CN110173648A - Based on without battery pass through the grid-connected solar street light of alternating current and its control method - Google Patents
Based on without battery pass through the grid-connected solar street light of alternating current and its control method Download PDFInfo
- Publication number
- CN110173648A CN110173648A CN201910380386.6A CN201910380386A CN110173648A CN 110173648 A CN110173648 A CN 110173648A CN 201910380386 A CN201910380386 A CN 201910380386A CN 110173648 A CN110173648 A CN 110173648A
- Authority
- CN
- China
- Prior art keywords
- grid
- gird
- switch unit
- solar
- battery panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
- F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
- F21S9/03—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
-
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/103—Outdoor lighting of streets or roads
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
Abstract
It is based on passing through the grid-connected solar street light of alternating current, including solar battery panel, voltage acquisition unit, first switch unit, second switch unit, gird-connected inverter, two-way ammeter, street lamp and single-chip microcontroller without battery the present invention provides one kind；The voltage acquisition unit and the monolithic mechatronics, and the voltage for acquiring the solar battery panel；The first switch unit and the monolithic mechatronics, and be series between the solar battery panel and the gird-connected inverter；The second switch unit and the monolithic mechatronics, and be series between the street lamp and the gird-connected inverter；The two-way ammeter is series between the gird-connected inverter and state's net standard circuit.The present invention also provides a kind of control methods of power supply unit.
Description
Technical field
It is based on passing through the grid-connected solar street light of alternating current and its control method without battery the present invention relates to one kind.
Background technique
Solar power generation is as a kind of novel renewable energy just by people's Devoting Major Efforts To Developing.And solar street light is then wherein
Technology is more mature, and widely used one.Existing solar street light generally all includes battery, which is used for
Store extra electricity daytime.But most held due to the restricted lifetime of battery (2~3 years) as solar street light at present
The highest component of easy to damage and cost needs frequently to be replaced, to further limit further answering for solar street light
With.
Summary of the invention
The present invention provides one kind based on without battery by the grid-connected solar street light of alternating current and its control method, can be with
Effectively solve the above problems.
The present invention is implemented as follows:
The present invention provides one kind and is based on passing through the grid-connected solar street light of alternating current, including solar battery face without battery
Plate, voltage acquisition unit, first switch unit, second switch unit, gird-connected inverter, two-way ammeter, street lamp and single-chip microcontroller；
The voltage acquisition unit and the monolithic mechatronics, and the voltage for acquiring the solar battery panel；Described
One switch unit and the monolithic mechatronics, and be series at the solar battery panel and the gird-connected inverter it
Between；The second switch unit and the monolithic mechatronics, and be series between the street lamp and the gird-connected inverter；
The two-way ammeter is series between the gird-connected inverter and state's net standard circuit.
The present invention also provides a kind of based on the control method for passing through the grid-connected solar street light of alternating current without battery, including with
Lower step:
S1 obtains the voltage of the solar battery panel SC by the voltage acquisition unit；
S2 judges whether the voltage is lower than threshold voltage v by the single-chip microcontroller S, is to enter step S3, no to enter step
Rapid S4；
S3, control first switch unit opens, second switch unit closure, and passes through state's net standard circuit, described
Gird-connected inverter GTI is powered the street lamp RL；And
S4, control first switch unit closure, second switch unit are opened, and the electric energy of the solar battery panel SC is logical
It crosses the gird-connected inverter GTI and state's net standard circuit carries out grid-connected output.
The beneficial effects of the present invention are: it is provided by the invention based on without battery by the grid-connected solar street light of alternating current and
The output electric energy of solar battery panel is directly incorporated to state's network mark by cancelling the use of the battery by its control method
In directrix road, so as to significantly reduce the cost of solar street light, and without the frequent replacement for carrying out battery, further
Reduce maintenance cost；To extend the application of solar battery.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention
Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as
It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is provided in an embodiment of the present invention based on the circuit connection for passing through the grid-connected solar street light of alternating current without battery
Schematic diagram.
Fig. 2 is provided in an embodiment of the present invention based on the control method for passing through the grid-connected solar street light of alternating current without battery
Flow chart.
Specific embodiment
To keep the purposes, technical schemes and advantages of embodiment of the present invention clearer, implement below in conjunction with the present invention
The technical solution in embodiment of the present invention is clearly and completely described in attached drawing in mode, it is clear that described reality
The mode of applying is some embodiments of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to the present invention
The range of protection.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below and is wanted
The scope of the present invention of protection is sought, but is merely representative of selected embodiment of the invention.Based on the embodiment in the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts belongs to this
Invent the range of protection.
In the description of the present invention, term " first ", " second " are used for description purposes only, and should not be understood as instruction or dark
Show relative importance or implicitly indicates the quantity of indicated technical characteristic.The feature of " first ", " second " is defined as a result,
It can explicitly or implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two
It is a or more than two, unless otherwise specifically defined.
Shown in referring to Fig.1, the embodiment of the present invention provides one kind and is based on passing through the grid-connected solar street light of alternating current without battery,
It is opened including solar battery panel SC, voltage acquisition unit (in figure unlabeled), first switch unit (in figure unlabeled), second
Close unit (unlabeled in figure), gird-connected inverter GTI, two-way ammeter Kwh, street lamp RL and single-chip microcontroller S.The voltage acquisition list
It is first to be electrically connected with the single-chip microcontroller S, and the voltage for acquiring the solar battery panel SC；The first switch unit with
The single-chip microcontroller S electrical connection, and be series between the solar battery panel SC and the gird-connected inverter GTI；It is described
Second switch unit is electrically connected with the single-chip microcontroller S, and is series between the street lamp RL and the gird-connected inverter GTI；
The two-way ammeter Kwh is series between the gird-connected inverter GTI and state's net standard circuit.
Specifically, the voltage acquisition unit may include first resistor R1, second resistance R2, the first converter AD,
Capacitor C and diode D1；The first resistor R1 and the second resistance R2 are connected in series, and the first resistor R1 and
The second resistance R2 is integrally in parallel with the solar battery panel SC；One end of the first converter AD is connected to
Between the first resistor R1 and the second resistance R2, the other end is electrically connected with the single-chip microcontroller S；The capacitor C and institute
Solar battery panel SC is stated to be in parallel；The diode D1 is series at the solar battery panel SC and described grid-connected inverse
Become between device GTI.It is appreciated that the capacitor C of the first resistor R1 and second resistance R2 parallel connection.First AD
Converter AD is for being converted into digital signal for the voltage of solar battery panel SC and being sent to single-chip microcontroller S.Introduce capacitor C's
The reason is that obtain the voltage of smooth steady by filtering, because the voltage at capacitor both ends will not generate mutation, it can press down
The fluctuation of voltage processed makes voltage become steady smooth, thus the exchange RF coupling between removal devices.As further improvement
, the resistance value of the first resistor R1 and the second resistance R2 are equal, and the first resistor R1 and second resistance R2
Standard resistance range be 1 kilo-ohm~2 kilo-ohms between.
The first switch unit includes the first photo-coupler O1 and the first P-channel MOSFET pipe K1；The first P ditch
The source electrode of road MOSFET pipe K1 connects the solar battery panel SC；The drain electrode of the first P-channel MOSFET pipe K1 connects
Gird-connected inverter GTI, the first photo-coupler O1 are series at grid and the institute of the drain electrode of the first P-channel MOSFET pipe
It states between single-chip microcontroller S.The first photo-coupler O1 is managed for exporting first switch signal to the first P-channel MOSFET
K1。
As further improved, the second switch unit includes the second photo-coupler O2 and the second P-channel
MOSFET pipe K2；The source electrode of the second P-channel MOSFET pipe K2 connects the street lamp RL；The second P-channel MOSFET pipe
The drain electrode of K2 connects gird-connected inverter GTI, and the second photo-coupler O2 is series at the leakage of the second P-channel MOSFET pipe K2
Between the grid of pole and the single-chip microcontroller S.The second photo-coupler O2 is for exporting second switch signal to the 2nd P
Channel mosfet pipe K2.
As further improved, the single-chip microcontroller S is AT89c51.As further improved, the solar street light
It further comprise that the second diode D2 is series between the gird-connected inverter GTI and the street lamp RL.
Solar street light provided in an embodiment of the present invention when in use, can be by described in voltage acquisition unit acquisition
The voltage signal of solar battery panel SC, when the voltage signal of the solar battery panel SC is lower than certain threshold voltage v
Or when there is no voltage signal, first switch unit can control to open, second switch unit closure, at this point, passing through state's network mark
Directrix road, the gird-connected inverter GTI are powered the street lamp RL；When the voltage signal of the solar battery panel SC
When higher than the threshold voltage v or having voltage signal, first switch unit closure, second switch unit can control to open, at this point,
The electric energy of the solar battery panel SC is carried out grid-connected defeated by the gird-connected inverter GTI and state's net standard circuit
Out.
Output power due to solar battery panel SC at the cloudy day is usually 20% or so of the output power of fine day.When
When the output power of solar battery panel SC is 5%~10% or so of the output power of fine day, so that it may assert day
It is black to a certain extent, need to open state's net standard circuit and the street lamp RL be powered.Therefore it can be by setting the threshold value
When voltage v opens and is closed the first switch unit and the second switch unit to set.The threshold voltage v is excellent
It is selected asWherein Vmax is the solar battery panel
The maximum output voltage of SC, P are the peak power output of the solar battery panel SC, and R is load.
Referring to figure 2., embodiment of this case also provides a kind of control method of solar street light, comprising the following steps:
S1 obtains the voltage of the solar battery panel SC by the voltage acquisition unit；
S2 judges whether the voltage is lower than threshold voltage v by the single-chip microcontroller S, is to enter step S3, no to enter step
Rapid S4；
S3, control first switch unit opens, second switch unit closure, and passes through state's net standard circuit, described
Gird-connected inverter GTI is powered the street lamp RL；And
S4, control first switch unit closure, second switch unit are opened, and the electric energy of the solar battery panel SC is logical
It crosses the gird-connected inverter GTI and state's net standard circuit carries out grid-connected output.
In step s 2, the threshold voltage v is preferably
Wherein Vmax is the maximum output voltage of the solar battery panel SC, and the maximum that P is the solar battery panel SC is defeated
Power out, R are load.
The embodiment of the present invention also provides a kind of be based on without battery by the grid-connected solar street light of alternating current, by solar energy
Battery panel SC, voltage acquisition unit, first switch unit, second switch unit, gird-connected inverter GTI, two-way ammeter Kwh with
And single-chip microcontroller S composition.The voltage acquisition unit is electrically connected with the single-chip microcontroller S, and for acquiring the solar battery face
The voltage of plate SC；The first switch unit is electrically connected with the single-chip microcontroller S, and be series at the solar battery panel SC with
And between the gird-connected inverter GTI；The second switch unit is electrically connected with the single-chip microcontroller S, and be series at street lamp RL with
And between the gird-connected inverter GTI；The two-way ammeter Kwh is series at the gird-connected inverter GTI and state's network mark directrix
Between road.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for this field
For technical staff, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. one kind based on without battery pass through the grid-connected solar street light of alternating current, which is characterized in that including solar battery panel,
Voltage acquisition unit, first switch unit, second switch unit, gird-connected inverter, two-way ammeter, street lamp and single-chip microcontroller；Institute
State voltage acquisition unit and the monolithic mechatronics, and the voltage for acquiring the solar battery panel；Described first
Switch unit and the monolithic mechatronics, and be series between the solar battery panel and the gird-connected inverter；
The second switch unit and the monolithic mechatronics, and be series between the street lamp and the gird-connected inverter；Institute
Two-way ammeter is stated to be series between the gird-connected inverter and state's net standard circuit.
2. according to claim 1 be based on passing through the grid-connected solar street light of alternating current without battery, which is characterized in that described
Voltage acquisition unit includes first resistor, second resistance, the first converter, capacitor and diode；The first resistor with
And the second resistance is connected in series, and the first resistor and second resistance entirety and the solar battery panel phase
It is in parallel；One end of first converter is connected between the first resistor and the second resistance, the other end and institute
State monolithic mechatronics；The capacitor is in parallel with the solar battery panel；The Diode series are in the solar energy
Between battery panel and the gird-connected inverter.
3. according to claim 1 be based on passing through the grid-connected solar street light of alternating current without battery, which is characterized in that described
The resistance value of first resistor and the second resistance is equal.
4. according to claim 1 be based on passing through the grid-connected solar street light of alternating current without battery, which is characterized in that described
First switch unit includes that the first photo-coupler and the first P-channel MOSFET are managed；The source electrode of the first P-channel MOSFET pipe
Connect the solar battery panel；The drain electrode of the first P-channel MOSFET pipe connects gird-connected inverter, first optocoupler
Clutch is series between the grid and the single-chip microcontroller of the drain electrode of the first P-channel MOSFET pipe.
5. according to claim 1 be based on passing through the grid-connected solar street light of alternating current without battery, which is characterized in that described
Second switch unit includes that the second photo-coupler and the second P-channel MOSFET are managed；The source electrode of the second P-channel MOSFET pipe
Connect the street lamp；The drain electrode of the second P-channel MOSFET pipe connects gird-connected inverter, and second photo-coupler is series at
Between the grid and the single-chip microcontroller of the drain electrode of the second P-channel MOSFET pipe.
6. according to claim 1 be based on passing through the grid-connected solar street light of alternating current without battery, which is characterized in that described
Single-chip microcontroller is AT89c51.
7. according to claim 1 be based on passing through the grid-connected solar street light of alternating current without battery, which is characterized in that into one
Step includes the second Diode series between the gird-connected inverter and the street lamp.
8. a kind of control method of solar street light as described in claim 1, which comprises the following steps:
S1 obtains the voltage of the solar battery panel by the voltage acquisition unit；
S2 judges whether the voltage is lower than threshold voltage by the single-chip microcontroller, is to enter step S3, no to enter step S4；
S3, control first switch unit opens, second switch unit closure, and passes through state's net standard circuit, described grid-connected
Inverter is powered the street lamp；And
S4, control first switch unit closure, second switch unit are opened, and the electric energy of the solar battery panel passes through described
Gird-connected inverter and state's net standard circuit carry out grid-connected output.
9. control method according to claim 8, which is characterized in that the threshold voltage v be 0.22Vmax~
0.3Vmax, wherein Vmax is the maximum output voltage of the solar battery panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910380386.6A CN110173648B (en) | 2019-05-08 | 2019-05-08 | Grid-connected solar street lamp based on commercial power without storage battery and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910380386.6A CN110173648B (en) | 2019-05-08 | 2019-05-08 | Grid-connected solar street lamp based on commercial power without storage battery and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110173648A true CN110173648A (en) | 2019-08-27 |
| CN110173648B CN110173648B (en) | 2023-05-23 |
Family
ID=67690523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910380386.6A Active CN110173648B (en) | 2019-05-08 | 2019-05-08 | Grid-connected solar street lamp based on commercial power without storage battery and control method thereof |
Country Status (1)
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| CN (1) | CN110173648B (en) |
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| TW201403007A (en) * | 2012-07-03 | 2014-01-16 | Yao-Hsien Fu | Solar air conditioning and power supply system |
| CN106602703A (en) * | 2016-12-28 | 2017-04-26 | 佛山市索尔电子实业有限公司 | Solar-energy and commercial-power alternative power supply system and method thereof |
| CN207422048U (en) * | 2017-09-26 | 2018-05-29 | 凯里学院 | A kind of solar energy mains hybrid intelligent campus street lamp |
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2019
- 2019-05-08 CN CN201910380386.6A patent/CN110173648B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06332554A (en) * | 1993-05-24 | 1994-12-02 | Sanyo Electric Co Ltd | Controlling method for photovoltaic system |
| GB2388974A (en) * | 2003-01-21 | 2003-11-26 | Solargen Solutions Ltd | A solar power generation and illumination system |
| CN2852496Y (en) * | 2005-05-27 | 2006-12-27 | 合肥工业大学 | Solar energy road lamp controller |
| CN101714763A (en) * | 2009-09-03 | 2010-05-26 | 周德佳 | High-efficiency stable multifunctional single-stage photovoltaic single-phase grid-connected control method |
| CN102163871A (en) * | 2010-12-24 | 2011-08-24 | 广东美的电器股份有限公司 | Multi-power supply system and method |
| CN102097854A (en) * | 2010-12-31 | 2011-06-15 | 广东美的电器股份有限公司 | Multi-power supply feed system and control method thereof |
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| CN102522810A (en) * | 2012-01-06 | 2012-06-27 | 宋京伟 | Solar energy and utility power complementary power supply control system |
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| CN207422048U (en) * | 2017-09-26 | 2018-05-29 | 凯里学院 | A kind of solar energy mains hybrid intelligent campus street lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110173648B (en) | 2023-05-23 |
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