CN109088472A - One kind being based on MPPT photovoltaic semiconductors laser luminescent system - Google Patents
One kind being based on MPPT photovoltaic semiconductors laser luminescent system Download PDFInfo
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- CN109088472A CN109088472A CN201810957370.2A CN201810957370A CN109088472A CN 109088472 A CN109088472 A CN 109088472A CN 201810957370 A CN201810957370 A CN 201810957370A CN 109088472 A CN109088472 A CN 109088472A
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- circuit
- photovoltaic
- semiconductor laser
- battery
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
- H01S5/042—Electrical excitation ; Circuits therefor
-
- 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
-
- 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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1582—Buck-boost converters
-
- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
-
- 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)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to one kind to be based on MPPT photovoltaic semiconductors laser luminescent system, photovoltaic charge and discharge control and constant current driving integration are realized in same main circuit, using two-way DC converter circuit, realize that photovoltaic power generation automatically switches between the two with semiconductor laser output, i.e. when there is illumination, reversible transducer is switched to input pattern, carries out battery storage to photovoltaic cell capable of generating power；When no light, reversible transducer is switched to output mode, and battery is discharged by DC converter, provides semiconductor laser luminous electric energy；The switching of single-chip microcontroller and its driving circuit control charging and discharging process and charging voltage and semiconductor laser size of current in circuit.
Description
Technical field
The present invention relates to one kind to be based on MPPT photovoltaic semiconductors laser luminescent system.
Background technique
In the prior art, it attempts to lead photovoltaic semiconductors laser luminaire using photovoltaic power generation energy-storage system and partly
The disadvantages of two autonomous systems of body laser driving circuit are composed, and will lead to complicated, at high cost installation, poor reliability.
For this purpose, photovoltaic semiconductors laser luminescent system designed by the present invention, using photovoltaic power generation energy storage control and semiconductor laser
Constant current, which drives, shares circuit kit, and percentage of circuit utilization is promoted, and reduces manufacturing cost.It is sharp to energy saving and environment friendly semiconductor is promoted
The luminous popularization of light device has major and immediate significance.
Summary of the invention
One kind being based on MPPT photovoltaic semiconductors laser luminescent system, and photovoltaic charge and discharge control is realized in same main circuit
Integration is driven with constant current, using two-way DC converter circuit, realizes that photovoltaic power generation and semiconductor laser export between the two
Automatically switch, i.e., when there is illumination, reversible transducer is switched to input pattern, carries out battery storage to photovoltaic cell capable of generating power；
When no light, reversible transducer is switched to output mode, and battery is discharged by DC converter, provides semiconductor laser hair
Photoelectricity energy；The switching of single-chip microcontroller and its driving circuit control charging and discharging process and charging voltage and semiconductor in circuit
Laser diode current size.
Battery charging voltage 13V or so, photovoltaic panel open-circuit voltage reach 21.5V, and charging needs decompression to handle, and use
The DC/DC conversion circuit of Buck topological structure；Electric power storage tank discharge uses the DC/DC conversion circuit of Boost, is semiconductor laser
Device driving provides electric energy.
The main circuit of device is two-way DC/DC translation circuit, by an inductance and multiple power MOS switch tubes, capacitor etc.
Composition；The switching that this circuit passes through two MOS power tube switch control Buck chargings and Boost electric discharge.
The photovoltaic charged course of work of two-way DC/DC translation circuit are as follows: metal-oxide-semiconductor disconnects, and forms Buck structure DC/DC
Translation circuit；Single-chip microcontroller controls the switch of the metal-oxide-semiconductor of Buck circuit, exports certain voltage or electric current, charges to battery.
The relationship of power and output voltage of the photovoltaic panel under reference intensity of illumination, environment temperature
In extremum conditions, dP/dV=0 is obtained
Wherein DI, DV are the parameters about photovoltaic panel under reference light intensity, reference temperature environment, and Isc is solar panel short circuit
Electric current.
Using the dedicated colloid storage battery of photovoltaic, one group of working output voltage DC12V, the work of semiconductor laser load
Voltage range carries out the transformation of D/C voltage, MOS using Boost translation circuit in DC36~48V, system battery discharge process
Switching tube connects the circuit Boost, and the electric energy of battery savings is to load discharge；The PWM letter of switching tube Q1 is adjusted by single-chip microcontroller
Number, the size of output current semiconductor laser diode current is adjusted, realizes the constant current driving of noise spectra of semiconductor lasers load.
For system using STM8 single-chip microcontroller as control core, peripheral circuit includes the signals such as data acquisition, PWM and I/O control
Driving circuit；Intensity of illumination, temperature, the parameters letter such as voltage/current of battery, photovoltaic array and semiconductor laser load
Breath is converted the ADC interface for being sent into STM8 by corresponding driving circuit, is AD converted；Signal element output signal is controlled, is led to
Overdrive circuit controls corresponding MOS switch pipe, realizes MPPT charging, semiconductor laser constant current-supplying；Use IR remote controller
It is communicated with host, running parameter needed for being arranged, host man-machine interface shows corresponding working state.
Detailed description of the invention
Fig. 1 is the main circuit diagram provided by the invention based on MPPT photovoltaic semiconductors laser luminescent system.
Fig. 2 is the control design case frame diagram provided by the invention based on MPPT photovoltaic semiconductors laser luminescent system.
Specific embodiment
Photovoltaic charge and discharge control and constant current driving integration are realized in same main circuit, need to be converted using bidirectional, dc
Device circuit.Two-way DC converter circuit is realized that photovoltaic power generation automatically switches between the two with semiconductor laser output, that is, is being had
When illumination, reversible transducer is switched to input pattern, carries out battery storage to photovoltaic cell capable of generating power；When no light, two-way change
Parallel operation is switched to output mode, and battery is discharged by DC converter, provides semiconductor laser luminous electric energy.It is single in circuit
The switching of piece machine and its driving circuit control charging and discharging process and charging voltage and semiconductor laser size of current.
1. circuit design
1.1 circuit structure
One group of charging voltage 13V of this system battery or so, photovoltaic panel open-circuit voltage reach 21.5V, and charging needs to be depressured
Processing, classical scheme are the DC/DC conversion circuits using Buck topological structure.Electric power storage tank discharge is turned using the DC/DC of Boost
Circuit is changed, provides electric energy for semiconductor laser driving.This system charge and discharge and semiconductor laser constant current driving one, circuit
It is the two-way DC/DC converter of Buck-Boost that basic framework is changed on the basis of Buck and Boost circuit.
As shown in Figure 1, the main circuit of this system is two-way DC/DC translation circuit, by an inductance and multiple power MOS
The composition such as switching tube, capacitor.This circuit is discharged by two switch control Buck chargings of MOS power tube Q4 and Q1 and Boost
Switching.
1.2 working principle
1.2.1 MPPT maximum power point tracking charging technique
The photovoltaic charged course of work of two-way DC/DC translation circuit are as follows: metal-oxide-semiconductor Q2, Q1 are disconnected, and form Buck structure
DC/DC translation circuit.Single-chip microcontroller controls the switch of the metal-oxide-semiconductor Q4 of Buck circuit, certain voltage or electric current is exported, to battery
Charging.Photovoltaic panel is only under a specific output voltage, and capable of just obtaining maximum photoelectric conversion efficiency, (i.e. output power is most
Greatly).It is influenced by external light intensity and temperature, output Upmax is variation.This system is by MPPT algorithm, practical
Accuracy rating in, suitable photovoltaic panel output voltage is set and guarantees that system has maximum photoelectric conversion efficiency as much as possible.
The relationship of power and output voltage of the photovoltaic panel under reference intensity of illumination, environment temperature
In extremum conditions, dP/dV=0 is obtained
Wherein DI, DV are the parameters about photovoltaic panel under reference light intensity, reference temperature environment, and Isc is solar panel short circuit
Electric current.Expression formula is a transcendental equation, and the voltage Vmax of corresponding maximum power point can be solved by Newton iteration method.
By handling simplifying for iterative method, the manageable MPPT algorithm in low side single-chip microcontroller is realized, by single-chip microcontroller
Control MOS switch pipe Q4 pwm signal duty ratio, adjust equivalent Buck translation circuit output voltage and input voltage it is big
It is small.In accuracy rating appropriate, the MPPT control of charging link is realized.
1.2.2 electric discharge driving load
This system, which uses, uses the dedicated colloid storage battery of photovoltaic, one group of working output voltage DC12V, and semiconductor laser
The operating voltage range of device load is mostly in DC36~48V, so system battery discharge process, using Boost translation circuit
The transformation of D/C voltage is carried out, MOS switch pipe Q2 connects the circuit Boost, and the electric energy of battery savings is to load discharge.Pass through monolithic
Machine adjusts the pwm signal of switching tube Q1, adjusts the size of output current semiconductor laser diode current, realizes noise spectra of semiconductor lasers
The constant current of load drives.
1.3 Control System Design
In view of some crucial control requirements of this system and manufacturing cost, control system is with ST Microelectronics
Single-chip microcontroller STM8S103F3 be control core.Relative to 8 now numerous single-chip microcontrollers, the cost performance of STM8 is very high:
One 10 continuous asymptotic expression analog-digital converters (ADC1) provide up to 5 multi-functional input channels and an internal multichannel
It is multiplexed input channel；16 general purpose timers have 3 channels CAPCOM (IC, OC or PWM), can meet the control of this system
Functional requirement.
For control design case frame as shown in Fig. 2, system is using STM8 single-chip microcontroller as control core, peripheral circuit includes that data are adopted
The driving circuit of the signals such as collection, PWM and I/O control.Intensity of illumination, temperature, battery, photovoltaic array and semiconductor laser are negative
The parameter informations such as the voltage/current of load are converted the ADC interface for being sent into STM8 by corresponding driving circuit, are AD converted.Root
According to programmed algorithm, signal element output signal is controlled, corresponding MOS switch pipe is controlled by driving circuit and (is believed containing regular tap
Number and pwm signal), realize MPPT charging, semiconductor laser constant current-supplying.It is communicated with IR remote controller with host, if
Required running parameter is set, host man-machine interface shows corresponding working state.
In addition, this system is by the acquisition control to data such as battery current, voltages, also have to accumulator super-charge,
The items defencive function such as over-discharge.
2. test macro
Experimental verification is carried out to the system that the present invention designs.Major parameter: photovoltaic module nominal maximum power voltage
17.5V, maximum power electric current 5.71A, short circuit current 6.31A；Energy storage device uses one group of colloid battery, charging voltage
13.8V；Semiconductor laser load rating power 40W measures operating voltage 31.6V, operating current 1.2A.
It charges this stage in system to energy-storage battery, MPPT control is carried out to photovoltaic cell voltage output, by semi-transparent
Bright object changes the received intensity of illumination of optical sensor, and system constantly regulate charging voltage, measuring system PV output
Voltage value and the result of Matlab emulation are close, and the time of response also reaches expected control effect in tolerance band.Experiment
In circuit, as shown in Figure 1, measurement R5 both end voltage waveform (surveying the variation of semiconductor laser load current indirectly), obtains wave
Shape is stablized, and fluctuation is within 3% up and down.Illustrate the fine constant current driving effect of controller.
The present invention has carried out the research of MPPT independent photovoltaic high power semiconductor lasers luminous power, uses by letter
The iterative method of change realizes MPPT control, is improved charge efficiency to a certain extent.And this system charges low profile photovoltaic
System is effectively combined with semiconductor laser luminescent control system, save the cost, reduces the volume of equipment, convenient for promoting.
The above for those of ordinary skill in the art can according to the technique and scheme of the present invention and technology
Other various corresponding changes and modifications are made in design, and all these change and modification all should belong to the appended right of the present invention
It is required that protection scope.
Claims (7)
1. one kind is based on MPPT photovoltaic semiconductors laser luminescent system, which is characterized in that realize photovoltaic in same main circuit
Charge and discharge control and constant current driving integration, using two-way DC converter circuit, realization photovoltaic power generation and semiconductor laser
Output is automatically switched between the two, i.e., when there is illumination, reversible transducer is switched to input pattern, stores to photovoltaic cell capable of generating power
Battery storage；When no light, reversible transducer is switched to output mode, and battery is discharged by DC converter, provides and partly lead
Body laser shines electric energy；The switching of single-chip microcontroller and its driving circuit control charging and discharging process in circuit, and charging electricity
Pressure and semiconductor laser size of current.
2. being based on MPPT photovoltaic semiconductors laser luminescent device as described in claim 1, which is characterized in that battery charging
Voltage 13V or so, photovoltaic panel open-circuit voltage reach 21.5V, and charging needs decompression to handle, using the DC/DC of Buck topological structure
Conversion circuit；Electric power storage tank discharge uses the DC/DC conversion circuit of Boost, provides electric energy for semiconductor laser driving.
3. as described in claim 1-2 any one based on MPPT photovoltaic semiconductors laser luminescent device, which is characterized in that
The main circuit of device is two-way DC/DC translation circuit, is made of an inductance and multiple power MOS switch tubes, capacitor etc.；This electricity
The switching that road passes through two MOS power tube switch control Buck chargings and Boost electric discharge.
4. as claimed in any one of claims 1-3 be based on MPPT photovoltaic semiconductors laser luminescent device, which is characterized in that
The photovoltaic charged course of work of two-way DC/DC translation circuit are as follows: metal-oxide-semiconductor disconnects, and forms Buck structure DC/DC translation circuit；
Single-chip microcontroller controls the switch of the metal-oxide-semiconductor of Buck circuit, exports certain voltage or electric current, charges to battery.
5. as described in claim 1-4 any one based on MPPT photovoltaic semiconductors laser luminescent device, feature exists
In the relationship of power and output voltage of the photovoltaic panel under reference intensity of illumination, environment temperature
In extremum conditions, dP/dV=0 is obtained
Wherein DI, DV are the parameters about photovoltaic panel under reference light intensity, reference temperature environment, and Isc is solar panel short circuit current.
6. as described in claim 1-5 any one based on MPPT photovoltaic semiconductors laser luminescent device, feature exists
In using the dedicated colloid storage battery of photovoltaic, one group of working output voltage DC12V, the operating voltage of semiconductor laser load
Range carries out the transformation of D/C voltage, MOS switch using Boost translation circuit in DC36~48V, system battery discharge process
Pipe connects the circuit Boost, and the electric energy of battery savings is to load discharge；The pwm signal of switching tube Q1 is adjusted by single-chip microcontroller, is adjusted
The size of section output current semiconductor laser diode current realizes the constant current driving of noise spectra of semiconductor lasers load.
7. it is as claimed in any one of claims 1 to 6 based on MPPT photovoltaic semiconductors laser luminescent device, feature exists
In for system using STM8 single-chip microcontroller as control core, peripheral circuit includes the driving electricity of the signals such as data acquisition, PWM and I/O control
Road；Intensity of illumination, temperature, the parameter informations such as voltage/current of battery, photovoltaic array and semiconductor laser load, pass through
The ADC interface of STM8 is sent into corresponding driving circuit conversion, is AD converted；Signal element output signal is controlled, driving is passed through
The corresponding MOS switch pipe of circuit control realizes MPPT charging, semiconductor laser constant current-supplying；With IR remote controller and host
It is communicated, running parameter needed for being arranged, host man-machine interface shows corresponding working state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810957370.2A CN109088472A (en) | 2018-08-22 | 2018-08-22 | One kind being based on MPPT photovoltaic semiconductors laser luminescent system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810957370.2A CN109088472A (en) | 2018-08-22 | 2018-08-22 | One kind being based on MPPT photovoltaic semiconductors laser luminescent system |
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| CN109088472A true CN109088472A (en) | 2018-12-25 |
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| CN201810957370.2A Withdrawn CN109088472A (en) | 2018-08-22 | 2018-08-22 | One kind being based on MPPT photovoltaic semiconductors laser luminescent system |
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Cited By (3)
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| CN109617041A (en) * | 2019-02-21 | 2019-04-12 | 西南交通大学 | A kind of energy management of photovoltaic energy storage system and control device |
| CN109888834A (en) * | 2019-04-15 | 2019-06-14 | 河南省科学院能源研究所有限公司 | A kind of photovoltaic generating system for improving MPPT method and coupling control with battery self-balancing quick charge |
| CN113890337A (en) * | 2021-08-25 | 2022-01-04 | 杭州中恒电气股份有限公司 | Photovoltaic direct current converter output voltage control method, electronic device and storage medium |
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| CN109888834A (en) * | 2019-04-15 | 2019-06-14 | 河南省科学院能源研究所有限公司 | A kind of photovoltaic generating system for improving MPPT method and coupling control with battery self-balancing quick charge |
| CN113890337A (en) * | 2021-08-25 | 2022-01-04 | 杭州中恒电气股份有限公司 | Photovoltaic direct current converter output voltage control method, electronic device and storage medium |
| CN113890337B (en) * | 2021-08-25 | 2024-04-30 | 杭州中恒电气股份有限公司 | Output voltage control method for optical Fu Zhiliu converter, electronic device and storage medium |
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