CN102573198A - Controller for solar street lights - Google Patents
Controller for solar street lights Download PDFInfo
- Publication number
- CN102573198A CN102573198A CN2010106247090A CN201010624709A CN102573198A CN 102573198 A CN102573198 A CN 102573198A CN 2010106247090 A CN2010106247090 A CN 2010106247090A CN 201010624709 A CN201010624709 A CN 201010624709A CN 102573198 A CN102573198 A CN 102573198A
- Authority
- CN
- China
- Prior art keywords
- circuit
- solar street
- street lamp
- controller
- temperature
- 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.)
- Pending
Links
Images
Classifications
-
- 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
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a controller for solar street lights, comprising a controller, a stabilized voltage, a charge/discharge circuit, a temperature-compensating circuit, an over-discharge and overload protection circuit and other circuits; wherein the controller is peripheral interface controller (PIC) singlechip and the temperature-compensating circuit consists of negative temperature coefficient themistors and resistors connected in series. The singlechip properly controls charging voltage and discharge voltage of storage batteries by calculating resistance of the themistors and sampling temperature parameters, thereby meeting the need of temperature compensation of the storage batteries in areas with changeable environment and obvious climate differences, improving reliability and stability of the system, more effectively protecting the storage batteries and extending the service life of the controller for solar street lights.
Description
Affiliated technical field
The present invention relates to solar facilities, particularly a kind of solar street lamp controller.
Background technology
Solar energy more and more receives people's attention as a kind of new forms of energy of environmental protection.The utilization of solar energy is also more and more wider, such as solar street light.Compare traditional street lamp, solar street light adopts the solar energy resources of " inexhaustible ", ecological, environmental protective; And solar street lamp controller is housed, and automaticity is very high, and maintenance cost is cheap.But in some areas, because environment is changeable big with climate difference, the voltage and current that solar cell array sends is not very stable, and is though solar street lamp controller can carry out management of charging and discharging, for solar street light provides electricity, unstable.
Summary of the invention
In order to overcome above problem, the present invention provides a kind of solar street lamp controller that temperature-compensation circuit is housed.
The technical solution adopted for the present invention to solve the technical problems is: this solar street lamp controller lets slip year protective circuit by controller, burning voltage, charging and discharging circuit, temperature-compensation circuit, mistake and other circuit are formed.Wherein temperature-compensation circuit is composed in series by the thermistor of negative temperature coefficient and resistance.Simultaneously, single-chip microcomputer compares sampled value and the magnitude of voltage that is stored in the single-chip microcomputer through the sample temperature parameter, charging voltage, the discharge voltage of storage battery are suitably controlled, thus protection storage battery and solar street light.
The invention has the beneficial effects as follows, improved the reliability and the stationarity of system, protect storage battery more effectively, prolong the useful life of solar street lamp controller.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is a theory diagram of the present invention.
Fig. 2 is a main circuit schematic diagram of the present invention.
Fig. 3 is the schematic diagram of temperature-compensation circuit.
Embodiment
This solar street lamp controller lets slip year protective circuit by controller, burning voltage, charge-discharge circuit, temperature-compensation circuit, mistake and other circuit are formed.
Wherein, controller is the PIC single-chip microcomputer.
Burning voltage is realized the voltage stabilizing of level behind the power supply for the three terminal regulator through the low pressure differential low-power consumption, is stablized, pure+the 5V DC power supply.
Charging and discharging circuit is parallelly connected with storage battery with discharge control valve M2 by charging control valve M1, and metal-oxide-semiconductor is as switching tube.Wherein, charge circuit is made up of Schottky diode SBD2, protection diode D1 and metal-oxide-semiconductor.Schottky diode SBD1 fills diode as counnter attack, connects with M1; Discharge loop is made up of Schottky diode SBD3, protection diode D2 and metal-oxide-semiconductor.
Temperature-compensation circuit is composed in series by the thermistor Rt1 of negative temperature coefficient and resistance R 7.
Cross to let slip and carry protective circuit by metal-oxide-semiconductor and R
LSeries connection constitutes, and is controlled by optocoupler U3.
Other circuit comprise anti-thunderbolt, high tension protection circuit, by piezo-resistance R
VForm.
Among Fig. 1; Parameters such as single-chip microcomputer cycle detection solar cell terminal voltage, battery tension, solar street light electric current, ambient temperature; Proofread and correct according to the gained parameter, and select the duty ratio of suitable pwm pulse signal, thereby storage battery is realized the constant voltage charge of different amplitudes; When each protection point of storage battery, can realize the Different control action, storage battery is protected, reach best charging effect.Simultaneously; The resistance and the Current Temperatures of the NTC thermistor in the single-chip microcomputer accounting temperature compensating circuit come the sample temperature parameter; Sampled value and the magnitude of voltage that is stored in the single-chip microcomputer are compared, charging voltage, the discharge voltage of storage battery are suitably controlled, thus protection storage battery and solar street light.
In embodiment illustrated in fig. 2, charge and discharge the topological structure that circuit adopts parallelly connected charge and discharge, can realize quick PWM charging modes.Specifically, charging control valve M1 and discharge control valve M2 and storage battery employing parallel way, at selector switch Guan Shiyong MOS as switching tube.Adopt Schottky diode SBD1 to fill diode in the circuit, prevent that storage battery is to the solar cell reverse charging as counnter attack.Schottky diode SBD2 and SBD3 have improved the switching speed of M1 and M2 pipe.D1 and D2 are the protection diodes, prevent the damage of surge voltage to metal-oxide-semiconductor.
Simultaneously, the interpolar conducting resistance RDS when utilizing the metal-oxide-semiconductor conducting is as electric grippe detecting device, M3 and R
LSeries connection when the pressure drop on detecting RDS surpasses setting, explains that the solar street light electric current reaches maximum permissible value, and single-chip microcomputer turn-offs through optocoupler U3 control M3.After electric current recovered normally, M3 can open again again and resume work, and compared with adopting the protective tube mode, has solar street light and storage battery are carried out the effect of transient protection, and reaction speed is fast, belongs to from the recovery type.Lead acid accumulator overdischarge meeting has a strong impact on its useful life; Therefore; When it is supplied power to solar street light, must note over, be lower than when putting the point voltage value, send control signal at once when single-chip microcomputer detects accumulator voltage; Be coupled through U3 and control M3 and turn-off, realized putting protection.Because single-chip microcomputer is controlled the switch of metal-oxide-semiconductor through optocoupler, has reduced phenomenons such as interference, vibration and misoperation, make system's operation more steadily, reliable, reduced personnel's maintenance.
D3 can prevent because polarity connects the damage that causes on the contrary solar street light.
Solar street lamp controller also has anti-thunderbolt or high voltage protective function except that having above-mentioned functions, when system is struck by lightning or high pressure is done the time spent, at the piezo-resistance R of input
VCan protect controller not to be damaged, can continue after the recovery to use.
In the embodiment shown in fig. 3, temperature-compensation circuit is composed in series by the thermistor Rt1 of negative temperature coefficient and resistance R 7.Because of the resistance of thermistor relevant with temperature; Can the variation that variation of temperature converts voltage to be used for detecting; Its resistance approximately linear in certain temperature range changes, and can be used as temperature sensor and uses, and realizes temperature-compensating; Thereby guarantee the changeable and big area of climate difference, the stable operation of accumulator cell charging and discharging at environment.
Claims (7)
1. solar street lamp controller, by controller, burning voltage, charging and discharging circuit, cross to let slip and carry protective circuit and other circuit are formed, it is characterized in that: this solar street lamp controller is equipped with temperature-compensation circuit.
2. solar street lamp controller according to claim 1 is characterized in that: temperature-compensation circuit is composed in series by the thermistor Rt1 of negative temperature coefficient and resistance R 7.
3. solar street lamp controller according to claim 1 is characterized in that: controller is the PIC single-chip microcomputer.
4. solar street lamp controller according to claim 1 is characterized in that: charging and discharging circuit is parallelly connected with storage battery with discharge control valve M2 by charging control valve M1, and metal-oxide-semiconductor is as switching tube; Wherein, charge circuit is made up of Schottky diode SBD2, protection diode D1 and metal-oxide-semiconductor; Schottky diode SBD1 fills diode as counnter attack, connects with M1; Discharge loop is made up of Schottky diode SBD3, protection diode D2 and metal-oxide-semiconductor.
5. solar street lamp controller according to claim 1 is characterized in that: cross to let slip and carry protective circuit by metal-oxide-semiconductor and R
LBe composed in series, and control by optocoupler U3.
6. solar street lamp controller according to claim 1 is characterized in that: other circuit comprise anti-thunderbolt, high tension protection circuit.
7. other circuit according to claim 6 is characterized in that: anti-thunderbolt, high tension protection circuit are by piezo-resistance R
VForm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106247090A CN102573198A (en) | 2010-12-24 | 2010-12-24 | Controller for solar street lights |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106247090A CN102573198A (en) | 2010-12-24 | 2010-12-24 | Controller for solar street lights |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102573198A true CN102573198A (en) | 2012-07-11 |
Family
ID=46417338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106247090A Pending CN102573198A (en) | 2010-12-24 | 2010-12-24 | Controller for solar street lights |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102573198A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111092459A (en) * | 2018-10-23 | 2020-05-01 | 成都共同进步信息技术有限公司 | Lithium battery online charging and discharging management power supply system in broadcasting equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4661758A (en) * | 1980-02-22 | 1987-04-28 | Lane S. Garrett | Solar power supply and battery charging circuit |
| CN101146394A (en) * | 2007-08-02 | 2008-03-19 | 安研 | Optical road lamp load control device |
| CN201594797U (en) * | 2009-12-11 | 2010-09-29 | 南京格海新能源有限公司 | Photovoltaic intelligent direct-current controller |
-
2010
- 2010-12-24 CN CN2010106247090A patent/CN102573198A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4661758A (en) * | 1980-02-22 | 1987-04-28 | Lane S. Garrett | Solar power supply and battery charging circuit |
| CN101146394A (en) * | 2007-08-02 | 2008-03-19 | 安研 | Optical road lamp load control device |
| CN201594797U (en) * | 2009-12-11 | 2010-09-29 | 南京格海新能源有限公司 | Photovoltaic intelligent direct-current controller |
Non-Patent Citations (1)
| Title |
|---|
| 张鹏等: "小功率智能型太阳能控制器的设计", 《现代电子技术》, no. 18, 30 September 2007 (2007-09-30), pages 177 - 180 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111092459A (en) * | 2018-10-23 | 2020-05-01 | 成都共同进步信息技术有限公司 | Lithium battery online charging and discharging management power supply system in broadcasting equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201985788U (en) | Solar power generation controller | |
| CN201781293U (en) | Intelligent solar charge-discharge controller | |
| CN101242107B (en) | Self-adaptive solar charging controller | |
| CN105428735A (en) | Storage-control-integrated solar energy lithium battery module | |
| CN1655419A (en) | Accumulator fast / slow charging control method | |
| CN203788025U (en) | Storage battery charging and discharging management circuit | |
| US20130342946A1 (en) | Parallel protection circuit for solar module | |
| CN202586382U (en) | Photovoltaic off-grid 48V control power supply possessing charging and discharging function | |
| CN201549909U (en) | Multifunctional solar energy charging comprehensive protection controller | |
| CN201252410Y (en) | Power supply equipment of bridge monitoring system | |
| CN202513632U (en) | Double-loop highly-reliable charging controlling device | |
| CN204205630U (en) | Solar cell Intelligent charge control device | |
| CN203632903U (en) | Solar street lamp controller | |
| CN109802453B (en) | Intelligent charging management module and management method for photovoltaic power supply | |
| CN102427264A (en) | Design method of solar power supply controller | |
| CN102573198A (en) | Controller for solar street lights | |
| CN105490317A (en) | Intelligent charging control device for solar cell | |
| CN201946122U (en) | Wind energy, solar energy and electric energy complemented traffic signal light | |
| CN205141737U (en) | Boats and ships hold battery measurement intelligent control ware | |
| CN103683394A (en) | Charge protection circuit for storage battery | |
| CN201504110U (en) | Intelligent balanced lithium battery power supply | |
| CN2459808Y (en) | Solar energy electricity generation recharge/discharge intelligent controller | |
| CN102468668A (en) | Intelligent solar photovoltaic controller | |
| CN201490748U (en) | Multifunctional controller | |
| CN201260085Y (en) | Solar energy controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |