CN103096562A - Solar light emitting diode (LED) lighting driving system based on numerical control - Google Patents
Solar light emitting diode (LED) lighting driving system based on numerical control Download PDFInfo
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- CN103096562A CN103096562A CN 201110338728 CN201110338728A CN103096562A CN 103096562 A CN103096562 A CN 103096562A CN 201110338728 CN201110338728 CN 201110338728 CN 201110338728 A CN201110338728 A CN 201110338728A CN 103096562 A CN103096562 A CN 103096562A
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Abstract
The invention discloses a solar light emitting diode (LED) lighting driving system based on numerical control. The solar LED lighting driving system based on the numerical control comprises a solar battery pack, a direct current (DC) / DC converter, a maximum power point tracking (MPPT) charging control module, a storage battery pack, an LED lighting pulse-width modulation (PWM) control module, an LED light source and a digital signal controller, wherein an output end of the solar battery pack is sequentially connected with the DC / DC converter, the MPPT charging control module, the storage battery pack, the LED lighting PWM control module and the LED light source, and an output end of the digital signal controller is connected with the DC / DC converter, the MPPT charging control module and an input end of the LED lighting PWM control module. By application of the solar LED lighting driving system, high energy utilization efficiency, high operation reliability and high practical value can be achieved.
Description
Technical field
The present invention relates to a kind of LED lighting driving system, relate in particular to a kind ofly based on numerically controlled solar LED lighting driving system, belong to technical field of solar.
Background technology
Solar cell and LED illumination are that the typical case of new forms of energy and efficient energy-saving technology uses, and the solar energy LED illuminate is to utilize solar cell that the solar energy in the Nature is converted to electric energy, offers LED light source.Due to the low-voltage of LED light source, the feature such as energy-conservation and long-acting, the application of solar LED illuminating system will realize very high efficiency of energy utilization, functional reliability and practical value.Common application now has solar LED Lawn lamp, solar LED street lamp and the solar energy LED illuminate lamp etc.
Summary of the invention
The present invention provides a kind of based on numerically controlled solar LED lighting driving system for solving the problems of the technologies described above, when the LED illuminator needs the electric energy power supply, adopt PWM to control type of drive, provide electric current and voltage safely and efficiently to the LED lighting source, make LED illuminator safety, stable, efficient and work reliably, the green illumination of clean environmental protection is provided for work and life.
the present invention for achieving the above object, adopt following technical scheme: a kind of based on numerically controlled solar LED lighting driving system, comprise solar battery group, DC/DC transducer and MPPT charge control module, batteries, LED illumination PWM control module, LED light source and digital signal controller, the output of described solar battery group connects DC/DC transducer and MPPT charge control module successively, batteries, LED illumination PWM control module, LED light source, the output of digital signal controller connects respectively the input of DC/DC transducer and MPPT charge control module and LED illumination PWM control module.
The invention has the beneficial effects as follows: LED illuminator of the present invention is when electric energy is powered, adopt PWM to control type of drive, provide electric current and voltage safely and efficiently to the LED lighting source, make LED illuminator safety, stable, efficient and work reliably, the green illumination of clean environmental protection is provided for work and life.
Description of drawings
Fig. 1 is system architecture diagram;
Fig. 2 is control-driven system hardware principle schematic diagram;
Fig. 3 is that DSC controls photovoltaic DC-DC conversion/MPPT;
Fig. 4 is that the LED illumination drives control.
Embodiment
describe below in conjunction with the technical scheme implementation method of accompanying drawing to invention: in Fig. 1, a kind of based on numerically controlled solar LED lighting driving system, comprise solar battery group, DC/DC transducer and MPPT charge control module, batteries, LED illumination PWM control module, LED light source and digital signal controller, the output of described solar battery group connects DC/DC transducer and MPPT charge control module successively, batteries, LED illumination PWM control module, LED light source, the output of digital signal controller connects respectively the input of DC/DC transducer and MPPT charge control module and LED illumination PWM control module, in the time period that sunlight is arranged, solar battery group is converted into electric energy with the solar energy that collects, under the control of control system, adopt solar-energy photo-voltaic cell MPPT mode, with electrical power storage in batteries, when the LED illuminator needs the electric energy power supply, adopt PWM to control type of drive, provide electric current and voltage safely and efficiently to the LED lighting source, make LED illuminator safety, stable, efficient and work reliably, the green illumination of clean environmental protection is provided for work and life.
In Fig. 2, this system is according to the Advances in New Technology of the output of solar-energy photo-voltaic cell electric energy and the characteristics that store and LED illumination control driving as can be known, designed a kind of new type solar energy LED illuminator and controlled the Driving technique scheme, control program can realize MPPT management of charging and discharging, the LED illumination control driven management to solar cell and storage battery.The hardware block diagram of system as shown in Figure 2, control-driven system is take digital signal controller DSPIC33FJ16GS502 as kernel control chip, this is a new generation's 16 position digital signal controllers (DSC) of Microchip Technology, the difference of DSC and single-chip microcomputer, be to have increased the DSP resource, centered by single-chip microcomputer (MCU) and merged DSP, have MCU and DSP two class instructions.The DSP engine includes 17 * 17 multipliers of a high speed, and can carry out 16 has sign multiplication and division arithmetic, can carry out decimal or integer DSP multiplication, 40 ALU, two 40 saturated accumulators and 40 two-way barrel shift registers.DsPIC33F series DSC supports numerical control system comprehensively, abundant PWM controls and the ADC translation function is particularly suitable for DC/DC conversion, power management and LED Lighting Control Assembly, can satisfy the design to solar battery group, batteries MPPT, discharge and recharge the throw light on control and management of driving of controls, DC/DC conversion and control and LED.
In Fig. 3, for solar-energy photo-voltaic cell is controlled full digital DC/DC conversion and the MPPT circuit that charging circuit employing digital signal controller is core, transducer adopts the double mode topological circuit structure of voltage raising and reducing, such circuit structure can obtain higher conversion efficiency in the scope from V in＞V out to V in＜V out, in the situation of voltage higher or lower than the voltage of batteries of solar photovoltaic cell panel, but under the management of digitial controller photovoltaic cell efficient operation all.VT2, VT3, VT4 are subjected to respectively 3 road pwm signals of DSC to drive control, U2 and U3 are digital temperature sensor DS18B20, adopt the monobus thermometric, transmit the working temperature of solar cell and storage battery to DSC, obtain the solar cell output voltage from the R2 sampling, obtain accumulator voltage from the R11 sampling, sample charging current from R10, these sampled datas are all digital signal by the A/D Channel-shifted of DSC, for MPPT controls and whole driving control system work provides working status parameter, realize the control of closed-loop digital system.MPPT controls and adopts is the disturbance observation of control variables based on duty ratio, because the output of solar-energy photo-voltaic cell is nonlinear characteristic, for improving its utilance, MPPT is carried out in the output of solar-energy photo-voltaic cell to be controlled, so that the power output of solar photovoltaic cell panel reaches maximization under different temperature and intensity of solar radiation, see Fig. 4, the design is with MPPT and DC/DC converter incorporates, play the impedance transformation effect of solar-energy photo-voltaic cell load with high efficiency transducer, again under the control and management of DSC, seek the maximal power tracing of the solar energy LED illuminate drive system.
in Fig. 4, for driving, LED illumination of the present invention is controlled to be the control of PWM mode constant pressure and flow, tunable optical multi-path large power LED drives control, inductance L 3, power MOSFET tube VT6 and VD4 consist of step-up DC/DC transducer, the duty ratio of PWM by controlling PWM3H output, obtain a stable output voltage, PWM3L, these 3 PWM passages of PWM4H and PWM4L carry out the constant current of LED multi-path illumination and control, R21, R23, R25 provides the current feedback sampling of LED illumination driving circuit, U5 is digital temperature sensor DS18B20, carry out data communication by monobus 1-wireBUS and digital signal controller dsPIC33F, give DSC with the temperature of LED lighting source, R16 provides the output voltage sampling to DSC, after DSC compares the parameters of each road sampling feedback parameter and program, by regulating the duty ratio of each PWM, make the LED lighting source obtain stable driving voltage and the electric current that arranges.VT7, VT8 and VT9 make LED light source realize wide dimming scope under the digital PWM signal controlling of DSC, under the control and management of digital signal controller DSC, the driving of LED lighting source is controlled had comprehensive overvoltage, overcurrent and thermal protection function.
Claims (1)
1. one kind based on numerically controlled solar LED lighting driving system, it is characterized in that, comprise solar battery group, DC/DC transducer and MPPT charge control module, batteries, LED illumination PWM control module, LED light source and digital signal controller, the output of described solar battery group connects DC/DC transducer and MPPT charge control module, batteries, LED illumination PWM control module, LED light source successively, and the output of digital signal controller connects respectively the input of DC/DC transducer and MPPT charge control module and LED illumination PWM control module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110338728 CN103096562A (en) | 2011-11-01 | 2011-11-01 | Solar light emitting diode (LED) lighting driving system based on numerical control |
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| CN 201110338728 CN103096562A (en) | 2011-11-01 | 2011-11-01 | Solar light emitting diode (LED) lighting driving system based on numerical control |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103228082A (en) * | 2013-05-29 | 2013-07-31 | 泸州卓峰新能源科技有限公司 | Intelligent-control solar LED street lamp |
| CN103680250A (en) * | 2013-12-06 | 2014-03-26 | 余新奎 | Solar copier for painting and calligraphy |
| CN103775323A (en) * | 2014-01-24 | 2014-05-07 | 苏州市职业大学 | Solar photovoltaic water pump automatic control device |
| CN104066258A (en) * | 2014-07-15 | 2014-09-24 | 大连交通大学 | LED lighting and dimming control system based on PWM |
| CN104754838A (en) * | 2015-04-15 | 2015-07-01 | 西交利物浦大学 | Multi-path LED drive circuit using solar energy to supply power |
| CN104768311A (en) * | 2015-04-30 | 2015-07-08 | 苏州承乐电子科技有限公司 | Control device for solar LED street lamp |
| CN109560692A (en) * | 2018-12-29 | 2019-04-02 | 杰华特微电子（杭州）有限公司 | A kind of dual chip power circuit |
| CN110379361A (en) * | 2019-07-25 | 2019-10-25 | 苏州市职业大学 | The color LED dot matrix screen of photovoltaic power supply |
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2011
- 2011-11-01 CN CN 201110338728 patent/CN103096562A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103228082A (en) * | 2013-05-29 | 2013-07-31 | 泸州卓峰新能源科技有限公司 | Intelligent-control solar LED street lamp |
| CN103680250A (en) * | 2013-12-06 | 2014-03-26 | 余新奎 | Solar copier for painting and calligraphy |
| CN103680250B (en) * | 2013-12-06 | 2016-07-06 | 余新奎 | Solar energy painting and calligraphy Copy trainer |
| CN103775323A (en) * | 2014-01-24 | 2014-05-07 | 苏州市职业大学 | Solar photovoltaic water pump automatic control device |
| CN104066258A (en) * | 2014-07-15 | 2014-09-24 | 大连交通大学 | LED lighting and dimming control system based on PWM |
| CN104754838A (en) * | 2015-04-15 | 2015-07-01 | 西交利物浦大学 | Multi-path LED drive circuit using solar energy to supply power |
| CN104768311A (en) * | 2015-04-30 | 2015-07-08 | 苏州承乐电子科技有限公司 | Control device for solar LED street lamp |
| CN109560692A (en) * | 2018-12-29 | 2019-04-02 | 杰华特微电子（杭州）有限公司 | A kind of dual chip power circuit |
| CN110379361A (en) * | 2019-07-25 | 2019-10-25 | 苏州市职业大学 | The color LED dot matrix screen of photovoltaic power supply |
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Application publication date: 20130508 |