge is carried out to full electric lithium battery, uses the full capacitance of integration method measurement lithium battery, CMAX=
3) it charges to lithium battery, the charge volume C of same day lithium battery is calculated using integration methodBAT, it is bright to calculate Solar lamp
The capacity C of lithium battery before lampn=C+CBAT (the wherein capacity that C is lithium battery before charging), while calculating current capacities accounting Cn/
CMAX
4) period 17:00 --- the 08:00 of Solar lamp bright light is set
5) condition of Solar lamp bright light: lithium battery current capacities accounting C is setn/CMAX> 15%, while need to be in the bright light of setting
Period, and solar panels collection voltages are lower than given threshold
6) temperature for obtaining lithium battery judges the temperature adjustment factor T of lithium battery, bright light period of the setting Solar lamp in setting
Each section in lithium battery electric discharge energy consumption: work as Cn/CMAXWhen > 25%, lithium battery uses the discharge capacity situation of dichotomy design are as follows:
17:00 --- 18:00,22:00 --- between 23:00, is discharged using invariable power, and discharge capacity is respectively 18% × 5.5% × T × Cn,
19:30 --- it between 20:30, is discharged using invariable power, discharge capacity is 18% × 33% × T × Cn, 18:00 --- lithium electricity between 19:30
The power of tank discharge is gradually increasing, the discharge capacity of this period is about 18% × 28% × T × Cn, 20:30 --- lithium battery between 22:00
Discharge power is gradually reduced, the discharge capacity of this period is about 18% × 28% × T × Cn, 23:00 --- 08:00 is put using invariable power
Electricity, discharge power 1W, discharge capacity 9W；As 15%≤Cn/CMAXWhen < 25%, discharged using invariable power, discharge power 1W
7) the actual discharge amount of that night lithium battery is calculated
Work as Cn/CMAXWhen > 25%, that night lithium battery actual discharge amount is t × 1+18% × T × CnT is equal to solar energy in Δ C(formula
The time t2+1 that lamp the next morning turns off the light, Δ C are that Solar lamp is later than 17:00 bright light, the electricity that lithium battery discharges less)；When
15%≤Cn/CMAXThat night lithium battery actual discharge amount is (t2+24-t1) × 1 when < 25%, and (t1 is equal to Solar lamp that night in formula
The time of bright light, t2 are the time turned off the light Solar lamp the next morning)
8) the next morning, when the collection voltages of solar panels are higher than the threshold values of setting or the time is more than morning 8:00, too
Positive energy lamp is turned off the light, and lithium battery charges, and is ready for circulation next time.
Work as Cn/CMAXWhen < 15%, the Solar lamp on that night not bright light.
As 15%≤Cn/CMAXWhen, after actual lighting time on Solar lamp that night is that night 17:00, solar panels
Collection voltages are higher than the threshold values set lower than the collection voltages of time point t1 to the morning next day solar panels of the threshold values of setting
Time point t2.
The t2 is less than 08:00.
The electricity C before lithium battery charging in the step 3 is equal to the capacity C of preceding lithium battery a whole nightnSubtract that night lithium
The actual discharge amount of battery.
The Solar lamp system includes MCU1, GPRS module 2, constant pressure drive module 3, GPS module 4, Current Voltage
Acquisition module 5, lithium battery 6, solar panels 7, LED lamp panel 8, MPPT charge control module 9, temperature collecting module 10；It is described
GPRS module 2, constant pressure drive module 3, GPS module 4, Current Voltage acquisition module 5, MPPT charge control module 9, temperature are adopted
Collection module 10 is connected with the MCU1 respectively；The MCU1 carries out data exchange by GPRS module 2 and backstage；The lithium battery
6, solar panels 7, LED lamp panel 8 are connected with the Current Voltage acquisition module 5 respectively；The LED lamp panel 8 is driven by the constant pressure
Dynamic model block 3 controls；The MCU1 control MPPT charge control module 9 charges to the lithium battery 6；The Current Voltage acquires mould
Block 5 sends collected current and voltage data to MCU1；The GPS module 4 is used for acquisition time and position location information, and
Send MCU1 to；The temperature that the temperature collecting module 10 acquires lithium battery 6 sends MCU1 to.
Example one: when degree/day is 22 degree ~ 26 degree, battery uses 35AH/12.8V ferric phosphate lithium cell, electricity before installing
It has been filled with, solar panels use 150W solar panels, and setting test LED lamp panel PID tracks discharge current Itest=2.5A, to lithium
The output power of battery carries out data integral, and both output electric current per second was multiplied and added up with voltage, calculated transient state function per second
Rate PS=3.78*13.32=50.3496W passes through actual test CMAX=CBAT =PS*Ttest=449.5Wh(Ttest is to have discharged
At the accumulated time of calculating), volume test is completed.MPPT charging, integral calculation charge power value P, the very night are opened in daybreak next day
Evening carrys out interim, solar panels voltage VPV< 5.5V, GPS acquisition time are 17:00, the next morning bright light to 08:00, before bright light
Lithium battery capacity Cn=405.2Wh, at this time Cn/ CMAX > 25%, battery temperature parameter T are that 1, MCU calculates putting for that night lithium battery
Electricity is 405.2*18%+9=81.9Wh；After Solar lamp is turned off the light within second day, lithium battery charges, and is tested by experiment,
Under normal rainy weather, the charge volume of the solar panels one day (08:00 --- 17:00) of 150W is about 30W, it is assumed that is within second day
Normal rainy weather, the capacity of lithium battery is 353.3Wh before second day Solar lamp bright light, at this time Cn/ CMAX > 25%, T 1,
The discharge capacity of lithium battery be t × 1+18% × 353.3- Δ C, it is assumed that within the bright light period of setting Solar lamp can bright light, that
The discharge capacity of the lithium battery on that night is maximum discharge capacity, discharge capacity 71.6Wh, it is assumed that weather is since third day
Normal rainy weather, solar energy bright light are to set bright light period all the period of time bright light, that is, lithium battery is maximum every night
Discharge capacity in the case where, the operating condition of the daily discharge capacity of lithium battery and this Solar lamp system for details see attached table one.
From subordinate list one, we be can be clearly seen that, every night be maximum electric discharge under normal rainy weather, while in lithium battery
Under conditions of amount, the Solar lamp of this system can be used always, be not in the case where turning off the light.Therefore it is using this
System, under normal rainy weather, Solar lamp can be used always, will not be turned off the light.
Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.
Subordinate list one
| Days running | Battery capacity | Normal rainy weather charge volume | Present battery capacity | Capacity accounting | Discharge capacity every night | Battery total capacity |
| 1 | 405.2 | 405.2 | 90% | 81.9 | 449.5 | |
| 2 | 323.3 | 30 | 353.3 | 79% | 71.6 | 449.5 |
| 3 | 281.7 | 30 | 311.7 | 69% | 64.1 | 449.5 |
| 4 | 247.6 | 30 | 277.6 | 62% | 58.0 | 449.5 |
| 5 | 219.6 | 30 | 249.6 | 56% | 52.9 | 449.5 |
| 6 | 196.7 | 30 | 226.7 | 50% | 48.8 | 449.5 |
| 7 | 177.9 | 30 | 207.9 | 46% | 45.4 | 449.5 |
| 8 | 162.5 | 30 | 192.5 | 43% | 42.6 | 449.5 |
| 9 | 149.8 | 30 | 179.8 | 40% | 40.4 | 449.5 |
| 10 | 139.5 | 30 | 169.5 | 38% | 38.5 | 449.5 |
| 11 | 131.0 | 30 | 161.0 | 36% | 37.0 | 449.5 |
| 12 | 124.0 | 30 | 154.0 | 34% | 35.7 | 449.5 |
| 13 | 118.3 | 30 | 148.3 | 33% | 34.7 | 449.5 |
| 14 | 113.6 | 30 | 143.6 | 32% | 33.8 | 449.5 |
| 15 | 109.7 | 30 | 139.7 | 31% | 33.2 | 449.5 |
| 16 | 106.6 | 30 | 136.6 | 30% | 32.6 | 449.5 |
| 17 | 104.0 | 30 | 134.0 | 30% | 32.1 | 449.5 |
| 18 | 101.9 | 30 | 131.9 | 29% | 31.7 | 449.5 |
| 19 | 100.1 | 30 | 130.1 | 29% | 31.4 | 449.5 |
| 20 | 98.7 | 30 | 128.7 | 29% | 31.2 | 449.5 |
| 21 | 97.5 | 30 | 127.5 | 28% | 31.0 | 449.5 |
| 22 | 96.6 | 30 | 126.6 | 28% | 30.8 | 449.5 |
| 23 | 95.8 | 30 | 125.8 | 28% | 30.6 | 449.5 |
| 24 | 95.2 | 30 | 125.2 | 28% | 30.5 | 449.5 |
| 25 | 94.6 | 30 | 124.6 | 28% | 30.4 | 449.5 |
| 26 | 94.2 | 30 | 124.2 | 28% | 30.4 | 449.5 |
| 27 | 93.8 | 30 | 123.8 | 28% | 30.3 | 449.5 |
| 28 | 93.5 | 30 | 123.5 | 27% | 30.2 | 449.5 |
| 29 | 93.3 | 30 | 123.3 | 27% | 30.2 | 449.5 |
| 30 | 93.1 | 30 | 123.1 | 27% | 30.2 | 449.5 |
| 31 | 93.0 | 30 | 123.0 | 27% | 30.1 | 449.5 |
| 32 | 92.8 | 30 | 122.8 | 27% | 30.1 | 449.5 |
| 33 | 92.7 | 30 | 122.7 | 27% | 30.1 | 449.5 |
| 34 | 92.6 | 30 | 122.6 | 27% | 30.1 | 449.5 |
| 35 | 92.6 | 30 | 122.6 | 27% | 30.1 | 449.5 |
| 36 | 92.5 | 30 | 122.5 | 27% | 30.0 | 449.5 |
| 37 | 92.4 | 30 | 122.4 | 27% | 30.0 | 449.5 |
| 38 | 92.4 | 30 | 122.4 | 27% | 30.0 | 449.5 |
| 39 | 92.4 | 30 | 122.4 | 27% | 30.0 | 449.5 |
| 40 | 92.3 | 30 | 122.3 | 27% | 30.0 | 449.5 |
| 41 | 92.3 | 30 | 122.3 | 27% | 30.0 | 449.5 |
| 42 | 92.3 | 30 | 122.3 | 27% | 30.0 | 449.5 |
| 43 | 92.3 | 30 | 122.3 | 27% | 30.0 | 449.5 |
| 44 | 92.3 | 30 | 122.3 | 27% | 30.0 | 449.5 |
| 45 | 92.3 | 30 | 122.3 | 27% | 30.0 | 449.5 |
Claims (6)
1. a kind of Solar lamp system control method of the sustainable bright light based on dichotomy, it is characterised in that: including following step
It is rapid:
(1) voltage of lithium battery is obtained
(2) deep discharge is carried out to full electric lithium battery, uses the full capacitance of integration method measurement lithium battery, CMAX=
(3) it charges to lithium battery, the charge volume C of same day lithium battery is calculated using integration methodBAT, calculate Solar lamp
The capacity C of lithium battery before bright lightn=C+CBAT (the wherein capacity that C is lithium battery before charging), while calculating current capacities accounting
Cn/CMAX
(4) period 17:00 --- the 08:00 of Solar lamp bright light is set
(5) condition of Solar lamp bright light: lithium battery current capacities accounting C is setn/CMAX> 15%, while need to be in the bright light of setting
Period, and solar panels collection voltages are lower than given threshold
(6) temperature for obtaining lithium battery, judges the temperature adjustment factor T of lithium battery, sets Solar lamp in the bright light of setting
The electric discharge energy consumption of lithium battery in each section of section: work as Cn/CMAXWhen > 25%, lithium battery uses the discharge capacity situation of dichotomy design
Are as follows: 17:00 --- 18:00,22:00 --- between 23:00, is discharged using invariable power, discharge capacity be respectively 18% × 5.5% × T ×
Cn, 19:30 --- it between 20:30, is discharged using invariable power, discharge capacity is 18% × 33% × T × Cn, 18:00 --- lithium between 19:30
The power of battery discharge is gradually increasing, the discharge capacity of this period is about 18% × 28% × T × Cn, 20:30 --- lithium electricity between 22:00
Tank discharge power is gradually reduced, the discharge capacity of this period is about 18% × 28% × T × Cn, 23:00 --- 08:00 is using invariable power
Electric discharge, discharge power 1W, discharge capacity 9W；As 15%≤Cn/CMAXWhen < 25%, discharged using invariable power, discharge power 1W
(7) the actual discharge amount of that night lithium battery is calculated
Work as Cn/CMAXWhen > 25%, that night lithium battery actual discharge amount is t × 1+18% × T × CnT is equal to Solar lamp in Δ C(formula
The time t2+1 that the next morning turns off the light, Δ C are that Solar lamp is later than 17:00 bright light, the electricity that lithium battery discharges less)；When 15%
≤Cn/CMAXThat night lithium battery actual discharge amount is (t2+24-t1) × 1 when < 25%, and (t1 is equal to Solar lamp that night bright light in formula
Time, t2 is time for turning off the light Solar lamp the next morning)
(8) the next morning, when the collection voltages of solar panels are higher than the threshold values of setting or the time is more than morning 8:00, too
Positive energy lamp is turned off the light, and lithium battery charges, and is ready for circulation next time.
2. a kind of Solar lamp system control method of sustainable bright light based on dichotomy according to claim 1,
It is characterized in that: working as Cn/CMAXWhen < 15%, the Solar lamp on that night not bright light.
3. a kind of Solar lamp system control method of sustainable bright light based on dichotomy according to claim 1,
It is characterized in that: as 15%≤Cn/CMAXWhen, after actual lighting time on Solar lamp that night is that night 17:00, solar panels
Collection voltages are higher than the threshold values set lower than the collection voltages of time point t1 to the morning next day solar panels of the threshold values of setting
Time point t2.
4. a kind of Solar lamp system control method of sustainable bright light based on dichotomy according to claim 3,
Be characterized in that: the t2 is less than 08:00.
5. a kind of Solar lamp system control method of sustainable bright light based on dichotomy according to claim 1,
Be characterized in that: the electricity C before lithium battery charging in the step 3 is equal to the capacity C of preceding lithium battery a whole nightnSubtract that night lithium
The actual discharge amount of battery.
6. a kind of Solar lamp system control method of sustainable bright light based on dichotomy according to claim 1,
Be characterized in that: using the system control method of any one of claim 1 to 5, the Solar lamp system include MCU,
GPRS module, constant pressure drive module, GPS module, Current Voltage acquisition module, lithium battery, solar panels, LED lamp panel, MPPT
Charge control module, temperature collecting module；The GPRS module, constant pressure drive module, GPS module, Current Voltage acquire mould
Block, MPPT charge control module, temperature collecting module are connected with the MCU respectively；The MCU by GPRS module and backstage into
Row data exchange；The lithium battery, solar panels, LED lamp panel are connected with the Current Voltage acquisition module respectively；The LED
Lamp plate is controlled by the constant pressure drive module；The MCU control MPPT charge control module charges to the lithium battery；The electricity
It flows voltage acquisition module and sends collected current and voltage data to MCU；The GPS module is fixed for acquisition time and position
Position information, and send MCU to；The temperature of the temperature collecting module acquisition lithium battery sends MCU to.
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